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Timing Requirements (input: tr = tf = 6 ns)
Characteristics
Symbol
Minimum pulse width
(CK, CE )
Minimum pulse width
(CLR)
tW (H)
tW (L)
tW (H)
Minimum removal time
trem
Clock frequency
f
TC74HC4520AP/AF
Test Condition
⎯
⎯
⎯
⎯
VCC (V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Ta = 25°C
Typ. Limit
⎯
75
⎯
15
⎯
13
⎯
75
⎯
15
⎯
13
⎯
50
⎯
10
⎯
9
⎯
6
⎯
30
⎯
35
Ta =
−40 to
85°C
Limit
95
19
16
95
19
16
60
12
11
4
24
28
Unit
ns
ns
ns
MHz
AC Characteristics (CL = 15 pF, VCC = 5 V, Ta = 25°C, input: tr = tf = 6 ns)
Characteristics
Output transition time
Propagation delay time
(CK, CE -Qn)
Propagation delay time
(CLR-Qn)
Maximum clock frequency
Symbol
tTLH
tTHL
tpLH
tpHL
tpHL
fmax
Test Condition
⎯
⎯
⎯
⎯
Min Typ. Max Unit
⎯
4
8
ns
⎯
17
27
ns
⎯
15
25
ns
33
55
⎯ MHz
5
2007-10-01