74F322 Datasheet, PDF (1/6 Pages) NXP Semiconductors – 8-bit serial/parallel register with sign extend 3-State

April 1988
Revised April 1999
74F322
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 paral-
lel 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
s Multiplexed parallel I/O ports
s Separate serial input and output
s Sign extend function
s 3-STATE outputs for bus applications
Ordering Code:
Order Number Package Number
Package Description
74F322PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS009516.prf
www.fairchildsemi.com