SN54AS21FH-00 [TI]
AS SERIES, DUAL 4-INPUT AND GATE, CQCC20;型号: | SN54AS21FH-00 |
厂家: | TEXAS INSTRUMENTS |
描述: | AS SERIES, DUAL 4-INPUT AND GATE, CQCC20 输入元件 逻辑集成电路 |
文件: | 总17页 (文件大小:844K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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ꢋꢌꢄ ꢅꢉꢃ ꢍꢎ ꢁꢏꢌ ꢐꢉ ꢏꢑ ꢀꢎ ꢐ ꢎꢒꢓ ꢍꢄꢁꢋ ꢉꢔ ꢄꢐꢓ
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SDAS085B − APRIL 1982 − REVISED DECEMBER 1994
SN54ALS21A, SN54AS21 . . . J PACKAGE
SN74ALS21A, SN74AS21 . . . D OR N PACKAGE
(TOP VIEW)
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
1A
1B
NC
1C
1D
1Y
V
CC
1
2
3
4
5
6
7
14
13
12
11
10
9
2D
2C
NC
2B
2A
2Y
description
These devices contain two independent 4-input
positive-AND gates. They perform the Boolean
functions Y = A • B • C • D or Y = A + B + C + D
in positive logic.
GND
8
The SN54ALS21A and SN54AS21 are
characterized for operation over the full military
temperature range of −55°C to 125°C. The
SN74ALS21A and SN74AS21 are characterized
for operation from 0°C to 70°C.
SN54ALS21A, SN54AS21 . . . FK PACKAGE
(TOP VIEW)
3
2
1
20 19
18
FUNCTION TABLE
(each gate)
NC
NC
1C
NC
1D
4
5
6
7
8
2C
NC
NC
NC
2B
17
16
15
14
INPUTS
OUTPUT
Y
A
H
L
B
C
H
X
X
L
D
H
X
X
X
L
H
X
L
H
L
L
L
L
9 10 11 12 13
X
X
X
X
X
X
NC − No internal connection
†
logic symbol
logic diagram (positive logic)
1
1
&
1A
1A
2
2
1B
1B
4
6
6
1Y
4
5
1Y
2Y
1C
1D
1C
5
1D
9
2A
9
2A
10
2B
8
10
12
2B
2C
8
12
2Y
2C
13
2D
13
2D
†
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.
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Copyright 1994, Texas Instruments Incorporated
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢀꢆ ꢇ ꢄꢈ ꢉ ꢀ ꢁꢂ ꢃꢄ ꢀ ꢆ ꢇ ꢈꢉ ꢀ ꢁꢊ ꢃ ꢄ ꢅꢀ ꢆ ꢇ ꢄꢈꢉ ꢀꢁꢊ ꢃꢄꢀ ꢆꢇ
ꢋ ꢌ ꢄꢅꢉ ꢃ ꢍꢎ ꢁꢏ ꢌꢐ ꢉ ꢏꢑ ꢀ ꢎ ꢐꢎ ꢒ ꢓꢍꢄ ꢁ ꢋꢉ ꢔꢄꢐꢓ ꢀ
SDAS085B − APRIL 1982 − REVISED DECEMBER 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Operating free-air temperature range, T : SN54ALS21A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C
A
SN74ALS21A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” 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 “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54ALS21A
MIN NOM MAX
SN74ALS21A
MIN NOM MAX
UNIT
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Operating free-air temperature
IH
0.8
−0.4
4
0.8
−0.4
8
V
IL
I
I
mA
mA
°C
OH
OL
T
A
−55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS21A
SN74ALS21A
PARAMETER
TEST CONDITIONS
I = −18 mA
UNIT
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
= 4.5 V,
−1.5
−1.5
V
V
IK
CC
I
= 4.5 V to 5.5 V,
I
I
I
= −0.4 mA
= 4 mA
V
−2
V
−2
OH
CC
OH
OL
OL
CC
CC
0.25
0.4
0.25
0.35
0.4
0.5
V
OL
V
CC
= 4.5 V
V
= 8 mA
I
I
I
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
V = 7 V
0.1
20
0.1
mA
µA
I
I
V = 2.7 V
I
20
IH
IL
V = 0.4 V
I
−0.1
−112
1.4
−0.1
−112
1.4
mA
mA
mA
mA
§
V
O
= 2.25 V
−20
−30
O
V = 4.5 V
I
0.85
1.4
0.85
1.4
CCH
CCL
V = 0
I
2.3
2.3
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
