ATWINC15x0
ATWINC15x0-MR210xB IEEE® 802.11 b/g/n SmartConnect
IoT Module
Introduction
The ATWINC15x0-MR210xB is a low power consumption 802.11 b/g/n IoT (Internet of Things)
module,specifically optimized for low power IoT applications. The module integrates Power Amplifier (PA),
Low-Noise Amplifier (LNA), Switch, Power Management, and a printed antenna or a micro co-ax (u.FL)
connector for an external antenna resulting in a small form factor (21.7 x 14.7 x 2.1 mm) design. It is
interoperable with various vendors’ 802.11 b/g/n access points. This module provides SPI ports to
interface with a host controller.
The references to the ATWINC15x0-MR210xB module include the module devices listed in the following:
ATWINC1500-MR210PB
ATWINC1500-MR210UB
ATWINC1510-MR210PB
ATWINC1510-MR210UB
Features
IEEE® 802.11 b/g/n 20 MHz (1x1) solution
Single spatial stream in 2.4 GHz ISM band
Integrated Transmit/Receive switch
Integrated PCB antenna or u.FL micro co-ax connector for external antenna
Superior sensitivity and range via advanced PHY signal processing
Advanced equalization and channel estimation
Advanced carrier and timing synchronization
Wi-Fi® Direct (supported till firmware release 19.5.2)
Soft-AP support
Supports IEEE 802.11 WEP, WPA, WPA2 security
Superior MAC throughput via hardware accelerated two-level A-MSDU/A-MPDU frame aggregation
and block acknowledgment
On-chip memory management engine to reduce host load
SPI host interface
Operating temperature range from -40°C to +85°C. RF performance at room temperature of 25oC
with a 2-3 db change at boundary conditions
I/O operating voltage of 2.7V to 3.6V
Built-in 26 MHz crystal
Integrated Flash memory for system software
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 1
Power Save modes
4 µA Power-Down mode typical at 3.3V I/O
380 µA Doze mode with chip settings preserved (used for beacon monitoring)1
On-chip low power sleep oscillator
Fast host wake-up from Doze mode by a pin or SPI transaction
Fast Boot options
On-chip boot ROM (Firmware instant boot)
SPI flash boot
Low-leakage on-chip memory for state variables
Fast AP re-association (150 ms)
On-chip Network stack to offload MCU
Integrated Network IP stack to minimize host CPU requirements
Network features TCP, UDP, DHCP, ARP, HTTP, TLS, and DNS
Hardware accelerators for Wi-Fi and TLS security to improve connection time
Hardware accelerator for IP checksum
Hardware accelerators for OTA security
Small footprint host driver
Wi-Fi Alliance® certifications for Connectivity and Optimizations
ID: WFA61069
Note:  For information on module power modes, refer to Power Consumption.
ATWINC15x0
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 2
Table of Contents
1. Ordering Information and Module Marking................................................................ 5
2. Block Diagram........................................................................................................... 6
3. Pin Description.......................................................................................................... 7
4. Electrical Specifications.............................................................................................9
4.1. Absolute Maximum Ratings..........................................................................................................9
4.2. Recommended Operating Conditions.......................................................................................... 9
5. CPU and Memory Subsystems............................................................................... 10
5.1. Processor................................................................................................................................... 10
5.2. Memory Subsystem....................................................................................................................10
5.3. Non-volatile Memory (eFuse)..................................................................................................... 10
6. WLAN Subsystem................................................................................................... 12
6.1. MAC........................................................................................................................................... 12
6.2. PHY............................................................................................................................................13
6.3. Radio..........................................................................................................................................13
7. External Interfaces...................................................................................................17
7.1. Interfacing with the Host Microcontroller.................................................................................... 17
7.2. SPI Interface...............................................................................................................................18
7.3. UART Interface...........................................................................................................................20
8. Power Consumption................................................................................................ 22
8.1. Description of Device States...................................................................................................... 22
8.2. Current Consumption in Various Device States......................................................................... 22
8.3. Restrictions for Power States..................................................................................................... 23
8.4. Power-up/down Sequence......................................................................................................... 23
8.5. Digital I/O Pin Behavior During Power-up Sequences............................................................... 24
8.6. Module Reset............................................................................................................................. 25
9. Notes On Interfacing to the ATWINC15x0-MR210xB.............................................. 26
9.1. Programmable Pull Up Resistors............................................................................................... 26
10. Schematic Design Information.................................................................................27
10.1. Application Schematic................................................................................................................ 27
11. Module Drawing.......................................................................................................28
11.1. Module Footprint........................................................................................................................ 29
12. Design Considerations............................................................................................ 31
12.1. ATWINC15x0-MR210PB Placement and Routing Guidelines....................................................31
12.2. Printed PCB Antenna Performance of ATWINC15x0-MR210PB............................................... 31
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 3
12.3. ATWINC15x0-MR210UB Placement and Routing Guidelines................................................... 34
12.4. Module Assembly Considerations.............................................................................................. 35
13. Reflow Profile Information....................................................................................... 36
13.1. Storage Condition.......................................................................................................................36
13.2. Solder Paste...............................................................................................................................36
13.3. Stencil Design............................................................................................................................ 36
13.4. Printing Process......................................................................................................................... 36
13.5. Baking Conditions...................................................................................................................... 36
13.6. Soldering and Reflow Condition................................................................................................. 37
14. Regulatory Approval................................................................................................39
14.1. United States..............................................................................................................................39
14.2. Canada.......................................................................................................................................41
14.3. Europe........................................................................................................................................43
14.4. Other Regulatory Information..................................................................................................... 45
15. Reference Documentation and Support.................................................................. 46
15.1. Reference Documents................................................................................................................46
16. Document Revision History..................................................................................... 47
The Microchip Web Site................................................................................................ 51
Customer Change Notification Service..........................................................................51
Customer Support......................................................................................................... 51
Microchip Devices Code Protection Feature................................................................. 51
Legal Notice...................................................................................................................52
Trademarks................................................................................................................... 52
Quality Management System Certified by DNV.............................................................53
Worldwide Sales and Service........................................................................................54
ATWINC15x0
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 4
1. Ordering Information and Module Marking
Following table describes the ordering details for the ATWINC15x0-MR210xB modules.
Table 1-1. Ordering Details
Model Number Ordering
Code
Package
Dimension
No.
of
Pins
Description Regulatory
Certification
ATWINC1500-
MR210PB
ATWINC1500-
MR210PB1952
21.7 x 14.7 x 2.1
mm
28 Certified Module with
ATWINC1500B chip
(4Mb Flash) and PCB
printed antenna
FCC, ISED,
CE
ATWINC1500-
MR210UB
ATWINC1500-
MR210UB1952
21.7 x 14.7 x 2.1
mm
28 Certified Module with
ATWINC1500B chip
(4Mb Flash) and u.FL
connector
FCC, ISED
ATWINC1510-
MR210PB
ATWINC1510-
MR210PB1952
21.7 x 14.7 x 2.1
mm
28 Certified Module with
ATWINC1510B chip
(8Mb Flash) and PCB
printed antenna
FCC, ISED,
CE
ATWINC1510-
MR210UB
ATWINC1510-
MR210UB1952
21.7 x 14.7 x 2.1
mm
28 Certified Module with
ATWINC1510B chip
(8Mb Flash) and u.FL
connector
Planned
Following figure illustrates the ATWINC15x0-MR210xB modules’ marking information.
