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HCF4020B 数据表(PDF) 5 Page - STMicroelectronics

部件名 HCF4020B
功能描述  RIPPLE-CARRY BINARY COUNTER/DIVIDERS 14 STAGE
PDF  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HCF4020B 数据表(HTML) 5 Page - STMicroelectronics

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DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200KΩ,tr =tf =20ns)
(*) Typical temperature coefficient for all VDD value is 0.3%/°C.
Symbol
Parameter
Test Condition
Value (*)
Unit
VDD (V)
Min.
Typ.
Max.
INPUT-PULSE OPERATION
tPLH tPHL Propagation Delay Time
(
∅ to Q1 Out)
5
180
360
ns
10
80
160
15
65
130
tPLH tPHL Propagation Delay Time
(Qn to Qn+1)
5
100
200
ns
10
40
80
15
30
60
tTHL tTLH Transition Time
5
100
200
ns
10
50
100
15
40
80
tW
Minimum Input Pulse
Width
570
140
ns
10
30
60
15
20
40
tr ,tf
Input Pulse Rise and Fall
Time
5
unlimited
µs
10
15
fmax
Maximum Clock Input
Frequency
53.5
7
MHz
10
8
16
15
12
24
RESET OPERATION
tPHL
Propagation Delay Time
5
140
280
ns
10
60
120
15
50
100
tW
Minimum Reset Pulse
Width
5
100
200
ns
10
40
80
15
30
60
tREM
Reset Removal Time
5
175
350
ns
10
75
150
15
50
100



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