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TC74ACT521P - 8-Bit Equality Comparator

Key Features

  • High speed: tpd = 6.4 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 74F521 Pin Assignment TC74ACT521P TC74ACT521F Weight DIP20-P-300-2.54A SOP20-P-300-1.27A.

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Full PDF Text Transcription (Reference)

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TC74ACT521P/F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74ACT521P, TC74ACT521F 8-Bit Equality Comparator The TC74ACT521 is an advanced high speed CMOS 8-BIT DIGITAL COMPARATOR 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 levels. It compares two 8-bit binary or BCD words applied inputs P0~P7, and inputs Q0~Q7, and indicates whether or not they are equal.