CAT5269WI-00 - ON Semiconductor L.L.C.

May, 2012 − Rev. 6

1Publication Order Number:

CAT5269/D

CAT5269

Dual Digitally Program-

mable Potentiometers (DPP)

with 256 Taps and 2-wire

Interface

Description

The CAT5269 is two Digitally Programmable Potentiometers

(DPPs) integrated with control logic and 18 bytes of NVRAM

memory. Each DPP consists of a series of resistive elements connected

between two externally accessible end points. The tap points between

each resistive element are connected to the wiper outputs with CMOS

switches. A separate 8−bit control register (WCR) independently

controls the wiper tap switches for each DPP. Associated with each

wiper control register are four 8−bit non−volatile memory data

registers (DR) used for storing up to four wiper settings. Writing to the

wiper control register or any of the non−volatile data registers is via a

2−wire serial bus. On power−up, the contents of the first data register

(DR0) for each of the potentiometers is automatically loaded into its

respective wiper control registers.

The CAT5269 can be used as a potentiometer or as a two terminal,

variable resistor. It is intended for circuit level or system level

adjustments in a wide variety of applications. It is available in the

−40°C to 85°C industrial operating temperature range and offered in a

24−lead SOIC and TSSOP package.

Features

•Four Linear Taper Digitally Programmable Potentiometers

•256 Resistor Taps per Potentiometer

•End to End Resistance 50 kW or 100 kW

•Potentiometer Control and Memory Access via 2−wire Interface

(I2C like)

•Low Wiper Resistance, Typically 100 W

•Nonvolatile Memory Storage for up to Four Wiper Settings for Each

Potentiometer

•Automatic Recall of Saved Wiper Settings at Power Up

•2.5 to 6.0 Volt Operation

•Standby Current less than 1 mA

•1,000,000 Nonvolatile WRITE Cycles

•100 Year Nonvolatile Memory Data Retention

•24−lead SOIC and TSSOP Packages

•Industrial Temperature Range

•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

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TSSOP−24

Y SUFFIX

CASE 948AR

PIN CONNECTIONS

SOIC−24 (W)

TSSOP−24 (Y)

(Top View)

SCL

SOIC−24

W SUFFIX

CASE 751BK

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

ORDERING INFORMATION

GND

RW1

RH1

RL1

VCC

RL0

RH0

RW0

CAT5269

SDA

CAT5269

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L3B

CAT5269WT

−RRYMXXXX

L = Assembly Location

3 = Lead Finish − Matte−Tin

B = Product Revision (Fixed as “B”)

CAT5269W = Device Code

T = Temperature Range (I = Industrial)

− = Dash

RR = Resistance

25 = 2.5 KW

10 = 10 KW

50 = 50 KW

00 = 100 KW

Y = Production Year (Last Digit)

M = Production Month (1−9, O, N, D)

XXXX = Last Four Digits of Assembly Lot Number

RLB

CAT5269YT

3YMXXX

R = Resistance

1 = 2.5 KW

2 = 10 KW

4 = 50 KW

5 = 100 KW

L = Assembly Location

B = Product Revision (Fixed as “B”)

CAT5269Y = Device Code

T = Temperature Range (I = Industrial)

3 = Lead Finish − Matte−Tin

Y = Production Year (Last Digit)

M = Production Month (1−9, O, N, D)

XXX = Last Three Digits of Assembly Lot Number

MARKING DIAGRAMS

(SOIC−24) (TSSOP−24)

CAT5269

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Figure 1. Functional Diagram

NONVOLATILE

DATA

REGISTERS

WIPER

CONTROL

REGISTERS

CONTROL

LOGIC

2−WIRE BUS

INTERFACE

SCL

SDA

RW1

RW0

RL0 RL1

RH0 RH1

Table 1. PIN DESCRIPTIONS

Pin # Name Function

1 NC No Connect

2 A0 Device Address, LSB

3 NC No Connect

4 NC No Connect

5 NC No Connect

6 NC No Connect

7 VCC Supply Voltage

8 RL0 Low Reference Terminal for Potentiometer 0

9 RH0 High Reference Terminal for Potentiometer 0

10 RW0 Wiper Terminal for Potentiometer 0

11 A2 Device Address

12 WP Write Protection

13 SDA Serial Data Input/Output

14 A1 Device Address

15 RL1 Low Reference Terminal for Potentiometer 1

16 RH1 High Reference Terminal for Potentiometer 1

17 RW1 Wiper Terminal for Potentiometer 1

18 GND Ground

19 NC No Connect

20 NC No Connect

21 NC No Connect

22 NC No Connect

23 SCL Bus Serial Clock

24 A3 Device Address

CAT5269

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Pin Descriptions

SCL: Serial Clock

The CAT5269 serial clock input pin is used to clock all data

transfers into or out of the device.

