www.ti.com

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

SN74LVCZ32245A

32-BIT BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES423 – JANUARY 2003 – REVISED JUNE 2005

This device can be used as four 8-bit transceivers, two 16-bit transceivers, or one 32-bit transceiver. It allows

data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses

effectively are isolated.

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.

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 device when it is 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.

FUNCTION TABLE

(EACH 8-BIT SECTION)

INPUTS

OPERATION

OE

DIR

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

2