PI5C3251QEX-1507

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The PI5C3251QEX-1507 is an integrated, 5-channel CMOS multiplexer/demultiplexer with Logic-Signal Switch capability. It is the ideal solution for applications that require high channel resolution and reliability, such as in automotive, medical and instrumentation systems.The device is composed of five channels with individual logic-signal switches to control the data paths. Each channel can be separately enabled or disabled by setting the respective control bits and all five channels are individually configurable to operate as a multiplexer, demultiplexer or logical switch.Working PrincipleThe PI5C3251QEX-1507 works on the principle of multiplexing and demultiplexing. Multiplexing is the process of combining multiple signals into one signal, while demultiplexing is the reverse process of splitting one signal into multiple signals.This device combines five separate signals into a single output, or demultiplexes a single input into five separate outputs. It can be used for multiplexing and demultiplexing digital logic signals at rates up to 400MHz.The device operates in one of three modes: multiplexing, demultiplexing, or logic-signal switching. The devices can be configured to multiplex by setting the mode select bit, or to demultiplex by setting the de-multiplex select bit. When in multiplexing mode, the selected input data is sent to the output. When in demultiplexing mode, the selected output is sent to the specified output.For logic-signal switching, all five switches can be enabled simultaneously. When enabled, each switch will transmit their respective inputs to their respective outputs. Output SelectionThe output selection is accomplished by the DataInputSelect register bits. When set in multiplexing mode, the DataInputSelect register will output the single data selected by the 2-bit select code. When demultiplexing, the DataInputSelect register will output the single data selected by the 5-bit select code. The DataInputSelect register provides a 24ns maximum propagation delay from select code to output. The switch timing budget includes the de-multiplex switching time and the multiplexing timing in addition to the DataInputSelect register output timing.Built-In Circuit ProtectionThe PI5C3251QEX-1507 is designed with an impressive array of circuit protection features. It comes with an overvoltage tolerant input and output pins, in addition to clamping diodes that limit any transients and keeps the device safe in case of voltage spikes. It also has an overvoltage tolerant power supply rail, which helps protect the device from voltage surges and reduces the risk of system failure. Conclusion The PI5C3251QEX-1507 is a high performance, Logic-Signal Switch capable of combining five separate signals into one output, or demultiplexing one input into five separate outputs. It can multiplex and demultiplex digital logic signals at speeds up to 400MHz, and its built-in protection features ensure reliable and robust operation. For automotive, medical, and instrumentation applications that require reliable channel resolution and performance, the PI5C3251QEX-1507 is the ideal solution.

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