switching characteristics (see Figure 1)
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
¶
PARAMETER
(INPUT)
UNIT
T
A
= MIN to MAX
SN54ALS21A SN74ALS21A
MIN
4
MAX
18
MIN
4
MAX
15
t
t
PLH
A, B, C, or D
Y
ns
2
15
2
10
PHL
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
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SDAS085B − APRIL 1982 − REVISED DECEMBER 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Operating free-air temperature range, T : SN54AS21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C
A
SN74AS21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” 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 “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54AS21
SN74AS21
UNIT
MIN NOM
MAX
MIN NOM
MAX
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Operating free-air temperature
IH
0.8
−2
0.8
−2
20
70
V
IL
I
I
mA
mA
°C
OH
20
OL
T
A
−55
125
0
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54AS21
SN74AS21
PARAMETER
TEST CONDITIONS
I = −18 mA
UNIT
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5 V,
−1.2
−1.2
V
IK
I
= 4.5 V to 5.5 V,
= 4.5 V,
I
= −2 mA
= 20 mA
V
CC
−2
V −2
CC
V
OH
OL
OH
OL
I
0.35
0.5
0.1
0.35
0.5
0.1
V
I
I
I
I
I
I
= 5.5 V,
V = 7 V
I
mA
µA
mA
mA
mA
mA
I
= 5.5 V,
V = 2.7 V
I
20
20
IH
IL
= 5.5 V,
V = 0.4 V
I
−0.5
−112
4.6
−0.5
−112
4.6
§
= 5.5 V,
V
O
= 2.25 V
−30
−30
O
= 5.5 V,
V = 4.5 V
I
2.9
7.4
2.9
7.4
CCH
CCL
= 5.5 V,
V = 0
I
12
12
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
switching characteristics (see Figure 1)
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
¶
PARAMETER
(INPUT)
UNIT
T
A
= MIN to MAX
SN54AS21
SN74AS21
MIN
1
MAX
MIN
1
MAX
t
t
6.5
6.5
6
6
PLH
A, B, C, or D
Y
ns
1
1
PHL
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢀꢆ ꢇ ꢄꢈ ꢉ ꢀ ꢁꢂ ꢃꢄ ꢀ ꢆ ꢇ ꢈꢉ ꢀ ꢁꢊ ꢃ ꢄ ꢅꢀ ꢆ ꢇ ꢄꢈꢉ ꢀꢁꢊ ꢃꢄꢀ ꢆꢇ
ꢋ ꢌ ꢄꢅꢉ ꢃ ꢍꢎ ꢁꢏ ꢌꢐ ꢉ ꢏꢑ ꢀ ꢎ ꢐꢎ ꢒ ꢓꢍꢄ ꢁ ꢋꢉ ꢔꢄꢐꢓ ꢀ
SDAS085B − APRIL 1982 − REVISED DECEMBER 1994
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
7 V
R
= R1 = R2
V
CC
L
S1
R1
R
L
Test
Point
From Output
Under Test
From Output
Under Test
Test
Point
Test
Point
From Output
Under Test
C
C
L
R
L
R2
L
C
L
(see Note A)
(see Note A)
(see Note A)
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3.5 V
3.5 V
Timing
Input
High-Level
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
0.3 V
t
t
w
h
t
su
3.5 V
3.5 V
0.3 V
Data
Input
Low-Level
1.3 V
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATIONS
3.5 V
Output
Control
(low-level
enabling)
1.3 V
1.3 V
0.3 V
3.5 V
t
PZL
Input
1.3 V
1.3 V
t
PLZ
0.3 V
PHL
[3.5 V
t
Waveform 1
S1 Closed
(see Note B)
t
PLH
1.3 V
V
OH
In-Phase
Output
1.3 V
1.3 V
1.3 V
V
OL
V
OL
0.3 V
t
PHZ
t
PLH
t
PZH
t
PHL
V
OH
V
Waveform 2
S1 Open
(see Note B)
OH
OL
Out-of-Phase
Output
(see Note C)
1.3 V
1.3 V
0.3 V
V
[0 V
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A. includes probe and jig capacitance.
C
L
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR ≤ 1 MHz, t = t = 2 ns, duty cycle = 50%.
