DESCRIPTION
The SY10/100E337 are 3-bit registered bus transceivers with scan designed for use in new, high- performance ECL systems. The bus outputs (BUS0–BUS2) are designed to drive a 25Ω bus; the receive outputs (Q0–Q2) are designed for 50Ω. The bus outputs feature a normal logic HIGH level (VOH) and a cutoff LOW level of –2.0V and the output emitter-follower is “off”, presenting a high impedance to the bus. The bus outputs also feature edge slow-down capacitors.

FEATURES
■ 1500ps max. clock to bus (data transmit)
■ 1000ps max. clock to Q (data receive)
■ Extended 100E VEE range of –4.2V to –5.5V
■ 25Ω cutoff bus outputs
■ 50Ω receiver outputs
■ Scannable implementation of E336
■ Synchronous and asynchronous bus enables
■ Non-inverting data path
■ Bus outputs feature internal edge slow-down capacitors
■ Additional package ground pins
■ Fully compatible with industry standard 10KH, 100K ECL levels
■ Internal 75KΩ input pulldown resistors
■ Fully compatible with Motorola MC10E/100E337
■ Available in 28-pin PLCC package