NHS3100
Temperature logger
Rev. 6.03 — 15 June 2018 Product data sheet
1 General description
The NHS3100 is an IC optimized for temperature monitoring and logging. It has
an embedded NFC interface, an internal temperature sensor and a direct battery
connection. These features support an effective system solution with a minimal number
of external components and a single layer foil implementation for temperature monitoring.
The NHS3100 works either battery-powered or NFC-powered.
The embedded ARM Cortex-M0+ offers flexibility to the users of this IC to implement
their own dedicated solution. The NHS3100 contains multiple features, including multiple
Power-down modes and a selectable CPU frequency of up to 8 MHz, for ultra low power
consumption.
Users can program this NHS3100 with the industry-wide standard solutions for ARM
Cortex-M0+ processors.
As of September 22, 2017, this device has been certified by the NFC forum (certification
ID: 58516).
CAUTION
Semiconductors are light sensitive. Exposure to light sources can cause the IC to
malfunction. The IC must be protected against light. The protection must be applied to all
sides of the IC.
CAUTION
msc896
This device is sensitive to ElectroStatic Discharge (ESD). Observe precautions for handling
electrostatic sensitive devices.
Such precautions are described in the ANSI/ESD S20.20, IEC/ST 61340-5, JESD625-A or
equivalent standards.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
2 / 45
2 Features and benefits
2.1 System
ARM Cortex-M0+ processor running at frequencies of up to 8 MHz
ARM Cortex-M0+ built-in Nested Vectored Interrupt Controller (NVIC)
ARM Serial Wire Debug (SWD)
System tick timer
IC reset input
2.2 Memory
32 kB on-chip flash programming memory
4 kB on-chip EEPROM of which 320 bytes are write-protected
8 kB SRAM
2.3 Digital peripherals
Up to 12 General Purpose Input Output (GPIO) pins with configurable pull-up/pull-down
resistors and repeater mode
GPIO pins which can be used as edge and level sensitive interrupt sources
High-current drivers (sink only; 20 mA) on four GPIO pins
High-current drivers (sink only; 20 mA) on two I2C-bus pins
Programmable WatchDog Timer (WDT)
2.4 Analog peripherals
Temperature sensor with ±0.3 °C absolute temperature accuracy between 0 °C and
40 °C and ±0.5 °C in the range −40 °C and +85 °C
2.5 Communication interfaces
NFC/RFID ISO 14443 type A interface; NFC forum type 2 compatible
I2C-bus interface supporting full I2C-bus specification and Fast-mode with a data rate of
400 kbit/s, with multiple-address recognitions and Monitor mode
2.6 Clock generation
8 MHz internal RC oscillator, trimmed to 2 % accuracy, which is used for the system
clock
Timer oscillator operating at 32 kHz linked to the RTC timer unit
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
3 / 45
2.7 Power control
Support for 1.72 V to 3.6 V external voltages
The NHS3100 can also be powered from the NFC field.
Activation via NFC possible
Integrated Power Management Unit (PMU) for versatile control of power consumption
Four reduced power modes for ARM Cortex-M0+: Sleep, Deep-sleep, Deep power-
down and Battery-off
Power gating for each analog peripheral for ultra-low power operation
< 50 nA IC current consumption in Battery-off mode at 3.0 V
Power-On Reset (POR)
2.8 General
Unique device serial number for identification
3 Applications
Temperature measurement
Temperature logging
Cold chain validation
4 Ordering information
Table 1. Ordering information
PackageType number
Name Description Version
NHS3100 HVQFN24 plastic thermal enhanced very thin quad flat package; no leads;
24 terminals; body 4 × 4 × 0.85 mm
SOT616-3
NHS3100UK WLCSP25 wafer level chip-scale package; 25 balls; 2.51 × 2.51 × 0.5 mm SOT1401-1
NHS3100W8 bumped die bumped die with 8 functional bumps; 2.51 × 2.51 × 0.16 mm SOT1870-1
5 Marking
Table 2. Marking codes
Type number Marking code
NHS3100 NHS3100
NHS3100UK NHS3100
NHS3100W8 no marking code
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
4 / 45
6 Block diagram
The internal block diagram of the NHS3100 is shown in Figure 1. It consists of a Power
Management Unit (PMU), clocks, timers, a digital computation, and a control cluster
(ARM Cortex-M0+ and memories) and AHB-APB slave modules.
POWER
PADS
PADS
WAKE-UP
TIMER
32 kHz FRO
CLOCK
SHOP
EXTERNAL
POWER
SWITCH
INTERNAL
POWER
SWITCHES
POR
LDO (1.6 V)
LDO (1.2 V)
8 MHz FRO
MFIO
(DIGITAL)
HIGH
DRIVE
DIGITAL
SWITCH
MATRIX I2C-BUS SPI GPIO
32 kB FLASH
4 kB EEPROM
ARM M0+
AHB-APB BRIDGE
8 kB SRAM
PMU
NFC/RFID
FLASH
CONTROL
EEPROM
CONTROL
TIMERS WATCHDOG SYSCONFIG
IOCONFIG
TEMPERATURE
SENSOR
I2C-BUS
aaa-015348
Figure 1. NHS3100 block diagram
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
5 / 45
7 Pinning information
7.1 Pinning
7.1.1 HVQFN24 package
Figure 2 shows the pad layout of the NHS3100 in the HVQFN24 package.
aaa-015349
Transparent top view
PIO0_7/CT16B_M1
PIO0_8/MISO
PIO0_9/MOSI
PIO0_3/CT16B_M0
PIO0_6/SCLK PIO0_10/CT32B_M0/SWCLK
PIO0_2/SSEL PIO0_11/CT32B_M1/SWDIO
PIO0_1/CLKOUT (reserved)
PIO0_0/WAKEUP (reserved)
25 VSS
VDDBAT
VSS
RESETN
(reserved)
PIO0_4/SCL
PIO0_5/SDA
(
r
e
s
e
r
v
e
d
)
(
r
e
s
e
r
v
e
d
)
(
r
e
s
e
r
v
e
d
)
(
r
e
s
e
r
v
e
d
)
L
A
L
B
terminal 1
index area
6 13
5 14
4 15
3 16
2 17
1 18
7
8
9
10
11
12
2
4
2
3
2
2
2
1
2
0
1
9
Figure 2. Pad configuration HVQFN24
Table 3. Pad allocation table of the HVQFN24 package
Pad Symbol Pad Symbol
1 PIO0_0/WAKEUP 13[1] PIO0_7/CT16B_M1
2 PIO0_1/CLKOUT 14[1] PIO0_3/CT16B_M0
3 PIO0_2/SSEL 15[1] PIO0_10/CT32B_M0/SWCLK
4 PIO0_6/SCLK 16[1] PIO0_11/CT32B_M1/SWDIO
5 PIO0_8/MISO 17[2] (reserved)
6 PIO0_9/MOSI 18[2] (reserved)
7 VDDBAT 19 LB
8 VSS 20 LA
9 RESETN 21[2] (reserved)
10 (reserved) 22[2] (reserved)
11 PIO0_4/SCL 23[2] (reserved)
12 PIO0_5/SDA 24[2] (reserved)
[1] High source current pads. See Section 8.6.3.
[2] These pads must be tied to ground.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
6 / 45
Table 4. Pad description of the HVQFN24 package
Pad Symbol Type Description
Supply
7 VDDBAT supply positive supply voltage
8 VSS supply ground
GPIO[1]
PIO0_0 I/O GPIO1
WAKEUP I Deep power-down mode wake-up pin[2]
PIO0_1 I/O GPIO2
CLKOUT O clock output
PIO0_2 I/O GPIO3
SSEL I SPI/SSP serial select line
PIO0_3 I/O GPIO14
CT16B_M0 O 16-bit timer match output 0
PIO0_4 I/O GPIO11
SCL I/O I2C-bus SCL clock line
PIO0_5 I/O GPIO12
SDA I/O I2C-bus SDA data line
PIO0_6 I/O GPIO4
SCLK I/O SPI/SSP serial clock line
PIO0_7 I/O GPIO13
CT16B_M1 O 16-bit timer match output 1
PIO0_8 I/O GPIO5
MISO O SPI/SSP master-in slave-out line
PIO0_9 I/O GPIO6
MOSI I SPI/SSP master-out slave-in line
PIO0_10 I/O GPIO
CT32B_M0 O 32-bit timer match output 0
15
SWCLK I ARM SWD clock
PIO0_11 I/O GPIO
CT32B_M1 O 32-bit timer match output 1
16
SWDIO I/O ARM SWD I/O
Radio
20 LA A NFC antenna/coil terminal A
19 LB A NFC antenna/coil terminal B
Reset
9 RESETN I external reset input[3]
[1] The GPIO port is a 12-bit I/O port with individual direction and function controls for each bit. The operation of port 0 pads
depends on the function selected through the IOCONFIG register block.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
7 / 45
[2] If external wake-up is enabled on this pad, it must be pulled HIGH before entering Deep power-down mode and pulled
LOW for a minimum of 100 µs to exit Deep power-down mode. It has weak pull-up to VBAT or internal NFC voltage
(whichever is highest).
