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參數資料
| 型號： | MC74F20 |
| 廠商： | Motorola, Inc. |
| 英文描述： | DUAL 4-INPUT NAND GATE |
| 中文描述： | 雙4輸入與非門 |
| 文件頁數： | 2/2頁 |
| 文件大小： | 54K |
| 代理商： | MC74F20 |
4-18
FAST AND LS TTL DATA
MC54/74F20
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
VIK
Input Clamp Diode Voltage
–1.2
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54, 74
2.5
V
IOH = –1.0 mA
VCC = 4.50 V
74
2.7
V
IOH = –1.0 mA
VCC = 4.75 V
VOL
Output LOW Voltage
0.5
V
IOL = 20 mA
VCC = MIN
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
–0.6
mA
VCC = MAX, VIN = 0.5 V
IOS
Output Short Circuit Current (Note 2)
–60
–150
mA
VCC = MAX, VOUT = 0 V
ICC
Power Supply Current
Total, Output HIGH
1.4
mA
VCC = MAX, VIN = GND
Total, Output LOW
5.1
mA
VCC = MAX, VIN = Open
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
54/74F
54F
74F
TA = +25
°
C
TA = –55
°
C to +125
°
C
VCC = 5.0 V
±
10%
TA = 0
°
C to 70
°
C
VCC = 5.0 V
±
10%
VCC = +5.0 V
CL = 50 pF
CL = 50 pF
CL = 50 pF
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Unit
tPLH
Propagation Delay
2.4
5.0
2.0
7.0
2.4
6.0
ns
tPHL
Propagation Delay
1.5
4.3
1.5
6.5
1.5
5.3
ns
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