© 2000 Fairchild Semiconductor Corporation DS009585 www.fairchildsemi.com
April 1988
Revised October 2000
74F673A 16-Bit Serial-In, Serial/Parallel-Out Shift Register
74F673A
16-Bit Serial-In, Serial/Parallel-Out Shift Register
General Description
The 74F673A contains a 16-bit serial-in, serial-out shift
register and a 16-bit Parallel-Out storage register. A single
pin serves either as an input for serial entry or as a
3-STATE serial output. In the Serial-Out mode, the data
recirculates in the shift register. By means of a separate
clock, the contents of the shift register are transferred to
the storage register for parallel outputting. The contents of
the storage register can also be parallel loaded back into
the shift register. A HIGH signal on the Chip Select input
prevents both shifting and parallel transfer. The storage
register may be cleared via STMR
.
Features
■ Serial-to-parallel converter
■ 16-bit serial I/O shift register
■ 16-bit parallel-out storage register
■ Recirculating serial shifting
■ Recirculating parallel transfer
■ Common serial data I/O pin
■ Slim 24 lead package
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74F673ASC M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F673APC N24A 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.600 Wide
74F673ASPC N24C 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