[3] A LOW on this pad resets the device. This reset causes I/O ports and peripherals to take on their default states, and
processor execution to begin at address 0. It has weak pull-up to VDDBAT.
7.1.2 WLCSP25 package
Figure 3 shows the ball layout of the NHS3100 in the WLCSP25 package.
A
B
C
D
E
ball A1
index area NHS3100UK
aaa-024187
Transparent top view
1 2 3 4 5
Figure 3. Ball configuration WLCSP25
Table 5. Ball allocation table of the WLCSP25 package
Ball Symbol Ball Symbol
A1 VDDBAT C4[1] PIO0_7/CT16B_M1
A2 VSS C5[1] PIO0_11/CT32B_M1/SWDIO
A3 RESETN D1 PIO0_0/WAKEUP
A4 PIO0_4/SCL D2 PIO0_1/CLKOUT
A5 PIO0_5/SDA D3[2] (reserved)
B1 PIO0_8/MISO D4[2] (reserved)
B2 PIO0_9/MOSI D5[2] (reserved)
B3 (reserved) E1[2] (reserved)
B4[1] PIO0_3/CT16B_M0 E2[2] (reserved)
B5[1] PIO0_10/CT32B_M0/SWCLK E3[2] (reserved)
C1 PIO0_2/SSEL E4 LA
C2 PIO0_6/SCLK E5 LB
C3 VSS - -
[1] High source current balls. See Section 8.6.3.
[2] These balls must be tied to ground.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
8 / 45
Table 6. Ball description of the WLCSP25 package
Ball Symbol Type Description
Supply
A1 VDDBAT supply positive supply voltage
A2, C3 VSS supply ground
GPIO[1]
PIO0_0 I/O GPIOD1
WAKEUP I Deep power-down mode wake-up pin[2]
PIO0_1 I/O GPIOD2
CLKOUT O clock output
PIO0_2 I/O GPIOC1
SSEL I SPI/SSP serial select line
PIO0_3 I/O GPIOB4
CT16B_M0 O 16-bit timer match output 0
PIO0_4 I/O GPIOA4
SCL I/O I2C-bus SCL clock line
PIO0_5 I/O GPIOA5
SDA I/O I2C-bus SDA data line
PIO0_6 I/O GPIOC2
SCLK I/O SPI/SSP serial clock line
PIO0_7 I/O GPIOC4
CT16B_M1 O 16-bit timer match output 1
PIO0_8 I/O GPIOB1
MISO O SPI/SSP master-in slave-out line
PIO0_9 I/O GPIOB2
MOSI I SPI/SSP master-out slave-in line
PIO0_10 I/O GPIO
CT32B_M0 O 32-bit timer match output 0
B5
SWCLK I ARM SWD clock
PIO0_11 I/O GPIO
CT32B_M1 O 32-bit timer match output 1
C5
SWDIO I/O ARM SWD I/O
Radio
E4 LA A NFC antenna/coil terminal A
E5 LB A NFC antenna/coil terminal B
Reset
A3 RESETN I external reset input[3]
[1] The GPIO port is a 12-bit I/O port with individual direction and function controls for each bit. The operation of port 0 pins
depend on the function selected through the IOCONFIG register block.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
9 / 45
[2] If external wake-up is enabled on this pin, it must be pulled HIGH before entering Deep power-down mode and pulled
LOW for a minimum of 100 μs to exit Deep power-down mode.
[3] A LOW on this pin resets the device. This reset causes I/O ports and peripherals to take on their default states, and
processor execution to begin at address 0. It has weak pull-up to VDDBAT or internal NFC voltage (whichever is highest).
7.1.3 NHS3100W8 gold bump version
Figure 4 shows the bump layout of the NHS3100W8.
aaa-025706
5
4
789
1
12
11
10
32
6
pin numbering
Figure 4. Bump configuration Bump die: Top view, bumps up
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
10 / 45
Table 7. Bump allocation table of the NHS3100W8 package
Bump Symbol Bump Symbol
1 PIO0_0/WAKEUP 7 TP1
2 TP0 8 VSS
3 LA 9 VDDBAT
4 LB 10 PIO0_6
5 PIO0_11/CT32B_M1/SWDIO 11 TP2
6 PIO0_10/CT32B_M0/SWCLK 12 TP3
Table 8. Bump description of the NHS3100W8 package
Bump Symbol Type Description
Supply
9 VDDBAT supply positive supply voltage
8 VSS supply ground
GPIO[1]
PIO0_0 I/O GPIO1
WAKEUP I Deep power-down mode wake-up pin[2]
10 PIO0_6 I/O GPIO
PIO0_10 I/O GPIO
CT32B_M0 O 32-bit timer match output 0
6
SWCLK I ARM SWD clock
PIO0_11 I/O GPIO
CT32B_M1 O 32-bit timer match output 1
5
SWDIO I/O ARM SWD I/O
Radio
3 LA A NFC antenna/coil terminal A
4 LB A NFC antenna/coil terminal B
Test pins
2 TP0 - test pin - do not connect
7 TP1 - test pin - do not connect, or connect to ground
11 TP2 - test pin - do not connect
12 TP3 - test pin - do not connect
[1] The GPIO port is a 12-bit I/O port with individual direction and function controls for each bit. The operation of port 0 balls
depends on the function selected through the IOCONFIG register block.
[2] If external wake-up is enabled on this ball, it must be pulled HIGH before entering Deep power-down mode and pulled
LOW for a minimum of 100 μs to exit Deep power-down mode.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
11 / 45
8 Functional description
8.1 ARM Cortex-M0+ core
Refer to the Cortex-M0+ Devices Technical Reference Manual (Ref. 1) for a detailed
description of the ARM Cortex-M0+ processor.
The NHS3100 ARM Cortex-M0+ core has the following configuration:
System options
Nested Vectored Interrupt Controller (NVIC)
Fast (single-cycle) multiplier
System tick timer
Support for wake-up interrupt controller
Vector table remapping register
Reset of all registers
Debug options
Serial Wire Debug (SWD) with two watchpoint comparators and four breakpoint
comparators
Halting debug is supported
8.2 Memory map
Figure 5 shows the memory and peripheral address space of the NHS3100.
The only AHB peripheral device on the NHS3100 is the GPIO module. The APB
peripheral area is 512 kB in size. Each peripheral is allocated 16 kB of space.
All peripheral register addresses are 32-bit word aligned. Byte and halfword addressing is
not possible. All reading and writing are done per full word.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
12 / 45
aaa-017231
0x4000 0000
0x4000 4000
0x4000 C000
0x4003 4000
0x4001 4000
0x4003 C000
0x4003 8000
0x4004 0000
0x4004 4000
0x4004 8000
0x4005 4000
0x4005 8000
0x4006 0000
l2C-bus
watchdog timer
(reserved)
16-bit timer
(reserved)
32-bit timer
(reserved)
EEPROM controller
PMU
flash controller
SPI/SSP
IOCONFIG
system configuration
(reserved)
RTC timer
(reserved)
RFID/NFC
(reserved)
temperature sensor
0x0000 7FFF
0x0000 0000
0x0FFF FFFF
0x0000 8000
0x2FFF FFFF
0x1000 2000
0x1000 1FFF
0x1000 0000
0x3000 0FFF
0x3000 0000
0x3000 1000
0x3FFF FFFF
0x4007 FFFF
0x4000 0000
0x4FFF FFFF
0x4008 0000
0x501F FFFF
0x5000 0000
0x5020 0000
0xE01F FFFF
0xE000 0000
0xFFFF FFFF
0xE020 0000
0xDFFF FFFF
(reserved)
(reserved)
(reserved)
(reserved)
(reserved)
(reserved)
private peripheral bus
AHB peripherals
APB peripherals
4 kB EEPROM
8 kB SRAM
32 kB on-chip flash
0x5001 0000
0x5000 FFFF
0x5000 0000
0x501F FFFF
GPIO PIO0
(reserved)
AHB peripherals
APB peripherals
Figure 5. NHS3100 memory map
8.3 System configuration
The system configuration APB block controls oscillators, start logic, and clock generation
of the NHS3100. Also included in this block is a register for remapping the interrupt
vector table.
8.3.1 Clock generation
The NHS3100 Clock Generator Unit (CGU) includes two independent RC oscillators.
These oscillators are the System Free-Running Oscillator (SFRO) and the Timer Free-
Running Oscillator (TFRO).
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
13 / 45
The SFRO runs at 8 MHz. The system clock is derived from it and can be set to 8 MHz,
4 MHz, 2 MHz, 1 MHz, 500 kHz, 250 kHz, 125 kHz, or 62.5 kHz (Note: Some features
are not available when using the lower clock speeds). The TFRO runs at 32.768 kHz and
is the clock source for the timer unit. The TFRO cannot be disabled.
