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TCA5405

www.ti.com

SCPS228

– MARCH 2011

Low Voltage 5-Bit Self-Timed, Single-Wire Output Expander

Check for Samples: TCA5405

1

FEATURES

RUG PACKAGE

•

Operating Power-Supply Voltage Range of 1.65

(TOP VIEW)

V to 3.6 V

•

Five Independent Push-Pull Outputs

•

Single Input (DIN) Controls State of All

Outputs

•

High-Current Drive Outputs Maximum

Capability for Directly Driving LEDs

•

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

•

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

PIN #

NAME

COMMENTS

– 1000-V Charged-Device Model (C101)

1

VCC

Supply Voltage

2

DIN

Data Input

APPLICATIONS

3

GND

Ground

•

Cell Phones

4

Q0

GPO

•

PDAs

5

Q1

GPO

6

Q2

GPO

•

Portable Media Players

7

Q3

GPO

•

MP3 Players

8

Q4

GPO

•

Portable Instrumentation

DESCRIPTION

The TCA5405 is a 5-bit output expander controlled using a single wire input. This device is ideal for portable

applications as it has a wide VCC range of 1.65V to 3.6 V. The TCA5405 uses a self-timed serial data protocol

with a single data input driven by a master device synchronized to an internal clock of that device. During a

Setup phase, the bit period is sampled, then the TCA5405 generates its own internal clock synchronized to that

of the Master device to sample the input over a five-bit-period Data Transfer phase and writes the bit states on

the parallel outputs after the last bit is sampled. The TCA5405 is available in an 8-pin 1.5mm x 1.5mm RUG

uQFN package.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

–40°C to 85°C

uQFN

– RUG

Tape and Reel

TCA5405RUGR

6Y

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.