hcc4020b STMicroelectronics, hcc4020b Datasheet - Page 5

• Manufacturer Part Number: hcc4020b
• Description: Ripple-carry Binary Counter/dividers
• Manufacturer: STMicroelectronics

DYNAMIC ELECTRICAL CHARACTERISTICS (T
typical temperature coefficient for all V
t
t
t
Symbol
P L H
P L H
INPUT-PULSE OPERATION
TL H
RESET OPERATION
t
t
f
t
P HL
r
max
t
t
r e m
, t
, t
, t
, t
W
W
P HL
P HL
T HL
f
Propagation Delay Time
(Ø to Q1 Out)
Propagation Delay Time
Qn to Q
Transition Time
Minimum Input Pulse Width
Input Pulse Rise and Fall Time
Maximum Clock Input Frequency
Propagation Delay Time
Minimum Reset Pulse Width
Reset Removal Time
n + 1
Parameter
DD
= 0.3%/ C values, all input rise and fall time = 20ns).
Test Conditions
amb
= 25 C, C
V
L
D D
= 50pF, R
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
5
5
5
5
5
5
5
5
5
(V) Min.
HCC/HCF4020B/24B/40B
3.5
12
8
L
= 200k ,
Unlimited
Value
Typ.
180
100
100
140
100
175
80
65
40
30
50
40
70
30
20
16
24
60
50
40
30
75
50
7
Max.
360
160
130
200
200
100
140
280
120
100
200
350
150
100
80
60
80
60
40
80
60
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
s
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