1 Features
• Operate from 1.65V to 3.6V
• Inputs accept voltages to 5.5V
• Maximum tpd of 4.6ns at 3.3V
• Typical VOLP (output ground bounce)
<0.8V at VCC = 3.3V, TA = 25°C
• Typical VOHV (output VOH undershoot)
>2V at VCC = 3.3V, TA = 25°C
• Latch-up performance exceeds 250mA per JESD
17
• ESD protection exceeds JESD 22
– 2000V human-body model (A114-A)
– 200V machine model (A115-A)
• On products compliant to MIL-PRF-38535, all
parameters are tested unless otherwise noted. On
all other products, production processing does not
necessarily include testing of all parameters.

2 Applications
• Cable Modem Termination Systems
• Tests and Measurements
• I/O Expanders
• Motor Drivers
• Network Switches
• Servers
• Telecom Infrastructure

3 Description
These quadruple 2-line to 1-line data selectors and
multiplexers are designed for 1.65V to 3.6V VCC
operation.
The SNx4LVC257A devices are designed to multiplex
signals from 4-bit data sources to 4-output data lines
in bus-organized systems. The 3-state outputs do not
load the data lines when the output-enable ( OE) input
is at a high logic level.
Inputs can be driven from either 3.3V or 5V devices.
This feature allows the use of these devices as
translators in a mixed 3.3V or 5V system
environment.