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參數資料
| 型號： | SN54LS322J |
| 廠商： | Motorola, Inc. |
| 英文描述： | Octal Buffer/Line Driver with 3-State Outputs; Package: 20 LEAD PDIP; No of Pins: 20; Container: Rail; Qty per Container: 18 |
| 中文描述： | 8位移位寄存器帶符號擴展 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 113K |
| 代理商： | SN54LS322J |
5-1
FAST AND LS TTL DATA
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
VCC
DATA
SELECT
SIGN
EXTEND D1
B/QB
D/QD
F/QF
H/QH
Q/H
CLOCK
D0
A/QA
C/QC
E/QE
G/QG
S/P
REGISTER
ENABLE
OUTPUT
ENABLE
CLEAR
GND
(TOP VIEW)
18
17
16
15
14
13
1
2
3
4
5
6
7
20
19
8
9
10
12
11
DS
SE
D1
B/QB
D/QD
F/QF
H/GH
Q/H
G
CK
S/P
D0
A/QAC/QC
E/QE
G/QG
OE
CLR
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°
C
IOH
IOL
Output Current — High
QH
′
QH
′
QH
′
54, 74
–0.4
mA
Output Current — Low
54
74
4.0
8.0
mA
IOH
Output Current — High
QA–QH
QA–QH
54
74
–1.0
–2.6
mA
IOL
Output Current — Low
QA–QH
QA–QH
54
74
12
24
mA
SN54/74LS322A
8-BIT SHIFT REGISTERS
WITH SIGN EXTEND
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXDW SOIC
Ceramic
Plastic
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
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| SN74LS352 | DUAL 4-INPUT MULTIPLEXER |
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