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DESCRIPTION

The SY10/100E156 offer three 4:1 multiplexers followed by latches with differential outputs, designed for use in new, high-performance ECL systems. The two external latch enable signals (LEN1 and LEN2) are gated through a logical OR operation before use as control for the three latches. When both LEN1 and LEN2 are at a logic LOW, the latches are transparent, thus presenting the data from the multiplexers at the output pins. If either LEN1 or LEN2 (or both) are at a logic HIGH, the outputs are latched.

FEATURES

■ 900ps max. D to output

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

■ 800ps max. LEN to output

■ Differential outputs

■ Asynchronous Master Reset

■ Dual latch enables

■ Fully compatible with industry standard 10KH, 100K ECL levels

■ Internal 75K? input pulldown resistors

■ Fully compatible with Motorola MC10E/100E156

■ Available in 28-pin PLCC package