SDA: Serial Data

The CAT5269 bidirectional serial data pin is used to transfer

data into and out of the device. The SDA pin is an open drain

output and can be wire−Ored with the other open drain or

open collector I/Os.

A0, A1, A2, A3: Device Address Inputs

These inputs set the device address when addressing

multiple devices. A total of sixteen devices can be addressed

on a single bus. A match in the slave address must be made

with the address input in order to initiate communication

with the CAT5269.

RH, RL: Resistor End Points

The two sets of RH and RL pins are equivalent to the terminal

connections on a mechanical potentiometer.

RW: Wiper

The RW pins are equivalent to the wiper terminal of a

mechanical potentiometer.

WP: Write Protect Input

The WP pin when tied low prevents non−volatile writes to

the data register (change of wiper control register is allowed)

and when tied high or left floating normal read/write

operations are allowed. See Write Protection on page 8 for

more details.

Device Operation

The CAT5269 is two resistor arrays integrated with a

2−wire serial interface, two 8−bit wiper control registers and

eight 8−bit, non−volatile memory data registers. Each

resistor array contains 255 separate resistive elements

connected in series. The physical ends of each array are

equivalent to the fixed terminals of a mechanical

potentiometer (RH and RL). The tap positions between and

at the ends of the series resistors are connected to the output

wiper terminals (RW) by a CMOS transistor switch. Only

one tap point for each potentiometer is connected to its wiper

terminal at a time and is determined by the value of the wiper

control register. Data can be read or written to the wiper

control registers or the non−volatile memory data registers

via the 2−wire bus. Additional instructions allow data to be

transferred between the wiper control registers and each

respective potentiometer’s non−volatile data registers. Also,

the device can be instructed to operate in an

“increment/decrement” mode.

CAT5269

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Table 2. ABSOLUTE MAXIMUM RATINGS

Parameters Ratings Units

Temperature Under Bias −55 to +125 °C

Storage Temperature −65 to +150 °C

Voltage on Any Pin with Respect to VSS (Note 1) −2.0 to +VCC + 2.0 V

VCC with Respect to Ground −2.0 to +7.0 V

Package Power Dissipation Capability (TA = 25°C) 1.0 W

Lead Soldering Temperature (10 s) 300 °C

Wiper Current ±6 mA

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

Table 3. RECOMMENDED OPERATING CONDITIONS

Parameters Ratings Units

VCC +2.5 to +6.0 V

Industrial Temperature −40 to +85 °C

Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)

Symbol Parameter Test Conditions

Limits

Units

Min Typ Max

RPOT Potentiometer Resistance (100 kW)100 kW

RPOT Potentiometer Resistance (50 kW)50 kW

Potentiometer Resistance Tolerance ±20 %

RPOT Matching 1 %

Power Rating 25°C, each pot 50 mW

IWWiper Current ±3 mA

RWWiper Resistance IW = ±3 mA @ VCC = 3 V 200 300 W

RWWiper Resistance IW = ±3 mA @ VCC = 5 V 100 150 W

VTERM Voltage on any RH or RL Pin VSS = 0 V VSS VCC V

Resolution 0.4 %

Absolute Linearity (Note 4) Rw(n)(actual)−R(n)(expected)

(Note 7)

±1 LSB

(Note 6)

Relative Linearity (Note 5) Rw(n+1)−[Rw(n)+LSB]

(Note 7)

±0.2 LSB

(Note 6)

TCRPOT Temperature Coefficient of RPOT (Note 3) ±300 ppm/°C

TCRATIO Ratiometric Temp. Coefficient (Note 3) 20 ppm/°C

CH/CL/CWPotentiometer Capacitances (Note 3) 10/10/25 pF

fc Frequency Response RPOT = 50 kW (Note 3) 0.4 MHz

1. The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC

voltage on output pins is VCC +0.5 V, which may overshoot to VCC +2.0 V for periods of less than 20 ns.

