• Part: HD74HC257
  • Description: Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)
  • Manufacturer: Hitachi Semiconductor
  • Size: 52.59 KB
HD74HC257 Datasheet (PDF) Download
Hitachi Semiconductor
HD74HC257

Description

The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent into a high impedance state.

Key Features

  • High Speed Operation: tpd (Data to Y) = 10.5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)