Figure 1-1. Marking Information
Module Revision Letter
Software Version
ATWINC15x0 - MR 21 0 P
ATWINC1500: 4Mb Flash
ATWINC1510: 8Mb Flash
1: No OTA / with shield
2: OTA with shield
P: PCB Antenna
U: uFL Connector
MR Industrial
Reserved
1 0
ATWINC15x0
Ordering Information and Module Marking
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 5
2. Block Diagram
Figure 2-1. ATWINC15x0-MR210xB Module Block Diagram
BAL UN
RX/TX
26 MHz
GN D
SPI_CFG
SPI
GPIO 4
GPIO 5
GPIO 6
IRQN
Chip_EN
WAKE
RESET
VBAT VDDIO
GPIO 3
crystal
Printed 2.4 GHz Antenna
or
u.FL 2.4 GHz External
Antenna Connector
®
Wi-Fi
SoC
ATWINC15x0
ATWINC15x0
Block Diagram
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 6
3. Pin Description
Figure 3-1. Pin Diagram
VBAT
GPIO_1
CHIP_EN
VDDIO
1
21
22
23
24
25
26
27
28
11
12
13
14
15
16
17
18
10
19
20
GPIO_3
GPIO_4
GPIO_5
GND_3
GND_1
NC
NC
NC
NC
RESET_N
I2C_SDA
I2C_SCL
GPIO_6
SPI_CFG
WAKE
GND_2
IRQN
UART_TXD
SPI_MOSI
SPI_SSN
SPI_MISO
SPI_SCK
UART_RXD
1P3V_TP
2
3
4
5
6
7
8
9
ATWINC15x0-MR210
29
PADDLE
GND
(Bottom)
Table 3-1. ATWINC15x0-MR210xB Pin Description
Pin
#
Name Type Description Programmable
Pull Up Resistor
1 GPIO_6 I/O General purpose I/O. Yes
2 I2C_SCL I/O I2C Slave Clock. Currently used only for development
debug. Leave unconnected.
Yes
3 I2C_SDA I/O I2C Slave Data. Currently used only for development
debug. Leave unconnected.
Yes
4 RESET_N I Active-Low Hard Reset. When this pin is asserted
low, the module will be placed in the reset state.
When this pin is asserted high, the module will be out
of reset and will function normally. Connect to a host
output that defaults low at power up. If the host output
is tri-stated, add a 1MΩ pull down resistor to ensure a
low level at power-up.
No
5 NC - No connect.
ATWINC15x0
Pin Description
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 7
Pin
#
Name Type Description Programmable
Pull Up Resistor
6 NC - No connect.
7 NC - No connect.
8 NC - No connect.
9 GND_1 - GND.
10 SPI_CFG I Tie to VDDIO through a 1MΩ resistor to enable the
SPI interface.
No
11 WAKE I Host Wake control. Can be used to wake-up the
module from Doze mode. Connect to a host GPIO.
Yes
12 GND_2 - GND.
13 IRQN O ATWINC15x0-MR210xB Device Interrupt output.
Connect to host interrupt input pin.
Yes
14 UART_TXD O UART Transmit Output from ATWINC15x0-MR210xB
Added debug.
Yes
15 SPI_RXD I SPI MOSI (Master Out, Slave In) pin. Yes
16 SPI_SSN I SPI Slave Select. Active-low. Yes
17 SPI_TXD O SPI MISO (Master In, Slave Out) pin. Yes
18 SPI_SCK I SPI Clock. Yes
19 UART_RXD I UART Receive input to ATWINC15x0-MR210xB.
Added debug.
Yes
20 VBATT - Battery power supply.
21 GPIO_1/RTC I General Purpose I/O / RTC. Yes
22 CHIP_EN I Module enable. High level enables the module; low
level places module in Power-Down mode. Connect
to a host output that defaults low at power-up. If the
host output is tri-stated, add a 1MΩ pull down resistor
to ensure a low level at power-up.
No
23 VDDIO - I/O Power Supply. Must match host I/O voltage.
24 1P3V_TP - 1.3V VDD Core Test Point. Decouple with 10µF, and
0.01µF to GND.
25 GPIO_3 I/O General purpose I/O.
26 GPIO_4 I/O General purpose I/O. Yes
27 GPIO_5 I/O General purpose I/O. Yes
28 GND_3 - GND.
29 PADDLE GND - GND.
ATWINC15x0
Pin Description
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 8
4. Electrical Specifications
4.1 Absolute Maximum Ratings
Absolute maximum ratings for the ATWINC15x0-MR210xB modules are listed below.
Table 4-1. Conditions
Symbol Description Min. Max. Unit
VBATT Input supply voltage -0.3 5.0 V
VDDIO I/O voltage -0.3 4.2 V
Operating Temperature -40 +85 oC
CAUTION
Stresses listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. This is a stress rating only. The functional operation of the device at those or any other
conditions above those indicated in the operation listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods may affect the device reliability.
4.2 Recommended Operating Conditions
Table 4-2. Recommended Operating Conditions
Symbol Min. Typ. Max. Unit
VBATT 3.0 3.3 4.2 V
VDDIO 2.7 3.3 3.6 V
Note:  1. Test Conditions: -40oC - +85oC
ATWINC15x0
Electrical Specifications
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 9
5. CPU and Memory Subsystems
5.1 Processor
The ATWINC15x0-MR210xB modules have a Cortus APS3 32-bit processor. This processor performs
many of the MAC functions, including but not limited to the association, authentication, power
management, security key management, and MSDU aggregation/de-aggregation. In addition, the
processor provides flexibility for various modes of operation, such as STA and AP modes.
5.2 Memory Subsystem
The APS3 core uses a 128KB instruction/boot ROM along with a 160KB instruction RAM and a 64KB
data RAM. The ATWINC15x0-MR210xB modules come populated with either 4Mb or 8Mb of Flash
memory depending on the module model that is ordered. This memory can be used for system software.
See Table 1-1 for more information. In addition, the device uses a 128KB shared RAM, accessible by the
processor and MAC, which allows the APS3 core to perform various data management tasks on the TX
and RX data packets.
5.3 Non-volatile Memory (eFuse)
The ATWINC15x0-MR210xB modules have 768 bits of non-volatile eFuse memory that can be read by
the CPU after device reset. This non-volatile one-time-programmable (OTP) memory can be used to store
customer-specific parameters, such as MAC address; various calibration information, such as TX power,
crystal frequency offset, etc.; and other software-specific configuration parameters. The eFuse is
partitioned into six 128-bit banks. Each bank has the same bitmap (see following figure). The purpose of
the first 80 bits in each bank is fixed, and the remaining 48 bits are general-purpose software dependent
bits, or reserved for future use. Since each bank can be programmed independently, this allows for
several updates of the device parameters following the initial programming; for example, if the MAC
address has to be changed, Bank 1 has to be programmed with the new MAC address along with the
values of TX gain correction and frequency offset if they are used and programmed in Bank 0. The
contents of Bank 0 have to be invalidated in this case by programming the invalid bit in the Bank 0. This
will allow the firmware to use the MAC address. By default, all the ATWINC15x0-MR210xB modules are
programmed with the MAC address and the frequency offset bits of Bank 0.
ATWINC15x0
CPU and Memory Subsystems
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 10
Figure 5-1. eFuse Bitmap
Bank 0
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
F MAC ADDR
Used
Invalid
Version
Reserved
MAC ADDR
Used
FO
Flags
G
31 1 4 1
Used
TX
Gain
Correc
tion
Used
Freq.
Offset
1 7
48
8816
1 15
128 Bits
ATWINC15x0
CPU and Memory Subsystems
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 11
6. WLAN Subsystem
The WLAN subsystem is composed of the Media Access Controller (MAC) and the Physical Layer (PHY).
The following two subsections describe the MAC and PHY in detail.
6.1 MAC
6.1.1 Description
The ATWINC15x0-MR210xB MAC is designed to operate at low power while providing high data
throughput. The IEEE 802.11 MAC functions are implemented with a combination of dedicated datapath
engines, hardwired control logic, and a low-power, high-efficiency microprocessor. The combination of
dedicated logic with a programmable processor provides optimal power efficiency and real-time response
while providing the flexibility to accommodate evolving standards and future feature enhancements.
Dedicated datapath engines are used to implement datapath functions with heavy computational
requirements. For example, an FCS engine checks the CRC of the transmitting and receiving packets,
and a cipher engine performs all the required encryption and decryption operations for the WEP, WPA-
TKIP, and WPA2 CCMP-AES.
Control functions which have real-time requirements are implemented using hardwired control logic
modules. These logic modules offer real-time response while maintaining configurability via the
processor. Examples of hardwired control logic modules are the channel access control module
(implements EDCA/HCCA, Beacon TX control, interframe spacing, etc.), protocol timer module
(responsible for the Network Access Vector, back-off timing, timing synchronization function, and slot
management), MPDU handling module, aggregation/de-aggregation module, block ACK controller
(implements the protocol requirements for burst block communication), and TX/RX control FSMs
(coordinate data movement between PHY-MAC interface, cipher engine, and the DMA interface to the
TX/RX FIFOs).
