HITACHI HD74HC4020

HD74HC4020
14-stage Binary Counter
Description
The HD74HC4020 is a 14 stage counter. This device is incremented on the falling edge (negative
transition) of the input clock, and all its output is reset to a low level by applying a logical high on its reset
input.
Features
•
•
•
•
•
High Speed Operation: tpd (Clock to Q1) = 14 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
Clock
X
Reset
Outputs State
L
No change
L
Advance to next state
H
All output are low
HD74HC4020
Pin Arrangement
Q12
1
16 VCC
Q13
2
Q13
Q14
3
Q6
Q12
Q11
15 Q11
Q14
Q10
14 Q10
4
Q6
Q8
13 Q8
Q5
5
Q5
Q9
12 Q9
Q7
6
Q7
R
11 Reset
Q4
7
Q4
C
10 Clock
GND
8
Q1
9
Q1
(Top view)
Block Diagram
Q1
Clock
Reset
2
Q4
Q5
Q12
Q13
Q14
C Q
C Q
C Q
C Q
C Q
C Q
C Q
R
C Q
R
C Q
R
C Q
R
C Q
R
C Q
R
HD74HC4020
Timing Diagram
Clock
1
2
4
8
16
32
64
128
256
512
1,024 2,048 4,096
8,192 16,384
Reset
Q1
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
3
HD74HC4020
DC Characteristics
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Input voltage
VIH
2.0
1.5 —
—
1.5
—
V
4.5
3.15 —
—
3.15
—
6.0
4.2 —
—
4.2
—
2.0
—
—
0.5
—
0.5
4.5
—
—
1.35 —
1.35
6.0
—
—
1.8
—
1.8
2.0
1.9 2.0 —
1.9
—
4.5
4.4 4.5 —
4.4
—
6.0
5.9 6.0 —
5.9
—
4.5
4.18 —
—
4.13
—
I OH = –4 mA
6.0
5.68 —
—
5.63
—
I OH = –5.2 mA
2.0
—
0.0 0.1
—
0.1
4.5
—
0.0 0.1
—
0.1
6.0
—
0.0 0.1
—
0.1
4.5
—
—
0.26 —
0.33
I OL = 4 mA
6.0
—
—
0.26 —
0.33
I OL = 5.2 mA
VIL
Output voltage
VOH
VOL
Test Conditions
V
V
V
Vin = VIH or VIL I OH = –20 µA
Vin = VIH or VIL I OL = 20 µA
Input current
Iin
6.0
—
—
±0.1 —
±1.0
µA
Vin = VCC or GND
Quiescent supply
current
I CC
6.0
—
—
4.0
40
µA
Vin = VCC or GND, Iout = 0 µA
4
—
HD74HC4020
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Maximum clock
f max
2.0
—
—
5
—
4
MHz
4.5
—
—
25
—
20
6.0
—
—
29
—
24
Propagation delay t PLH
2.0
—
—
175 —
220
time
4.5
—
14
35
—
44
6.0
—
—
30
—
37
t PLH
2.0
—
—
175 —
220
t PHL
4.5
—
14
35
—
44
6.0
—
—
30
—
37
t PLH
2.0
—
—
200 —
250
t PHL
4.5
—
18
40
—
50
6.0
—
—
34
—
43
t PLH
2.0
—
—
100 —
125
t PHL
4.5
—
—
20
—
25
6.0
—
—
17
—
21
2.0
100 —
—
125
—
4.5
20
6
—
25
—
6.0
17
—
—
21
—
2.0
80
—
—
100
—
4.5
16
4
—
20
—
6.0
14
—
—
17
—
frequency
Removal time
Pulse width
t PHL
t rem
tw
Output rise/fall
t TLH
2.0
—
—
75
—
95
time
t THL
4.5
—
5
15
—
19
6.0
—
—
13
—
16
—
—
5
10
—
10
Input capacitance
Cin
Test Conditions
ns
Clock to Q1
ns
Clock to Q1
ns
Reset to output
ns
Qn to Q n – 1
ns
ns
ns
pF
5
Unit: mm
19.20
20.00 Max
1
7.40 Max
9
6.30
16
8
1.3
0.48 ± 0.10
2.54 Min 5.06 Max
2.54 ± 0.25
0.51 Min
1.11 Max
7.62
+ 0.13
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-16
Conforms
Conforms
1.07 g
Unit: mm
10.06
10.5 Max
9
1
8
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
16
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DA
—
Conforms
0.24 g
Unit: mm
9.9
10.3 Max
9
1
8
0.635 Max
*0.42 ± 0.08
0.40 ± 0.06
0.15
*0.22 ± 0.03
0.20 ± 0.03
1.27
0.11
0.14 +– 0.04
1.75 Max
3.95
16
0.10
6.10 +– 0.30
1.08
0° – 8°
0.67
0.60 +– 0.20
0.25 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DN
Conforms
Conforms
0.15 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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