2. Latch−up protection is provided for stresses up to 100 mA on address and data pins from –1 V to VCC +1 V.

3. This parameter is tested initially and after a design or process change that affects the parameter.

4. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a

potentiometer.

5. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.

It is a measure of the error in step size.

6. LSB = RTOT / 255 or (RH − RL) / 255, single pot

7. n = 0, 1, 2, ..., 255

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Table 5. D.C. OPERATING CHARACTERISTICS (VCC = +2.5 V to +6.0 V, unless otherwise specified.)

Symbol Parameter Test Conditions Min Max Units

ICC1 Power Supply Current fSCL = 400 kHz, SDA = Open

VCC = 6 V, Inputs = GND

1 mA

ICC2 Power Supply Current

Non−volatile WRITE

fSCK = 400 kHz, SDA Open

VCC = 6 V, Input = GND

5 mA

ISB Standby Current (VCC = 5 V) VIN = GND or VCC, SDA = Open 5mA

ILI Input Leakage Current VIN = GND to VCC 10 mA

ILO Output Leakage Current VOUT = GND to VCC 10 mA

VIL Input Low Voltage −1 VCC x 0.3 V

VIH Input High Voltage VCC x 0.7 VCC + 1.0 V

VOL1 Output Low Voltage (VCC = 3 V) IOL = 3 mA 0.4 V

Table 6. CAPACITANCE (TA = 25°C, f = 1.0 MHz, VCC = 5 V)

Symbol Test Conditions Max Units

CI/O (Note 8) Input/Output Capacitance (SDA) VI/O = 0 V 8 pF

CIN (Note 8) Input Capacitance (A0, A1, A2, A3, SCL, WP) VIN = 0 V 6 pF

Table 7. A.C. CHARACTERISTICS

Symbol Parameter

2.5 V − 6.0 V

Units

Min Max

fSCL Clock Frequency 400 kHz

TI (Note 8) Noise Suppression Time Constant at SCL, SDA Inputs 200 ns

tAA SLC Low to SDA Data Out and ACK Out 1ms

tBUF (Note 8) Time the bus must be free before a new transmission can start 1.2 ms

tHD:STA Start Condition Hold Time 0.6 ms

tLOW Clock Low Period 1.2 ms

tHIGH Clock High Period 0.6 ms

tSU:STA Start Condition Setup Time (for a Repeated Start Condition) 0.6 ms

tHD:DAT Data in Hold Time 0 ns

tSU:DAT Data in Setup Time 50 ns

tR (Note 8) SDA and SCL Rise Time 0.3 ms

tF (Note 8) SDA and SCL Fall Time 300 ns

tSU:STO Stop Condition Setup Time 0.6 ms

tDH Data Out Hold Time 100 ns

8. This parameter is tested initially and after a design or process change that affects the parameter.

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Table 8. POWER UP TIMING (Notes 9, 10)

Symbol Parameter Max Units

tPUR Power−up to Read Operation 1 ms

tPUW Power−up to Write Operation 1 ms

Table 9. WIPER TIMING

Symbol Parameter Max Units

tWRPO Wiper Response Time After Power Supply Stable 10 ms

tWRL Wiper Response Time After Instruction Issued 10 ms

Table 10. WRITE CYCLE LIMITS (Note 11)

Symbol Parameter Max Units

tWR Write Cycle Time 5 ms

Table 11. RELIABILITY CHARACTERISTICS

Symbol Parameter Reference Test Method Min Max Units

NEND (Note 9) Endurance MIL−STD−883, Test Method 1033 1,000,000 Cycles/Byte

TDR (Note 9) Data Retention MIL−STD−883, Test Method 1008 100 Years

VZAP (Note 9) ESD Susceptibility MIL−STD−883, Test Method 3015 2000 V

ILTH (Note 9) Latch−Up JEDEC Standard 17 100 mA

9. This parameter is tested initially and after a design or process change that affects the parameter.

10.tPUR and tPUW are delays required from the time VCC is stable until the specified operation can be initiated.

11. The write cycle is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the write

cycle, the bus interface circuits are disabled, SDA is allowed to remain high, and the device does not respond to its slave address.

Figure 2. Bus Timing

SCL

SDA IN

SDA OUT

tSU:STA

tHD:STA

tLOW

tAA tDH

tHD:DAT

tSU:STO

tBUF

tSU:DAT

tLOW

tHIGH

CAT5269

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Serial Bus Protocol

The following defines the features of the 2−wire bus

protocol:

1. Data transfer may be initiated only when the bus is

not busy.

