1

®

FN6424.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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All other trademarks mentioned are the property of their respective owners.

ISL22414

Single Digitally Controlled Potentiometer (XDCP™)

The ISL22414 integrates a single digitally controlled

potentiometer (DCP), control logic and non-volatile memory

on a monolithic CMOS integrated circuit.

The digitally controlled potentiometer is implemented with a

combination of resistor elements and CMOS switches. The

position of the wiper is controlled by the user through the SPI

serial interface. The 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 control the position of the

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

DCP’s IVR to the WR.

The ISL22414 also has 14 General Purpose non-volatile

registers that can be used as storage of lookup table for

multiple wiper position or any other valuable information.

The ISL22414 features a dual supply that is beneficial for

applications requiring a bipolar range for DCP terminals

between V- and VCC.

The DCP can be used as three-terminal potentiometer or as

two-terminal variable resistor in a wide variety of applications

including control, parameter adjustments, and signal

processing.

Features

• 256 resistor taps

• SPI serial interface with write/read capability

• Daisy Chain Configuration

• Shutdown mode

• Non-volatile EEPROM storage of wiper position

• 14 General Purpose non-volatile registers

• High reliability

- Endurance: 1,000,000 data changes per bit per register

- Register data retention: 50 years @ T

≤ +55°C

• Wiper resistance: 70

Ω typical @ 1mA

• Standby current <2.5µA max

• Shutdown current <2.5µA max

• Dual power supply

- VCC = 2.25V to 5.5V

- V- = -2.25V to -5.5V

•10k

Ω, 50kΩ or 100kΩ total resistance

• Extended industrial temperature range: -40°C to +125°C

• Military temperature range: -55 to +125°C

• 10 Lead MSOP

• Pb-free (RoHS compliant)

Pinout

ISL22414

(10 LD MSOP)

TOP VIEW

1

2

3

4

5

6

10

9

8

7

SDO

V-

CS

SDI

Vcc

SCK

GND

RL

RW

RH

O

Ordering Information

PART NUMBER

(NOTES 1, 2)

PART

MARKING

RESISTANCE OPTION

(k

Ω)

TEMP. RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL22414TFU10Z

414TZ

100

-40 to +125

10 Ld MSOP

M10.118

ISL22414UFU10Z

414UZ

50

-40 to +125

10 Ld MSOP

M10.118

ISL22414WFU10Z

414WZ

10

-40 to +125

10 Ld MSOP

M10.118

ISL22414WMU10Z

414WM

10

-55 to +125

10 Ld MSOP

M10.118

NOTES:

1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte

tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil

Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-

020.

2. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

Data Sheet

December 16, 2010