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DESCRIPTION/ORDERING INFORMATION

SN74LVCH32244A

32-BIT BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCAS617E – OCTOBER 1998 – REVISED MARCH 2005

•

Supports Mixed-Mode Signal Operation on

All Ports (5-V Input/Output Voltage With

•

Member of the Texas Instruments Widebus+™

Family

•

Bus Hold on Data Inputs Eliminates the Need

•

Operates From 1.65 V to 3.6 V

for External Pullup/Pulldown Resistors

•

Inputs Accept Voltages to 5.5 V

•

Latch-Up Performance Exceeds 100 mA Per

•

JESD 78, Class II

•

•

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

•

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

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Operation

The SN74LVCH32244A is designed specifically to improve the performance and density of 3-state memory

address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device can be used as eight 4-bit buffers, four 8-bit buffers, two 16-bit buffers, or one 32-bit buffer. It

provides true outputs and symmetrical active-low output-enable (OE) inputs.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators

in a mixed 3.3-V/5-V system environment.

preventing damaging current backflow through the device when it is powered down.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

LFBGA – GKE

SN74LVCH32244AGKER

–40

°C to 85°C

Tape and reel

CH244A

LFBGA – ZKE (Pb-free)

SN74LVCH32244AZKER

(1)

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

www.ti.com/sc/package.

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.

Widebus+ is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 1998–2005, 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.