HCF4521B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'HCF4521B' PDF : 12 Pages View PDF
HCF4521B
DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns)
Symbol
Parameter
VDD (V)
tPLH Output Rise Time
5
10
15
tPHL Output Fall Time
5
10
15
tPHL , Propagation Delay Time
5
tPLH Clock to Q18
10
15
tPHL , Propagation Delay Time
5
tPLH Clock to Q24
10
15
tPHL Propagation Delay Time
5
RESET to Qn
10
15
tWH(d) Clock Pulse Width
5
10
15
fcl Clock Pulse Frequency
5
10
15
tTHL , Clock Rise and Fall Time
5
tTLH
10
15
tW(R) Reset Pulse Width
5
10
15
(*) Typical temperature coefficient for all VDD value is 0.3 %/°C.
Test Condition
Value (*)
Unit
Min. Typ. Max.
385
150
120
1400
600
450
100
50
40
100
50
40
4.5
1.7
1.3
6.0
2.2
1.7
1300
500
375
140
55
40
3.5
9
12
700
300
225
200
100
80
200
100
80
9.0
3.5
2.7
12
4.5
3.5
2600
1000
750
2
5
6.5
15
15
15
ns
ns
µs
µs
ns
ns
MHz
µs
ns
7/12
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