74HC193 Datasheet (NXP) - Presettable synchronous 4-bit binary up/down counter

74HC193, Presettable synchronous 4-bit binary up/down counter

The 74HC193; 74HCT193 is a 4-bit synchronous binary up/down counter.

Separate up/down clocks, CPU and CPD respectively, simplify operation.

The outputs change state synchronously with the LOW-to-HIGH transition of either clock input.

If the CPU clock is pulsed while CPD is held HIGH, the device will

74HC193 Features

* Input levels:

* For 74HC193: CMOS level

* For 74HCT193: TTL level

* Synchronous reversible 4-bit binary counting

* Asynchronous parallel load

* Asynchronous reset

* Expandable without external logic

* Complies with JEDEC standard no. 7A

* ESD protection:

* H