© 1999 Fairchild Semiconductor Corporation DS009515 www.fairchildsemi.com
April 1988
Revised August 1999
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4F299
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74F299
Octal Universal Shift/Storage Register
with Common Parallel I/O Pins
General Description
The 74F299 is an 8-bit universal shift/storage register with
3-STATE outputs. Four modes of operation are possible:
hold (store), shift left, shift right and load data. The parallel
load inputs and flip-flop outputs are multiplexed to reduce
the total number of package pins. Additional outputs, Q
0
–
Q
7
, are provided to allow easy serial cascading. A separate
active LOW Master Reset is used to reset the register.
Features
a73 Common parallel I/O for reduced pin count
a73 Additional serial inputs and outputs for expansion
a73 Four operating modes: shift left, shift right, load and
store
a73 3-STATE outputs for bus-oriented applications
a73 Guaranteed 4000V minimum ESD protection

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
74F299SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F299SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F299PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide