General description
The 74F656A is an octal buffer and line driver with parity generation/checking. The 74F656A can be used as memory address driver, clock driver and bus-oriented transmitter/receiver. The inclusion of parity generation/checking improves PCB density.

Features
■ Combines 74F244 and 74F280A functions in one device
■ High impedance NPN base inputs for reduced input current (40 μA in HIGH and LOW states)
■ IIL = 20 μA compared to 600 μA in FAST family specification
■ For applications with high output drive and light bus loading
■ Non-inverting
■ 3-state output sink capability IOL = 64 mA and source IOH = 15 mA
■ Inputs and outputs on separate sides simplifies board layout
■ Combined functions reduce part count and enhance system performance
■ Industrial temperature range available (−40 °C to +85 °C)