SN74LVC257AQDRG4Q1

Series:	Automotive, AEC-Q100, 74LVC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multiplexer
Circuit:	4 x 2:1
Independent Circuits:	1
Current - Output High, Low:	24mA, 24mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	2 V ~ 3.6 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	74LVC257

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The SN74LVC257AQDRG4Q1 gate is part of the family of the LVC(Low Voltage CMOS), an advanced low power Schmitt trigger-input CMOS devices. As part of the Logic - Signal Switches, Multiplexers, Decoders, the SN74LVC257AQDRG4Q1 (hereafter referred as LVC257A) serves as a multiplexer (mux) or 2-to-4 demultiplexer (demux).The LVC257A is used in circuits to provide the function of selecting one-of-four signal paths under the control of two select inputs in a fast and economical way. The output sequences depend on the select conditions of the two inputs, S0 and S1. Data is entered through 4 data inputs (A-D) with one of the four outputs (Y0-Y3) selected by the S0 and S1 inputs. The Y output will be equal to the A, B, C or D input depending on the select conditions of S0 and S1.The LVC257A operates from a 1.65V VCC (Minimum) to 3.6V (Maximum) supply voltage. Since it is LVC, it consumes very little power, guaranteeing medium to long usage life and a low power system. In addition, the TTL-CMOS input logic accepts voltages from 1.4V to 15V, allowing a good compatibility with standard logic ICs.In terms of operation speed the LVC257A has two different versions. The ‘Q’ version has a maximum propagation delay of 7.9ns while the \'C’ version has a maximum propagation delay of 10.6ns. This is a very important step in terms of modern day circuitry since the circuit is able to respond almost instantaneously with a minimally amount of power used.The LVC257A has also immunity to noise due to its Schmitt Trigger input. This allows the input signals to be very low even in an environment with large voltage spikes while at the same time keeping the input logic low with a pull down resistor. This immunity to noise allows the circuit to be immune to external influences, not having its logic affected by their surroundings.Lastly, the LVC257A has a wide temperature range of operation, from -40°C to +85°C. This is a feature that is not seen in a lot of contemporary ICs in the market being a feature only found in high-end but expensive ICs. This temperature range allows the LVC257A to work in very rigid environments with no effect in its performance.Due to its features the LVC257A is a very popular IC for a variety of applications, from automotive to telecommunication systems. The low power consumption, high speed and high temperature operation help to make it a very reliable IC in a variety of platform applications, being used in multiplexers, demultiplexers, address decoders and even microwave systems.In conclusion, the SN74LVC257AQDRG4Q1 is an advanced Low Voltage CMOS that provides high-speed, low-power, and temperature-resistant signals and multiplexing capabilities. It\'s two select inputs allow for four data outputs with fast propagation delays and Schmitt Trigger input for low voltage logic and noise immunity. This makes it a perfect choice for a variety of applications in both the automotive and telecommunication industries.

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