Following reset, the NHS3100 starts operating at the default 500 kHz system clock
frequency to minimize dynamic current consumption during the boot cycle.
The SYSAHBCLKCTRL register gates the system clock to the various peripherals and
memories. The temperature sensor receives a fixed clock frequency, irrespective of the
system clock divider settings, while the digital part uses the system clock (AHB clock 0).
Figure 6. NHS3100 clock generator block diagram
8.3.2 Reset
Reset has three sources on the NHS3100:
The RESETN pin
Watchdog reset
A software reset
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
14 / 45
8.4 Power management
The Power Management Unit (PMU) controls the switching between available power
sources and the powering of the different voltage domains in the IC.
8.4.1 System power architecture
The NHS3100 accepts power from two different sources: from the external power supply
pin VDDBAT, or from the built-in NFC/RFID rectifier.
The NHS3100 has a small automatic source selector that monitors the power inputs
(VBAT and VNFC, see Figure 7) as well as pin RESETN. The PSWBAT switch is kept
open until a trigger is given on pin RESETN or via the NFC field. If the trigger is given,
the always-on domain, VDD_ALON, itself is powered via the PSWBAT or the PSWNFC
switch: via VBAT, if VBAT > 1.72 V, or VNFC. Priority is given to VBAT when both VBAT
and VNFC are present.
The automatic source selector unit in the PMU decides on the powering of the internal
domains based on the power source.
If a voltage > 1.72 V is detected on VBAT and not VNFC, VBAT powers the internal
domains after a trigger on pin RESETN or via NFC.
If a voltage ≤ 1.72 V is detected on VBAT, and a higher voltage is detected on VNFC,
the internal domains are powered from VNFC.
If a voltage > 1.72 V is detected at both VBAT and VNFC, the internal domains are
powered from VBAT.
Switchover between power sources is possible. If initially both VBAT and VNFC are
available, the system is powered from VBAT. If VBAT then becomes unavailable
(because it is switched off externally, or by a PSWBAT/PSWNFC power switch
override), the internal domains are immediately powered from VNFC. Switchover is
supported in both directions.
The user can force the selection of the VBAT input by disabling the automatic power
switch, which disables the automatic source selector voltage comparator.
When on NFC power only (passive operation), connecting one or more 100 nF external
capacitors in parallel to a GPIO pad, and setting that pad as an output driven to logic 1, is
advised. Preferably a high-drive pin should be chosen and several pins can be connected
in parallel.
PSWNFC and PSWBAT are the power switches. PSWNFC connects power to the
VDD_ALON power net when an RF field is present. PSWBAT connects power from the
battery when a positive edge is detected on RESETN. If no RF power is available, the
PMU can open this PSWBAT switch, effectively switching off the device. After connecting
VDDBAT to a power source, the PSWBAT switch is open until a rising edge is detected
on RESETN or RF power is applied.
Each component of the NHS3100 resides in one of several internal power domains,
as indicated in Figure 7. The domains are VBAT, VNFC, VDD_ALON, VDD1V2 and
VDD1V6. The domains VDD_ALON, VDD1V2 and VDD1V6 are either powered or not
powered, depending on the mode of the NHS3100. There are 5 modes:
Active
Sleep
Deep-sleep
Deep power-down
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
15 / 45
Battery-off
The VDD_ALON domain contains BrownOut Detection (BOD). When enabled, it raises a
BOD interrupt if the VDD_ALON voltage drops below 1.8 V.
The PMU controls the Active, Sleep, Deep-sleep, and Deep power-down modes. In this
way, the power flows to the different internal components.
The PMU has two LDOs powering the internal VDD1V2 and VDD1V6 voltage domains.
LDO1V2 converts voltages in the range 1.72 V to 3.6 V to 1.22 V. LDO1V6 converts
voltages in the range 1.72 V to 3.6 V to 1.6 V. Each LDO can be enabled separately.
When powered via VNFC, a 1.2 nF buffer capacitor is included at the input of the LDOs.
The trigger detector (not shown in Figure 7) and the power gate have a leakage of less
than 50 nA, allowing a long shelf life before activation.
aaa-019962
AUTOMATIC SOURCE SELECTOR UNIT
< 1.85 V
1.72 V to 3.6 V
1.72 V to 3.6 V
1.2 V
75 kΩ
PMU
32 kHz FRO
ALWAYS-ON DOMAIN
pin mode override if PCON.WAKEUP set,
when entering Deep power-down mode
DIGITAL CORE
PERIPHERALS
VDD_ALON
PSWNFC
PSWBAT
VNFC
VBAT
RESETN
VDDBAT
LB
LA
PIO0_0
WAKEUP
ANALOG
PERIPHERALS,
FLASH MEMORY
EEPROM MEMORY
NFC core
RTC
BOD
LDO1V2
SFRO
LDO1V6
GPREGx
1.6 V
Figure 7. NHS3100 power architecture
Table 9 summarizes the PMU states and settings of the LDOs. Figure 8 shows the state
transitions.
Table 10 and Table 11 summarize the events that can influence wake-up from Deep
power-down or Deep-sleep modes (DEEPPDN or DEEPSLEEP to ACTIVE state
transition).
Table 9. IC power states
State VDD_ALON DPDN[1] Sleep or Deep-
sleep
LDO1 (1.2 V) LDO2 (1.6 V)
BATTERY-OFF (No power) no X[2] X[2] off off
ACTIVE yes 0 0 on on
DEEPPDN yes 1 0 off off
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
16 / 45
State VDD_ALON DPDN[1] Sleep or Deep-
sleep
LDO1 (1.2 V) LDO2 (1.6 V)
SLEEP/DEEPSLEEP yes 0 1 on on
[1] DPDN indicates whether the system is in Deep power-down mode.
[2] X = don’t care.
aaa-019373
BATTERY-OFF
ACTIVE
DEEP
POWER-DOWN
SLEEP OR
DEEP-SLEEP
Figure 8. PMU state transition diagram
Figure 9 shows the power-up sequence. Applying battery power when the PSWBAT
switch is closed, or NFC power becomes available, provides the always-on part with a
Power-On Reset (POR) signal. The TFRO is initiated, which starts a state machine in
the PMU. In the first state, the LDO1V2, powering the digital domain, is started. In the
second state, the LDO1V6, powering the analog domain, is started which starts the flash
memory. Enabling the LDO1V2, and the SFRO stabilizing, triggers the system_por. The
system is now considered to be ‘on’. The system can boot when the flash memory is fully
operational.
The total start-up time from trigger to active mode/boot is about 2.5 ms.
If there is no battery power, but there is RF power, the same procedure is followed
except that PSWNFC connects power to the LDOs.
The user cannot disable the TFRO as it is used by the PMU.
Table 10. State transition events for DEEPSLEEP to ACTIVE
Event Description
RESETN reset asserted
RTC event if the timer reaches preset value
Watchdog watchdog issues interrupt or reset
WAKEUP signal on WAKEUP pin
RF field RF field is detected, potential NFC command input (if set in PMU)
Start logic interrupt one of the enabled start logic interrupts is asserted
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
17 / 45
Table 11. State transition events for DEEPPDN to ACTIVE
Event Description
RESETN reset asserted
RTC event if the timer reaches preset value
WAKEUP signal on WAKEUP pin (when enabled)
RF field RF field is detected, potential NFC command input (if set in PMU)
aaa-016479
VDD_ALON
start TFRO enable 1.2 V LDO
enable 1.6 V LDO
for analog domain
and flash memory
POR always-on
domain
SFRO starts running
power
flash and
digital
power
analog
on
off
SFRO stable (64 µs)
system_por
Figure 9. NHS3100 power-up sequence
8.4.2 Power Management Unit (PMU)
The Power Management Unit (PMU) partly resides in the digital power domain and partly
in the always-on domain. The PMU controls the Sleep, Deep-sleep, and Deep power-
down modes and the power flow to the different internal circuit blocks. Five general-
purpose registers in the PMU can be used to retain data during Deep power-down mode.
These registers are located in the always-on domain. When configured, the PMU also
raises a BOD interrupt if VDD_ALON drops to below 1.8 V.
The power to the different APB analog slaves is controlled through a power-down
configuration register.
The power control register selects whether an ARM Cortex-M0+ controlled Power-down
mode (Sleep mode or Deep-sleep mode) or the Deep power-down mode is entered. It
also provides the flags for Sleep or Deep-sleep modes and Deep power-down mode
respectively. In addition, it contains the overrides for the power source selection.
8.5 Nested Vectored Interrupt Controller (NVIC)
The Nested Vectored Interrupt Controller (NVIC) is a part of the ARM Cortex-M0+. The
tight integration of the processor core and NVIC enables fast processing of interrupts,
dramatically reducing the interrupt latency.
