General Description

The LVX163 is a synchronous modulo-16 binary counter. This device is synchronously presettable for application in programmable dividers and has two types of Count Enable inputs plus a Terminal Count output for versatility in forming multistage counters. The CLK input is active on the rising edge. Both PE and MR inputs are active on low logic lev els. Presetting is synchronous to rising edge of the CLK and the Clear function of the LVX163 is synchronous to the CLK. Two enable inputs (CEP and CET) and Carry Output are provided to enable easy cascading of counters, which facilitates easy implementation of n-bit counters without using external gates.

The inputs tolerate voltages up to 7V allowing the interface of 5V systems to 3V systems.

Features

■ Input voltage level translation from 5V to 3V

■ Ideal for low power/low noise 3.3V applications

■ Guaranteed simultaneous switching noise and dynamic

threshold performance