54FCT573 Datasheet, PDF (1/7 Pages) National Semiconductor (TI) – Octal D-Type Latch with TRI-STATE Outputs

August 1998
54FCT573
Octal D-Type Latch with TRI-STATE^® Outputs
General Description
The ’FCT573 is an octal latch with buffered common Latch
Enable (LE) and buffered common Output Enable (OE) in-
puts.
This device is functionally identical to the ’FCT373 but has
different pinouts.
Features
n Inputs and outputs on opposite sides of package allow
easy interface with microprocessors
n Useful as input or output port for microprocessors
n TTL input and output level compatible
n CMOS power consumption
n Functionally identical to ’FCT373
n TRI-STATE outputs for bus interfacing
n Output sink capability of 32 mA, source capability of
12 mA
n Standard Microcircuit Drawing (SMD) 5962-8863901
Ordering Code
Military
54FCT573DMQB
54FCT573FMQB
54FCT573LMQB
Connection Diagram
Package
Number
J20A
W20A
E20A
Pin Assignment
for DIP and Cerpack
Package Description
20-Lead Ceramic Dual-In-Line
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Pin Assignment
for LCC
DS100951-1
Pin
Names
D₀– D₇
LE
OE
O₀– O₇
DS100951-39
Description
Data Inputs
Latch Enable Input (Active HIGH)
TRI-STATE Output Enable Input
(Active LOW)
TRI-STATE Latch Outputs
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS100951
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