r
f
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
5962-87804012A
5962-8780401CA
5962-8780401DA
84143012A
OBSOLETE
OBSOLETE
OBSOLETE
ACTIVE
LCCC
CDIP
CFP
FK
J
20
14
14
20
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
-55 to 125
-55 to 125
-55 to 125
-55 to 125
W
FK
Call TI
Call TI
LCCC
1
POST-PLATE
N / A for Pkg Type
84143012A
SNJ54ALS
21AFK
8414301CA
8414301DA
ACTIVE
ACTIVE
ACTIVE
CDIP
CFP
J
W
J
14
14
14
1
1
1
TBD
TBD
A42
A42
A42
N / A for Pkg Type
N / A for Pkg Type
N / A for Pkg Type
-55 to 125
-55 to 125
-55 to 125
8414301CA
SNJ54ALS21AJ
8414301DA
SNJ54ALS21AW
SN54ALS21AJ
CDIP
TBD
TBD
SN54ALS21AJ
SN54AS21J
OBSOLETE
ACTIVE
CDIP
SOIC
J
14
14
Call TI
Call TI
-55 to 125
0 to 70
SN74ALS21AD
D
50
50
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
ALS21A
SN74ALS21ADE4
SN74ALS21ADG4
SN74ALS21ADR
SN74ALS21ADRE4
SN74ALS21ADRG4
SN74ALS21AN
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOIC
SOIC
SOIC
SOIC
SOIC
PDIP
PDIP
SO
D
D
14
14
14
14
14
14
14
14
14
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
N / A for Pkg Type
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
ALS21A
50
Green (RoHS
& no Sb/Br)
ALS21A
D
2500
2500
2500
25
Green (RoHS
& no Sb/Br)
ALS21A
D
Green (RoHS
& no Sb/Br)
ALS21A
D
Green (RoHS
& no Sb/Br)
ALS21A
N
Pb-Free
(RoHS)
SN74ALS21AN
SN74ALS21AN
ALS21A
SN74ALS21ANE4
SN74ALS21ANSR
SN74ALS21ANSRE4
N
25
Pb-Free
(RoHS)
N / A for Pkg Type
NS
NS
2000
2000
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
Level-1-260C-UNLIM
SO
Green (RoHS
& no Sb/Br)
ALS21A
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
0 to 70
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
SN74ALS21ANSRG4
SN74AS21D
ACTIVE
SO
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
PDIP
PDIP
SO
NS
14
14
14
14
14
14
14
14
14
14
14
14
20
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
POST-PLATE
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
N / A for Pkg Type
ALS21A
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
D
D
50
50
Green (RoHS
& no Sb/Br)
0 to 70
AS21
SN74AS21DE4
SN74AS21DG4
SN74AS21DR
Green (RoHS
& no Sb/Br)
0 to 70
AS21
D
50
Green (RoHS
& no Sb/Br)
0 to 70
AS21
D
2500
2500
2500
25
Green (RoHS
& no Sb/Br)
0 to 70
AS21
SN74AS21DRE4
SN74AS21DRG4
SN74AS21N
D
Green (RoHS
& no Sb/Br)
0 to 70
AS21
D
Green (RoHS
& no Sb/Br)
0 to 70
AS21
N
Pb-Free
(RoHS)
0 to 70
SN74AS21N
SN74AS21N
74AS21
74AS21
74AS21
SN74AS21NE4
SN74AS21NSR
SN74AS21NSRE4
SN74AS21NSRG4
SNJ54ALS21AFK
N
25
Pb-Free
(RoHS)
N / A for Pkg Type
0 to 70
NS
NS
NS
FK
2000
2000
2000
1
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
N / A for Pkg Type
0 to 70
SO
Green (RoHS
& no Sb/Br)
0 to 70
SO
Green (RoHS
& no Sb/Br)
0 to 70
LCCC
TBD
-55 to 125
84143012A
SNJ54ALS
21AFK
SNJ54ALS21AJ
SNJ54ALS21AW
ACTIVE
CDIP
CFP
J
14
14
1
TBD
TBD
A42
N / A for Pkg Type
Call TI
-55 to 125
-55 to 125
8414301CA
SNJ54ALS21AJ
OBSOLETE
W
Call TI
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21 :
Catalog: SN74ALS21A, SN74AS21
•
Military: SN54ALS21A, SN54AS21
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Military - QML certified for Military and Defense Applications
•
Addendum-Page 3
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
SN74ALS21ADR
SN74ALS21ANSR
SN74AS21DR
SOIC
SO
D
NS
D
14
14
14
14
2500
2000
2500
2000
330.0
330.0
330.0
330.0
16.4
16.4
16.4
16.4
6.5
8.2
6.5
8.2
9.0
10.5
9.0
2.1
2.5
2.1
2.5
8.0
12.0
8.0
16.0
16.0
16.0
16.0
Q1
Q1
Q1
Q1
SOIC
SO
SN74AS21NSR
NS
10.5
12.0
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
SN74ALS21ADR
SN74ALS21ANSR
SN74AS21DR
SOIC
SO
D
NS
D
14
14
14
14
2500
2000
2500
2000
367.0
367.0
367.0
367.0
367.0
367.0
367.0
367.0
38.0
38.0
38.0
38.0
SOIC
SO
SN74AS21NSR
NS
Pack Materials-Page 2
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