ꢀꢁꢂ ꢃ ꢄꢅ ꢃ ꢆꢇ ꢆ ꢈ ꢀꢁ ꢉꢃ ꢄꢅ ꢃꢆ ꢇꢆ
ꢊ ꢃ ꢋꢌꢍ ꢎ ꢏꢀ ꢐꢁꢅꢄꢑ ꢒꢁ ꢒꢓ ꢀ ꢌꢍ ꢁꢏꢑꢐ ꢅꢒ ꢓ ꢁꢎ ꢔꢑ ꢀ
SCLS158E − DECEMBER 1982 − REVISED SEPTEMBER 2003
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
D
D
D
Typical t = 12 ns
pd
4-mA Output Drive at 5 V
Low Power Consumption, 80-µA Max I
Low Input Current of 1 µA Max
CC
SN54HC4020 . . . FK PACKAGE
(TOP VIEW)
SN54HC4020 . . . J OR W PACKAGE
SN74HC4020 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
Q
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
L
3
2
1
20 19
18
Q
Q
Q
Q
Q
M
K
J
H
I
Q
Q
Q
4
5
6
7
8
J
N
Q
N
Q
17
16
15
14
H
F
Q
F
E
NC
NC
Q
Q
I
CLR
Q
E
Q
CLR
CLK
G
Q
G
Q
9 10 11 12 13
D
GND
Q
A
NC − No internal connection
description/ordering information
The ’HC4020 devices are 14-stage binary ripple-carry counters that advance on the negative-going edge of the
clock pulse. The counters are reset to zero (all outputs low) independently of the clock (CLK) input when the
clear (CLR) input goes high.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube of 25
Tube of 40
Reel of 2500
Reel of 250
Reel of 2000
Reel of 2000
Tube of 90
Reel of 2000
Reel of 250
Tube of 25
Tube of 150
Tube of 55
SN74HC4020N
SN74HC4020N
SN74HC4020D
SN74HC4020DR
SN74HC4020DT
SN74HC4020NSR
SN74HC4020DBR
SN74HC4020PW
SN74HC4020PWR
SN74HC4020PWT
SNJ54HC4020J
SNJ54HC4020W
SNJ54HC4020FK
HC4020
SOP − NS
HC4020
HC4020
−40°C to 85°C
SSOP − DB
TSSOP − PW
HC4020
CDIP − J
CFP − W
LCCC − FK
SNJ54HC4020J
SNJ54HC4020W
SNJ54HC4020FK
−55°C to 125°C
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated
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