Texas Instruments JM38510-33004BDA, JM38510-33004BCA, JM38510-33004B2A, SN54F20J, SN74F20D Datasheet
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SN54F20, SN74F20 DUAL 4-INPUT POSITIVE-NAND GATES
SDFS041A ± MARCH 1987 ± REVISED OCTOBER 1993
•Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
description
These devices contain two independent 4-input NAND gates. They perform the Boolean functions Y = A •B •C •D or Y = A + B + C + D in positive logic.
SN54F20 . . . J PACKAGE SN74F20 . . . D OR N PACKAGE (TOP VIEW)
1A |
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1 |
14 |
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VCC |
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1B |
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2 |
13 |
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2D |
NC |
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3 |
12 |
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2C |
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1C |
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4 |
11 |
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NC |
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1D |
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5 |
10 |
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2B |
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1Y |
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6 |
9 |
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2A |
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GND |
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7 |
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2Y |
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The SN54F20 is characterized for operation over |
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the full military temperature range of ±55°C to |
SN54F20 . . . FK PACKAGE |
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125°C. The SN74F20 is |
characterized |
for |
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(TOP VIEW) |
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operation from 0°C to 70°C. |
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1B 1A NC |
CC |
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FUNCTION TABLE |
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V 2D |
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(each gate) |
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NC |
3 |
2 1 |
20 19 |
2C |
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INPUTS |
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OUTPUT |
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4 |
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18 |
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NC |
5 |
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17 |
NC |
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A |
B |
C |
D |
Y |
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1C |
6 |
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16 |
NC |
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H |
H |
H |
H |
L |
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NC |
7 |
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15 |
NC |
L |
X |
X |
X |
H |
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1D |
8 |
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14 |
2B |
X |
L |
X |
X |
H |
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9 |
10 11 12 13 |
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1Y |
GND NC |
2Y 2A |
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X |
X |
X |
L |
H |
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X |
X |
L |
X |
H |
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NC ± No internal connection |
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logic symbol²
1 |
& |
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1A |
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2 |
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1B |
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6 |
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4 |
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1Y |
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1C |
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5 |
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1D |
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9 |
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2A |
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10 |
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2B |
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8 |
2Y |
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12 |
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2C |
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13 |
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2D |
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² This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages.
logic diagram, each gate (positive logic)
A
B
Y
C
D
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.
Copyright 1993, Texas Instruments Incorporated
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
2±1 |
SN54F20, SN74F20
DUAL 4-INPUT POSITIVE-NAND GATES
SDFS041A ± MARCH 1987 ± REVISED OCTOBER 1993
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)²
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . ±0.5 V to 7 V |
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. ±1.2 V to 7 V |
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±30 mA to 5 mA |
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±0.5 V to VCC |
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . 40 mA |
Operating free-air temperature range: SN54F20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±55°C to 125°C |
SN74F20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . 0°C to 70°C |
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±65°C to 150°C |
²Stresses beyond those listed under ªabsolute maximum ratingsº may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under ªrecommended operating conditionsº is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.
recommended operating conditions
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SN54F20 |
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SN74F20 |
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UNIT |
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MIN |
NOM |
MAX |
MIN |
NOM |
MAX |
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VCC |
Supply voltage |
4.5 |
5 |
5.5 |
4.5 |
5 |
5.5 |
V |
VIH |
High-level input voltage |
2 |
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2 |
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V |
VIL |
Low-level input voltage |
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0.8 |
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0.8 |
V |
IIK |
Input clamp current |
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± 18 |
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± 18 |
mA |
IOH |
High-level output current |
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± 1 |
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± 1 |
mA |
IOL |
Low-level output current |
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20 |
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20 |
mA |
TA |
Operating free-air temperature |
± 55 |
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125 |
0 |
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70 |
°C |
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER |
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TEST CONDITIONS |
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SN54F20 |
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SN74F20 |
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UNIT |
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MIN |
TYP³ |
MAX |
MIN |
TYP³ |
MAX |
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VIK |
VCC = 4.5 V, |
II = ± 18 mA |
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± 1.2 |
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± 1.2 |
V |
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VOH |
VCC = 4.5 V, |
IOH = ± 1 mA |
2.5 |
3.4 |
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2.5 |
3.4 |
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V |
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VCC = 4.75 V, |
IOH = ± 1 mA |
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2.7 |
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VOL |
VCC = 4.5 V, |
IOL = 20 mA |
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0.3 |
0.5 |
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0.3 |
0.5 |
V |
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II |
VCC = 5.5 V, |
VI = 7 V |
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0.1 |
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0.1 |
mA |
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IIH |
VCC = 5.5 V, |
VI = 2.7 V |
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20 |
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20 |
μA |
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IIL |
VCC = 5.5 V, |
VI = 0.5 V |
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± 0.6 |
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± 0.6 |
mA |
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IOS§ |
VCC = 5.5 V, |
VO = 0 |
± 60 |
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±150 |
± 60 |
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±150 |
mA |
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ICCH |
VCC = 5.5 V, |
VI = 0 |
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0.9 |
1.4 |
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0.9 |
1.4 |
mA |
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ICCL |
VCC = 5.5 V, |
VI = 4.5 V |
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3.4 |
5.1 |
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3.4 |
5.1 |
mA |
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³ All typical values are at V |
CC |
= 5 V, T |
= 25°C. |
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A |
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§ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
2±2 |
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
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