HCF4020B 查看數據表（PDF） - STMicroelectronics
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HCF4020B Datasheet PDF : 11 Pages
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HCC/HCF4020B/24B/40B
DYNAMIC ELECTRICAL CHARACTERISTICS (T amb = 25°C, CL = 50pF, RL = 200kΩ,
typical temperature coefficient for all VDD = 0.3%/°C values, all input rise and fall time = 20ns).
Symbol
Parameter
INPUT-PULSE OPERATION
Test Conditions
V al ue
V D D (V) Min. Typ. Max.
tP L H, tP HL Propagation Delay Time
(Ø to Q1 Out)
5
180 360
10
80 160
15
65 130
t P L H, tP HL Propagation Delay Time
Qn to Q n +1
5
100 200
10
40 80
15
30 60
t TL H, tT HL Transition Time
5
100 200
10
50 100
15
40 80
tW
Minimum Input Pulse Width
5
70 140
10
30 60
15
20 40
tr, tf Input Pulse Rise and Fall Time
5
10
Unlimited
15
fmax Maximum Clock Input Frequency
5
3.5
7
10
8
16
15
12 24
RESET OPERATION
tP HL Propagation Delay Time
5
140 280
10
60 120
15
50 100
tW
Minimum Reset Pulse Width
5
100 200
10
40 80
15
30 60
tre m Reset Removal Time
5
175 350
10
75 150
15
50 100
Unit
ns
ns
ns
ns
µs
MHz
ns
ns
ns
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