TL/F/9566
54F/74F573
Octal
D-Type
Latch
with
TRI-STATE
Outputs
August 1995
54F/74F573
Octal D-Type Latch with TRI-STATE Outputs
General Description
The ’F573 is a high speed octal latch with buffered common
Latch Enable (LE) and buffered common Output Enable
(OE) inputs.
This device is functionally identical to the ’F373 but has
different pinouts.
Features
Y
Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
Y
Useful as input or output port for microprocessors
Y
Functionally identical to ’F373
Y
TRI-STATE outputs for bus interfacing
Y
Guaranteed 4000V minimum ESD protection
Commercial Military
Package
Package Description
Number
74F573PC N20A 20-Lead (0.300 Wide) Molded Dual-In-Line
54F573DM (Note 2) J20A 20-Lead Ceramic Dual-In-Line
74F573SC (Note 1) M20B 20-Lead (0.300 Wide) Molded Small Outline, JEDEC
74F573SJ (Note 1) M20D 20-Lead (0.300 Wide) Molded Small Outline, EIAJ
54F573FM (Note 2) W20A 20-Lead Cerpak
54F573LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Note 1: Devices also available in 13 reel. Use suffix e SCX and SJX.
Note 2: Military grade device with environmental and burn-in processing. Use suffix e DMQB, FMQB and LMQB.
Logic Symbols
TL/F/9566–1
IEEE/IEC
TL/F/9566–4
Connection Diagrams
Pin Assignment for
DIP, SOIC and Flatpak
TL/F/9566–2
Pin Assignment
for LCC
TL/F/9566–3
TRI-STATE is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.