SN74LS157NG4

Series:	74LS
Packaging:	Tube
Part Status:	Active
Type:	Multiplexer
Circuit:	4 x 2:1
Independent Circuits:	1
Current - Output High, Low:	400µA, 8mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	74LS157

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Logic - Signal Switches, Multiplexers, DecodersThe SN74LS157NG4 is an integrated circuit (IC) that is categorized as a logic device. It is a quadruple 2-line to 1-line data selectors, flip-flop output data selectors, also known as multiplexers. This IC takes in two inputs, A and B, and selects either of them as the output depending upon the logic states of select inputs labeled S0 and S1. Such multiplexers are usually used for transmission of data of two lines to a single line.The SN74LS157NG4 is designed for use in data communications systems, high-speed memory systems, or other applications that require fast switching between multiple data sources. It features an advanced Schottky TTL circuit that is fast and energy-efficient. The high-speed, low-power operation of the SN74MS157NG4 makes it ideal for these applications.The SN74MS157NG4 has low-power logic signaling and low-power Schottky logic operation, which are critical to the implementation of logic devices and multiplexers. It has a maximum operating frequency of 45 MHz and can be used with both TTL and CMOS circuits. The maximum power dissipation rating is 2.5W.The SN74MS157NG4 IC works by having two on-chip flip-flops that are connected to two multiplexer input lines, A and B. Two select signals, namely S0 and S1, from the logic device decide which of the two inputs, A or B, will be selected for output. If the select input signals, S0 and S1, are in the same logical state, such as both HIGH (1) or both LOW (0), the data from the A line is selected. If the select signals S0 and S1 are in different logical states, such as one HIGH (1) and one LOW (0), the data from the B line is selected.In summary, the SN74MS157NG4 is an IC that works as a data selector, or multiplexer, for high-speed communication or memory systems. It is designed for use with both TTL and CMOS circuits and features low power signal transmission and consumption as well as high-speed data selection. This IC is also highly reliable due to its advanced Schottky TTL circuit.

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