General description
The CBT3257A is a quad 1-of-2 high-speed TTL-compatible multiplexer/demultiplexer. The low ON-state resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise.
Output enable (OE) and select-control (S) inputs select the appropriate nB1 and nB2 outputs for the nA input data. The CBT3257A is characterized for operation from−40°Cto+85°C.

Features
■5Ωswitch connection between two ports
■TTL-compatible input levels
■Minimal propagation delay through the switch
■ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
■Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA