[elecena] 5-V, 4:1, 2-channel analog multiplexer with TTL inputs - zmiany ceny The SN74CBT3253 is a dual 1-of-4 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. 1OE\, 2OE\, S0, and S1 select the appropriate B output for the A-input data.