54F 74F169 4-Stage Synchronous Bidirectional Counter
November 1994
54F 74F169
4-Stage Synchronous Bidirectional Counter
General Description
The 鈥橣169 is a fully synchronous 4-stage up down counter
The 鈥橣169 is a modulo-16 binary counter Features a preset
capability for programmable operation carry lookahead for
easy cascading and a U D input to control the direction of
counting All state changes whether in counting or parallel
loading are initiated by the LOW-to-HIGH transition of the
clock
Features
Y
Y
Y
Asynchronous counting and loading
Built-in lookahead carry capability
Presettable for programmable operation
Commercial
74F169PC
Military
Package
Number
N16E
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
54F169DM (Note 2)
74F169SC (Note 1)
74F169SJ (Note 1)
J16A
M16A
M16D
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
Logic Symbols
IEEE IEC
鈥橣169
TL F 9488 鈥?3
TL F 9488 鈥?9
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9488
RRD-B30M75 Printed in U S A