SN74LS348DRE4

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Logic - Signal Switches, Multiplexers and Decoders are used in various electronic circuits and devices, with many applications ranging from industrial to consumer applications. Among these electronic components is the SN74LS348DRE4, a fast 3-channel 8-bit multiplexer with Enable/Disable and Serial/Parallel configurations. This device is used in many applications where fast switching, timing and decoding is required.

The SN74LS348DRE4 is an 8-bit 3-channel multiplexer and decoder. It consists of eight data input channels, eight data output channels, an enable line, a serial/parallel select, and a control line to select either the serial or parallel data mode. Depending on the logic level of the enable line, the output channel, which is the desired data is selected. In the serial mode, the data is sent bit by bit, starting with the MSB, or Most Significant Bit, down to the LSB, or Least Significant Bit. A shift register is built into the device for this purpose, allowing for speedier data transfer. The SN74LS348DRE4 is available in DIP, SOIC, VQFN, and TSSOP packages.

The SN74LS348DRE4 can be used in applications such as video switching and sampling, ADC/DAC multiplexing, motor control and robotics, logic gate circuits, and many others. It has a maximum supply voltage rating of 5.5V, a minimum power dissipation rating of 0.25W, a maximum propagation delay of 20ns, and a maximum ESD rating of 2000V. It operates between 0°C and +70°C.

The working principle of the SN74LS348DRE4 is quite simple. When the enable line is a logic “0”, the device is disabled and no data is transferred. When the enable line is a logic “1”, the device is enabled, and the data is sent depending on whether the serial or parallel data mode is selected. In the serial mode, the data is read bit by bit, with the MSB being the first to be selected and the LSB the last. In the parallel mode, the output channel is selected depending on the value at all the 8 data inputs.

Overall, the SN74LS348DRE4 is a great device for applications that require fast switching, timing, and decoding. It is easy to use and is available in various packages, making it suitable for a wide range of applications. With its high speeds, accuracy, and reliability, the SN74LS348DRE4 is a must for any electronic system that needs fast switching and timing.

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