General Description

The AC/ACT399 is the logical equivalent of a quad 2-input multiplexer feeding into four edge-triggered flip-flops. A common Select input determines which of the two 4-bit words is accepted. The selected data enters the flip-flop on the rising edge of the clock.

Features

■ ICC reduced by 50

■ Select inputs from two data sources

■ Fully positive edge-triggered operation

■ Outputs source/sink 24 mA

■ AC/ACT399 has TTL-compatible inputs