54ABT573 Octal D-Type Latch with TRI-STATE Outputs
July 1998
54ABT573
Octal D-Type Latch with TRI-STATE
®
Outputs
General Description
The ’ABT573 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 ’ABT373 but has
different pinouts.
n
Functionally identical to ’ABT373
n
TRI-STATE outputs for bus interfacing
n
Output sink capability of 48 mA, source capability of
24 mA
n
Output switching specified for both 50 pF and 250 pF
loads
n
Guaranteed latchup protection
n
High impedance glitch-free bus loading during entire
power up and power down
n
Nondestructive hot insertion capability
n
Standard Microcircuit Drawing (SMD) 5962-9321901
Features
n
Inputs and outputs on opposite sides of package allow
easy interface with microprocessors
n
Useful as input or output port for microprocessors
Ordering Code
Military
54ABT573J-QML
54ABT573W-QML
54ABT573E-QML
Package
Number
J20A
W20A
E20A
20-Lead Ceramic Dual-In-Line
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Package Description
Connection Diagram
Pin Assignment
for DIP and Cerpack
Pin Assignment
for LCC
DS100219-39
DS100219-1
Pin
Names
D
0
–D
7
LE
OE
O
0
–O
7
Data Inputs
Description
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.
© 1998 National Semiconductor Corporation
DS100219
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
