DESCRIPTION

The SY10/100E336 offer three bus transceivers with both transmit and receive registers and are designed for use in new, high-performance ECL systems. The bus outputs (BUS0 - BUS2) are designed to drive a 25? bus. The receive outputs (Q0 – Q2) are specified for 50?. The bus outputs feature a normal logic HIGH level (VOH) and a cutoff LOW level when at a logic LOW. At cutoff, the outputs go to –2.0V and the output emitter-follower is “off”, presenting a high impedance to the bus. The bus outputs have edge slow-down capacitors.

FEATURES

■ 25? cutoff bus output

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

■ 50? receiver output

■ Transmit and receive registers

■ 1500ps max. clock to bus

■ 1000ps max. clock to Q

■ Internal edge slow-down capacitors on bus outputs

■ Additional package ground pins

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

■ Internal 75K? input pulldown resistors

■ Fully compatible with Motorola MC10E/100E336

■ Available in 28-pin PLCC package