SN54157

The SN54157 is a kind of monolithic data selector/multiplexer which contains inverters and drivers to supply full on-chip data selection to the four output gates.A separate strobe inputs is provided. A 4-bit word is selected from one of two sources and is rounted to the four outputs.

Features of of the SN54157 are:(1)expand any data input point; (2)multi[lex dual data buses; (3)generate four functions of two variables(one variable is common); (4)source programmable counters.

The absolute maximum ratings of the SN54157 can be summarized as:(1): supply voltage, vcc is 7 V ; (2): input voltage is 5.5 V; (3): storage temperature range is -65 to 150;(4): operating free-air temeprature range is -55 to 125.