SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUAR Y 1991 – REVISED JANUAR Y 1997
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D
State-of-the-Art
EPIC-
ΙΙ
B
BiCMOS Design
Significantly Reduces Power Dissipation
D
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D
Typical VOLP (Output Ground Bounce) < 1 V
at VCC = 5 V, TA = 25°C
D
High-Drive Outputs (–32-mA IOH, 64-mA IOL)
D
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Package
description
The ’ABT273 are 8-bit positive-edge-triggered
D-type flip-flops with a direct clear (CLR) input.
They are particularly suitable for implementing
buffer and storage registers, shift registers, and
pattern generators.
Information at the data (D) inputs meeting the
setup time requirements is transferred to the
Q outputs on the positive-going edge of the clock
pulse. Clock triggering occurs at a particular
voltage level and is not directly related to the
transition time of the positive-going pulse. When
the clock (CLK) input is at either the high or low
level, the D input signal has no effect at the output.
The SN54ABT273 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ABT273 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each flip-flop)
INPUTS OUTPUT
CLR CLK D
OUTPUT
Q
L X X L
HHH
HLL
HH or L X Q0
Copyright 1997, Texas Instruments Incorporated
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.
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.
EPIC-ΙΙB is a trademark of Texas Instruments Incorporated.
SN54ABT273 ...J OR W PACKAGE
SN74ABT273 . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
SN54ABT273 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2D
2Q
3Q
3D
4D
1D
1Q
CLR
5Q
5D 8Q
4Q
GND
CLK VCC
8D
7D
7Q
6Q
6D
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
CLR
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUAR Y 1991 – REVISED JANUAR Y 1997
2POST OFFICE BOX 655303 DALLAS, TEXAS 75265
logic symbol
1D
3
1D 4
2D 7
3D
R
1
1Q
2
2Q
5
3Q
6
8
4D 13
5D 14
6D
4Q
9
5Q
12
6Q
15
CLR
17
7D 18
8D
11
CLK
7Q
16
8Q
19
C1
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
CLK
1D
3
1D
C1
R
1Q2
2D
4
1D
C1
R
2Q5
3D
7
1D
C1
R
3Q6
4D
8
1D
C1
R
4Q9
5D
13
1D
C1
R
5Q12
6D
14
1D
C1
R
6Q15
7D
17
1D
C1
R
7Q16
8D
18
1D
C1
R
8Q19
CLR
11
1
CLK(I)
R
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, VO –0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: SN54ABT273 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT273 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 2): DB package 115°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 128°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg –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 af fect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages,
which use a trace length of zero.
SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUAR Y 1991 – REVISED JANUAR Y 1997
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ABT273 SN74ABT273
UNIT
MIN MAX MIN MAX
UNIT
VCC Supply voltage 4.5 5.5 4.5 5.5 V
VIH High-level input voltage 2 2 V
VIL Low-level input voltage 0.8 0.8 V
VIInput voltage 0 VCC 0 VCC V
IOH High-level output current –24 –32 mA
IOL Low-level output current 48 64 mA
t/vInput transition rise or fall rate 10 10 ns/V
TAOperating free-air temperature –55 125 –40 85 °C
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C SN54ABT273 SN74ABT273
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYPMAX MIN MAX MIN MAX
UNIT
VIK VCC = 4.5 V, II = –18 mA –1.2 –1.2 –1.2 V
VCC = 4.5 V, IOH = –3 mA 2.5 2.5 2.5
VOH
VCC = 5 V, IOH = –3 mA 3 3 3
V
V
OH
VCC =45V
IOH = –24 mA 2 2
V
V
CC =
4
.
5
V
IOH = –32 mA 2* 2
VOL
VCC =45V
IOL = 48 mA 0.55 0.55
V
V
OL
V
CC =
4
.
5
V
IOL = 64 mA 0.55* 0.55
V
Vhys 100 mV
IIVCC = 5.5 V, VI = VCC or GND ±1±1±1µA
Ioff VCC = 0, VI or VO 4.5 V ±100 ±100 µA
ICEX VCC = 5.5 V, VO = 5.5 V Outputs high 50 50 50 µA
IOVCC = 5.5 V, VO = 2.5 V –50 –100 –200§–50 –200§–50 –200§mA
ICC
V
CC
= 5.5 V, I
O
= 0, Outputs high 1 400§400§400§µA
I
CC
CC ,O,
VI = VCC or GND Outputs low 24 30 30 30 mA
ICCVCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND 1.5 1.5 1.5 mA
CiVI = 2.5 V or 0.5 V 7 pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
§This data sheet limit may vary among suppliers.
