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DESCRIPTION/ORDERING INFORMATION

SN74ALVCH32244

32-BIT BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCES281D – OCTOBER 1999 – REVISED SEPTEMBER 2004

•

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

•

Member of the Texas Instruments Widebus+™

Family

•

ESD Protection Exceeds JESD 22

•

Operates From 1.65 V to 3.6 V

– 2000-V Human-Body Model (A114-A)

•

– 200-V Machine Model (A115-A)

•

±24-mA Output Drive at 3.3 V

– 1000-V Charged-Device Model (C101)

•

Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

The SN74ALVCH32244 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.

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

SN74ALVCH32244KR

-40

°C to 85°C

Tape and reel

ACH244

LFBGA - ZKE (Pb-free)

74ALVCH32244ZKER

(1)

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

www.ti.com/sc/package.

FUNCTION TABLE

(each 4-bit buffer)

INPUTS

OUTPUT

Y

OE

A

L

H

H

L

L

L

H

X

Z

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 © 1999–2004, 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.