The MAC functions implemented solely in software on the microprocessor have the following
characteristics:
Functions with high memory requirements or complex data structures. Examples are association
table management and power save queuing.
Functions with low computational load or without critical real-time requirements. Examples are
authentication and association.
Functions which need flexibility and upgradeability. Examples are beacon frame processing and
QoS scheduling.
6.1.2 Features
The ATWINC15x0-MR210xB IEEE802.11 MAC supports the following functions:
IEEE 802.11b/g/n
IEEE 802.11e WMM QoS EDCA/PCF multiple access categories traffic scheduling
Advanced IEEE 802.11n features:
Transmission and reception of aggregated MPDUs (A-MPDU)
Transmission and reception of aggregated MSDUs (A-MSDU)
Immediate Block Acknowledgment
Reduced Interframe Spacing (RIFS)
ATWINC15x0
WLAN Subsystem
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 12
Support for IEEE802.11i and WFA security with key management:
WEP 64/128
WPA-TKIP
128-bit WPA2 CCMP (AES)
Advanced power management:
Standard 802.11 Power Save Mode
RTS-CTS and CTS-self support
Supports either STA or AP mode in the infrastructure basic service set mode
6.2 PHY
6.2.1 Description
The ATWINC1500B WLAN PHY is designed to achieve reliable and power-efficient physical layer
communication specified by IEEE 802.11 b/g/n in single stream mode with 20MHz bandwidth. Advanced
algorithms have been employed to achieve maximum throughput in a real world communication
environment with impairments and interference. The PHY implements all the required functions that
include FFT, filtering, FEC (Viterbi decoder), frequency, timing acquisition and tracking, channel
estimation and equalization, carrier sensing, clear channel assessment, and automatic gain control.
6.2.2 Features
The ATWINC1500B IEEE802.11 PHY supports the following functions:
Single antenna 1x1 stream in 20MHz channels
Supports IEEE 802.11b DSSS-CCK modulation: 1, 2, 5.5, 11Mbps
Supports IEEE 802.11g OFDM modulation: 6, 9, 12,18, 24, 36, 48, 54Mbps
Supports IEEE 802.11n HT modulations MCS0-7, 20MHz, 800 and 400ns guard interval: 6.5, 7.2,
13.0, 14.4, 19.5, 21.7, 26.0, 28.9, 39.0, 43.3, 52.0, 57.8, 58.5, 65.0, 72.2Mbps
IEEE 802.11n mixed mode operation
Per packet TX power control
Advanced channel estimation/equalization, automatic gain control, CCA, carrier/symbol recovery,
and frame detection
6.3 Radio
This section presents information describing the properties and characteristics of the ATWINC15x0-
MR210xB and Wi-Fi radio transmit and receive performance capabilities of the device.
The performance measurements are taken at the RF pin assuming 50Ω impedance; the RF performance
is guaranteed for room temperature of 25oC with a derating of 2-3dB at boundary conditions.
Measurements were taken under typical conditions: VBATT=3.3V; VDDIO=3.3V; temperature: +25ºC
Table 6-1. Features and Properties
Feature Description
Part Number ATWINC15x0-MR210xB
WLAN Standard IEEE 802.11 b/g/n, Wi-Fi compliant
ATWINC15x0
WLAN Subsystem
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 13
Feature Description
Host Interface SPI
Dimension 21.7 x 14.7 x 2.1 mm
Frequency Range 2.412GHz ~ 2.472GHz (2.4GHz ISM Band)
Number of Channels 11 for North America, and 13 for Europe
Modulation 802.11b: DQPSK, DBPSK, CCK
802.11g/n: OFDM /64-QAM,16-QAM, QPSK, BPSK
Data Rate 802.11b: 1, 2, 5.5, 11Mbps
802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps
Data Rate
(20MHz, normal GI, 800ns)
802.11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65Mbps
Data Rate
(20MHz, short GI, 400ns)
802.11n: 7.2, 14.4, 21.7, 28.9, 43.3, 57.8,
65,72.2Mbps
Operating temperature -40 to +85oC
Storage temperature -40 to +125 oC
Humidity Operating Humidity 10% to 95% Non-Condensing
Storage Humidity 5% to 95% Non-Condensing
6.3.1 Receiver Performance
Table 6-2. Receiver Performance
Parameter Description Minimum Typical Maximum Unit
Frequency 2,412 2,472 MHz
Sensitivity
802.11b
1Mbps DSS -95
dBm
2Mbps DSS -90
5.5Mbps DSS -92
11Mbps DSS -86
Sensitivity
802.11g
6Mbps OFDM -90
9Mbps OFDM -89
12Mbps OFDM -88
18Mbps OFDM -85
24Mbps OFDM -83
36Mbps OFDM -80
48Mbps OFDM -76
54Mbps OFDM -74
ATWINC15x0
WLAN Subsystem
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 14
Parameter Description Minimum Typical Maximum Unit
Sensitivity
802.11n
(BW=20MHz)
MCS 0 -89
MCS 1 -87
MCS 2 -85
MCS 3 -82
MCS 4 -77
MCS 5 -74
MCS 6 -72
MCS 7 -70.5
Maximum Receive
Signal Level
1-11Mbps DSS 0
6-54Mbps OFDM 0
MCS 0 – 7 0
Adjacent Channel
Rejection
1Mbps DSS (30MHz offset) 50
dB
11Mbps DSS (25MHz offset) 43
6Mbps OFDM (25MHz offset) 40
54Mbps OFDM (25MHz offset) 25
MCS 0 – 20MHz BW (25MHz offset) 40
MCS 7 – 20MHz BW (25MHz offset) 20
Cellular Blocker
Immunity
776-794MHz CDMA -14
dBm
824-849MHz GSM -10
880-915MHz GSM -10
1710-1785MHz GSM -15
1850-1910MHz GSM -15
1850-1910MHz WCDMA -24
1920-1980MHz WCDMA -24
6.3.2 Transmitter Performance
Table 6-3. Transmitter Performance
Parameter Description Minimum Typical Maximum Unit
Frequency 2,412 2,472 MHz
Output Power1-2
ON_Transmit
802.11b 1Mbps 17.5
dBm
802.11b 11Mbps 18.5
802.11g 6Mbps 17.5
802.11g 54Mbps 16
ATWINC15x0
WLAN Subsystem
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 15
Parameter Description Minimum Typical Maximum Unit
802.11n MCS 0 17.0
802.11n MCS 7 14.5
TX Power Accuracy ±1.5 2 dB
Carrier Suppression 30.0 dBc
Harmonic Output Power
2nd -41
dBm/MHz
3rd -41
Note: 
1. Measured at 802.11 spec compliant EVM/Spectral Mask.
2. Measured after RF matching network.
3. Operating temperature range is -40°C to +85°C. RF performance guaranteed at room temperature
of 25°C with a 2-3dB change at boundary conditions.
4. With respect to TX power, different (higher/lower) RF output power settings may be used for
specific antennas and/or enclosures, in which case recertification may be required.
5. The availability of some specific channels and/or operational frequency bands are country
dependent and should be programmed at the Host product factory to match the intended
destination. Regulatory bodies prohibit exposing the settings to the end user. This requirement
needs to be taken care of via Host implementation.
ATWINC15x0
WLAN Subsystem
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 16
7. External Interfaces
7.1 Interfacing with the Host Microcontroller
This section describes interfacing the ATWINC15x0-MR210xB module with the host microcontroller. The
interface is comprised of a slave SPI and additional control signals, as shown in the following figure. For
more information on SPI interface specification and timing, refer to the SPI Interface. Additional control
signals are connected to the GPIO/IRQ interface of the microcontroller.
