Datasheet Summary
TC74HC257AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC257AP, TC74HC257AF
Quad 2-Channel Multiplexer (3-state)
The TC74HC257A is high speed CMOS MULTIPLEXER fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
It is posed of four independent 2-channel multiplexers with mon SELECT and OUTPUT ENABLE ( OE ).
If OE is set low, the outputs are held in a high-impedance state. When SELECT is set low, “A” data inputs are enabled.
Conversely, when SELECT is high, “B” data inputs are enabled.
All inputs are equipped with protection circuits against static...