CD74HCT257MG4 Allicdata Electronics
Allicdata Part #:

CD74HCT257MG4-ND

Manufacturer Part#:

CD74HCT257MG4

Price: $ 0.27
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC QUAD 2 INPUT MUX 3ST 16SOIC
More Detail: Multiplexer 4 x 2:1 16-SOIC
DataSheet: CD74HCT257MG4 datasheetCD74HCT257MG4 Datasheet/PDF
Quantity: 1000
1080 +: $ 0.23890
Stock 1000Can Ship Immediately
$ 0.27
Specifications
Series: 74HCT
Packaging: Tube 
Part Status: Active
Type: Multiplexer
Circuit: 4 x 2:1
Independent Circuits: 1
Current - Output High, Low: 6mA, 6mA
Voltage Supply Source: Single Supply
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -55°C ~ 125°C
Mounting Type: Surface Mount
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 16-SOIC
Base Part Number: 74HCT257
Description

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The CD74HC257MG4 is a high speed, high performance CMOS logic circuit device with Quad 2-Line to 1-Line Data Selector/Multiplexer with Common Output. It is part of a family of logic - signal switches, multiplexers and decoders made by Texas Instruments. The device is designed to be used in a range of applications, including analog - to - digital conversion, digital signal processing and communication systems. In addition, it offers an economical and robust design with an extended temperature range, low voltage operation and low power consumption.

The CD74HC257MG4 consists of four 2-to-1 multiplexers with a common output pin. Each multiplexer can be selected individually using the corresponding S0, S1, S2 and S3 select lines of the device. To select any particular source from the inputs, the appropriate select lines must be set high. The device also has an enable line (EN) which must be set high for normal operation.

The logic circuit at the center of the CD74HC257MG4 is an AND gate. The inputs of the AND gate are the four select lines, S0, S1, S2, and S3. Depending on the logic state of the select lines, the AND gate forwards the output of a different multiplexer to the common output line. If more than one select line is set high, the device is disabled and the output will be low.

The CD74HC257MG4 also includes inhibit latches that temporarily prevent data transfer when the enable line (EN) is set low. The device allows four-way access to the output port, and can be used in systems where quick switching of input signals is important. The device can be connected to an 8-bit bus and so can be used to select four-bit data from a variety of sources.

The CD74HC257MG4 has an extended temperature range of -40 to +85°C and can operate at voltage levels of 2.0 to 5.5V. The device offers low power consumption and high performance in noisy environments. The device has X3 and X4 pins which can be connected to the ground pin of the device to set the logic level of the output.

The CD74HC257MG4 is a useful device for performing selection and multiplexing tasks in a wide range of applications. Its high speed operation, extended temperature range and low voltage operation make it an ideal choice for digital systems and communication designs. Aside from the applications mentioned earlier, the device can be used for high speed data transmission, digital signal processing, video signal routing and control systems.

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