2. During a data transfer, the data line must remain

stable whenever the clock line is high. Any

changes in the data line while the clock is high

will be interpreted as a START or STOP condition.

The device controlling the transfer is a master, typically a

processor or controller, and the device being controlled is the

slave. The master will always initiate data transfers and

provide the clock for both transmit and receive operations.

Therefore, the CAT5269 will be considered a slave device

in all applications.

START Condition

The START Condition precedes all commands to the

device, and is defined as a HIGH to LOW transition of SDA

when SCL is HIGH. The CAT5269 monitors the SDA and

SCL lines and will not respond until this condition is met.

STOP Condition

A LOW to HIGH transition of SDA when SCL is HIGH

determines the STOP condition. All operations must end

with a STOP condition.

Device Addressing

The bus Master begins a transmission by sending a

START condition. The Master then sends the address of the

particular slave device it is requesting. The four most

significant bits of the 8−bit slave address are fixed as 0101

for the CAT5269 (see Figure 6). The next four significant

bits (A3, A2, A1, A0) are the device address bits and define

which device the Master is accessing. Up to sixteen devices

may be individually addressed by the system. Typically,

+5 V and ground are hard−wired to these pins to establish

the device’s address.

After the Master sends a START condition and the slave

address byte, the CAT5269 monitors the bus and responds

with an acknowledge (on the SDA line) when its address

matches the transmitted slave address.

Acknowledge

After a successful data transfer, each receiving device is

required to generate an acknowledge. The Acknowledging

device pulls down the SDA line during the ninth clock cycle,

signaling that it received the 8 bits of data.

The CAT5269 responds with an acknowledge after

receiving a START condition and its slave address. If the

device has been selected along with a write operation, it

responds with an acknowledge after receiving each 8−bit

byte.

When the CAT5269 is in a READ mode it transmits 8 bits

of data, releases the SDA line, and monitors the line for an

acknowledge. Once it receives this acknowledge, the

CAT5269 will continue to transmit data. If no acknowledge

is sent by the Master, the device terminates data transmission

and waits for a STOP condition.

Write Operations

In the Write mode, the Master device sends the START

condition and the slave address information to the Slave

device. After the Slave generates an acknowledge, the

Master sends the instruction byte that defines the requested

operation of CAT5269. The instruction byte consist of a

four−bit opcode followed by two register selection bits and

two pot selection bits. After receiving another acknowledge

from the Slave, the Master device transmits the data to be

written into the selected register. The CAT5269

acknowledges once more and the Master generates the

STOP condition, at which time if a nonvolatile data register

is being selected, the device begins an internal programming

cycle to non−volatile memory. While this internal cycle is in

progress, the device will not respond to any request from the

Master device.

Acknowledge Polling

The disabling of the inputs can be used to take advantage

of the typical write cycle time. Once the stop condition is

issued to indicate the end of the host’s write operation, the

CAT5269 initiates the internal write cycle. ACK polling can

be initiated immediately. This involves issuing the start

condition followed by the slave address. If the CAT5269 is

still busy with the write operation, no ACK will be returned.

If the CAT5269 has completed the write operation, an ACK

will be returned and the host can then proceed with the next

instruction operation.

Write Protection

The Write Protection feature allows the user to protect

against inadvertent programming of the non−volatile data

registers. If the WP pin is tied to LOW, the data registers are

protected and become read only. Similarly, the WP pin going

low after start will interrupt a nonvolatile write to data

registers, while the WP pin going low after an internal write

cycle has stated will have no effect on any write operation

(see also CAT5409 or CAT5259). The CAT5269 will accept

both slave addresses and instructions, but the data registers

are protected from programming by the device’s failure to

send an acknowledge after data is received.

CAT5269

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STOP

CONDITION

START

CONDITION

ADDRESS

ACK8TH BIT

BYTE n

SCL

SDA

Figure 3. Write Cycle Timing

tWR

Figure 4. Start/Stop Condition

START CONDITION

SDA

STOP CONDITION

SCL

Figure 5. Acknowledge Condition

ACKNOWLEDGE

START

SCL FROM

MASTER 89

DATA OUTPUT

FROM TRANSMITTER

DATA OUTPUT

FROM RECEIVER

Figure 6. Slave Address Bits

0 1 0 1 A3 A2 A1 A0

CAT5269

* A0, A1, A2 and A3 correspond to pin A0, A1, A2 and A3 of the device.