Figure 7-1. Interfacing with Host Microcontroller
Host
Microcontroller
CHIP_EN
RESET
WAKE
IRQN
SPI
Wi-Fi Controller
Module
Table 7-1. Host Microcontroller Interface Pins
Pin Number Function
4 RESET_N
11 WAKE
13 IRQ_N
22 CHIP_EN
16 SPI_SSN
15 SPI_MOSI
17 SPI_MISO
18 SPI_SCK
Related Links
SPI Interface
ATWINC15x0
External Interfaces
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 17
7.2 SPI Interface
7.2.1 Overview
The ATWINC15x0-MR210xB has a Serial Peripheral Interface (SPI) that operates as an SPI slave. The
SPI interface can be used for control and for serial I/O of 802.11 data. The SPI pins are mapped as
shown in the following table. The SPI is a full-duplex slave-synchronous serial interface that is available
immediately following reset when pin 10 (SPI_CFG) is tied to VDDIO.
Table 7-2. SPI Interface Pin Mapping
Pin # SPI function
10 CFG: Must be tied to VDDIO
16 SSN: Active-Low Slave Select
15 MOSI(RXD): Serial Data Receive
18 SCK: Serial Clock
17 MISO(TXD): Serial Data Transmit
When the SPI is not selected, that is, when SSN is high, the SPI interface will not interfere with data
transfers between the serial-master and other serial-slave devices. When the serial slave is not selected,
its transmitted data output is buffered, resulting in a high impedance drive onto the MISO line.
The SPI interface responds to a protocol that allows an external host to read or write any register in the
chip as well as initiate DMA transfers.
The SPI SSN, MOSI, MISO, and SCK pins of the ATWINC15x0-MR210xB have internal programmable
pull-up resistors. These resistors should be programmed to be disabled; otherwise, if any of the SPI pins
are driven to a low level while the ATWINC15x0-MR210xB is in the low power sleep state, the current will
flow from the VDDIO supply through the pull-up resistors, increasing the current consumption of the
module.
Related Links
Programmable Pull Up Resistors
7.2.2 SPI Timing
The SPI Slave interface supports four standard modes as determined by the Clock Polarity (CPOL) and
Clock Phase (CPHA) settings. These modes are illustrated in the following table and figure.
Table 7-3. SPI Slave Modes
Mode CPOL CPHA
0 0 0
1 0 1
2 1 0
3 1 1
The red lines in the following figure correspond to Clock Phase = 0 and the blue lines correspond to Clock
Phase = 1.
ATWINC15x0
External Interfaces
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 18
Figure 7-2. SPI Slave Clock Polarity and Clock Phase Timing
z
z z
z
SCK
CPOL = 0
CPOL = 1
SSN
RXD/TXD
(MOSI/MISO)
CPHA = 0
CPHA = 1
2 3 4 5 6 7 8
1 2 3 4 5 6 7
1
8
The SPI timing is provided in the following figure and table.
Figure 7-3. SPI Timing Diagram (SPI Mode CPOL=0, CPHA=0)
tLH
SCK
TXD
RXD
tWH
tHL
tWL
tODLY
tISU tIHD
fSCK
SSN
tSUSSN tHDSSN
Table 7-4. SPI Slave Timing Parameters1
Parameter Symbol Min. Max. Units
Clock Input Frequency2fSCK 48 MHz
Clock Low Pulse Width tWL 4
ns
Clock High Pulse Width tWH 5
Clock Rise Time tLH 0 7
Clock Fall Time tHL 0 7
ATWINC15x0
External Interfaces
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 19
Parameter Symbol Min. Max. Units
TXD Output Delay3tODLY 4 9 from SCK fall
12.5 from SCK
rise
RXD Input Setup Time tISU 1
RXD Input Hold Time tIHD 5
SSN Input Setup Time tSUSSN 3
SSN Input Hold Time tHDSSN 5.5
Note: 
1. Timing is applicable to all SPI modes
2. Maximum clock frequency specified is limited by the SPI Slave interface internal design, actual
maximum clock frequency can be lower and depends on the specific PCB layout
3. Timing based on 15pF output loading
7.3 UART Interface
The ATWINC15x0-MR210xB supports the Universal Asynchronous Receiver/Transmitter (UART)
interface. This interface should be used for debug purposes only. The UART is available on pins 14 and
19. The UART is compatible with the RS-232 standard, and the ATWINC15x0-MR210xB operates as
Data Terminal Equipment (DTE). It has a two-pin RXD/TXD interface.
The default configuration for accessing the UART interface of ATWINC15x0-MR210xB is mentioned
below:
Baud rate: 115200
Data: 8 bit
Parity: None
Stop bit: 1 bit
Flow control: None
It also has RX and TX FIFOs, which ensure reliable high-speed reception and low software overhead
transmission. FIFO size is 4 x 8 for both RX and TX direction. The UART also has status registers
showing the number of received characters available in the FIFO and various error conditions, as well the
ability to generate interrupts based on these status bits.
An example of the UART receiving or transmitting a single packet is shown in the following figure. This
example shows 7-bit data (0x45), odd parity, and two stop bits.
Important:  UART2 supports RTS and CTS flow control. The UART RTS and UART CTS
MUST be connected to the host MCU UART and enabled for the UART interface to be
functional.
ATWINC15x0
External Interfaces
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 20
Figure 7-4. Example of UART RX of TX Packet
ATWINC15x0
External Interfaces
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 21
8. Power Consumption
8.1 Description of Device States
The ATWINC15x0-MR210xB has several device states:
ON_Transmit – Device is actively transmitting an 802.11 signal. Highest output power and nominal
current consumption.
ON_Receive – Device is actively receiving an 802.11 signal. Lowest sensitivity and nominal current
consumption.
ON_Doze – Device is ON but is neither transmitting nor receiving
Power_Down – Device core supply off (Leakage)
IDLE connect – Device is connected with 1 DTIM beacon interval
The following pins are used to switch between the ON and Power_Down states:
CHIP_EN – Device pin (pin #22) used to enable DC/DC Converter
VDDIO – I/O supply voltage from external supply
In the ON states, VDDIO is on and CHIP_EN is high (at VDDIO voltage level). To switch between
the ON states and Power_Down state CHIP_EN has to change between high and low (GND)
voltage. When VDDIO is off and CHIP_EN is low, the chip is powered off with no leakage (also see
Restrictions for Power States).
8.2 Current Consumption in Various Device States
Table 8-1. Current Consumption
Device State Code Rate Output
power, dBm
Current Consumption 1
IVBATT IVDDIO
ON_Transmit
802.11b 1Mbps 17.5 268mA 22mA
802.11b 11Mbps 18.5 264mA 22mA
802.11g 6Mbps 17.5 269mA 22mA
802.11g 54Mbps 16.0 266mA 22mA
802.11n MCS 0 17.0 268mA 22mA
802.11n MCS 7 14.5 265mA 22mA
ON_Receive
802.11b 1Mbps N/A 61mA 22mA
802.11b 11Mbps N/A 61mA 22mA
802.11g 6Mbps N/A 61mA 22mA
802.11g 54Mbps N/A 61mA 22mA
802.11n MCS 0 N/A 61mA 22mA
802.11n MCS 7 N/A 61mA 22mA
ATWINC15x0
Power Consumption
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 22
Device State Code Rate Output
power, dBm
Current Consumption 1
IVBATT IVDDIO
ON_Doze N/A N/A 380µA <10µA
Power_Down N/A N/A <0.5µA <3.5µA
Note: 
1. Measured conditions: VBATT @ 3.3V, VDDIO@ 3.3V, temp. 25°C.
8.3 Restrictions for Power States
When no power is supplied to the device, for example, the DC/DC Converter output and VDDIO are both
off (at ground potential), a voltage cannot be applied to the device pins because each pin contains an
ESD diode from the pin to supply. This diode will turn on when a voltage higher than one diode drop is
supplied to the pin.
If a voltage must be applied to the signal pads while the chip is in a low-power state, the VDDIO supply
must be on, so the SLEEP or Power_Down state must be used.
Similarly, to prevent the pin-to-ground diode from turning on, do not apply a voltage that is more than one
diode drop below ground to any pin.
8.4 Power-up/down Sequence
The power-up/down sequence for ATWINC15x0-MR210xB is shown in the Following Figure. The timing
parameters are provided in following the table.
