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TC74ACT161P/F/FN Asynchronous Clear

TC74ACT163P/F/FN Synchronous Clear

The TC74ACT161 and T163 are advanced high speed CMOS SYNCHRONOUS PRESETTABLE 4 BIT BINARY COUNTERs fabricated with silicon gate and double-layer metal wiring C2MOS technology.

They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.

These devices 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 levels.

Features

? High speed: fmax = 110 MHz (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 ? transmission lines.

? Balanced propagation delays: tpLH ～ ? tpHL

? Pin and function compatible with 74F161/163