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HCF4018B 数据表(PDF) 6 Page - STMicroelectronics

部件名 HCF4018B
功能描述  PRESETTABLE DIVIDE-BY-N COUNTER
PDF  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HCF4018B 数据表(HTML) 6 Page - STMicroelectronics

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DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns)
(*) Typical temperature coefficient for all VDD value is 0.3 %/°C.
(1) At PRESET ENABLE or JAM inputs
Symbol
Parameter
Test Condition
Value (*)
Unit
VDD (V)
Min.
Typ.
Max.
tPLH tPHL Propagation Delay Time
5
200
400
ns
10
90
180
15
65
130
tTHL tTLH Transition Time
5
100
200
ns
10
50
100
15
40
80
fCL
Maximum Clock Input
Frequency
53
6
MHz
10
7
14
15
8.5
17
tW
Minimum Clock Pulse
Width
5
160
80
ns
10
70
35
15
50
25
tr , tf
Clock Input Rise or Fall
Time
5
unlimited
µs
10
15
tsetup
Data Setup Time Minimum
Clock Inhibit
540
20
ns
10
12
6
15
6
3
tH
Data Input Hold-Time
5
140
70
ns
10
80
40
15
60
30
PRESET(1) or RESET OPERATION
tPLH, tPHL Propagation Delay Time
(reset or reset to Q)
5
275
550
ns
10
125
250
15
90
180
tW
Preset or Reset Pulse
Width
5
160
80
ns
10
70
35
15
50
25
tREM
Preset or Reset Removal
Time
580
40
ns
10
30
15
15
20
10



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