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SN74LS299H Datasheet PDF : 8 Pages
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SN74LS299
8-Bit Shift/Storage Register
with 3-State Outputs
The SN74LS299 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. Separate outputs are provided
for flip-flops Q0 and Q7 to allow easy cascading. A separate active
LOW Master Reset is used to reset the register.
• Common I/O for Reduced Pin Count
• Four Operation Modes: Shift Left, Shift Right, Load and Store
• Separate Shift Right Serial Input and Shift Left Serial Input for Easy
Cascading
• 3-State Outputs for Bus Oriented Applications
• Input Clamp Diodes Limit High-Speed Termination Effects
• ESD > 3500 Volts
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC
Supply Voltage
TA
Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0
25
70
°C
IOH
Output Current – High
Q0, Q7
IOL
Output Current – Low
Q0, Q7
IOH
Output Current – High
I/O0 – 1/O7
IOL
Output Current – Low
I/O0 – 1/O7
– 0.4 mA
8.0
mA
– 2.6 mA
24
mA
http://onsemi.com
LOW
POWER
SCHOTTKY
20
1
PLASTIC
N SUFFIX
CASE 738
20
1
SOIC
DW SUFFIX
CASE 751D
ORDERING INFORMATION
Device
Package
Shipping
SN74LS299N 16 Pin DIP 1440 Units/Box
SN74LS299DW 16 Pin
2500/Tape & Reel
© Semiconductor Components Industries, LLC, 1999
1
December, 1999 – Rev. 6
Publication Order Number:
SN74LS299/D
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