SN54/74LS322A
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.
8-BIT SHIFT REGISTERS
WITH SIGN EXTEND
LOW POWER SCHOTTKY
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
B/QB D/QD
F/QF
H/QH
Q/H
CLOCK
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
19
DS
G
S/P
18
SE
17
D1
16
B/QB
15
D/QD
14
F/QF
13
12
11
20
1
N SUFFIX
PLASTIC
CASE 738-03
H/GH Q/H
CK
D0
A/QA C/QC
E/QE
G/QG
OE
CLR
20
1
DW SUFFIX
SOIC
CASE 751D-03
1
2
3
D0
4
5
6
7
8
9
10
REGISTER S/P
ENABLE
A/QA C/QC
E/QE G/QG OUTPUT CLEAR GND
ENABLE
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
GUARANTEED OPERATING RANGES
Symbol
VCC
TA
IOH
IOL
IOH
IOL
Supply Voltage
Operating Ambient Temperature Range
Output Current 鈥?High
Output Current 鈥?Low
Output Current 鈥?High
Output Current 鈥?Low
Q H
鈥?/div>
Q H
鈥?/div>
Q H
鈥?/div>
QA鈥?QH
QA鈥?QH
QA鈥?QH
QA鈥?QH
Parameter
54
74
54
74
54, 74
54
74
54
74
54
74
Min
4.5
4.75
鈥?55
0
Typ
5.0
5.0
25
25
Max
5.5
5.25
125
70
鈥?0.4
4.0
8.0
鈥?1.0
鈥?2.6
12
24
Unit
V
擄C
mA
mA
mA
mA
FAST AND LS TTL DATA
5-1
74LS322相關(guān)型號PDF文件下載
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