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Contextual Info: T e c h n ic a l D a ta CD54/74HC190, CD54/74HCT190 CD54/74HC191, CD54/74HCT191 File N um ber T exas In s t r u m e n t s High-Speed CMOS Logic B C0/8IN A RY PRESET 151 CLOCK - 14 UP/DOWN COUNT ENABLE 11 101 Si 11 S 4 Data sheet acquired from Harris Semiconductor

74hc191

Contextual Info: Technical Data CD54/74HC190, CD54/74HCT190 CD54/74HC191, CD54/74HCT191 File N um ber 1662 Texas In st r u m e n t s High-Speed CMOS Logic BCO/BINARY PRESET Presettable Synchronous 4-Bit Up/Down Counters 'PO P1 P2 P3' 1SÍ 1M01 9\ ASYN, PARALLEL LOAO ENABLE