This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUAR Y 1991 – REVISED JANUAR Y 1997
4POST OFFICE BOX 655303 DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
VCC = 5 V,
TA = 25°CSN54ABT273 SN74ABT273 UNIT
MIN MAX MIN MAX MIN MAX
fclock Clock frequency 0 150 0 150 0 150 MHz
t
Pulse duration
CLK high or low 3.3 3.3 3.3
ns
t
w
P
u
lse
d
u
ration
CLR low 3.3 3.3 3.3
ns
Data high 2 2 2
tsu Setup time before CLK
Data low 2.5 2.5 2.5 ns
CLR high 2 2 2
thHold time after CLKData high or low 1.21.41.2ns
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER FROM
TO
(OUTPUT)
VCC = 5 V,
TA = 25°CSN54ABT273 UNIT
(OUTPUT)
MIN MAX MIN MAX
fmax 150 150 MHz
tPLH
Q
2.5 6 2.5 7
ns
tPHL
Q
3.3 6.8 3.3 7.5
ns
tPHL CLR Q 2.5 7.52.5 8.2 ns
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER FROM
TO
(OUTPUT)
VCC = 5 V,
TA = 25°CSN74ABT273 UNIT
(OUTPUT)
MIN MAX MIN MAX
fmax 150 150 MHz
tPLH
Q
2.5 6 2.5 6.5
ns
tPHL
Q
3.3 6.8 3.3 7.3
ns
tPHL CLR Q 2.5 6.72.5 7.4ns
This data sheet limit may vary among suppliers.
SN54ABT273, SN74ABT273
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR
SCBS185B – FEBRUAR Y 1991 – REVISED JANUAR Y 1997
5
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
1.5 V
th
tsu
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
7 V
Open
GND
500
500
Data Input
Timing Input 1.5 V 3 V
0 V
1.5 V 1.5 V
3 V
0 V
3 V
0 V
1.5 V
tw
Input
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
PULSE DURATION
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
1.5 V 1.5 V 3 V
0 V
1.5 V1.5 V
Input
1.5 V
Output
Control
Output
W aveform 1
S1 at 7 V
(see Note B)
Output
W aveform 2
S1 at Open
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V1.5 V
3.5 V
0 V
1.5 V VOL + 0.3 V
1.5 V VOH – 0.3 V
0 V
3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
Output
Output
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7 V
Open
TEST S1
Output
Control
NOTES: A. CL includes probe and jig capacitance.
B. W aveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
W aveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50 , tr 2. 5 n s , tf 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
1.5 V
Figure 1. Load Circuit and Voltage Waveforms
PACKAGE OPTION ADDENDUM
www.ti.com 21-Jan-2021
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead finish/
Ball material
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
5962-9321701Q2A ACTIVE LCCC FK 20 1 Non-RoHS
& Green POST-PLATE N / A for Pkg Type -55 to 125 5962-
9321701Q2A
SNJ54ABT
273FK
5962-9321701QRA ACTIVE CDIP J 20 1 Non-RoHS
& Green SNPB N / A for Pkg Type -55 to 125 5962-9321701QR
A
SNJ54ABT273J
5962-9321701QSA ACTIVE CFP W 20 1 Non-RoHS
& Green SNPB N / A for Pkg Type -55 to 125 5962-9321701QS
A
SNJ54ABT273W
SN74ABT273DBR ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AB273
SN74ABT273DBRG4 ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AB273
SN74ABT273DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ABT273
SN74ABT273DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ABT273
SN74ABT273DWRG4 ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ABT273
SN74ABT273N ACTIVE PDIP N 20 20 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 SN74ABT273N
SN74ABT273NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ABT273
SN74ABT273PW ACTIVE TSSOP PW 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AB273
SN74ABT273PWR ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AB273
SNJ54ABT273FK ACTIVE LCCC FK 20 1 Non-RoHS
& Green POST-PLATE N / A for Pkg Type -55 to 125 5962-
9321701Q2A
SNJ54ABT
273FK
SNJ54ABT273J ACTIVE CDIP J 20 1 Non-RoHS
& Green SNPB N / A for Pkg Type -55 to 125 5962-9321701QR
A
SNJ54ABT273J
SNJ54ABT273W ACTIVE CFP W 20 1 Non-RoHS
& Green SNPB N / A for Pkg Type -55 to 125 5962-9321701QS
A
SNJ54ABT273W
PACKAGE OPTION ADDENDUM
www.ti.com 21-Jan-2021
Addendum-Page 2
(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.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(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.
