* synchronous counting and asynchronous presetting. The preset feature allows the AC191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, stat
74AC191
Fairchild Semiconductor
139.27 KB
Up/down counter.
74AC191 Up/Down Counter with Preset and Ripple Clock November 1988 Revised November 1999 74AC191 Up/Down Counter with Preset and Ripple Clock Genera.
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