MC74AC157(2015) 查看數據表（PDF） - ON Semiconductor
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MC74AC157 Datasheet PDF : 9 Pages
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MC74AC157, MC74ACT157
DC CHARACTERISTICS
74ACT
74ACT
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
−40°C to
+85°C
Unit
Conditions
Typ Guaranteed Limits
VIH
Minimum High Level
Input Voltage
VIL
Maximum Low Level
Input Voltage
VOH
Minimum High Level
Output Voltage
4.5
1.5 2.0
2.0
5.5
1.5 2.0
2.0
4.5
1.5 0.8
0.8
5.5
1.5 0.8
0.8
4.5 4.49 4.4
4.4
5.5 5.49 5.4
5.4
V
VOUT = 0.1 V
or VCC − 0.1 V
V
VOUT = 0.1 V
or VCC − 0.1 V
V
IOUT = −50 mA
4.5
− 3.86
3.76
5.5
− 4.86
4.76
*VIN = VIL or VIH
V
−24 mA
IOH
−24 mA
VOL
Maximum Low Level
Output Voltage
4.5 0.001 0.1
0.1
5.5 0.001 0.1
0.1
V
IOUT = 50 mA
4.5
− 0.36
0.44
5.5
− 0.36
0.44
*VIN = VIL or VIH
V
IOL
24 mA
24 mA
IIN
Maximum Input
Leakage Current
5.5
− ±0.1
±1.0
mA
VI = VCC, GND
DICCT
Additional Max. ICC/Input
5.5
0.6
−
1.5
mA
VI = VCC − 2.1 V
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5
−
−
75
5.5
−
−
−75
mA
VOLD = 1.65 V Max
mA
VOHD = 3.85 V Min
ICC
Maximum Quiescent
Supply Current
5.5
−
8.0
80
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
mA
VIN = VCC or GND
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
tPLH
Propagation Delay
S to Zn
tPHL
Propagation Delay
S to Zn
tPLH
Propagation Delay
En to Zn
tPHL
Propagation Delay
En to Zn
tPLH
Propagation Delay
In to Zn
tPHL
Propagation Delay
In to Zn
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 2.0
−
9.0 1.5 10.0
ns
3−6
5.0 2.0
−
9.5 2.0 10.5
ns
3−6
5.0 1.5
−
10 1.5 11.5 ns
3−6
5.0 1.5
−
8.5 1.0 9.0
ns
3−6
5.0 1.5
−
7.0 1.0 8.5
ns
3−5
5.0 1.5
−
7.5 1.0 8.5
ns
3−5
CAPACITANCE
Symbol
Parameter
Value − Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
50
pF
VCC = 5.0 V
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