74AHC157D,118

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The 74AHC157D,118 is part of a family of logic devices called signal switches, multiplexers and decoders. The device is a single supply, low power, low voltage four-channel non-inverting multiplexer/demultiplexer composed of 74AHC157D and one 118. The device is ideal for applications in the automotive, consumer, communications and industrial markets.

This multiplexer/demultiplexer is designed to handle voltages as low as 0.8V while providing a high level of noise immunity and signal integrity. It is capable of handling open drain outputs and signal level translation between different voltage nodes. The device also features a wide signal voltage margin and low signal propagation delay of approximately 2.2ns.

The 74AHC157D,118 is especially suited for applications in a broad range of data, digital signal processing and industrial process control markets and uses. The device is ideal for connecting signals from digital inputs and outputs, providing logic level translation and signal switching. It is also useful for switching supply voltages between multiple voltage nodes.

The working principle of the 74AHC157D,118 is as follows. When the select input (S) is low, the four data lines A, B, C and D are connected to the same output (Y). When the select input (S) is high, the four data lines A, B, C and D are connected to the outputs. The signal input (I) is connected to the select (S) and the signal output (O) is connected to the 118. This enables the signal to be switched between different signal inputs/outputs.

The 74AHC157D,118 also features a wide signal voltage margin of 0.8V to 5.5V that helps in connecting digital inputs and outputs. The low power consumption of the device helps in powering it directly from a single supply and its small size helps in providing design flexibility. The device also features a typical signal propagation delay of 2.2ns which enables faster device speed.

In conclusion, the 74AHC157D,118 is an ideal device for applications in a wide range of data, digital signal processing and industrial process control markets and uses. The device features a wide signal voltage margin, low power consumption, high noise immunity and signal integrity, low signal propagation delay and small size. These features make the device ideal for connecting signals between digital inputs/outputs, providing logic level translation and signal switching.

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