DESCRIPTION

The SY10/100E136 are 6-bit synchronous, presettable, cascadable universal counters. These devices generate a look-ahead-carry output and accept a look-ahead-carry input. These two features allow for the cascading of multiple E136s for wider bit width counters that operate at very nearly the same frequency as the stand-alone counter.

FEATURES

■ 550MHz count frequency

■ Extended 100E VEE range of –4.2V to –5.5V

■ Look-ahead-carry input and output

■ Fully synchronous up and down counting

■ Asynchronous Master Reset

■ Internal 75KΩ input pull-down resistors

■ Available in 28-pin PLCC package