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Part Name
Description
HD74HC4020 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
View to exact match
HD74HC4020
14-stage Binary Counter
Renesas Electronics
HD74HC4020 Datasheet PDF : 9 Pages
1
2
3
4
5
6
7
8
9
HD74HC4020
Switching Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Item
Maximum clock
frequency
Propagation delay
time
Removal time
Pulse width
Output rise/fall
time
Input capacitance
Symbol V
CC
(V)
f
max
2.0
4.5
6.0
t
PLH
2.0
t
PHL
4.5
6.0
t
PLH
2.0
t
PHL
4.5
6.0
t
PLH
2.0
t
PHL
4.5
6.0
t
PLH
2.0
t
PHL
4.5
6.0
t
rem
2.0
4.5
6.0
t
w
2.0
4.5
6.0
t
TLH
2.0
t
THL
4.5
6.0
Cin
—
Ta = 25
°
C
Min Typ Max
—— 5
— — 25
— — 29
— — 175
— 14 35
— — 30
— — 175
— 14 35
— — 30
— — 200
— 18 40
— — 34
— — 100
— — 20
— — 17
100 — —
20 6 —
17 — —
80 — —
16 4 —
14 — —
— — 75
—
5
15
— — 13
—
5
10
Ta = –40 to +85
°
C
Min
Max Unit
Test Conditions
—
4 MHz
—
20
—
24
—
220 ns Clock to Q
1
—
44
—
37
—
220 ns Clock to Q
1
—
44
—
37
—
250 ns Reset to output
—
50
—
43
—
125
ns Q
n
to Q
n – 1
—
25
—
21
125
—
ns
25
—
21
—
100
—
ns
20
—
17
—
—
95
ns
—
19
—
16
—
10
pF
Test Circuit
V
CC
V
CC
Input
Pulse Generator
Z
out
= 50
Ω
Input
Pulse Generator
Z
out
= 50
Ω
Clock
Q
1
Reset
Q
14
Output
Output
C
L
= 50 pF
C
L
= 50 pF
Note : 1. C
L
includes probe and jig capacitance.
Rev.2.00 Mar 30, 2006 page 4 of 6
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