TC74AC245FT(EL)

Octal Bus Transceiver TC74AC245FT:3-State, Non-Inverting TC74AC640FT:3-State, Inverting The TC74AC245FT, TC74AC640FT 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. The direction of data transmission is determined by the level of the DIR input. The enable input (G) can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static discharge or transient excess voltage.

Key features

• Wide operating temperature range: Topr = -40 to 125 ℃
• High speed: tpd = 3.9 ns (typ.) at VCC = 5.0 V
• Low power dissipation: ICC = 8.0 μA (max) at Ta = 25 ℃
• High noise immunity: ΔVNIH = VNIL = 28 %VCC (min)
• Output current: I IOH I /IOL = 24 mA (min) (VCC = 4.5 V)
• Balanced propagation delays: tPLH ≈ tPHL
• Wide operating voltage range: VCC(opr) = 2.0 V to 5.5 V
• Pin and function compatible with 74F245/640.