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SN74LS322A Datasheet PDF - Motorola Semiconductors

Part Number SN74LS322A
Description 8-BIT SHIFT REGISTERS
Manufacturers Motorola Semiconductors 
Logo Motorola Semiconductors Logo 

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8-BIT SHIFT REGISTERS
WITH SIGN EXTEND
These 8-bit shift registers have multiplexed input/output data ports to
accomplish full 8-bit data handling in a single 20-pin package. Serial data may
enter the shift-right register through either D0 or D1 inputs as selected by the
data select pin. A serial output is also provided. Synchronous parallel loading
is achieved by taking the register enable and the S / P inputs low. This places
the three-state input / output ports in the data input mode. Data is entered on
the low-to-high clock transition. The data extend function repeats the sign in
the QA flip-flop during shifting. An overriding clear input clears the internal
registers when taken low whether the outputs are enabled or off. The output
enable does not affect synchronous operation of the register.
Multiplexed Inputs/ Outputs Provide Improved Bit Density
Sign Extend Function
Direct Overriding Clear
3-State Outputs Drive Bus Lines Directly
(TOP VIEW)
DATA SIGN
VCC SELECT EXTEND D1
20 19 18 17
B/QB D/QD F/QF H/QH
16 15 14 13
Q/H CLOCK
12 11
DS SE D1 B/QB D/QD F/QF H/GH Q/H
G CK
S/P D0 A/QA C/QC E/QE G/QG OE CLR
12
REGISTER S/P
ENABLE
3 4 5 6 7 8 9 10
D0 A/QA C/QC E/QE G/QG OUTPUT CLEAR GND
ENABLE
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH
Output Current — High
QH
IOL
Output Current — Low
QH
QH
IOH
Output Current — High
QA– QH
QA– QH
IOL
Output Current — Low
QA– QH
QA– QH
54
74
54
74
54, 74
54
74
54
74
54
74
SN54/74LS322A
8-BIT SHIFT REGISTERS
WITH SIGN EXTEND
LOW POWER SCHOTTKY
20
1
20
1
20
1
J SUFFIX
CERAMIC
CASE 732-03
N SUFFIX
PLASTIC
CASE 738-03
DW SUFFIX
SOIC
CASE 751D-03
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
Min Typ Max Unit
4.5 5.0 5.5
4.75 5.0 5.25
V
– 55 25 125 °C
0 25 70
– 0.4
mA
4.0 mA
8.0
– 1.0
– 2.6
mA
12 mA
24
FAST AND LS TTL DATA
5-1



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Featured Datasheets

Part NumberDescriptionManufacturers
SN74LS322AThe function is 8-Bit Shift Registers With Sign Extend.Texas Instruments
Texas Instruments
SN74LS322AThe function is 8-BIT SHIFT REGISTERS.Motorola Semiconductors
Motorola Semiconductors

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