8.5.1 Features
NVIC that is a part of the ARM Cortex-M0+
Tightly coupled interrupt controller provides low interrupt latency
Controls system exceptions and peripheral interrupts
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
18 / 45
Four programmable interrupt priority levels with hardware priority level masking
Software interrupt generation
8.5.2 Interrupt sources
Table 12 lists the interrupt sources for each peripheral function. Each peripheral device
may have one or more interrupt lines to the Nested Vectored Interrupt Controller. Each
line may represent more than one interrupt source. There is no significance or priority
about which line is connected where, except for certain standards from ARM.
Table 12. Connection of interrupt source to the Nested Vector Interrupt Controller
Exception
number
Vector
offset
Function Flags
0 to 12 - start logic wake-up
interrupts
each interrupt connected to a PIO0 input pin serves
as wake-up from Deep-sleep mode[1]
13 - RFID/NFC RFID/NFC access detected/command received/read
acknowledge
14 - RTC On/Off timer RTC on/off timer event interrupt
15 - I2C Slave Input (SI) (state change)
16 - CT16B 16-bit timer
17 - PMU power from NFC field detected
18 - CT32B 32-bit timer
19 - BOD brownout detection (power drop)
20 - SPI/SSP TX FIFO half empty/RX FIFO half full/RX time-out/RX
overrun
21 - TSENS temperature sensor end of conversion/low threshold/
high threshold
22 to 25 - - (reserved)
26 - WDT watchdog interrupt (WDINT)
27 - flash flash memory
28 - EEPROM EEPROM memory
29 to 30 - - (reserved)
31 - PIO0 GPIO interrupt status of port 0
[1] Interrupt 0 to 10 correspond to PIO0_0 to PIO0_10; interrupt 11 corresponds to RFID/NFC external access; interrupt 12
corresponds to the RTC On/Off timer.
8.6 I/O configuration
The I/O configuration registers control the electrical characteristics of the pads. The
following features are programmable:
Pin function
Internal pull-up/pull-down resistor or bus keeper function
Low-pass filter
I2C-bus mode for pads hosting the I2C-bus function
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
19 / 45
The IOCON registers control the function (GPIO or peripheral function), the input mode,
and the hysteresis of all PIO0_m pins. In addition, the I2C-bus pins can be configured for
different I2C-bus modes.
The FUNC bits in the IOCON registers can be set to GPIO (FUNC = 000) or to a
peripheral function. If the pins are GPIO pins, the GPIO0DIR registers determine whether
the pin is configured as an input or output. For any peripheral function, the pin direction
is controlled automatically depending on the functionality of the pin. The GPIO0DIR
registers have no effect on peripheral functions.
8.6.1 PIO0 pin mode
The MODE bits in the IOCON register allow the selection of on-chip pull-up or pull-down
resistors for each pin, or to select the repeater mode. The possible on-chip resistor
configurations are pull-up enabled, pull-down enabled, or no pull-up/pull-down. The
default value is no pull-up or pull-down enabled. The repeater mode enables the pull-up
resistor when the pin is at logic 1, and enables the pull-down resistor when the pin is at
logic 0. This mode causes the pin to retain its last known state if it is configured as an
input and is not driven externally. The state retention is not applicable to the Deep power-
down mode. Repeater mode is typically used to prevent a pin from floating when it is
temporarily not driven. Allowing it to float could potentially use significant power.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
20 / 45
8.6.2 PIO0 I2C-bus mode
If the FUNC bits of registers PIO0_4 and PIO0_5 select the I2C-bus function, the I2C-bus
pins can be configured for different I2C-bus modes:
Standard-mode/Fast-mode I2C-bus with input glitch filter (including an open-drain
output according to the I2C-bus specification)
Standard open-drain I/O functionality without input filter
8.6.3 PIO0 current source mode
PIO0_3, PIO0_7, PIO0_10 and PIO0_11 are high-source pads that can deliver up to
20 mA to the load. These PIO pins can be set to either digital mode or analog current
sink mode. In digital mode, the output voltage of the pad switches between VSS and
VDD. In analog current drive mode, the output current sink switches between the values
set by the ILO and IHI bits. The maximum pad voltage is limited to 5 V.
aaa-015353
repeater mode
enable
configured
as output
configured
as input
data input
data output
CDRIVE
IHI[7:0]
ILO[7:0]
CURRENT
SINK
pull-up enable
pull-up enable
ESD
ESD
PIN
Figure 10. Pin configuration with current source mode
8.7 Fast general-purpose parallel I/O
The GPIO registers control device pins that are not connected to a specific peripheral
function. Pins may be dynamically configured as inputs or outputs. Multiple outputs can
be set or cleared in one write operation.
The NHS3100 uses accelerated GPIO functions:
GPIO registers are on the ARM Cortex-M0+ I/O bus for fastest possible single-cycle I/O
timing
An entire port value can be written in one instruction
Mask, set, and clear operations are supported for the entire port
All GPIO port pins are fixed-pin functions that are enabled or disabled on the pins by the
switch matrix. Therefore each GPIO port pin is assigned to one specific pin and cannot
be moved to another pin.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
21 / 45
8.7.1 Features
Bit level port registers allow a single instruction to set and clear any number of bits in
one write operation
Direction control of individual bits
After reset, all I/Os default to GPIO inputs without pull-up or pull-down resistors; The
I2C-bus true open-drain pins PIO0_4 and PIO0_5 and the SWD pins PIO0_10 and
PIO0_11 are exceptions
Pull-up/pull-down Configuration, Repeater, and Open-drain modes can be programmed
through the IOCON block for each GPIO pin
Direction (input/output) can be set and cleared individually per pin
Pin direction bits can be toggled
8.8 I2C-bus controller
8.8.1 Features
Standard I2C-bus compliant interfaces may be configured as master, slave, or master/
slave.
Arbitration is handled between simultaneously transmitting masters without corruption
of serial data on the bus
Programmable clock allows adjustment of I2C-bus transfer rates
Data transfer is bidirectional between masters and slaves
Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus
Serial clock synchronization is used as a handshake mechanism to suspend and
resume serial transfer
Supports Standard-mode (100 kbit/s) and Fast-mode (400 kbit/s)
Optional recognition of up to four slave addresses
Monitor mode allows observing all I2C-bus traffic, regardless of slave address
The I2C-bus can be used for test and diagnostic purposes
The I2C-bus contains a standard I2C-bus compliant interface with two pins
Possibility to wake up NHS3100 on matching I2C-bus slave address
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
22 / 45
8.8.2 General description
Two types of data transfers are possible on the I2C-bus, depending on the state of the
direction bit (R/W):
Data transfer from a master transmitter to a slave receiver
The first byte transmitted by the master is the slave address. Next follows a number of
data bytes. The slave returns an acknowledge bit after each received byte.
Data transfer from a slave transmitter to a master receiver
The master transmits the first byte (the slave address). The slave then returns an
acknowledge bit. The slave then transmits the data bytes to the master. The master
returns an acknowledge bit after all received bytes other than the last byte. At the end
of the last received byte, a not-acknowledge is returned. The master device generates
all of the serial clock pulses and the START and STOP conditions. A transfer is ended
with a STOP condition or with a repeated START condition. As a repeated START
condition is also the beginning of the next serial transfer, the I2C-bus is not released.
The I2C-bus interface is byte oriented and has four operating modes: Master transmitter
mode, Master receiver mode, Slave transmitter mode, and Slave receiver mode.
The I2C-bus interface is completely I2C-bus compliant, supporting the ability to power off
the NHS3100 independent of other devices on the same I2C-bus.
The I2C-bus interface requires a minimum 2 MHz system clock to operate in Normal
mode, and 8 MHz for Fast-mode.
8.8.3 I2C-bus pin description
Table 13. I2C-bus pin description
Pin Type Description
SDA I/O I2C-bus serial data
SCL I/O I2C-bus serial clock
The I2C-bus pins must be configured through the PIO0_4 and PIO0_5 registers for
Standard-mode or Fast-mode. The I2C-bus pins are open-drain outputs and fully
compatible with the I2C-bus specification.
8.9 SPI controller
8.9.1 Features
Compatible with Motorola SPI, 4-wire Texas Instruments Synchronous Serial Interface
(SSI), and National Semiconductor Microwire buses
Synchronous serial communication
Supports master or slave operation
Eight-frame FIFOs for both transmit and receive
4-bit to 16-bit frame
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
23 / 45
8.9.2 General description
The SPI/SSP is a Synchronous Serial Port (SSP) controller capable of operation on an
SPI, 4-wire SSI, or Microwire bus. It can interact with multiple masters and slaves on
the bus. Only a single master and a single slave can communicate on the bus during a
given data transfer. Data transfers are in principle full duplex, with frames from 4 bits to
16 bits of bidirectional data flowing between master and slave. In practice, often only one
of these two data flows carries meaningful data.
