DESCRIPTION

The SY10/100E137 are very high speed binary ripple counters. The two least significant bits were designed with very fast edge rates, while the more significant bits maintain standard ECLinPS output edge rates. This allows the counters to operate at very high frequencies, while maintaining a moderate power dissipation level.

The devices are ideally suited for multiple frequency clock generation, as well as for counters in high performance ATE time measurement boards.

FEATURES

■ 1.8GHz min. count frequency

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

■ Synchronous and asynchronous enable pins

■ Differential clock input and data output pins

■ VBB output for single-ended use

■ Asynchronous Master Reset

■ Internal 75KΩ input pull-down resistors

■ Available in 28-pin PLCC packge