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TECHNICAL DATA
IN74HC192A
Presettable BCD/Decade UP/DOWN Counter
High-Performance Silicon-Gate CMOS
The IN74HC192A is identical in pinout to the LS/ALS192. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The counter has two separate clock inputs, a Count Up Clock and Count Down Clock inputs. The direction of counting is determined by which input is clocked. The outputs change state synchronous with the LOW-to-HIGH transitions on the clock inputs. This counter may be preset by entering the desired data on the P0, P1, P2, P3 input. When the Parallel Load input is taken low the data is loaded independently of either clock input.
IN74HC192A Datasheet
