191 counters

Presettable Synchronous 4-Bit Binary Up/Down Counters

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191 Counters

74F191

5V Presettable Synchronous 4-Bit Binary Up/Down Counter with Reset and Ripple Clock

74HC191

5V Presettable Synchronous 4-Bit Binary Up/Down Counter

74HCT191

5V Presettable Synchronous 4-Bit Binary Up/Down Counter; TTL Enabled

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