54ACT573 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – Octal Latch with TRI-STATE Outputs

August 1998
54ACT573
Octal Latch with TRI-STATE^® Outputs
General Description
The ’ACT573 is a high-speed octal latch with buffered com-
mon Latch Enable (LE) and buffered common Output Enable
(OE) inputs.
The ’ACT573 is functionally identical to the ’ACT373 but has
inputs and outputs on opposite sides.
Features
n I_CC and I_OZ reduced by 50%
n Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
n Useful as input or output port for microprocessors
n Functionally identical to ’ACT373
n TRI-STATE outputs for bus interfacing
n Outputs source/sink 24 mA
n ’ACT573 has TTL-compatible inputs
n Standard Military Drawing (SMD)
— ’ACT573: 5962-87664
Logic Symbols
IEEE/IEC
DS100332-1
Pin Names
D₀– D₇
LE
OE
O₀– O₇
Description
Data Inputs
Latch Enable Input
TRI-STATE Output Enable Input
TRI-STATE Latch Outputs
DS100332-2
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
FACT^® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100332
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