SN54HC21_06 Datasheet, PDF (1/14 Pages) Texas Instruments – DUAL 4-INPUT POSITIVE-AND GATES

D Wide Operating Voltage Range of 2 V to 6 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 20-µA Max I_CC
SN54HC21 . . . J OR W PACKAGE
SN74HC21 . . . D, N, NS, OR PW PACKAGE
(TOP VIEW)
1A 1
1B 2
NC 3
1C ⁴
1D ⁵
1Y ⁶
GND ⁷
14 V_CC
13 2D
12 2C
11 _NC
10 _2B
9 _2A
8 _2Y
SN54HC21, SN74HC21
DUAL 4-INPUT POSITIVE-AND GATES
SCLS087E – DECEMBER 1982 – REVISED AUGUST 2003
D Typical t_pd = 11 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
SN54HC21 . . . FK PACKAGE
(TOP VIEW)
NC
3 2 1 20 19
4
18
2C
NC 5
17 NC
1C 6
16 NC
NC 7
15 NC
1D 8
14 2B
9 10 11 12 13
NC – No internal connection
description/ordering information
These devices contain two independent 4-input AND gates. They perform the Boolean function
+ + ) ) ) Y A • B • C • D or Y A B C D in positive logic.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube of 25
SN74HC21N
SN74HC21N
Tube of 50
SN74HC21D
SOIC – D
Reel of 2500 SN74HC21DR
HC21
–40°C to 85°C
SOP – NS
Reel of 250
Reel of 2000
SN74HC21DT
SN74HC21NSR
HC21
Tube of 90
SN74HC21PW
TSSOP – PW
Reel of 2000 SN74HC21PWR
HC21
Reel of 250
SN74HC21PWT
CDIP – J
–55°C to 125°C CFP – W
Tube of 25
Tube of 150
SNJ54HC21J
SNJ54HC21W
SNJ54HC21J
SNJ54HC21W
LCCC – FK
Tube of 55
SNJ54HC21FK
SNJ54HC21FK
† _{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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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