September 1995
54ABT/74ABT373
Octal Transparent Latch with TRI-STATE Outputs
É
Guaranteed output skew
Y
General Description
The ’ABT373 consists of eight latches with TRI-STATE out-
Y
Guaranteed multiple output switching specifications
Y
Output switching specified for both 50 pF and 250 pF
puts for bus organized system applications. The flip-flops
loads
appear 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.
Y
Guaranteed simultaneous switching, noise level and
dynamic threshold performance
Y
Guaranteed latchup protection
Y
High impedance glitch free bus loading during entire
power up and power down
Y
Y
Nondestructive hot insertion capability
Features
Y
Standard Military Drawing (SMD) 5962-9321801
TRI-STATE outputs for bus interfacing
Y
Output sink capability of 64 mA, source capability of
32 mA
Package
Commercial
Military
Package Description
Number
M20B
M20D
N20B
74ABT373CSC (Note 1)
74ABT373CSJ (Note 1)
74ABT373CPC
20-Lead (0.300 Wide) Molded Small Outline, JEDEC
×
20-Lead (0.300 Wide) Molded Small Outline, EIAJ
×
20-Lead (0.300 Wide) Molded Dual-In-Line
×
54ABT373J/883
J20A
20-Lead Ceramic Dual-In-Line
74ABT373CMSA (Note 1)
MSA20 20-Lead Molded Shrink Small Outline, EIAJ Type II
54ABT373W/883 W20A
54ABT373E/883 E20A
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
74ABT373CMTC (Notes 1, 2)
MTC20 20-Lead Molded Thin Shrink Small Outline, JEDEC
e
Note 1: Devices also available in 13 reel. Use suffix
×
Note 2: Contact factory for package availability.
SCX, SJX, MSAX, and MTCX.
Connection Diagrams
Pin Assignment
for DIP, SOIC, SSOP and Flatpak
Pin Assignment
for LCC
Pin Names
Description
Data Inputs
D –D
0
7
LE
Latch Enable Input
(Active HIGH)
OE
Output Enable Input
(Active LOW)
O –O
0
TRI-STATE Latch
Outputs
7
TL/F/11547–2
TL/F/11547–1
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
TL/F/11547
RRD-B30M115/Printed in U. S. A.
NSC [ National Semiconductor ]
