MM74HC423AMTCX Просмотр технического описания (PDF) - Fairchild Semiconductor
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MM74HC423AMTCX Datasheet PDF : 10 Pages
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AC Electrical Characteristics
VCC = 5V, TA = 25°C, CL = 15 pF, tr = tf = 6 ns
Symbol
Parameter
Conditions
tPLH
tPHL
tPHL
tPLH
tW
tREM
tWQ(MIN)
tWQ
Maximum Trigger Propagation Delay,
A, B to Q
Maximum Trigger Propagation Delay,
A, B to Q
Maximum Propagation Delay,
Clear to Q
Maximum Propagation Delay,
Clear to Q
Minimum Pulse Width, A, B or Clear
Minimum Clear Removal Time
Minimum Output Pulse Width
Output Pulse Width
CEXT = 28 pF
REXT = 2 kΩ
CEXT = 1000 pF
REXT = 10 kΩ
Typ
Guatanteed
Limit
Units
22
33
ns
25
42
ns
20
27
ns
22
33
ns
14
26
ns
0
ns
400
ns
10
µs
AC Electrical Characteristics
CL = 50 pF tr = tf = 6 ns (Unless otherwise specified)
Symbol
Parameter
Conditions
VCC
TA = 25°C
TA = −40 to 85°C TA = −55 to 125°C Units
Typ
Guaranteed Limits
tPLH
Maximum Trigger Propagation
Delay, A or B to Q
2.0V
77
169
194
4.5V
26
42
51
210
57
ns
6.0V
21
32
39
44
tPHL
Maximum Trigger Propagation
Delay, A or B to Q
2.0V
88
197
229
4.5V
29
48
60
250
67
ns
6.0V
24
38
46
51
tPHL
Maximum Propagation
Delay, Clear to Q
2.0V
54
114
132
4.5V
23
34
41
143
45
ns
6.0V
19
28
33
36
tPLH
Maximum Propagation
Delay, Clear to Q
2.0V
56
116
135
4.5V
25
36
42
147
46
ns
6.0V
20
29
34
37
tW
Minimum Pulse Width
A, B, Clear
2.0V
57
123
144
4.5V
17
30
37
157
42
ns
6.0V
12
21
27
30
tREM
Minimum Clear
Removal Time
2.0V
0
0
0
4.5V
0
0
0
0
0
ns
6.0V
0
0
0
0
tWQ
Output Pulse Width
CEXT = 0.1 µF Min 5.0V
1
0.9
REXT = 10 kΩ
Max 5.0V
1
1.1
0.86
1.14
0.85
ms
1.15
ms
tTLH, tTHL Maximum Output Rise
and Fall Time
2.0V
30
75
95
4.5V
8
15
19
110
22
ns
6.0V
7
13
16
19
CPD
Power Dissipation
83
pF
Capacitance (Note 6)
CIN
Maximum Input
Capacitance (Pins 7 & 15)
12
20
20
20
pF
CIN
Maximum Input
Capacitance (other inputs)
6
10
10
10
pF
Note 6: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption,
IS = CPD VCC f + ICC.
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