Figure 8-1. Power Up/Down Sequence
VBATT
VDDIO
CHIP_EN
RESETN
tA
tB
tC
XO Clock
tB'
tA'
tC'
Table 8-2. Power-up/down Sequence Timing
Parameter Min. Max. Units Description Notes
tA
0 ms VBATT rise to VDDIO
rise
VBATT and VDDIO can rise
simultaneously or can be tied
ATWINC15x0
Power Consumption
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 23
Parameter Min. Max. Units Description Notes
together. VDDIO must not rise
before VBATT.
tB
0 ms VDDIO rise to CHIP_EN
rise
CHIP_EN must not rise before
VDDIO. CHIP_EN must be driven
high or low, not left floating.
tC
5 ms CHIP_EN rise to
RESETN rise
This delay is needed because the
XO clock must stabilize before
RESETN removal. RESETN must
be driven high or low, not left
floating.
tA
0 ms VDDIO fall to VBATT fall VBATT and VDDIO can fall
simultaneously or can be tied
together. VBATT must not fall
before VDDIO.
tB’
0 ms CHIP_EN fall to VDDIO
fall
VDDIO must not fall before
CHIP_EN. CHIP_EN and RESETN
can fall simultaneously.
tC’
0 ms RESETN fall to VDDIO
fall
VDDIO must not fall before
RESETN. RESETN and CHIP_EN
can fall simultaneously.
8.5 Digital I/O Pin Behavior During Power-up Sequences
The following table represents digital I/O Pin states corresponding to device power modes.
Table 8-3. Digital I/O Pin Behavior in Different Device States
Device state VDDIO CHIP_EN RESETN Output
driver
Input
driver
Pull up/down
resistor (96kΩ)
Power-Down:
core supply off
High Low Low Disabled (Hi-Z) Disabled Disabled
Power-on Reset:
core supply on, hard reset
on
High High Low Disabled (Hi-Z) Disabled Enabled
Power-On Default:
core supply on, the device
is out of reset but not
programmed yet
High High High Disabled (Hi-Z) Enabled Enabled
On Sleep/
On Transmit/
On Receive:
core supply on, device
programmed by firmware
High High High Programmed by
firmware for
each pin:
Enabled or
Disabled
Opposite
of Output
Driver
state
Programmed by
firmware for
each pin:
Enabled or
Disabled
ATWINC15x0
Power Consumption
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 24
8.6 Module Reset
If a module reset is performed, the RESETN pin must be pulsed low for a minimum of 1µ second.
ATWINC15x0
Power Consumption
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 25
9. Notes On Interfacing to the ATWINC15x0-MR210xB
9.1 Programmable Pull Up Resistors
The ATWINC15x0-MR210xB provides programmable pull up resistors on various pins. The purpose of
these resistors is to keep any unused input pins from floating, which can cause excess current to flow
through the input buffer from the VDDIO supply. Any unused module pin on the ATWINC15x0-MR210xB
should leave these pull up resistors enabled so the pin will not float. The default state at power-up is for
the pull up resistor to be enabled. However, any pin that is used should have the pull up resistor disabled.
The reason for this is that if any pins are driven to a low level while the ATWINC15x0-MR210xB is in the
low power sleep state, current will flow from the VDDIO supply through the pull up resistors, increasing
the current consumption of the module. Since the value of the pull up resistor is approximately 100KΩ,
the current through any pull up resistor that is being driven low will be VDDIO/100K. For VDDIO = 3.3V,
the current through each pull up resistor that is driven low would be approximately 3.3V/100K = 33µA.
Pins which are used and have had the programmable pull up resistor disabled should always be actively
driven to either a high or low level and not be allowed to float.
ATWINC15x0
Notes On Interfacing to the ATWINC15x0-MR210xB
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 26
10. Schematic Design Information
This section provides schematic information for reference. Application schematics for SPI are provided in
the following figure. Module design information such as module schematics can be obtained under an
NDA from Microchip. These schematics are applicable to the ATWINC1500-MR210PB, ATWINC1510-
MR210PB and the ATWINC1500-MR210UB modules.
10.1 Application Schematic
Figure 10-1. SPI Application Schematic
Resistors R2-R1 are recommended
As placeholders in case filtering
of noisy signals is required. They
also allow disconnecting of module
For debug purposes.
Note:  Add 10uF and 0.01uF decoupling capacitors between the pin 24 (1P3V_TP) and GND.
ATWINC15x0
Schematic Design Information
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 27
11. Module Drawing
This section provides information about the module package outline drawings.
Figure 11-1. Module Drawing - ATWINC15x0-MR210PB (unit = mm)
MODULE TOP VIEW
Metal
Shield
Metal
Shield
PCB
MODULE SIDE VIEW MODULE BOTTOM VIEW
NOTE: THIS PAD MUST
BE SOLDERED TO GND.
NOT TO SCA LE
ATWINC15x0
Module Drawing
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 28
Figure 11-2. Module Drawings – ATWINC15x0-MR210UB (unit = mm)
MODULE TOP VIEW
Metal
Shield
Metal
Shield
PCB
MODULE SIDE VIEW MODULE BOTTOM VIEW
NOTE: THIS PAD MUST
BE SOLDERED TO GND.
NOT TO SCA LE Rev. 2
11.1 Module Footprint
This section provides the outline drawing for the recommended footprint for the ATWINC15x0-MR210xB
module. It is imperative that the center Ground Pad is provided, with an array of vias to provide for a good
ground and thermal transfer for the ATWINC15x0-MR210xB module.
This footprint is applicable to the ATWINC15x0-MR210xB module devices.
ATWINC15x0
Module Drawing
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 29
Figure 11-3. Module Solder Pad Footprint (unit = mm).
NOTE: THIS PAD MUST BE
TIED TO GND.
1.016 Pitch
14.73
1.9
0.8
1.016 Pitch
4.064
2.67
2.67
6.00
1.016 Pitch
3.70
3.70
1.016 Pitch
1.9 3.048
3.68
21.72 2.032
4.42
SOLDER PAD FOOTPRINT
Drawing not to scale.
Untoleranced dimensions.
Units=mm.
ATWINC15x0
Module Drawing
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 30
12. Design Considerations
This section provides the guidelines on placement and routing to achieve the best performance.
12.1 ATWINC15x0-MR210PB Placement and Routing Guidelines
The module must be placed on the main board – the printed antenna area must overlap with the
carrier board. The portion of the module containing the antenna should not go outside the edge of
the main board. The antenna is designed to work properly when it is sitting directly on top of a
1.5mm thick printed circuit board.
If the module is placed at the edge of the main board, a minimum 22mm by 5mm area directly
under the antenna must be clear of all metal on all layers of the board. “In-land” placement is
acceptable; however deepness of keep-out area must grove to: module edge to main board edge
plus 5mm. DO NOT PLACE THE MODULE IN THE MIDDLE OF THE MAIN BOARD OR FAR
AWAY FROM THE MAIN BOARD EDGE.
Keep away from the antenna, as far as possible, large metal objects to avoid electromagnetic field
blocking
Do not enclose the antenna within a metal shield
Keep any components which may radiate noise or signals within the 2.4GHz-2.5GHz frequency
band as far away from the antenna as possible, or better yet, shield those components. Any noise
radiated from the main board in this frequency band will degrade the sensitivity of the module.
Figure 12-1. ATWINC15x0-MR210PB Placement Reference
Best Case
Worst Case
System Ground Plane
(a)
(b)
Keep out area.
Microchip
Microchip
12.2 Printed PCB Antenna Performance of ATWINC15x0-MR210PB
The printed PCB antenna on the ATWINC15x0-MR210PB is a meandered Inverted F Antenna (IFA). The
antenna is fed via matching network, which is matched for the module installed on a 1.5mm thick main
ATWINC15x0
Design Considerations
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 31
board. Main board thickness deviation by ±1mm changes RX/TX performance by ±1dB maximum,
referring to RX/TX performance with a default antenna matching network and installed on 1.5mm thick
main board.
Measured peak antenna gain is -0.3dBi.
Antenna Radiation Pattern
Following figures illustrate the Antenna Radiation Patterns.
Figure 12-2. Antenna Radiation Pattern when Phi = 0 degree
ATWINC15x0
Design Considerations
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 32
Figure 12-3. Antenna Radiation Pattern when Phi = 90 degree
ATWINC15x0
Design Considerations
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 33
Figure 12-4. Antenna Radiation Pattern when Theta = 90 degree
12.3 ATWINC15x0-MR210UB Placement and Routing Guidelines
The ATWINC15x0-MR210UB module has an Ultra Small Miniature RF Connector (u.FL) for the external
antenna.