** A0, A1, A2 and A3 must compare to its corresponding hard wired input pins.

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Instruction and Register Description

Slave Address Byte

The first byte sent to the CAT5269 from the

master/processor is called the Slave/DPP Address Byte. The

most significant four bits of the slave address are a device

type identifier. These bits for the CAT5269 are fixed at

0101[B] (refer to Figure 8).

The next four bits, A3 − A0, are the internal slave address

and must match the physical device address which is defined

by the state of the A3 − A0 input pins for the CAT5269 to

successfully continue the command sequence. Only the

device which slave address matches the incoming device

address sent by the master executes the instruction. The A3

− A0 inputs can be actively driven by CMOS input signals

or tied to VCC or VSS.

Instruction Byte

The next byte sent to the CAT5269 contains the

instruction and register pointer information. The four most

significant bits used provide the instruction opcode I3 − I0.

The R1 and R0 bits point to one of the four data registers of

each associated potentiometer. The least two significant bits

point to one of four Wiper Control Registers. The format is

shown in Figure 9.

Table 12. DATA REGISTER SELECTION

Data Register Selected R1 R0

DR0 0 0

DR1 0 1

DR1 WCRDATA

BUS ACTIVITY:

MASTER

SDA LINE

SLAVE/DPP

ADDRESS

INSTRUCTION

BYTE

Fixed

Variable

op code

Pot1 WCR

Address

Figure 7. Write Timing

ID3 ID2 ID1 ID0 A3 A2 A1 A0

0101

(MSB) (LSB)

Device Type

Identifier Slave Address

Figure 8. Identification Byte Format

Figure 9. Instruction Byte Format

I3 I2 I1 I0 R1 R0 P1 P0

(MSB) (LSB)

Instruction Data Register WCR/Pot Selection

Opcode Selection

CAT5269

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Wiper Control and Data Registers

Wiper Control Register (WCR)

The CAT5269 contains two 8−bit Wiper Control

Registers, one for each potentiometer. The Wiper Control

along its resistor array. The contents of the WCR can be

altered in four ways: it may be written by the host via Write

Wiper Control Register instruction; it may be written by

transferring the contents of one of four associated Data

Registers via the XFR Data Register instruction; it can be

modified one step at a time by the Increment/decrement

instruction (see Instruction section for more details).

Finally, it is loaded with the content of its data register zero

(DR0) upon power−up.

The Wiper Control Register is a volatile register that loses

its contents when the CAT5269 is powered−down. Although

the register is automatically loaded with the value in DR0

upon power−up, this may be different from the value present

at power−down.

Data Registers (DR)

Each potentiometer has four 8−bit non−volatile Data

Registers. These can be read or written directly by the host.

Data can also be transferred between any of the four Data

Registers and the associated Wiper Control Register. Any

data changes in one of the Data Registers is a non−volatile

operation and will take a maximum of 10 ms.

If the application does not require storage of multiple

settings for the potentiometer, the Data Registers can be used

as standard memory locations for system parameters or user

preference data.

Instructions

Four of the nine instructions are three bytes in length.

These instructions are:

♦Read Wiper Control Register – read the current

wiper position of the selected potentiometer in the

WCR

♦Write Wiper Control Register – change current

wiper position in the WCR of the selected

potentiometer

♦Read Data Register – read the contents of the

selected Data Register

♦Write Data Register – write a new value to the

selected Data Register

Table 13. INSTRUCTION SET

Instruction

Instruction Set

Operation

I3 I2 I1 I0 R1 R0

WCR1/

WCR0/

Read Wiper Control

1 0 0 1 0 0 1/0 1/0 Read the contents of the Wiper Control Register

pointed to by P1−P0

Write Wiper Control

1 0 1 0 0 0 1/0 1/0 Write new value to the Wiper Control Register

pointed to by P1−P0

Read Data Register 1 0 1 1 1/0 1/0 1/0 1/0 Read the contents of the Data Register pointed

to by P1−P0 and R1−R0

Write Data Register 1 1 0 0 1/0 1/0 1/0 1/0 Write new value to the Data Register pointed to

