Overview: TC74ACT257P/F
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74ACT257P, TC74ACT257F
2-Channel Multiplexer (3-state) The TC74ACT257 is an advanced high speed CMOS MULTIPLEXER fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
This device may be used as a level converter for interfacing TTL or NMOS to High Speed CMOS. The inputs are patible with TTL or NMOS and CMOS output voltage levels.
Each 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 discharge or transient excess voltage.