(6) Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
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 SN54ABT273, SN74ABT273 :
Catalog: SN74ABT273
Military: SN54ABT273
NOTE: Qualified Version Definitions:
PACKAGE OPTION ADDENDUM
www.ti.com 21-Jan-2021
Addendum-Page 3
Catalog - TI's standard catalog product
Military - QML certified for Military and Defense Applications
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
SN74ABT273DBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1
SN74ABT273DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1
SN74ABT273NSR SO NS 20 2000 330.0 24.4 8.4 13.0 2.5 12.0 24.0 Q1
SN74ABT273PWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 30-Dec-2020
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
SN74ABT273DBR SSOP DB 20 2000 853.0 449.0 35.0
SN74ABT273DWR SOIC DW 20 2000 367.0 367.0 45.0
SN74ABT273NSR SO NS 20 2000 367.0 367.0 45.0
SN74ABT273PWR TSSOP PW 20 2000 853.0 449.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 30-Dec-2020
Pack Materials-Page 2
www.ti.com
PACKAGE OUTLINE
C
TYP
10.63
9.97
2.65 MAX
18X 1.27
20X 0.51
0.31
2X
11.43
TYP
0.33
0.10
0 - 8
0.3
0.1
0.25
GAGE PLANE
1.27
0.40
A
NOTE 3
13.0
12.6
B7.6
7.4
4220724/A 05/2016
SOIC - 2.65 mm max heightDW0020A
SOIC
NOTES:
1. All linear dimensions are in millimeters. Dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
exceed 0.15 mm per side.
4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.43 mm per side.
5. Reference JEDEC registration MS-013.
120
0.25 C A B
11
10
PIN 1 ID
AREA
NOTE 4
SEATING PLANE
0.1 C
SEE DETAIL A
DETAIL A
TYPICAL
SCALE 1.200
www.ti.com
EXAMPLE BOARD LAYOUT
(9.3)
0.07 MAX
ALL AROUND
0.07 MIN
ALL AROUND
20X (2)
20X (0.6)
18X (1.27)
(R )
TYP
0.05
4220724/A 05/2016
SOIC - 2.65 mm max heightDW0020A
SOIC
SYMM
SYMM
LAND PATTERN EXAMPLE
SCALE:6X
1
10 11
20
NOTES: (continued)
6. Publication IPC-7351 may have alternate designs.
7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
METAL
SOLDER MASK
OPENING
NON SOLDER MASK
DEFINED
SOLDER MASK DETAILS
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
SOLDER MASK
DEFINED
www.ti.com
EXAMPLE STENCIL DESIGN
(9.3)
18X (1.27)
20X (0.6)
20X (2)
4220724/A 05/2016
SOIC - 2.65 mm max heightDW0020A
SOIC
NOTES: (continued)
8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
9. Board assembly site may have different recommendations for stencil design.
SYMM
SYMM
1
10 11
20
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
SCALE:6X
www.ti.com
PACKAGE OUTLINE
C
18X 0.65
2X
5.85
20X 0.38
0.22
8.2
7.4 TYP
SEATING
PLANE
0.05 MIN
0.25
GAGE PLANE
0 -8
2 MAX
B5.6
5.0
NOTE 4
A
7.5
6.9
NOTE 3
0.95
0.55
(0.15) TYP
SSOP - 2 mm max heightDB0020A
SMALL OUTLINE PACKAGE
4214851/B 08/2019
1
10 11
20
0.1 C A B
PIN 1 INDEX AREA
SEE DETAIL A
0.1 C
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
exceed 0.15 mm per side.
4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm per side.
5. Reference JEDEC registration MO-150.
A 15
DETAIL A
TYPICAL
SCALE 2.000
www.ti.com
EXAMPLE BOARD LAYOUT
0.07 MAX
ALL AROUND 0.07 MIN
ALL AROUND
20X (1.85)
20X (0.45)
18X (0.65)
(7)
(R0.05) TYP
SSOP - 2 mm max heightDB0020A
SMALL OUTLINE PACKAGE
4214851/B 08/2019
NOTES: (continued)
6. Publication IPC-7351 may have alternate designs.
7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE: 10X
SYMM
SYMM
1
10 11
20
15.000
METAL
SOLDER MASK
OPENING METAL UNDER
SOLDER MASK SOLDER MASK
OPENING
EXPOSED METAL
EXPOSED METAL
SOLDER MASK DETAILS
NON-SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK
DEFINED
www.ti.com
EXAMPLE STENCIL DESIGN
20X (1.85)
20X (0.45)
18X (0.65)
(7)
(R0.05) TYP
SSOP - 2 mm max heightDB0020A
SMALL OUTLINE PACKAGE
4214851/B 08/2019
NOTES: (continued)
8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
9. Board assembly site may have different recommendations for stencil design.
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
SCALE: 10X
SYMM
SYMM
1
10 11
20
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