SN74AHCT138PWRG4

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SN74AHCT138PWRG4 is a high-speed CMOS logic device from Texas Instruments that is used in digital circuit applications with the aim of switching, multiplexing and decoding logic signals. It offers significantly greater speed than its predecessor, the SN74HC138 and is also pin compatible with this device.

The SN74AHCT138PWRG4, which has a total of 8 input lines, is capable of switching signals at high speeds, making it the ideal choice for applications such as data bus demultiplexing or memory address decoding. It is also widely used in clock and reset circuits, in which its low-power consumption and reliability make it especially useful.

The SN74AHCT138PWRG4 is classified as a logic signal switch, multiplexer, and decoder. It is a 3-state device that is capable of both true and complemented outputs and can be used in applications such as CPU bus control, memory address decoding and multiplexing, as well as providing control signals to various digital devices.

The SN74AHCT138PWRG4 has three separate sections, each consisting of four multiplexer circuits (MS, ML, MH and MAG). These together form a 4x8 multiplexer which can be used to select one of eight different logic levels. The multiplexer allows the user to switch between the logic levels very quickly by applying the appropriate logic inputs to the MS, ML and MH control inputs.

It also includes a decoder section which can be used to decode binary information from the multiplexer signals. The output of the decoder is the decode 1 line which, when the appropriate input signals are applied to the MS, ML and MH inputs, allows a binary selection of eight different logic levels.

The SN74AHCT138PWRG4 also features a enable input, which is used to enable or disable the device. When the enable input is at logic level one, the decoder is enabled, and the selected logic level will be output on the decode 1 output. When the enable input is at logic level zero, the output of the decoder section will be zero.

In addition, the SN74AHCT138PWRG4 includes an “active HIGH” reset input which, when asserted, will reset all outputs of the device. This feature allows the device to be easily reset when the logic signals have gone into unknown states.

In sum, the SN74AHCT138PWRG4 is a low-power, reliable, high-speed CMOS logic device from Texas Instruments that can be used for switching, multiplexing, and decoding logic signals in digital circuits. It is classified as a logic-signal switch, multiplexer and decoder, and is an invaluable component for applications requiring fast and reliable logic signal switching, decoding and selection.

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