The choice of antenna is limited to the antenna types for which the module was tested and approved. For
a list of tested and approved antennas that may be used with the module, refer to the respective country
in Regulatory Approval.
An approved and tested antenna type is shown in the following table.
Table 12-1. Tested External Antenna Type
Antenna Type Gain
Whip Antenna 2.2dBi
ATWINC15x0
Design Considerations
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 34
12.3.1 Recommended External Antenna for ATWINC15x0-MR210UB
Whip Antenna (Part number: RN-SMA-4) along with a 10cm length RF cable assembly (u.FL to SMA) has
been used for the certification of ATWINC15x0-MR210UB. It is recommended to use the same or similar
external antenna in design.
12.4 Module Assembly Considerations
The ATWINC15x0-MR210xB modules are assembled with an EMI Shield to ensure compliance with EMI
emission and immunity rules. The EMI shield is made of a tin-plated steel (SPTE) and is not hermetically
sealed. Solutions like IPA and similar solvents can be used to clean the ATWINC15x0-MR210xB module.
However, cleaning solutions that contain acid should never be used on the module.
The ATWINC15x0-MR210xB modules are manufactured without any conformal coating applied. It is the
customer’s responsibility if a conformal coating is specified and/or applied to the ATWINC15x0-MR210xB
module.
ATWINC15x0
Design Considerations
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 35
13. Reflow Profile Information
This chapter provides guidelines for reflow processes in getting the Microchip module soldered to the
customer’s design.
13.1 Storage Condition
13.1.1 Moisture Barrier Bag Before Opening
A moisture barrier bag must be stored in a temperature of less than 30°C with humidity under 85% RH.
The calculated shelf life for the dry-packed product shall be 12 months from the date the bag is sealed.
13.1.2 Moisture Barrier Bag Open
Humidity indicator cards must be blue, <30%.
13.2 Solder Paste
Sn-Ag-Cu eutectic solder with melting temperature of 217°C is most commonly used for lead-free solder
reflow application. This alloy is widely accepted in the semiconductor industry due to its low cost,
relatively low melting temperature, and good thermal fatigue resistance. Some recommended pastes
include NC-SMQ® 230 flux and Indalloy® 241 solder paste made up of 95.5 Sn/3.8 Ag/0.7 Cu or SENJU
N705-GRN3360-K2-V Type 3, no clean paste.
13.3 Stencil Design
The recommended stencil is laser-cut, stainless steel type with a thickness of 100µm to 130µm and
approximately a 1:1 ratio of stencil opening to pad dimension. To improve paste release, a positive taper
with bottom opening 25µm larger than the top can be utilized. Local manufacturing experience may find
other combinations of stencil thickness and aperture size to get good results.
13.4 Printing Process
The printing process requires no significant changes compared to Sn/Pb solder. Any guidelines
recommended by the paste manufacturers to accommodate paste specific characteristics should be
followed. Post-print inspection and paste volume measurement is very critical to ensure good print quality
and uniform paste.
13.5 Baking Conditions
This module is rated at MSL level 3. After a sealed bag is opened, no baking is required within 168 hours
so long as the devices are held at ≤30°C/60% RH or stored at <10% RH.
The module will require baking before mounting if:
The sealed bag has been open for >168 hours
Humidity Indicator Card reads >10%
SIPs need to be baked for 8 hours at 125°C
ATWINC15x0
Reflow Profile Information
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 36
13.6 Soldering and Reflow Condition
The optimization of the reflow process is the most critical factor to be considered for lead-free soldering.
The development of an optimal profile should take into account the paste characteristics, the size of the
board, the density of the components, the mix of the larger and smaller components, and the peak
temperature requirements of the components. An optimized reflow process is the key to ensuring a
successful lead-free assembly and achieves high yield and long term solder joint reliability.
Temperature Profiling
Temperature profiling should be performed for all new board designs by attaching thermocouples at the
solder joints, on the top surface of the larger components, and at multiple locations of the boards. This is
to ensure that all components are heated to a temperature above the minimum reflow temperatures and
the smaller components do not exceed maximum temperature limit. The SnAgCu solder alloy melts at
~217°C, so the reflow temperature peak at joint level should be 15 to 20°C higher than melting
temperature. The targeted solder joint temperature for the Sn-Ag-Cu solder should be ~235°C. For larger
or sophisticated boards with a large mix of components, it is also important to ensure that the
temperature difference across the board is less than 10 degrees to minimize board warpage. The
maximum temperature at the component body should not exceed the MSL3 qualification specification.
13.6.1 Reflow Oven
It is strongly recommended that a reflow oven equipped with more heating zones and Nitrogen
atmosphere should be used for lead-free assembly. Nitrogen atmosphere has shown to improve the wet-
ability and reduce temperature gradient across the board. It can also enhance the appearance of the
solder joints by reducing the effects of oxidation.
The following items should also be observed in the reflow process:
1. Some recommended pastes include:
NC-SMQ® 230 flux and Indalloy® 241 solder paste made up of 95.5 Sn/3.8 Ag/0.7 Cu
SENJU N705-GRN3360-K2-V Type 3, no clean paste.
2. Allowable reflow soldering iterations:
Three times based on the following reflow soldering profile (refer following Figure).
3. Temperature profile:
Reflow soldering shall be done according to the following temperature profile (refer to the
following figure).
Peak temperature: 250°C.
ATWINC15x0
Reflow Profile Information
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 37
Figure 13-1. Solder Reflow Profile
25oC
Slope: 1~2oC/sec max.
(217oC to peak) (Peak: 250oC)
Ramp down rate:
Max. 2.5oC/sec.
Time (sec)
40 ~ 70 sec.
60 ~ 120 sec.
Ramp up rate:
Max. 2.5oC/sec.
Preheat:150 ~ 200oC
217oC
Cleaning
The exposed ground paddle helps to self-align the module, avoiding pad misalignment. The use of no
clean solder pastes is recommended. Full drying of no-clean paste fluxes as a result of the reflow process
must be ensured. This may require longer reflow profiles and/or peak temperatures toward the high end
of the process window as recommended by the solder paste vendor. It is believed that uncured flux
residues could lead to corrosion and/or shorting in accelerated testing and possibly the field.
Rework
Rework is to remove the mounted SIP package and replace with a new unit. It is recommended that once
an ATWINC15x0-MR210xB Module has been removed it should never be reused. During the rework
process, the mounted module and PCB are heated partially, and the module is removed. It is
recommended to pay attention to heat-proof the proximity of the mounted parts and junctions and use the
best nozzle for rework that is suited to the module size.
ATWINC15x0
Reflow Profile Information
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 38
14. Regulatory Approval
Regulatory Approvals received.
ATWINC1500-MR210PB
United States/FCC ID: 2ADHKATWINC1500
Canada
IC: 20266-WINC1500PB
HVIN: ATWINC1500-MR210PB
Europe - CE
ATWINC1510-MR210PB
United States/FCC ID: 2ADHKATWINC1510
Canada
IC: 20266-ATWINC1510
HVIN: ATWINC1510-MR210PB
Europe - CE
ATWINC1500-MR210UB
United States/FCC ID: 2ADHKATWINC1500U
Canada
IC: 20266-WINC1500UB
HVIN: ATWINC1500-MR210UB
14.1 United States
The ATWINC1500-MR210PB, ATWINC1510-MR210PB and ATWINC1500-MR210UB modules have
received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C
“Intentional Radiators” single-modular approval in accordance with Part 15.212 Modular Transmitter
approval. Single-modular transmitter approval is defined as a complete RF transmission sub-assembly,
designed to be incorporated into another device, that must demonstrate compliance with FCC rules and
policies independent of any host. A transmitter with a modular grant can be installed in different end-use
products (referred to as a host, host product, or host device) by the grantee or other equipment
manufacturer, then the host product may not require additional testing or equipment authorization for the
transmitter function provided by that specific module or limited module device.
The user must comply with all of the instructions provided by the Grantee, which indicate installation
and/or operating conditions necessary for compliance.
