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74F190 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74F190 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 7 page © 1999 Fairchild Semiconductor Corporation DS009494 www.fairchildsemi.com April 1988 Revised July 1999 74F190 Up/Down Decade Counter with Preset and Ripple Clock General Description The 74F190 is a reversible BCD (8421) decade counter featuring synchronous counting and asynchronous preset- ting. The preset feature allows the 74F190 to be used in programmable dividers. The Count Enable input, the Termi- nal Count output and the Ripple Clock output make possi- ble a variety of methods of implementing multistage counters. In the counting modes, state changes are initi- ated by the rising edge of the clock. Features s High-speed—125 MHz typical count frequency s Synchronous counting s Asynchronous parallel load s Cascadable Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC Connection Diagram Order Number Package Number Package Description 74F190SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74F190PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide |
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