SN54ALVTH32244, SN74ALVTH32244

2.5V/3.3V 32BIT BUFFERS/DRIVERS

WITH 3STATE OUTPUTS

SCES279 − SEPTEMBER 1999

1

POST OFFICE BOX 655303

Technology (ABT) Widebus

 Design for

2.5-V and 3.3-V Operation and Low Static

Power Dissipation

Input and Output Voltages With 2.3-V to

Insertion

External Pullup/Pulldown Resistors to

Prevent the Bus From Floating

NOTE: For tape and reel order entry:

The GKER package is abbreviated to KR.

Printed Circuit Board Layout

Minimizes High-Speed Switching Noise

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

− 1000-V Charged-Device Model (C101)

JESD 78, Class II

Array Package

description

the capability to provide a TTL interface to a 5-V system environment. These devices can be used as eight 4-bit

buffers, four 8-bit buffers, two 16-bit buffers, or one 32-bit buffer. These devices provide true outputs and

symmetrical active-low output-enable (OE) inputs.

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

disables the outputs, preventing damaging current backflow through the devices when they are powered down.

The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN54ALVTH32244 is characterized for operation over the full military temperature range of −55

°C to

125

°C. The SN74ALVTH32244 is characterized for operation from −40°C to 85°C.

FUNCTION TABLE

(each 4-bit buffer)

INPUTS

OUTPUT

OE

A

OUTPUT

Y

L

H

H

L

LL

H

X

Z

Copyright

 1999, Texas Instruments Incorporated

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information current as of publication date. Products conform to

specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all

parameters.

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 Incorporated.