74ACT253SC

Series:	74ACT
Packaging:	Tube
Part Status:	Obsolete
Type:	Multiplexer
Circuit:	2 x 4:1
Independent Circuits:	1
Current - Output High, Low:	24mA, 24mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	74ACT253

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The 74ACT253SC is a quad 2-input multiplexer/demultiplexer with 3-state output buffering logic featuring low power and high speed. It is part of the Advanced low power Schottky (ALS) series, with TTL compatibility and low power, high speed performance. The device multiplexes four bit input signals and provides a single output, allowing for easy data selection. It has a flexible encoding scheme allowing for simple decoding. The DT pin is a data enable pin and when low, the output is in high impedance state.The 74ACT253SC has several applications in communication, computing and data processing. It is typically used in communication systems for data selection and multiplexing and demultiplexing. It can also be used in CPU interfacing, data bus multiplexing or for a variety of logic implementations. In addition, it is suitable for addressing and decoding in memory, DSP, or microprocessor applications.The 74ACT253SC is a single chip multiplexer featuring data enable and data select pins on each of the four channels. This multiplexer has two stages; first a data select circuit which serves to select the desired data source and then a data enable circuit which controls the data output.The first stage of the 74ACT253SC multiplexer consists of two sets of four data select pins (A0-A3, B0-B3), which enable data selection among the four channels. When the appropriate combination of digital input signals is applied to these pins, the data enable circuit is activated and the corresponding data outputs. The data enable circuit (EN1, EN2, EN3, and EN4) is used to control the data output from each channel. When the data enable signal of channel n is set to logic low, the data from channel n is enabled, and the data from all other channels is disabled. If all the data enable signals are set to logic high, then all data outputs will be disabled.The 74ACT253SC can be used in a variety of logic implementations. It can be used in logic coding, logic switching, logic gating, logic comparison, and logic shifting applications. The device can be used in a variety of microprocessor and memory applications such as direct memory access, data buffering and address decoding. It can also be used as a digital multiplexer in point-to-point communication. The device can also be used to multiplex audio signals in video production applications.The 74ACT253SC is capable of delivering fast and low-power performance, making it an ideal application for a wide range of digital and communication applications. This multiplexer features the true TTL logic and is packed in an SOIC package, making it very space efficient. The 74ACT253SC is best suitable for applications that demand low power and high speed.

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