TC74ACT245P

TC74ACT245,640P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74ACT245P, TC74ACT245F, TC74ACT245FT TC74ACT640P, TC74ACT640F, TC74ACT640FT Octal Bus Transceiver TC74ACT245P/F/FT TC74ACT640P/F/FT 3-State, Non-Inverting 3-State, Inverting TC74ACT245P, TC74ACT640P The TC74ACT245 and 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. 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. 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. TC74ACT245F, TC74ACT640F TC74ACT245FT, TC74ACT640FT Features (Note 1) (Note 2) High speed: tpd = 4.7 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 ∼− tpH...