54ABT373 Datasheet, PDF (1/14 Pages) National Semiconductor (TI) – Octal Transparent Latch with TRI-STATE Outputs

July 1998
54ABT373
Octal Transparent Latch with TRI-STATE^® Outputs
General Description
The ’ABT373 consists of eight latches with TRI-STATE out-
puts for bus organized system applications. The flip-flops ap-
pear transparent to the data when Latch Enable (LE) is
HIGH. When LE is LOW, the data that meets the setup times
is latched. Data appears on the bus when the Output Enable
(OE) is LOW. When OE is HIGH the bus output is in the high
impedance state.
Features
n TRI-STATE outputs for bus interfacing
n Output sink capability of 48 mA, source capability of
24 mA
n Guaranteed multiple output switching specifications
n Output switching specified for both 50 pF and 250 pF
loads
n Guaranteed simultaneous switching, noise level and
dynamic threshold performance
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) 5962-9321801
Ordering Code
Military
54ABT373J-QML
54ABT373W-QML
54ABT373E-QML
Package Number
J20A
W20A
E20A
Connection Diagrams
Package Description
20-Lead Ceramic Dual-In-Line
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Pin Assignment
for DIP and Flatpak
Pin Assignment
for LCC
DS100206-1
Pin Names
D₀– D₇
LE
OE
O₀– O₇
Description
Data Inputs
Latch Enable Input
(Active HIGH)
Output Enable Input
(Active LOW)
TRI-STATE Latch
Outputs
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100206
DS100206-2
www.national.com