74HC163; 74HCT163 Presettable synchronous 4-bit binary counter; synchronous reset Rev.
5 — 12 October 2018 Product data sheet 1.
General description The 74HC163; 74HCT163 is a synchronous presettable binary counter with an internal look-head carry.
Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (CP).
The outputs (Q0 to Q3) of the counters may be preset to a HIGH or LOW.
A LOW at the parallel enable input (PE) disables the counting action.
It causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock.
Preset takes place regardless of the levels at count enab...

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