74F190 Datasheet, PDF (1/7 Pages) Fairchild Semiconductor – 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—125 MHz typical count frequency
s Synchronous counting
s Asynchronous parallel load
s Cascadable
Ordering Code:
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
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS009494
www.fairchildsemi.com