MM54HC190 MM74HC190 MM54HC191 MM74HC191 January 1.
74HC190 - Synchronous Decade Up/Down Counters
CD74HC190 - Synchronous Up/Down Counters
HD74HC190 - Synchronous Up/Down Decade Counter
HD74HC190 - Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line)
MM74HC190 - Synchronous Decade Up/Down Counters
M74HC190 - 4 BIT SYNCHRONOUS UP/DOWN COUNTERS
74HC190 - Presettable synchronous BCD decade up/down counter
Hitachi Semiconductor
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