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74F161ASC 데이터시트(PDF) 1 Page - Fairchild Semiconductor |
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74F161ASC 데이터시트(HTML) 1 Page - Fairchild Semiconductor |
1 / 11 page tm April 2007 ©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com 74F161A, 74F163A Rev. 1.0.2 74F161A, 74F163A Synchronous Presettable Binary Counter Features ■ Synchronous counting and loading ■ High-speed synchronous expansion ■ Typical count frequency of 120MHz General Description The 74F161A and 74F163A are high-speed synchro- nous modulo-16 binary counters. They are synchro- nously 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 74F161A has an asynchronous Master-Reset input that overrides all other inputs and forces the outputs LOW. The 74F163A has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simulta- neously reset on the rising edge of the clock. The 74F161A and 74F163A are high-speed versions of the 74F161 and 74F163. Ordering Information Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. Connection Diagrams Order Number Package Number Package Description 74F161ASC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 74F161ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F161APC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide 74F163ASC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 74F163ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F163APC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide 74F161A 74F163A |
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