SN74LVCZ32244A Datasheet, PDF (2/12 Pages) Texas Instruments – 32-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS

SN74LVCZ32244A
32-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES422 – JANUARY 2003 – REVISED JUNE 2005
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
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.
During power up or power down, when V_CC is between 0 and 1.5 V, the device is in the high-impedance state.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V_CC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for hot-insertion applications using I_off and power-up 3-state. The I_off circuitry
disables the outputs, preventing damaging current backflow through the device when it is powered down
(V_CC = 0 V). 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 4-BIT BUFFER)
INPUTS
OE
A
L
H
L
L
H
X
OUTPUT
Y
H
L
Z
2