74HC40103 8-bit synchronous binary down counter Rev.
5 — 21 April 2016 Product data sheet 1.
General description The 74HC40103 is an 8-bit synchronous down counter.
It has control inputs for enabling or disabling the clock (CP), for clearing the counter to its maximum count and for presetting the counter either synchronously or asynchronously.
In normal operation, the counter is decremented by one count on each positive-going transition of the clock (CP).
Counting is inhibited when the terminal enable input (TE) is HIGH.
The terminal count output (TC) goes LOW when the count reaches zero if TE is LOW, and remains LOW for one full clock period.
When the synchronous preset enable input (PE) ...

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