8.9.3 Pin description
Table 14. SPI pin description
Pin
name
Type Interface
pin SPI
SSI Microwire Description
SCLK I/O SCLK CLK SK serial clock
SSEL I/O SSEL FS CS frame sync/slave select
MISO I/O MISO DR (M)
DX (S)
SI (M)
SO (S)
master input slave output
MOSI I/O MOSI DX (M)
DR (S)
SO (M)
SI (S)
master output slave input
8.9.3.1 Pin detailed description
Serial clock
SCK/CLK/SK is a clock signal used to synchronize the transfer of data. The master
drives the clock signal and the slave receives it. When SPI/SSP interface is used, the
clock is programmable to be active HIGH or active LOW, otherwise it is always active
HIGH. SCK only switches during a data transfer. At any other time, the SPI/SSP interface
either stays in its inactive state or is not driven (remains in high-impedance state).
Frame sync/slave select
When the SPI/SSP interface is a bus master, it drives this signal to an active state before
the start of serial data. It then releases it to an inactive state after the data has been
sent. The active state can be HIGH or LOW depending upon the selected bus and mode.
When the SPI/SSP interface is a bus slave, this signal qualifies the presence of data from
the master according to the protocol in use.
When there is only one master and slave, the master signals, frame sync, or slave select,
can be connected directly to the corresponding slave input. When there are multiple
slaves, further qualification of frame sync/slave select inputs is normally necessary to
prevent more than one slave from responding to a transfer.
Master Input Slave Output (MISO)
The MISO signal transfers serial data from the slave to the master. When the SPI/SSP
is a slave, it outputs serial data on this signal. When the SPI/SSP is a master, it clocks in
serial data from this signal. It does not drive this signal and leaves it in a high-impedance
state when the SPI/SSP is a slave and not selected by FS/SSEL.
Master Output Slave Input (MOSI)
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
24 / 45
The MOSI signal transfers serial data from the master to the slave. When the SPI/SSP
is a master, it outputs serial data on this signal. When the SPI/SSP is a slave, it clocks in
serial data from this signal.
8.10 RFID/NFC communication unit
8.10.1 Features
ISO/IEC14443A part 1 to part 3 compatible
MIFARE (Ultralight) EV1 compatible
NFC Forum Type 2 compatible
Easy interfacing with standard user memory space READ/WRITE commands
Passive operation possible
8.10.2 General description
The RFID/NFC interface allows communication using 13.56 MHz proximity signaling.
aaa-015354
RFID
ANALOG
INTERFACE
EEPROM
SUBSYSTEM
SRAM
APB
INTERFACE
CMDIN
DATAOUT
SR Register
APB SLAVE SUBSYSTEM irq
APB
RFID DIGITAL SUBSYSTEM
VDD_RFID
EEPROM
INTERFACE
RFID
MAIN
CONTROLLER
RFID
ANALOG
SUBSYSTEM
LA
LB
TP
Figure 11. Block diagram of the RFID/NFC interface
The CMDIN, DATAOUT, Status Register (SR), and SRAM are mapped in the user
memory space of the RFID core. The RFID READ and WRITE commands allow wireless
communication to this shared memory.
Messages can be in Raw mode (user proprietary protocol) or formatted according to NFC
Forum Type 2 NDEF messaging and ISO/IEC 11073.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
25 / 45
8.11 16-bit timer
8.11.1 Features
One 16-bit timer with a programmable 16-bit prescaler.
Timer operation
Four 16-bit match registers that allow:
Continuous operation with optional interrupt generation on match
Stop timer on match with optional interrupt generation
Reset timer on match with optional interrupt generation
Up to two CT16B external outputs corresponding to the match registers with the
following capabilities:
Set LOW on match
Set HIGH on match
Toggle on match
Do nothing on match
Up to two match registers can be configured as Pulse Width Modulation (PWM)
allowing the use of up to two match outputs as single edge controlled PWM outputs
8.11.2 General description
The peripheral clock (PCLK), which is derived from the system clock, clocks the timer.
The timer can optionally generate interrupts or perform other actions at specified timer
values based on four match registers. The peripheral clock is provided by the system
clock.
Each timer also includes one capture input to trap the timer value when an input signal
transitions, optionally generating an interrupt.
In PWM mode, four match registers can be used to provide a single-edge controlled
PWM output on the match output pins. The use of the match registers that are not pinned
out to control the PWM cycle length is recommended.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
26 / 45
8.12 32-bit timer
8.12.1 Features
One 32-bit timer with a programmable 32-bit prescaler.
Timer operation
Four 32-bit match registers that allow:
Continuous operation with optional interrupt generation on match
Stop timer on match with optional interrupt generation
Reset timer on match with optional interrupt generation
Up to two CT32B external outputs corresponding to the match registers with the
following capabilities:
Set LOW on match
Set HIGH on match
Toggle on match
Do nothing on match
Up to two match registers can be configured as PWM allowing the use of up to two
match outputs as single edge controlled PWM outputs
8.12.2 General description
The peripheral clock (PCLK), which is derived from the system clock, clocks the timer.
The timer can optionally generate interrupts or perform other actions at specified timer
values based on four match registers. The peripheral clock is provided by the system
clock.
Each timer also includes one capture input to trap the timer value when an input signal
transitions, optionally generating an interrupt.
In PWM mode, four match registers can be used to provide a single-edge controlled
PWM output on the match output pins. Use of the match registers that are not pinned out
to control the PWM cycle length is recommended.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
27 / 45
8.13 WatchDog Timer (WDT)
If the microcontroller enters an erroneous state, the purpose of the WatchDog Timer
(WDT) is to reset it within a reasonable amount of time.
When enabled, if the user program fails to feed (or reload) the WDT within a
predetermined amount of time, the WDT generates a system reset.
8.13.1 Features
If not periodically reloaded, it internally resets the microcontroller
Debug mode
Enabled by software but requires a hardware reset or a WDT reset/interrupt to be
disabled
If enabled, incorrect/incomplete feed sequence causes reset/interrupt
Flag to indicate WDT reset
Programmable 24-bit timer with internal prescaler
Selectable time period from (TWDCLK × 256 × 4) to (TWDCLK × 224 × 4) in multiples
of TWDCLK × 4
The WDT clock (WDCLK) source is a 2 MHz clock derived from the SFRO, or the
external clock as set by the SYSCLKCTRL register
8.13.2 General description
The WDT consists of a divide by 4 fixed prescaler and a 24-bit counter. The clock is fed
to the timer via a prescaler. The timer decrements when clocked. The minimum value by
which the counter is decremented is 0xFF. Setting a value lower than 0xFF causes 0xFF
to be loaded in the counter. Hence the minimum WDT interval is (TWDCLK × 256 × 4)
and the maximum is (TWDCLK × 224 × 4), in multiples of (TWDCLK × 4).
8.14 System tick timer
8.14.1 Features
Simple 24-bit timer
Uses dedicated exception vector
Clocked internally by the system clock or the system clock divided by two
8.14.2 General description
The SYSTICK timer is a part of the Cortex-M0+. The SYSTICK timer can be used to
generate a fixed periodic interrupt for use by an operating system or other system.
Since the SYSTICK timer is a part of the Cortex-M0+, it facilitates porting of software by
providing a standard timer available on Cortex-M0+ based devices. The SYSTICK timer
can be used for management software.
Refer to the Cortex-M0+ Devices - Generic User Guide (Ref. 2) for details.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
28 / 45
8.15 Real-Time Clock (RTC) timer
8.15.1 Features
The Real-Time Clock (RTC) block contains two counters:
A countdown timer generating a wake-up signal when it expires
A continuous counter that counts seconds since power-up or the last system reset
The countdown timer runs on a low speed clock and runs in an always-on power domain.
The delay, as well as a clock tuning prescaler, can be configured via the APB bus. The
RTC countdown timer generates both the deep power-down wake-up signal and the RTC
interrupt signal (wake-up interrupt 12). The deep power-down wake-up signal is always
generated, while the interrupt can be masked according to the settings in the RTCIMSC
register.
8.15.2 General description
The RTC module consists of two parts:
The RTC core module, implementing the RTC timers themselves. This module runs in
the always-on VDD_ALON domain.
The AMBA APB slave interface. This module allows configuration of the RTC core via
an APB bus. This module runs in the switched power domain.
8.16 Temperature sensor
8.16.1 Features
The temperature sensor block measures the chip temperature and outputs a raw value or
a calibrated value in Kelvin.
8.16.2 General description
The temperature is measured using a high-precision, zoom-ADC. The analog part is able
to measure a highly temperature-dependent X = Vbe / ΔVbe1. It determines the value of
X by first applying a coarse search (successive approximation), and then a sigma-delta
in a limited range. The conversion time depends on the resolution mode as shown in
Table 15.
Table 15. Conversion time for different resolution of TSENS
Resolution (bit) Resolution (°C) Conversion time (ms)
7 ±0.8 4
8 ±0.4 7
9 ±0.2 14
10 ±0.1 26
1Vbe is the base-emitter voltage of a bipolar transistor. Basically, the temperature sensor measures the
voltage drop over a diode formed by the base-emitter junction of a bipolar transistor. It compares the Vbe
at different current levels (from which follows the ΔVbe).
