ꢀꢁꢂ ꢃ ꢄꢅ ꢆ ꢇꢈ ꢀꢁ ꢉꢃ ꢄꢅ ꢆꢇ
ꢊꢋꢌ ꢍ ꢃ ꢎꢏꢁ ꢐꢋꢑ ꢐꢒ ꢀꢏ ꢑ ꢏꢓꢔ ꢎꢁꢌꢁꢊ ꢕ ꢌꢑꢔ ꢀ
SCLS086F − DECEMBER 1982 − REVISED AUGUST 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 = 11 ns
pd
4-mA Output Drive at 5 V
Low Power Consumption, 20-µA Max I
Low Input Current of 1 µA Max
CC
SN54HC20 . . . FK PACKAGE
(TOP VIEW)
SN54HC20 . . . J OR W PACKAGE
SN74HC20 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
1A
1B
14
13
12
11
10
9
V
CC
3
2
1
20 19
18
2D
2C
NC
2B
2A
2Y
2C
NC
NC
NC
NC
1C
NC
1D
4
5
6
7
8
NC
1C
17
16
1D
15 NC
14
9 10 11 12 13
1Y
2B
8
GND
NC − No internal connection
description/ordering information
The ’HC20 devices contain two independent 4-input NAND gates. They perform the Boolean function
Y = A • B • C • D or Y = A + B + C + D in positive logic.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube of 25
Tube of 50
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
SN74HC20N
SN74HC20N
SN74HC20D
SN74HC20DR
SN74HC20DT
SN74HC20NSR
SN74HC20DBR
SN74HC20PW
SN74HC20PWR
SN74HC20PWT
SNJ54HC20J
SNJ54HC20W
SNJ54HC20FK
HC20
SOP − NS
HC20
HC20
−40°C to 85°C
SSOP − DB
TSSOP − PW
HC20
CDIP − J
CFP − W
LCCC − FK
SNJ54HC20J
SNJ54HC20W
SNJ54HC20FK
−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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