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TC74AC640FT - Octal Bus Transceiver

Download the TC74AC640FT datasheet PDF. This datasheet also covers the TC74AC245F variant, as both devices belong to the same octal bus transceiver family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (TC74AC245F_ToshibaSemiconductor.pdf) that lists specifications for multiple related part numbers.

Overview

TC74AC245,640P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC245P, TC74AC245F, TC74AC245FT TC74AC640P, TC74AC640F, TC74AC640FT Octal Bus Transceiver TC74AC245P/F/FT 3-State, Non-Inverting TC74AC640P/F/FT 3-State, Inverting TC74AC245P, TC74AC640P The TC74AC245, 640 are advanced high speed CMOS OCTAL BUS TRANSCEIVERs 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.

They are intended for two-way asynchronous communication between data busses.

Key Features

  • (Note 1)(Note 2) TC74AC245FT, TC74AC640FT.
  • High speed: tpd = 3.9 ns (typ. ) at VCC = 5 V.
  • Low power dissipation: ICC = 8 μA (max) at Ta = 25°C.
  • High noise immunity: VNIH = VNIL = 28% VCC (min).
  • Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines.
  • Balanced propagation delays: tpLH ∼.
  • tpHL.
  • Wide operating voltage range: VCC (opr) = 2 V to 5.5 V.
  • Pin and function compatible wit.