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參數(shù)資料
| 型號(hào)： | MC74F148D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Enhanced Product 3-Pin Supply Voltage Supervisor 3-SOT-23 -55 to 125 |
| 中文描述： | F/FAST SERIES, 8-BIT ENCODER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 3/3頁 |
| 文件大?。?/td> | 87K |
| 代理商： | MC74F148D |
4-61
FAST AND LS TTL DATA
MC54/74F148
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
IIN = –18 mA
VCC = MIN
VOH
Output HIGH Voltage
54, 74
2.5
3.4
V
IOH = –1.0 mA
VCC = 4.50 V
74
2.7
3.4
V
IOH = –1.0 mA
VCC = 4.75 V
VOL
Output LOW Voltage
0.35
0.5
V
IOL = 20 mA
VCC = MIN
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
100
μ
A
VCC = MAX, VIN = 7.0 V
IIL
I0, E1
I1–I7
Output Short Circuit Current (Note 2)
–0.6
mA
VCC = MAX, VIN = 0.5 V
–1.2
mA
IOS
-60
–150
mA
VCC = MAX, VOUT = 0 V
ICC
Power Supply Current
23
35
mA
VCC = MAX, VIN = 4.5 V
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under guaranteed operating ranges.
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
VCC = +5.0 V
CL = 50 pF
Typ
TA = –55
°
C to +125
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
TA = 0
°
C to 70
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
Symbol
Parameter
Min
Max
Max
Max
Unit
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Propagation Delay
3.5
7.0
9.0
3.5
11
3.5
10
ns
In to An
Propagation Delay
4.0
8.0
10.5
4.0
13
4.0
12
2.5
5.0
6.5
2.5
8.5
2.5
7.5
ns
In to EO
Propagation Delay
2.0
5.5
7.5
2.0
9.5
2.0
8.5
3.0
7.0
9.0
3.0
11
3.0
10
ns
In to GS
Propagation Delay
2.0
6.0
8.0
2.0
10
2.0
9.0
3.5
6.5
8.5
3.5
10.5
3.5
9.5
ns
E1 to An
3.0
6.0
8.0
3.0
10
3.0
9.0
tPLH
tPHL
tPLH
tPHL
Propagation Delay
2.5
5.0
7.0
2.5
9.0
2.5
8.0
ns
E1 to GS
3.0
6.0
7.5
3.0
10
3.0
8.5
Propagation Delay
3.0
5.5
7.0
3.0
9.0
3.0
8.0
ns
E1 to EO
4.5
8.0
10.5
4.5
13
4.5
12
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