FN6624 Rev 1.00

Page 1 of 3

November 11, 2011

FN6624

Rev 1.00

November 11, 2011

ISL22346WM

Quad Digitally Controlled Potentiometers (XDCP™) Low Noise, Low Power I2C

Bus, 128 Taps

DATASHEET

The ISL22346WMVEP integrates four digitally controlled

potentiometers (DCP) and non-volatile memory on a

monolithic CMOS integrated circuit.

The digitally controlled potentiometers are implemented with

a combination of resistor elements and CMOS switches. The

position of the wipers are controlled by the user through the

I2C bus interface. Each potentiometer has an associated

volatile Wiper Register (WR) and a non-volatile Initial Value

Register (IVR) that can be directly written to and read by the

user. The contents of the WR controls the position of the

wiper. At power-up, the device recalls the contents of the two

DCP’s IVR to the corresponding WRs.

The DCPs can be used as a three-terminal potentiometers

or as a two-terminal variable resistors in a wide variety of

applications including control, parameter adjustments and

signal processing.

Device Information

The specifications for an Enhanced Product (EP) device are

defined in a Vendor Item Drawing (VID), which is controlled

by the Defense Logistics Agency (DLA). “Hot-links” to the

applicable VID and other supporting application information

are provided on our website.

Pinout

Features

• Specifications per DSCC VID V62/08605-01XE

• Full Mil-Temp Electrical Performance from -55°C to +125°C

• Controlled Baseline with One Wafer Fabrication Site and

One Assembly/Test Site

• Full Homogeneous Lot Processing in Wafer Fab

• No Combination of Wafer Fabrication Lots in Assembly

• Full Traceability Through Assembly and Test by

Date/Trace Code Assignment

• Enhanced Process Change Notification

• Enhanced Obsolescence Management

• Eliminates Need for Up-Screening a COTS Component

• Four Potentiometers in One Package

•128 Resistor Taps

•I2C Serial Interface

- Three Address Pins, Up To Eight Devices/Bus

• Non-volatile Storage of Wiper Position

• Wiper Resistance: 70

 Typical @ 3.3V

• Shutdown Mode

• Shutdown Current 5µA Max

• Power Supply: 2.7V to 5.5V

•10k

 Total Resistance

• High Reliability

- Endurance: 1,000,000 Data Changes Per Bit Per

Register

- Register Data Retention:

- 10 years @ T

+125°C

- 15 years @ T

 +90°C

- 50 years @ T

+55°C

• 20 Ld TSSOP

ISL22346WMVEP

(20 LD TSSOP)

TOP VIEW

RW0

RL0

RH0

SHDN

VCC

A1

A0

RH1

RL1

RW1

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

RH3

RL3

RW3

A2

SCL

SDA

GND

RW2

RL2

RH2

Ordering Information

VENDOR PART NUMBER

(Notes 1, 2)

VENDOR ITEM DRAWING PART MARKING

RESISTANCE OPTION

(k

)

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

ISL22346WMVEP

V62/08605-01XE

22346 WMVEP

10

-55 to +125

20 Ld TSSOP M20.173

NOTES:

1. Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. Devices must be procured to the VENDOR PART NUMBER.