A host product itself is required to comply with all other applicable FCC equipment authorization
regulations, requirements, and equipment functions that are not associated with the transmitter module
portion. For example, compliance must be demonstrated: to regulations for other transmitter components
within a host product; to requirements for unintentional radiators (Part 15 Subpart B), such as digital
devices, computer peripherals, radio receivers, etc.; and to additional authorization requirements for the
non-transmitter functions on the transmitter module (i.e., Verification or Declaration of Conformity) as
appropriate (e.g., Bluetooth and Wi-Fi transmitter modules may also contain digital logic functions).
14.1.1 Labeling And User Information Requirements
The ATWINC1500-MR210PB, ATWINC1510-MR210PB and ATWINC1500-MR210UB modules have
been labeled with its own FCC ID number, and if the FCC ID is not visible when the module is installed
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 39
inside another device, then the outside of the finished product into which the module is installed must
display a label referring to the enclosed module. This exterior label should use the following wording:
For the ATWINC1500-MR210PB:
Contains Transmitter Module FCC ID: 2ADHKATWINC1500
or
Contains FCC ID: 2ADHKATWINC1500
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
For the ATWINC1510-MR210PB:
Contains Transmitter Module FCC ID: 2ADHKATWINC1510
or
Contains FCC ID: 2ADHKATWINC1510
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
For the ATWINC1500-MR210UB:
Contains Transmitter Module FCC ID: 2ADHKATWINC1500U
or
Contains FCC ID: 2ADHKATWINC1500U
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
The user's manual for the finished product should include the following statement:
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can radiate
radio frequency energy, and if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
Consult the dealer or an experienced radio/TV technician for help
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 40
Additional information on labeling and user information requirements for Part 15 devices can be found in
KDB Publication 784748, which is available at the FCC Office of Engineering and Technology (OET)
Laboratory Division Knowledge Database (KDB) https://apps.fcc.gov/oetcf/kdb/index.cfm.
14.1.2 RF Exposure
All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF
Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities,
operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by
the Federal Communications Commission (FCC).
From the FCC Grant: Output power listed is conducted. This transmitter is restricted for use with the
specific antenna(s) tested in this application for Certification.
In the end product, the antenna(s) used with this transmitter must be installed to provide a separation
distance of at least 6.5 cm from all persons and must not be co-located or operation in conjunction with
any other antenna or transmitter. User and installers must be provided with antenna installation
instructions and transmitter operating conditions for satisfying the RF exposure compliance.
14.1.3 Approved Antenna Types
To maintain modular approval in the United States, only the antenna types that have been tested shall be
used. It is permissible to use different antenna provided the same antenna type and antenna gain (equal
to or less than) is used. An antenna type comprises antennas having similar in-band and out-of-band
radiation patterns.
Testing the ATWINC1500-MR210UB module was performed with the antenna types listed in Table 12-1.
14.1.4 Helpful Web Sites
Federal Communications Commission (FCC): http://www.fcc.gov
FCC Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB)
https://apps.fcc.gov/oetcf/kdb/index.cfm
14.2 Canada
The ATWINC1500-MR210PB, ATWINC1510-MR210PB and ATWINC1500-MR210UB modules have
been certified for use in Canada under Innovation, Science, and Economic Development Canada (ISED,
formerly Industry Canada) Radio Standards Procedure (RSP) RSP-100, Radio Standards Specification
(RSS) RSS-Gen and RSS-247. Modular approval permits the installation of a module in a host device
without the need to recertify the device.
14.2.1 Labeling and User Information Requirements
Labeling Requirements (from RSP-100 - Issue 11, Section 3): The host product shall be properly labeled
to identify the module within the host device.
The Innovation, Science and Economic Development Canada certification label of a module shall be
clearly visible at all times when installed in the host device; otherwise, the host product must be labeled to
display the Innovation, Science and Economic Development Canada certification number of the module,
preceded by the word “Contains” or similar wording expressing the same meaning, as follows:
For the ATWINC1500-MR210PB:
Contains IC: 20266-WINC1500PB
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 41
For the ATWINC1510-MR210PB:
Contains IC: 20266-ATWINC1510
For the ATWINC1500-MR210UB module:
Contains IC: 20266-WINC1500UB
User Manual Notice for License-Exempt Radio Apparatus (from Section 8.4 RSS-Gen, Issue 4,
November 2014): User manuals for license-exempt radio apparatus shall contain the following or
equivalent notice in a conspicuous location in the user manual or alternatively on the device or both:
This device complies with Industry Canada's license exempt RSS standard(s). Operation is
subject to the following two conditions:
(1) This device may not cause interference, and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
Guidelines on Transmitter Antenna for License Exempt Radio Apparatus:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of
a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce
potential radio interference to other users, the antenna type and its gain should be so chosen
that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut
fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour
l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique
à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la
puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à
l'établisse-ment d'une communication satisfaisante.
Immediately following the above notice, the manufacturer shall provide a list of all antenna types
approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and
required impedance for each.
14.2.2 Transmitter Antenna (From Section 8.3 RSS-GEN, Issue 4, November 2014)
User manuals for transmitters equipped with detachable antennas shall also contain the following notice
in a conspicuous location:
This radio transmitter (identify the device by certification number, or model number if Category
II) has been approved by Industry Canada to operate with the antenna types listed below with the
maximum permissible gain and required antenna impedance for each antenna type indicated.
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 42
Antenna types not included in this list, having a gain greater than the maximum gain indicated
for that type, are strictly prohibited for use with this device.
Le présent émetteur radio (identifier le dispositif par son numéro de certification) a été approuvé
par Industrie Canada pour fonctionner avec les types d'antenne énumérés cidessous et ayant
un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est
supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
14.2.3 RF Exposure
All transmitters regulated by Innovation, Science and Economic Development Canada (ISED) must
comply with RF exposure requirements listed in RSS-102 - Radio Frequency (RF) Exposure Compliance
of Radiocommunication Apparatus (All Frequency Bands).
This transmitter is restricted for use with a specific antenna tested in this application for certification, and
must not be co-located or operating in conjunction with any other antenna or transmitters within a host
device, except in accordance with Canada multi-transmitter product procedures.
The installation of the transmitter must ensure that the antenna has a separation distance of at least 6.5
cm from all persons or compliance must be demonstrated according to the ISED SAR procedures.
14.2.4 Helpful Web Sites
Innovation, Science and Economic Development Canada (ISED): http://www.ic.gc.ca/
14.3 Europe
The ATWINC15x0-MR210PB module is a Radio Equipment Directive (RED) assessed radio module that
is CE marked and has been manufactured and tested with the intention of being integrated into a final
product.
The ATWINC15x0-MR210PB module has been tested to RED 2014/53/EU Essential Requirements for
Health and Safety (Article (3.1(a)), Electromagnetic Compatibility (EMC) (Article 3.1(b)), and Radio
(Article 3.2), which is summarized in the following European Compliance Testing table.
The ETSI provides guidance on modular devices in the “Guide to the application of harmonised standards
covering articles 3.1b and 3.2 of the RED 2014/53/EU (RED) to multi-radio and combined radio and non-
radio equipment” document available at http://www.etsi.org/deliver/etsi_eg/203300_203399/20
3367/01.01.01_60/eg_203367v010101p.pdf.
Note:  To maintain conformance to the testing listed in the following European Compliance Testing table
the module shall be installed in accordance with the installation instructions in this data sheet and shall
not be modified. When integrating a radio module into a completed product, the integrator becomes the
manufacturer of the final product and is therefore responsible for demonstrating compliance of the final
product with the essential requirements against the RED.
14.3.1 Labeling and User Information Requirements
The label on the final product that contains the ATWINC15x0-MR210PB module must follow CE marking
requirements.
