
74HC191
74HC191 (4-Bit Counter)
EGP 10
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The 74HC191 are asynchronously presettable 4-bit binary up/down counters. They contain four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation. Specifications Synchronous reversible counting Asynchronous parallel load Count enable control for synchronous expansion Single up/down control input Output capability: standard 74HC191 datasheet
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