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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 compatible with TTL or NMOS and CMOS output voltage levels.
Each is composed of four independent 2-channel multiplexers with common 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.