74HCT163

Features:

* Synchronous counting and loading
* Two count enable inputs for n-bit cascading
* Positive-edge triggered clock
* Synchronous reset
* Output capability: standard
* ICC category: MSI


Pinout




Description

The 74HCT163 is high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HCT163 is synchronous presettable binary counters which feature an internal look-ahead carry and can be used for high-speed counting. 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 of the 74HCT163 may be preset to a HIGH or LOW level. A LOW level at the parallel enable input (PE) disables the counting action and causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock (providing that the set-up and hold time requirements forPE are met).