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 43
Table 14-1. European Compliance Testing (ATWINC15x0-MR210PB)
Certification Standards Article Laboratory Report
Number
Date
Safety EN60950-1:2006/A11:2009/
A1:2010/ A12:2011/A2:2013
[3.1(a)]
TUV
Rheinland,
Taiwan
10059657
001 2017-02-20
Health EN300328 V1.9.1/
EN62311:2008
50068130
002
2017-02-20
EMC
EN301489-1 V1.9.2
[3.1(b)]
10058459
002 2017-02-20
EN301489-17 V2.2.1
EN301489-1 V2.1.1
EN301489-1 V2.2.0 10058459
003 2017-05-25
EN301489-17 V3.1.1
EN301489-17 V3.2.0
Radio EN300328 V1.9.1
(3.2)
50068130
002
2017-02-20
EN300328 V2.1.1 50068130
003 2017-05-26
14.3.2 Conformity Assessment
From ETSI Guidance Note EG 203367, section 6.1, when non-radio products are combined with a radio
product:
If the manufacturer of the combined equipment installs the radio product in a host non-radio product in
equivalent assessment conditions (i.e. host equivalent to the one used for the assessment of the radio
product) and according to the installation instructions for the radio product, then no additional assessment
of the combined equipment against article 3.2 of the RED is required.
The European Compliance Testing listed in the preceeding table was performed using the integral chip
antenna.
14.3.2.1 Simplified EU Declaration of Conformity
Hereby, Microchip Technology Inc. declares that the radio equipment type ATWINC15x0-MR210PB is in
compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity for this product is available at http://www.microchip.com/
design-centers/wireless-connectivity/.
14.3.3 Helpful Websites
A document that can be used as a starting point in understanding the use of Short Range Devices (SRD)
in Europe is the European Radio Communications Committee (ERC) Recommendation 70-03 E, which
can be downloaded from the European Communications Committee (ECC) at: http://www.ecodocdb.dk/.
Additional helpful web sites are:
Radio Equipment Directive (2014/53/EU):
https://ec.europa.eu/growth/single-market/european-standards/harmonised-standards/red_en
European Conference of Postal and Telecommunications Administrations (CEPT):
http://www.cept.org
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 44
European Telecommunications Standards Institute (ETSI):
http://www.etsi.org
The Radio Equipment Directive Compliance Association (REDCA):
http://www.redca.eu/
14.4 Other Regulatory Information
For information about other countries' jurisdictions not covered here, refer to http://
www.microchip.com/design-centers/wireless-connectivity
Should other regulatory jurisdiction certification be required by the customer, or the customer needs
to recertify the module for other reasons, contact Microchip for the required utilities and
documentation
ATWINC15x0
Regulatory Approval
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 45
15. Reference Documentation and Support
15.1 Reference Documents
The following table provides the set of collateral documents to ease integration and device ramp.
Table 15-1. Reference Documents
Title Content
ATWINC1500 MU Device
Datasheet
Datasheet for the ATWINC1500 SmartConnect Wi-Fi component.
For more details, contact a Microchip sales representative.
Platform Getting Started Guide Details on how to evaluate the WINC15X0 Network Controller
Module.
Flash Memory Download
Procedure
Details the download procedures of firmware, root certificate, gain
table values, etc.
ATWINC1500 Wi-Fi Network
Controller Software Design Guide
Integration guide with a clear description of High-level Arch, an
overview on how to write a networking application, list all APIs,
parameters, and structures.
Features of the device, SPI/handshake protocol between device
and host MCU, with flow/sequence/state diagram, and timing.
Software Programming Guide
(ATWINC15x0)
Details the flow chart and how to use each API to implement all
generic use cases (for example, start AP, start STA, provisioning,
UDP, TCP, HTTP, TLS, p2p, errors management, connection/
transfer recovery mechanism/state diagram) - usage and sample
application note.
Note:  A Design Files Package is available under NDA. For more details, contact a Microchip sales
representative.
For a complete listing of development-support tools and documentation, visit www.microchip.com, or refer
to the customer support section on options to locate the nearest Microchip field representative.
ATWINC15x0
Reference Documentation and Support
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 46
16. Document Revision History
Note:  The datasheet revision is independent of the die revision (Revision bit in the Device Identification
register of the Device Service Unit, DSU.DID.REVISION) and the device variant (last letter of the ordering
number).
Rev B - 12/2017
Section Changes
Introduction Editorial updates.
Features Editorial updates.
Regulatory Approvals Revised the content of certifications.
Reference Documents Updated Table 15-1.
Rev A - 02/2017
Section Changes
Document Change of document style.
Change the name to incorporate all the
ATWINC15x0-MR210xB module family.
New Microchip document number. Previous
version was Atmel document 42502 rev. B.
Product Description Added description information indicating that
the document content is relevant to all
WINC1500 Module models unless noted.
Changed SSL references to TLS.
Removed WAPI security.
Removed UART as host interface.
Editorial updates.
Product Features Removed WAPI security.
Removed UART and I2C as host interfaces.
Removed Bluetooth coexistance interface.
Replaced SSL with TLS.
Added 26 MHz crystal.
Removed: (4KB flash – less than 1KB RAM).
Order Information and Module Marking Revised Ordering table.
Revised Marking information. Figure.
Block Diagram Revised Block Diagram figure.
Pin Description Revised Pin Description drawing.
Editorial updates.
ATWINC15x0
Document Revision History
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 47
Section Changes
Electrical Specifications Revised VDDIO maximum voltage in table
4.1 and added max temperatures.
Revised table 4-2 to include Recommended
operating temperature.
CPU and Memory Subsystems Editorial update.
WLAN Subsystem RADIO Added text regarding performance derating
at cold temperature.
Features table revisions and changes:
Corrected the package height
Revised Storage temperature
Added performance test conditions to the
performance tables.
Revised the Receive performance in table
6-2.
Revised the 802.11b mode Transmit
performance numbers in table 6-3.
Revised Transmit performance Footnotes.
Changed max frequency to 2.472GHz.
Editorial updates.
External Interfaces Revised SPI timing information in table 7-3.
Removed Bluetooth Coexistance section.
Removed SDIO.
Editorial updates.
Power Consumption Added Module Reset section for reset
duration.
Editorial updates.
ATWINC15x0-MR210PB Placement and Routing
Guidelines
Added text for antenna types used in test
and an associated table.
Revised Co-Ax connector type.
Schematic Design Information Removed SDIO schematic.
Editorial updates.
Module Drawings Updated module drawing figures and figure
titles.
Added section with footprint drawing.
Design Considerations Added sections for Module design and
assembly considerations, and module PCB
placement.
Reflow Profile Information Revised reflow profile picture to be clearer.
ATWINC15x0
Document Revision History
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 48
Section Changes
Editorial updates.
Certification Notices Added section for Agency Certification
notices (now under Regulatory Approvals
with Rev. B).
Agency Regulatory Approvals Added back Agency Approval section.
Revised content of certifications.
Reference Documents Moved Design File Package to a separate
paragraph below the table to remove web
availability aspect and to contact sales.
Rev B - 02/2016
Document Updated copyright date to 2016.
Updated footers.
Module Outline Drawing Revised Module outline drawings to show
Ground pad to be soldered.
Pulled out Footprint drawing as this is
covered in the Module drawing.
WLAN Subsystem Radio Revised Transmit Performance Table 6-3.
Power Consumption Revised current table references in Table
8-1.
Schematic Design Information Updated Schematics Section 11 text and
figures Figure 11-1 and Figure 11-2.
Reflow Profile Information Revised section 12 Reflow Profile
Information.
Reference Documents Updated Document Reference table to
include the ATWINC1500-MU datasheet.
Rev A - 07/2015
Document Updated due to changes in the ATWINC1500 from
Rev A to Rev B.
Description Updated model revisions to rev B.
Corrected Package dimensions.
Features Added Hardware Accelerator content to
features list.
Pinout Information Updated reference schematic.
ATWINC15x0
Document Revision History
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 49
New pin list adds GPIO's 3,4,5 and 6.
CPU and Memory Subsystems Increased Memory from 182KB to 160KB.
External Interfaces Improved and corrected description of
Coexistence interface.
Editorial updates.
Power Consumption Updated power numbers and description,
added high-power and low-power modes.
WLAN Subsystem Radio Updated Performance numbers.
ATWINC15x0
Document Revision History
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 50
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Microchip is willing to work with the customer who is concerned about the integrity of their code.
ATWINC15x0
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 51
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
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Code protection is constantly evolving. We at Microchip are committed to continuously improving the
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All other trademarks mentioned herein are property of their respective companies.
ATWINC15x0
© 2017 Microchip Technology Inc. Datasheet DS70005304B-page 52
© 2017, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
ISBN: 978-1-5224-2512-0
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