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
29 / 45
Resolution (bit) Resolution (°C) Conversion time (ms)
11 ±0.05 50
12 ±0.025 100
8.17 Serial Wire Debug (SWD)
The debug functions are integrated into the ARM Cortex-M0+. Serial Wire Debug (SWD)
functions are supported. The ARM Cortex-M0+ is configured to support up to four
breakpoints and two watchpoints.
Supports ARM SWD mode
Direct debug access to all memories, registers, and peripherals
No target resources are required for the debugging session
Four breakpoints
Four instruction breakpoints that can also be used to remap instruction addresses for
code patches. Two data comparators that can be used to remap addresses for patches
to literal values.
Two data watchpoints that can also be used as triggers
8.18 On-chip flash memory
The NHS3100 contains a 32 kB flash memory of which 30 kB can be used as program
and data memory.
The flash is organized in 32 sectors of 1 kB. Each sector consists of 16 rows of 16 × 32-
bit words.
8.18.1 Reading from flash
Reading is done via the AHB interface. The memory is mapped on the bus address
space as a contiguous address space. Memory data words are seen on the bus using a
little endian arrangement.
8.18.2 Writing to flash
Writing to flash means copying a word of data over the AHB to the page buffer of the
flash. It does not actually program the data in the memory array. This programming is
done by subsequent erase and program cycles.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
30 / 45
8.18.3 Erasing/programming flash
Erasing and programming are separate operations. Both are possible only on memory
sectors that are unprotected and unlocked. Protect/lock information is stored inside the
memory itself, so the controller is not aware of protection status. Therefore, if a program/
erase operation is performed on a protected or locked sector, it does not flag an error.
Protection
At exit from reset, all sectors are protected against accidental modification. To allow
modification, a sector must be unprotected. It can then be protected again after that the
modification is performed.
Locking
Each flash sector has a lock bit. Lock bits can be set but cannot be cleared. Locked
sectors cannot be erased and reprogramed.
8.19 On-chip SRAM
The NHS3100 contains a total of 8 kB on-chip SRAM memory configured as
256 × 2 × 4 × 32 bit.
8.20 On-chip EEPROM
The NHS3100 contains a 4 kB EEPROM. This EEPROM is organized in 64 rows of
32 × 16-bit words. Of these rows, the last four contain calibration and test data and are
locked. This data is either used by the boot loader after reset, or made accessible to the
application via firmware Application Programming Interface (API).
8.20.1 Reading from EEPROM
Reading is done via the AHB interface. The memory is mapped on the bus address
space, as a contiguous address space. Memory data words are seen on the bus using a
little endian arrangement.
8.20.2 Writing to EEPROM
Erasing and programming is performed, as a single operation, on one or more words
inside a single page.
Previous write operations have transferred the data to be programmed into the memory
page buffer. The page buffer tracks which words were written to (offset within the page
only). Words not written to, retain their previous content.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
31 / 45
9 Limiting values
Table 16. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
VDD supply voltage −0.5 +3.6 V
normal PIO pads (VDD = 0.6 V) −0.5 +3.6 V
high-source PIO pads −0.5 +5.5 V
VIinput voltage
LA/LB pads −0.5 +5.5 V
IDD supply current per supply pin - 100 mA
ISS ground supply current per supply pin - 100 mA
Ilu latch-up current I/O; −0.5VDD < VI < +1.5VDD;
Tj < 125 °C
- 100 mA
Tstg storage temperature −40 +125 °C
Tjjunction temperature - 125 °C
Ptot total power dissipation - 1 W
human body model; all pins −2000 +2000 VVESD electrostatic discharge voltage
charged device model; all pins −500 +500 V
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
32 / 45
10 Static characteristics
Table 17. Static characteristics
Tamb = −40 °C to +85 °C, unless otherwise stated.
Symbol Parameter Conditions Min Typ Max Unit
Supply pins
VDD supply voltage 1.72 3.0 3.60 V
IDD supply current voltage and clock frequency
dependent
[1] - - - µA
IL(off) off-state leakage current - - 50 nA
IDD(pd) power-down mode supply current Deep power-down mode - 3 - µA
Standard GPIO pins
VIH HIGH-level input voltage 0.7VDD - - V
VIL LOW-level input voltage - - 0.3VDD V
Vhys hysteresis voltage 0.4 - - V
Rpd pull-down resistance - 72 - kΩ
Rpu pull-up resistance - 73 - kΩ
HIGH-level VDD = 1.8 V [2] - 2 - mA
HIGH-level VDD = 3.6 V [2] - 8 - mA
LOW-level VDD = 1.8 V [2] - 4 - mA
ISsource current
LOW-level VDD = 3.6 V [2] - 16 - mA
High-drive GPIO pins
HIGH-level VDD = 1.8 V [3] 4 - 6 mA
HIGH-level VDD = 3.6 V [3] 13 - 18 mA
LOW-level VDD = 1.8 V [3] 5.5 - 8 mA
ISsource current
LOW-level VDD = 3.6 V [3] 22 - 32 mA
I2C-bus pins
LOW-level VDD = 1.8 V [4] 2 - 8.5 mAISsource current
LOW-level VDD = 3.6 V [4] 9.5 - 38 mA
Brownout detect
falling VDD - 1.8 - VVtrip(bo) brownout trip voltage
rising VDD - 1.875 - V
Vhys hysteresis voltage - 75 - mV
General
Rpu(int) internal pull-up resistance on pin RESETN - 100 - kΩ
Cext external capacitance on pin RESETN - - 1 nF
[1] See Figure 12
[2] PIO0_0, PIO0_1, PIO0_2, PIO0_6, PIO0_8, PIO0_9
[3] PIO0_3, PIO0_7, PIO0_10, PIO0_11
[4] PIO0_4, PIO0_5
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
33 / 45
VDD (V)
1.5 43.52.5 32
aaa-022790
400
600
200
800
1000
IDD
(µA)
0
(3)
(2)
(1)
(4)
(5)
(6)
Plot of IDD / VDD when ARM running a while - 1 loop in Normal mode, no NFC field present.
(1) System clock = 250 kHz
(2) System clock = 500 kHz
(3) System clock = 1 MHz
(4) System clock = 2 MHz
(5) System clock = 4 MHz
(6) System clock = 8 MHz
Figure 12. Active current consumption
Table 18. Temperature sensor characteristics
Symbol Parameter Conditions Min Typ Max Unit
ICC(pd) power-down mode supply current TSENS disabled - - 1 nA
Istb standby current TSENS enabled - 6 7 µA
ICC(oper) operating supply current TSENS converting - 10 12 µA
Tamb = 0 °C to +40 °C −0.3 - +0.3 °CTacc temperature accuracy
Tamb = −40 °C to +85 °C −0.5 - +0.5 °C
12-bit mode - 0.025 - °CTres temperature resolution
8-bit mode - 0.4 - °C
12-bit mode - 100 - msTconv conversion period
8-bit mode - 7 - ms
Note: The absolute accuracy is valid for the factory calibration of the temperature sensor.
The sensor can be user-calibrated to reach higher accuracy.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
34 / 45
Table 19. Antenna input characteristics
Symbol Parameter Conditions Min Typ Max Unit
Ciinput capacitance [1] - 50 - pF
fiinput frequency - 13.56 - MHz
[1] Tamb = 22 °C, f = 13.56 MHz, RMS voltage between LA and LB is 1.5 V
Table 20. EEPROM characteristics
Symbol Parameter Conditions Min Typ Max Unit
tret(data) data retention time Tamb = 22 °C 10 - - year
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
35 / 45
11 Dynamic characteristics
11.1 I/O pins
Table 21. I/O dynamic characteristics
These characteristics apply to standard port pins and RESETN pin.
Tamb = −40 °C to +85 °C.
Symbol Parameter Conditions Min Typ Max Unit
trrise time pin configured as output 3.0 - 5.0 ns
tffall time pin configured as output 2.5 - 5.0 ns
11.2 I2C-bus
Table 22. I2C-bus dynamic characteristics
See UM10204 - I2C-bus specification and user manual (Ref. 3) for details. Tamb = −40 °C to +85 °C[1]; see the timing
diagram in Figure 13.
Symbol Parameter Conditions Min Typ Max Unit
Standard-mode 0 - 100 kHzfSCL SCL clock frequency
Fast-mode 0 - 400 kHz
Standard-mode [2] [3] [4] - - 300 nstffall time of both SDA and SCL
signals Fast-mode [2] [3] [4] 20 + 0.1 × Cb- 300 ns
Standard-mode 4.7 - - µstLOW LOW period of the SCL clock
Fast-mode 1.3 - - µs
Standard-mode 4.0 - - µstHIGH HIGH period of the SCL clock
Fast-mode 0.6 - - µs
Standard-mode [2] [5] [6] 0 - - µstHD;DAT data hold time
Fast-mode [2] [5] [6] 0 - - µs
Standard-mode [7] [8] 250 - - nstSU;DAT data setup time
Fast-mode [7] [8] 100 - - ns
[1] Parameters are valid over operating temperature range unless otherwise specified.
