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參數(shù)資料
| 型號： | SN74LS181N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-BIT ARITHMETIC LOGIC UNIT |
| 中文描述： | LS SERIES, 4-BIT ARITHMETIC LOGIC UNIT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 277K |
| 代理商： | SN74LS181N |
5-335
FAST AND LS TTL DATA
SN54/74LS181
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.8
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54
2.5
3.5
V
or VIL per Truth Table
74
2.7
3.5
V
VCC = MIN, IOH = MAX, VIN = VIH
VOL
Except G and P
54, 74
0.25
0.4
V
IOL = 4.0 mA
IOL = 8.0 mA
IOL = 16 mA
per Truth Table
Output LOW Voltage
74
0.35
0.5
V
VIN = VIL or VIH
Output G
54, 74
0.7
V
VCC = VCC MIN,
Output P
54
74
0.6
0.5
V
IOL = 8.0 mA
IOH
Output HIGH Current
54, 74
100
μ
A
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IIH
Input HIGH Current
Mode Input
Any A or B Input
Any S Input
Cn Input
Mode Input
Any A or B Input
Any S Input
Cn Input
20
60
80
100
μ
A
VCC = MAX, VIN = 2.7 V
0.1
0.3
0.4
0.5
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
Mode Input
Any A or B Input
Any S Input
Cn Input
Short Circuit Current (Note 2)
–0.4
–1.2
–1.6
–2.0
mA
VCC = MAX, VIN = 0.4 V
IOS
–20
–100
mA
VCC = MAX
ICC
Power Supply Current
54
32
mA
VCC = MAX
See Note 1A
74
34
See Note 1B
54
35
74
37
Note 1.
With outputs open, ICC is measured for the following conditions:
A. S0 through S3, M, and A inputs are at 4.5 V, all other inputs are grounded.
B. S0 through S3 and M are at 4.5 V, all other inputs are grounded.
Note 2: Not more than one output should be shorted at a time, nor for more than 1 second.
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