CD40257BNSR

Series:	4000B
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Multiplexer
Circuit:	4 x 1:2
Independent Circuits:	1
Current - Output High, Low:	6.8mA, 6.8mA
Voltage Supply Source:	Dual Supply
Voltage - Supply:	3 V ~ 18 V
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.209", 5.30mm Width)
Supplier Device Package:	16-SO
Base Part Number:	40257

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Introduction

The CD40257BNSR is a quad 2-input multiplexer with an enable. It is a member of the Texas Instruments\' family of logic signal switches, multiplexers, decoders, and programmable logic devices. This integrated circuit is comprised of four 2-input multiplexers arranged to select one of four inputs for output, with the enable signal controlling the selection process. This device is optimized for dynamic performance, power, and signal integrity applications.

Application Fields

The CD40257BNSR has a number of different applications. It can be used in signal routing, such as in multiplexers and digital signal processors. It can be used in digital data acquisition to improve performance, as well as in automated test systems. It is also common to use the device in analog signal processing applications such as amplifiers, voltage regulators, power supplies, and signal conditioning.

Working Principle

The working principle of the CD40257BNSR is straightforward and relies on the fact that the device is a quad 2-input multiplexer. The device has four multiplexer inputs (A0-A3), four data inputs (D0-D3), and an enable input (E). When the enable input is triggered, one of the four data inputs is selected for output. The combination of the enable input and the four multiplexer inputs determines which data input is selected for output. For example, if the enable input is triggered and the multiplexer inputs are set to A0, then D0 will be selected for output.

Conclusion

In conclusion, the CD40257BNSR is a useful device for a number of applications. Its performance in power and signal integrity applications makes it a great choice for those applications. Additionally, its ability to select one of four inputs for output using an enable signal allows it to be used in multiplexers, signal routing, and digital data acquisition. Understanding the working principle of the device is essential to using it correctly.

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