Quad 2-Channel Multiplexer

The TC74ACT157 is an advanced high speed CMOS QUAD 2-CHANNEL MULTIPLEXER fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieves 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, NMOS and CMOS output voltage levles.
This device consist of four 2-input digital multiplexer with common select and strobe inputs.

Features
• High speed: tpd = 5.1 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
• Compatible with TTL outputs: VIL = 0.8 V (max)
                                                  VIH = 2.0 V (min)
• Symmetrical output impedance: |IOH| = IOL = 24 mA (min)
                                                     Capability of driving 50 Ω
                                                     transmission lines.
• Balanced propagation delays: tpLH ∼ − tpHL
• Pin and function compatible with 74F157