[2] A device must internally provide a hold time of at least 300 ns for the SDA signal (regarding the VIH(min) of the SCL signal). The hold time is to bridge the
undefined region of the falling edge of SCL.
[3] Cb = total capacitance of one bus line in pF.
[4] The maximum tf for the SDA and SCL bus lines is specified at 300 ns. The maximum fall time for the SDA output stage tf is specified at 250 ns. It allows
series protection resistors to be connected between the SDA and the SCL pins and the SDA/SCL bus lines without exceeding the maximum specified tf.
[5] tHD;DAT is the data hold time that is measured from the falling edge of SCL; applies to data in transmission and the acknowledge.
[6] The maximum tHD;DAT could be 3.45 μs and 0.9 μs for Standard-mode and Fast-mode. However, it must be less than the maximum of tVD;DAT or tVD;ACK
by a transition time (see Ref. 3). Only meet this maximum if the device does not stretch the LOW period (tLOW) of the SCL signal. If the clock stretches the
SCL, the data must be valid by the setup time before it releases the clock.
[7] tSU;DAT is the data setup time that is measured against the rising edge of SCL; applies to data in transmission and the acknowledge.
[8] A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system but it must meet the requirement tSU;DAT = 250 ns. This requirement
is automatically the case if the device does not stretch the LOW period of the SCL signal. If it does, it must output the next data bit to the SDA line
tr(max) + tSU;DAT = 1000 + 250 = 1250 ns before the SCL line is released. This procedure is in accordance with the Standard-mode I2C-bus specification.
Also, the acknowledge timing must meet this setup time.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
36 / 45
002aaf425
tf
70 %
30 %
SDA
tf
70 %
30 %
S
70 %
30 %
70 %
30 %
tHD;DAT
SCL
1 / fSCL
70 %
30 %
70 %
30 %
tVD;DAT
tHIGH
tLOW
tSU;DAT
Figure 13. I2C-bus pins clock timing
11.3 SPI interfaces
Table 23. Dynamic characteristics of SPI pins in SPI mode
Symbol Parameter Conditions Min Typ Max Unit
SPI master
full-duplex mode [1] 50 - - nstcy(clk) clock cycle time
when only transmitting [1] 40 - - ns
2.4 V ≤ VDD < 3.6 V [2] 15 - - ns
2.0 V ≤ VDD < 2.4 V [2] 20 - - ns
tSU;DAT data setup time
1.8 V ≤ VDD < 2.0 V [2] 24 - - ns
tHD;DAT data hold time [2] 0 - - ns
tv(Q) data output valid time [2] - - 10 ns
th(Q) data output hold time [2] 0 - - ns
SPI slave
Tcy(PCLK) PCLK cycle time [3] [4] 0 - - ns
tHD;DAT data hold time [3] [4] 3 × Tcy(PCLK) + 4 - - ns
tv(Q) data output valid time [3] [4] - - 3 × Tcy(PCLK) + 11 ns
th(Q) data output hold time [3] [4] - - 2 × Tcy(PCLK) + 5 ns
[1] tcy(clk) = (SSPCLKDIV × (1 + SCR) × CPSDVSR) / fmain. The clock cycle time derived from the SPI bit rate tcy(clk) is a function of:
The main clock frequency fmain
The SPI peripheral clock divider (SSPCLKDIV)
The SPI SCR parameter (specified in the SSP0CR0 register)
The SPI CPSDVSR parameter (specified in the SPI clock prescale register)
[2] Tamb = −40 °C to +105 °C
[3] tcy(clk) = 12 × Tcy(PCLK)
[4] Tamb = 25 °C for normal voltage supply: VDD = 3.3 V
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
37 / 45
SCK (CPOL = 0)
MOSI
MISO
tcy(clk)
tSU;DAT tHD;DAT
tv(Q)
DATA VALID DATA VALID
th(Q)
SCK (CPOL = 1)
DATA VALID DATA VALID
MOSI
MISO
tSU;DAT tHD;DAT
DATA VALID DATA VALID
th(Q)
DATA VALID DATA VALID
tv(Q)
CPHA = 1
CPHA = 0
aaa-024226
Figure 14. SPI master timing in SPI mode
SCK (CPOL = 0)
MOSI
MISO
tcy(clk)
tv(Q)
DATA VALID DATA VALID
th(Q)
SCK (CPOL = 1)
DATA VALID DATA VALID
MOSI
MISO
tv(Q)
DATA VALID DATA VALID
th(Q)
DATA VALID DATA VALID
CPHA = 1
CPHA = 0
tSU;DAT tHD;DAT
tSU;DAT tHD;DAT
aaa-024227
Figure 15. SPI slave timing in SPI mode
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
38 / 45
12 Package outline
References
Outline
version
European
projection Issue date
IEC JEDEC JEITA
SOT616-3 MO-220
sot616-3_po
16-02-17
16-07-14
Unit(1)
mm
max
nom
min
1 0.05 4.1 2.75 4.1
0.5 2.5
A(1)
Dimensions (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
HVQFN24: plastic thermal enhanced very thin quad flat package; no leads;
24 terminals; body 4 x 4 x 0.85 mm SOT616-3
A1b
0.30
c D(1) DhE(1) Ehe e1e2
2.5
L v
0.1
w y
0.2 0.10.05 0.05
y1
0.32.450.00 3.9 2.45 3.90.18
0.52.75
e
0 2.5 5 mm
scale
AA1
c
detail X
yy1C
L
Eh
Dh
b
7 12
24 19
18
13
6
1
X
D
E
C
B A
terminal 1
index area
terminal 1
index area
AC
C
B
v
w
1/2 e
1/2 e
e1
e
e2
Figure 16. HVQFN24 package outline
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
39 / 45
References
Outline
version
European
projection Issue date
IEC JEDEC
- - -
JEITA
sot1401-1
sot1401-1_po
15-10-05
16-07-26
Unit
mm
max
nom
min
0.29 2.54 2.54
0.15 0.03
A
Dimensions (mm are the original dimensions)
WLCSP25: wafer level chip-scale package, 25 balls; 2.51 x 2.51 x 0.5 mm SOT1401-1
A1A2
0.325
0.275
0.26 2.51 2.51 0.4
b D E e
1.6
e1
1.6
e2v w
0.05
y
0.23 2.48 2.48
0.300
0.23
0.17
0.20
0.54
0.46
0.50
X
detail X
C
y
B
DA
E
54321
A
A
A2
A1
e
e2
ebAC B
Ø v
CØ w
e1
3 mm0
scale
B
C
D
E
ball A1
index area
ball A1
index area
Figure 17. WLCSP25 package outline
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
40 / 45
sot1870-1_ssv
terminal 1
index area
terminal 1
index area
1.012
Dimensions are in mm
0.422
1.058
1.058
1.058
0.512
0.763
0.18
0.382
1
12
11
10
9 8 7
6
5
4
32
1.058
0 2 mm
scale
References
Outline
version
European
projection
IEC JEDEC JEITA
SOT1870-1 - - -
Bumped die with 8 functional bumps; 2.51 mm x 2.51 mm x 0.16 mm SOT1870-1
0.682
0.291
detail X
0.160
± 0.015
0.150
± 0.015
0.010
± 0.002
AB
C
X
2.51 ± 0.03
2.51 ± 0.03
Figure 18. Bumped die package outline
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
41 / 45
13 Abbreviations
Table 24. Abbreviations
Acronym Description
ADC Analog-to-Digital Converter
AHB Advanced High-performance Bus
AMBA Advanced Microcontroller Bus Architecture
APB Advanced Peripheral Bus
API Application Programming Interface
ARM Advanced RISC Machine
BOD BrownOut Detection
CGU Clock Generator Unit
EEPROM Electrically Erasable Programmable Read-Only Memory
GPIO General Purpose Input Output
I2C Inter-Integrated Circuit
LDO Low DropOut
MISO Master Input Slave Output
MOSI Master Output Slave Input
NDEF NFC Data Exchange Format
NFC Near Field Communication
NVIC Nested Vectored Interrupt Controller
PMU Power Management Unit
POR Power-On Reset
PWM Pulse Width Modulation
RFID Radio Frequency Identification
RISC Reduced Instruction Set Computer
RTC Real-Time Clock
SFRO System Free-Running Oscillator
SI Slave Input
SO Slave Output
SPI Serial Peripheral Interface
SR Status Register
SSI Synchronous Serial Interface
SSP Synchronous Serial Port
SWD Serial Wire Debug
TFRO Timer Free-Running Oscillator
WDT WatchDog Timer
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
42 / 45
14 References
1DDI0484C_cortex_m0p_r0p1_trm Cortex-M0+ Devices - Technical Reference Manual
2DUI0662B_cortex_m0p_r0p1_dgug Cortex-M0+ Devices - Generic User Guide
3UM10204 user manual I2C-bus specification and user manual; 2014, NXP
Semiconductors
15 Revision history
Table 25. Revision history
Document ID Release date Data sheet status Change notice Supersedes
NHS3100 v.6 <Tbd> Product data sheet - NHS3100 v.5
Modifications: NFC certification and logo have been added.
