54F 74F161A
54F 74F163A Synchronous Presettable Binary Counter
November 1994
54F 74F161A
54F 74F163A
Synchronous Presettable Binary Counter
General Description
The 鈥橣161A and 鈥橣163A are high-speed synchronous modu-
lo-16 binary counters They are synchronously presettable
for application in programmable dividers and have two types
of Count Enable inputs plus a Terminal Count output for
versatility in forming synchronous multi-stage counters The
鈥橣161A has an asynchronous Master-Reset input that over-
rides all other inputs and forces the outputs LOW The
鈥橣163A has a Synchronous Reset input that overrides
counting and parallel loading and allows the outputs to be
simultaneously reset on the rising edge of the clock The
鈥橣161A and 鈥橣163A are high-speed versions of the 鈥橣161
and 鈥橣163
Features
Y
Y
Y
Y
Synchronous counting and loading
High-speed synchronous expansion
Typical count frequency of 120 MHz
Guaranteed 4000V minimum ESD protection
Commercial
74F161APC
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
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
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
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F161ADM (Note 2)
74F161ASC (Note 1)
74F161ASJ (Note 1)
54F161AFM (Note 2)
54F161ALM (Note 2)
74F163APC
54F163ADM (Note 2)
74F163ASC (Note 1)
74F163ASJ (Note 1)
54F163AFM (Note 2)
54F163ALM (Note 2)
J16A
M16A
M16D
W16A
E20A
N16E
J16A
M16A
M16D
W16A
E20A
Note 1
Devices also available in 13
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
reel Use suffix
e
SCX and SJX
Connection Diagrams
Pin Assignment
for DIP SOIC and Flatpak
鈥橣161A
Pin Assignment
for LCC
鈥橣161A
Pin Assignment
for DIP SOIC and Flatpak
鈥橣163A
Pin Assignment
for LCC
鈥橣163A
TL F 9486鈥?1
TL F 9486 鈥?2
TL F 9486 鈥?7
TL F 9486 鈥?8
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9486
RRD-B30M75 Printed in U S A