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74F190 Datasheet

  • 74F190

  • Up/Down Decade Counter with Preset and Ripple Clock

  • 68.99KB

  • 7頁

  • FAIRCHILD

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74F190 Up/Down Decade Counter with Preset and Ripple Clock
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鈥?25 MHz typical count frequency
s
Synchronous counting
s
Asynchronous parallel load
s
Cascadable
Ordering Code:
Order Number
74F190SC
74F190PC
Package Number
M16A
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
漏 1999 Fairchild Semiconductor Corporation
DS009494
www.fairchildsemi.com

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