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HCF4521BM1 Fiches technique(PDF) 5 Page - STMicroelectronics

No de pièce HCF4521BM1
Description  24 STAGE FREQUENCY DIVIDER
Download  12 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HCF4521BM1 Fiches technique(HTML) 5 Page - STMicroelectronics

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DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb =25
oC, CL =50 pF, RL = 200 KΩ,
typical temperaturecoefficent for all VDD values is 03 %/
oC, all input rise and fall times= 20 ns)
Symb ol
Parameter
T est Cond ition s
Value
Un it
VDD
(V)
Min.
Typ.
Max.
tPLH
Output Rise Time
5
100
200
ns
10
50
100
15
40
80
tPHL
Output Fall Time
5
100
200
ns
10
50
100
15
40
80
tPHL
tPLH
Propagation Delay Time Clock to Q18
5
4.5
9.0
µs
10
1.7
3.5
15
1.3
2.7
tPHL
tPLH
Propagation Delay Time Clock to Q24
5
6.0
12
µs
10
2.2
4.5
15
1.7
3.5
tPHL
Propagation Delay Time RESET to Qn
5
1300
2600
ns
10
500
1000
15
375
750
tWH(cl)
Clock Pulse Width
5
385
140
ns
10
150
55
15
120
40
fcl
Clock Pulse Frequency
5
3.5
2
MHz
10
9
5
15
12
6.5
tTLH
tTHL
Clock Rise and Fall Time
5
15
µs
10
15
15
15
tW(R)
Reset Pulse Width
5
1400
700
ns
10
600
300
15
450
225
HCF4521
5/12


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