Part 74AC399
Description Quad 2-Port Register
Manufacturer Fairchild Semiconductor
Size 127.86 KB
Fairchild Semiconductor
74AC399

Overview

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.

  • 74ACT399 Functional Description The AC/ACT399 is a high-speed quad 2-port register. It selects four bits of data from either of two sources (Ports) under control of a common Select input (S). The selected data is transferred to a 4-bit output register synchronous with the LOW-to-HIGH transition of the Clock input (CP). T