by P1−P0 and R1−R0

XFR Data Register to

Wiper Control

1 1 0 1 1/0 1/0 1/0 1/0 Transfer the contents of the Data Register

pointed to by P1−P0 and R1−R0 to its

associated Wiper Control Register

XFR Wiper Control

1 1 1 0 1/0 1/0 1/0 1/0 Transfer the contents of the Wiper Control

Gang XFR Data

Registers to Wiper

Control Registers

0 0 0 1 1/0 1/0 0 0 Transfer the contents of the Data Registers

pointed to by R1−R0 of both pots to their

respective Wiper Control Registers

Gang XFR Wiper

Control Registers to

Data Register

1 0 0 0 1/0 1/0 0 0 Transfer the contents of both Wiper Control

Registers to their respective data Registers

pointed to by R1−R0 of both pots

Increment/Decrement

Wiper Control Register

0 0 1 0 0 0 1/0 1/0 Enable Increment/decrement of the Control

Latch pointed to by P1−P0

NOTE: 1/0 = data is one or zero

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The basic sequence of the three byte instructions is

illustrated in Figure 11. These three−byte instructions

exchange data between the WCR and one of the Data

Registers. The WCR controls the position of the wiper. The

response of the wiper to this action will be delayed by tWR.

A transfer from the WCR (current wiper position), to a Data

minimum of tWR to complete. The transfer can occur

between one of the two potentiometers and one of its

associated registers; or the transfer can occur between both

potentiometers and one associated register.

Four instructions require a two−byte sequence to

complete, as illustrated in Figure 10. These instructions

transfer data between the host/processor and the CAT5269;

either between the host and one of the data registers or

directly between the host and the Wiper Control Register.

These instructions are:

♦XFR Data Register to Wiper Control Register −

This transfers the contents of one specified Data

♦XFR Wiper Control Register to Data Register −

This transfers the contents of the specified Wiper

Control Register to the specified associated Data

♦Gang XFR Data Register to Wiper Control

Data Registers to the associated Wiper Control

Registers.

♦Gang XFR Wiper Counter Register to Data

Control Registers to the specified associated Data

Registers.

Increment/Decrement Command

The final command is Increment/Decrement (Figures 12

and 13). The Increment/Decrement command is different

from the other commands. Once the command is issued and

the CAT5269 has responded with an acknowledge, the

master can clock the selected wiper up and/or down in one

segment steps; thereby providing a fine tuning capability to

the host. For each SCL clock pulse (tHIGH) while SDA is

HIGH, the selected wiper will move one resistor segment

towards the RH terminal. Similarly, for each SCL clock

pulse while SDA is LOW, the selected wiper will move one

resistor segment towards the RL terminal.

See Instructions format for more detail.

Figure 10. Two−Byte Instruction Sequence

0101

A2 A0 A

I2 I1 I0 R1 R0 P1 A

SDA

ID3 ID2 ID1 ID0 P0

Device ID Internal Instruction

Opcode

Address Register

Address

Pot/WCR

Address

A3 I3

Figure 11. Three−Byte Instruction Sequence

I3 I2 I1 I0 R1 R0

ID3 ID2 ID1 ID0

Device ID Internal Instruction

Opcode

Address Data

Address

Pot/WCR

Address

WCR[7:0]

Data Register D[7:0]

0101

A2 A1 A0 A

P1 P0 A

SDA

D7 D6 D5 D4 D3 D2 D1 D0

Figure 12. Increment/Decrement Instruction Sequence

I3 I2 I1 I0

ID3 ID2 ID1 ID0

Device ID Internal Instruction

Opcode

Address Data

Address

Pot/WCR

Address

0101

A2 A1 A0 A

R0 P1 P0 A

SDA

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Figure 13. Increment/Decrement Timing Limits

SCL

SDA

INC/DEC

Command

Issued

Voltage Out

tWRL

Instruction Format

Table 14. READ WIPER CONTROL REGISTER (WCR)

DEVICE ADDRESSES A

INSTRUCTION A

DATA A

0 1 0 1 A3 A2 A1 A0 1 0 0 1 0 0 P1 P0 7 6 5 4 3 2 1 0

Table 15. WRITE WIPER CONTROL REGISTER (WCR)

DEVICE ADDRESSES A

INSTRUCTION A

DATA A

0 1 0 1 A3 A2 A1 A0 1 0 1 0 0 0 P1 P0 7 6 5 4 3 2 1 0

Table 16. READ DATA REGISTER (DR)

