74F161A Datasheet | National Semiconductor

Description The ’F161A and ’F163A are high-speed synchronous modulo-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 ’F161A has an asynchronous Master-Reset input that overrides all other inputs and forces the outputs LOW The ’F163A 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 ’F161A and ’F163A are high-speed versions of the ’F161 and ’F163 Features Y Synchronous counting and loading Y High-speed synchronous expansion Y Typical count frequency of 120 MHz Y Guaranteed 4000V minimum ESD protection mercial Military Package Number Package Description 74F161APC N16E 16-Lead (0 300 Wide) Molded Dual-In-Line 54F161ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line 74F161ASC (Note 1) M16A 16-Lead (0 150 Wide) Molded Small Outline JEDEC 74F161ASJ (Note 1) M16D 16-Lead (0 300 Wide) Molded Small Outline EIAJ 54F161AFM (Note 2) W16A 16-Lead Cerpack 54F161ALM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier Type C 74F163APC N16E 16-Lead (0 300 Wide) Molded Dual-In-Line 54F163ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line 74F163ASC (Note 1) M16A 16-Lead (0 150 Wide) Molded Small Outline JEDEC 74F163ASJ (Note 1) M16D 16-Lead (0 300 Wide) Molded Small Outline EIAJ 54F163AFM (Note 2) W16A 16-Lead Cerpack 54F163ALM (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 Connection Diagrams Pin Assignment for DIP SOIC and...