74F322PC

八通道串行/并行登录注册扩展 Octal Serial/Parallel Register with Sign Extend

General Description

The 74F322 is an 8-bit shift register with provision for either serial or parallel loading and with 3-STATE parallel outputs plus a bi-state serial output. Parallel data inputs and parallel outputs are multiplexed to minimize pin count. State changes are initiated by the rising edge of the clock. Four synchronous modes of operation are possible: hold store, shift right with serial entry, shift right with sign extend and parallel load. An asynchronous Master Reset MR input overrides clocked operation and clears the register.

Features

■ Multiplexed parallel I/O ports

■ Separate serial input and output

■ Sign extend function

■ 3-STATE outputs for bus applications