Text has been updated throughout the document.
NHS3100 v.5 20161205 Product data sheet - NHS3100 v.4
Modifications Addition of NHS3100W8 package data
NHS3100 v.4 20160905 Product data sheet - NHS3100 v.3
Modifications General update
Static characteristics updated
Drawing revisions
NHS3100 v.3 20160601 Preliminary data sheet - NHS3100 v.2
Modifications General update
NHS3100 v.2 20160531 Objective data sheet - NHS3100 v.1
Modifications Section 7.1 "Pinning" updated
Section 8.4 "Power Management Unit (PMU)" major revision
Section 11.2 "I2C-bus" updated
Section 11.3 "SPI interfaces" added
WLCSP25 package added
Cautions added
Table 15 "Static characteristics" updated
Section 8.7 "Fast General-Purpose parallel I/O" added
NHS3100 v.1 20150811 Objective data sheet - -
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
43 / 45
16 Legal information
16.1 Data sheet status
Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contains data from the objective specification for product
development.
Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
Product [short] data sheet Production This document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term 'short data sheet' is explained in section "Definitions".
[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple
devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
16.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences
of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is
intended for quick reference only and should not be relied upon to contain
detailed and full information. For detailed and full information see the
relevant full data sheet, which is available on request via the local NXP
Semiconductors sales office. In case of any inconsistency or conflict with the
short data sheet, the full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product
is deemed to offer functions and qualities beyond those described in the
Product data sheet.
16.3 Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, NXP Semiconductors does not
give any representations or warranties, expressed or implied, as to the
accuracy or completeness of such information and shall have no liability
for the consequences of use of such information. NXP Semiconductors
takes no responsibility for the content in this document if provided by an
information source outside of NXP Semiconductors. In no event shall NXP
Semiconductors be liable for any indirect, incidental, punitive, special or
consequential damages (including - without limitation - lost profits, lost
savings, business interruption, costs related to the removal or replacement
of any products or rework charges) whether or not such damages are based
on tort (including negligence), warranty, breach of contract or any other
legal theory. Notwithstanding any damages that customer might incur for
any reason whatsoever, NXP Semiconductors’ aggregate and cumulative
liability towards customer for the products described herein shall be limited
in accordance with the Terms and conditions of commercial sale of NXP
Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to
make changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors and its suppliers accept no liability for
inclusion and/or use of NXP Semiconductors products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes
no representation or warranty that such applications will be suitable
for the specified use without further testing or modification. Customers
are responsible for the design and operation of their applications and
products using NXP Semiconductors products, and NXP Semiconductors
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP
Semiconductors product is suitable and fit for the customer’s applications
and products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with
their applications and products. NXP Semiconductors does not accept any
liability related to any default, damage, costs or problem which is based
on any weakness or default in the customer’s applications or products, or
the application or use by customer’s third party customer(s). Customer is
responsible for doing all necessary testing for the customer’s applications
and products using NXP Semiconductors products in order to avoid a
default of the applications and the products or of the application or use by
customer’s third party customer(s). NXP does not accept any liability in this
respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those
given in the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nxp.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or
the grant, conveyance or implication of any license under any copyrights,
patents or other industrial or intellectual property rights.
NXP Semiconductors NHS3100
Temperature logger
NHS3100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Product data sheet Rev. 6.03 — 15 June 2018
44 / 45
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor
tested in accordance with automotive testing or application requirements.
NXP Semiconductors accepts no liability for inclusion and/or use of non-
automotive qualified products in automotive equipment or applications. In
the event that customer uses the product for design-in and use in automotive
applications to automotive specifications and standards, customer (a) shall
use the product without NXP Semiconductors’ warranty of the product for
such automotive applications, use and specifications, and (b) whenever
customer uses the product for automotive applications beyond NXP
Semiconductors’ specifications such use shall be solely at customer’s own
risk, and (c) customer fully indemnifies NXP Semiconductors for any liability,
damages or failed product claims resulting from customer design and use
of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
16.4 Licenses
Purchase of NXP ICs with NFC technology
Purchase of an NXP Semiconductors IC that complies with one of the
Near Field Communication (NFC) standards ISO/IEC 18092 and ISO/
IEC 21481 does not convey an implied license under any patent right
infringed by implementation of any of those standards. Purchase of NXP
Semiconductors IC does not include a license to any NXP patent (or other
IP right) covering combinations of those products with other products,
whether hardware or software.
16.5 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
MIFARE — is a trademark of NXP B.V.
NXP Semiconductors NHS3100
Temperature logger
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© NXP B.V. 2018. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 15 June 2018
Document identifier: NHS3100
Contents
1 General description ............................................ 1
2 Features and benefits .........................................2
2.1 System ...............................................................2
2.2 Memory ..............................................................2
2.3 Digital peripherals .............................................. 2
2.4 Analog peripherals .............................................2
2.5 Communication interfaces ................................. 2
2.6 Clock generation ................................................2
2.7 Power control .....................................................3
2.8 General .............................................................. 3
3 Applications .........................................................3
4 Ordering information .......................................... 3
5 Marking .................................................................3
6 Block diagram ..................................................... 4
7 Pinning information ............................................ 5
7.1 Pinning ...............................................................5
7.1.1 HVQFN24 package ............................................5
7.1.2 WLCSP25 package ........................................... 7
7.1.3 NHS3100W8 gold bump version ....................... 9
8 Functional description ......................................11
8.1 ARM Cortex-M0+ core .....................................11
8.2 Memory map ....................................................11
8.3 System configuration ....................................... 12
8.3.1 Clock generation ..............................................12
8.3.2 Reset ................................................................13
8.4 Power management .........................................14
8.4.1 System power architecture .............................. 14
8.4.2 Power Management Unit (PMU) ......................17
8.5 Nested Vectored Interrupt Controller (NVIC) ....17
8.5.1 Features ...........................................................17
8.5.2 Interrupt sources ..............................................18
8.6 I/O configuration .............................................. 18
8.6.1 PIO0 pin mode ................................................ 19
8.6.2 PIO0 I2C-bus mode .........................................20
8.6.3 PIO0 current source mode .............................. 20
8.7 Fast general-purpose parallel I/O .................... 20
8.7.1 Features ...........................................................21
8.8 I2C-bus controller ............................................ 21
8.8.1 Features ...........................................................21
8.8.2 General description ..........................................22
8.8.3 I2C-bus pin description ....................................22
8.9 SPI controller ................................................... 22
8.9.1 Features ...........................................................22
8.9.2 General description ..........................................23
8.9.3 Pin description ................................................. 23
8.9.3.1 Pin detailed description ................................... 23
8.10 RFID/NFC communication unit ........................ 24
8.10.1 Features ...........................................................24
8.10.2 General description ..........................................24
8.11 16-bit timer .......................................................25
8.11.1 Features ...........................................................25
8.11.2 General description ..........................................25
8.12 32-bit timer .......................................................26
8.12.1 Features ...........................................................26
8.12.2 General description ..........................................26
8.13 WatchDog Timer (WDT) .................................. 27
8.13.1 Features ...........................................................27
8.13.2 General description ..........................................27
8.14 System tick timer ............................................. 27
8.14.1 Features ...........................................................27
8.14.2 General description ..........................................27
8.15 Real-Time Clock (RTC) timer .......................... 28
8.15.1 Features ...........................................................28
8.15.2 General description ..........................................28
8.16 Temperature sensor ........................................ 28
8.16.1 Features ...........................................................28
8.16.2 General description ..........................................28
8.17 Serial Wire Debug (SWD) ............................... 29
8.18 On-chip flash memory ..................................... 29
8.18.1 Reading from flash .......................................... 29
8.18.2 Writing to flash .................................................29
8.18.3 Erasing/programming flash ..............................30
8.19 On-chip SRAM .................................................30
8.20 On-chip EEPROM ............................................30
8.20.1 Reading from EEPROM .................................. 30
8.20.2 Writing to EEPROM .........................................30
9 Limiting values ..................................................31
10 Static characteristics ........................................ 32
11 Dynamic characteristics ...................................35
11.1 I/O pins ............................................................ 35
11.2 I2C-bus ............................................................ 35
11.3 SPI interfaces .................................................. 36
12 Package outline .................................................38
13 Abbreviations .................................................... 41
14 References ......................................................... 42
15 Revision history ................................................ 42
16 Legal information .............................................. 43