DEVICE ADDRESSES A

INSTRUCTION A

DATA A

0 1 0 1 A3 A2 A1 A0 1 0 1 1 R1 R0 P1 P0 7 6 5 4 3 2 1 0

Table 17. WRITE DATA REGISTER (DR)

DEVICE ADDRESSES A

INSTRUCTION A

DATA A

0 1 0 1 A3 A2 A1 A0 1 1 0 0 R1 R0 P1 P0 7 6 5 4 3 2 1 0

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Table 18. GANG TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR)

DEVICE ADDRESSES A

INSTRUCTION A

0 1 0 1 A3 A2 A1 A0 0 0 0 1 R1 R0 0 0

Table 19. GANG TRANSFER WIPER CONTROL REGISTER (WCR) TO DATA REGISTER (DR)

DEVICE ADDRESSES A

INSTRUCTION A

0 1 0 1 A3 A2 A1 A0 1 0 0 0 R1 R0 0 0

Table 20. TRANSFER WIPER CONTROL REGISTER (WCR) TO DATA REGISTER (DR)

DEVICE ADDRESSES A

INSTRUCTION A

0 1 0 1 A3 A2 A1 A0 1 1 1 0 R1 R0 P1 P0

Table 21. TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR)

DEVICE ADDRESSES A

INSTRUCTION A

0 1 0 1 A3 A2 A1 A0 1 1 0 1 R1 R0 P1 P0

Table 22. INCREMENT (I)/DECREMENT (D) WIPER CONTROL REGISTER (WCR)

DEVICE ADDRESSES A

INSTRUCTION A

DATA S

0 1 0 1 A3 A2 A1 A0 0 0 1 0 0 0 P1 P0 I/D I/D . . . I/D I/D

NOTE: Any write or transfer to the Non−volatile Data Registers is followed by a high voltage cycle after a STOP has been issued.

Table 23. ORDERING INFORMATION

Orderable Part Number Resistance (kW)Lead Finish Package Shipping†

CAT5269WI−50−T1 50

Matte−Tin

SOIC

(Pb−Free) 1000 / Tape & Reel

CAT5269WI−00−T1 100

CAT5269YI−50−T2 50 TSSOP

(Pb−Free) 2000 / Tape & Reel

CAT5269YI−00−T2 100

CAT5269WI50 50 SOIC

(Pb−Free) 31 Units / Tube

CAT5269WI00 100

CAT5269YI50 50 TSSOP

(Pb−Free) 62 Units / Tube

CAT5269YI00 100

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

12.For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device

Nomenclature document, TND310/D, available at www.onsemi.com.

13.All packages are RoHS−compliant (Pb−Free, Halogen−Free).

14.The standard lead finish is Matte−Tin.

CAT5269

http://onsemi.com

PACKAGE DIMENSIONS

SOIC−24, 300 mils

CASE 751BK−01

ISSUE O

E1 E

PIN#1 IDENTIFICATION

TOP VIEW

SIDE VIEW END VIEW

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MS-013.

SYMBOL MIN NOM MAX

0º 8º

0.10

0.31

0.20

0.25

15.20

10.11

7.34

1.27 BSC

2.65

0.30

0.51

0.33

0.75

15.40

10.51

7.60

L0.40 1.27

2.35

A2 2.05 2.55

θ1 5º 15º

CAT5269

http://onsemi.com

PACKAGE DIMENSIONS

TSSOP24, 4.4x7.8

CASE 948AR−01

ISSUE A

θ1

TOP VIEW

SIDE VIEW END VIEW

E1 E

SYMBOL

MIN NOM MAX

0º 8º

0.05

0.80

0.19

0.09

0.50

7.70

6.25

4.30

0.65 BSC

1.00 REF

1.20

0.15

1.05

0.30

0.20

0.70

7.90

6.55

4.50

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MO-153.

0.60

7.80

6.40

4.40

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice

to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All

operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights

nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications

intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should

Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,

and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal

Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

PUBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5817−1050

CAT5269/D

LITERATURE FULFILLMENT:

Literature Distribution Center for ON Semiconductor

P.O. Box 5163, Denver, Colorado 80217 USA

Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada

Email: orderlit@onsemi.com

ON Semiconductor Website: www.onsemi.com

Order Literature: http://www.onsemi.com/orderlit

For additional information, please contact your local

Sales Representative