SN74CBT3383CDBRE4

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The SN74CBT3383CDBRE4 is a triple 3-line to 8-line decoder/demultiplexer with 3-state outputs and a TTL-compatible input. This circuit functions as a three-line to eight-line decoder/demultiplexer, or as two 8-line demultiplexers, or as one 4-line to 16-line decoder/demutiplexer with 3-state outputs. This device is well-suited for memory address decoding, multiplexer and demultiplexer applications and data conversion. As a decoder/demultiplexer and multiplexer, the SN74CBT3383CDBRE4 works when the Enable (G1, G2A and G2B) inputs are activated low, thereby selecting one-of-eight data inputs available at the A0, A1, A2 (CBA) inputs. The eight active channels are indicated as outputs on pin 3 - 10 (Y0 – Y7) as low outputs. By activating the appropriate Enable pin low, any one of eight channels can be selected and all of the nonselected outputs will be in a high-impedance state.

The SN74CBT3383CDBRE4 is suitable for multiplexer and demultiplexer applications in communications and logic control in industrial, medical and transportation systems, among other applications, due to its low voltage logic level of 3.0 V. It is capable of transferring data through byte as well as power. The device can even be used with multiprocessors and is also suitable for asynchronous data transfer, making it more flexible.

The working principle of the SN74CBT3383CDBRE4 is based on the fact that the Enable (G1, G2A and G2B) inputs are activated low, thereby selecting one-of-eight data inputs available at the A0, A1 and A2 (CBA) inputs. This means that when the Enable inputs become low, only one of the eight channels is selected and the corresponding output is enabled and all other outputs remain in the high impedance state. The selected output will remain low, regardless of any other changes in the inputs. The device also provides for two 8-bit multiplexer applications where the input known as D1b to D8b are connected at the Enable and CBA inputs with the outputs from whichever channel is selected connected at the outputs.

In summary, the SN74CBT3383CDBRE4 is a popularly-used multiplexer, decoder and demultiplexer that can be used in a variety of applications. Its low voltage logic level enables it to be used in a variety of applications, and the fact that the selected output will remain low regardless of any other changes in the inputs makes it an ideal choice for data conversion, address decoding as well as asynchronous data transfer.

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