 Semiconductor Components Industries, LLC, 2013

July, 2013 − Rev. 15

1

Publication Order Number:

CAT5409/D

CAT5409

Quad Digital

Potentiometer (POT)

with 64 Taps

Description

The CAT5409 is four digital POTs integrated with control logic and

16 bytes of NVRAM memory.

A separate 6-bit control register (WCR) independently controls the

wiper tap position for each digital POT. Associated with each wiper

control register are four 6-bit non-volatile memory data registers (DR)

used for storing up to four wiper settings. Writing to the wiper control

On power-up, the contents of the first data register (DR0) for each of

the four potentiometers is automatically loaded into its respective

wiper control register (WCR).

The Write Protection (WP) pin protects against inadvertent

programming of the data register.

The CAT5409 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.

Features

Compliant

http://onsemi.com

TSSOP24

Y SUFFIX

CASE 948AR

PIN CONNECTIONS

SOIC−24 (W)

(Top View)

WP

SDA

1

SOIC−24

W SUFFIX

CASE 751BK

See detailed ordering and shipping information in the package

dimensions section on page 13 of this data sheet.

ORDERING INFORMATION

NC

GND

NC

CAT5409

NC

SCL

TSSOP−24 (Y)

(Top View)

CAT5409

NC

NC

SCL

NC

WP

SDA

GND

1