The FST3253MX from On Semiconductor is a Multiplexer/Demultiplexer IC. It features a 4V to 5.5V supply voltage and operates within a temperature range of -40°C to 85°C.
The 74FST3253D from ON Semiconductor is a logic IC offering multiplexer and demultiplexer functions. It is part of the signal switches, multiplexers, and decoders category.
74FST3253DR2 is a dual 4:1 multiplexer/demultiplexer IC from On Semiconductor in a 16-SOIC package. It provides two independent 4-input to 1-output channels for digital signal routing.