SN74AS880

These SN74AS880 dual 4-bit registers feature 3-state outputs designed specifically for bus driving. This makes these devices particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The SN74AS880 dual 4-bit latches are transparent D-type. When the SN74AS880 latch enable input (1C or 2C) is high, the Q outputs will follow the data (D) inputs in inverted form, according to the function table. When the latch enable input is taken low, the outputs will be latched. When PRE goes low, the Q outputs go low independently of the clock. The outputs are in a high-impedance state when OC (output control) is at a high logic level.

The SN54ALS880A and SN54AS880 are characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS880A and SN74AS880 are characterized for operation from 0°C to 70°C.