SN54LS377, SN54LS378, SN54LS379, SN74LS377, SN74LS378, SN74LS379 OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH ENABLE SDLS167 – OCTOBER 1976 – REVISED MARCH 1988 PRODUCTION DATA information is current as of publication date. Copyright  1988, Texas Instruments Incorporated 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 1

SN54LS377, SN54LS378, SN54LS379, SN74LS377, SN74LS378, SN74LS379 OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH ENABLE SDLS167 – OCTOBER 1976 – REVISED MARCH 1988 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54LS377, SN54LS378, SN54LS379, SN74LS377, SN74LS378, SN74LS379 OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH ENABLE SDLS167 – OCTOBER 1976 – REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3

SN54LS377, SN54LS378, SN54LS379, SN74LS377, SN74LS378, SN74LS379 OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH ENABLE SDLS167 – OCTOBER 1976 – REVISED MARCH 1988 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) 5962-8992501EA ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-8992501EA SNJ54LS378J JM38510/32504BRA ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BRA JM38510/32504BRA ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BRA JM38510/32504BSA ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BSA JM38510/32504BSA ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BSA M38510/32504BRA ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BRA M38510/32504BRA ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BRA M38510/32504BSA ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BSA M38510/32504BSA ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 JM38510/ 32504BSA SN54LS377J ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS377J SN54LS377J ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS377J SN54LS378J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS378J SN54LS378J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS378J SN54LS379J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS379J SN54LS379J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SN54LS379J SN74LS377DW ACTIVE SOIC DW 20 25 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS377 & no Sb/Br) SN74LS377DW ACTIVE SOIC DW 20 25 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS377 & no Sb/Br) SN74LS377DWR ACTIVE SOIC DW 20 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS377 & no Sb/Br) Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) SN74LS377DWR ACTIVE SOIC DW 20 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS377 & no Sb/Br) SN74LS377N ACTIVE PDIP N 20 20 Pb-Free NIPDAU N / A for Pkg Type 0 to 70 SN74LS377N (RoHS) SN74LS377N ACTIVE PDIP N 20 20 Pb-Free NIPDAU N / A for Pkg Type 0 to 70 SN74LS377N (RoHS) SN74LS377NE4 ACTIVE PDIP N 20 20 Pb-Free NIPDAU N / A for Pkg Type 0 to 70 SN74LS377N (RoHS) SN74LS377NE4 ACTIVE PDIP N 20 20 Pb-Free NIPDAU N / A for Pkg Type 0 to 70 SN74LS377N (RoHS) SN74LS377NSR ACTIVE SO NS 20 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 74LS377 & no Sb/Br) SN74LS377NSR ACTIVE SO NS 20 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 74LS377 & no Sb/Br) SN74LS378D ACTIVE SOIC D 16 40 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS378 & no Sb/Br) SN74LS378D ACTIVE SOIC D 16 40 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS378 & no Sb/Br) SN74LS378DR ACTIVE SOIC D 16 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS378 & no Sb/Br) SN74LS378DR ACTIVE SOIC D 16 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 LS378 & no Sb/Br) SN74LS378N ACTIVE PDIP N 16 25 Green (RoHS NIPDAU N / A for Pkg Type 0 to 70 SN74LS378N & no Sb/Br) SN74LS378N ACTIVE PDIP N 16 25 Green (RoHS NIPDAU N / A for Pkg Type 0 to 70 SN74LS378N & no Sb/Br) SNJ54LS377J ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS377J SNJ54LS377J ACTIVE CDIP J 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS377J SNJ54LS377W ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS377W SNJ54LS377W ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS377W SNJ54LS378J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-8992501EA SNJ54LS378J SNJ54LS378J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-8992501EA Addendum-Page 2

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) SNJ54LS378J SNJ54LS379FK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 SNJ54LS 379FK SNJ54LS379FK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 SNJ54LS 379FK SNJ54LS379J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS379J SNJ54LS379J ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 SNJ54LS379J (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/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish 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. Addendum-Page 3

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 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 SN54LS377, SN54LS378, SN74LS377, SN74LS378 : •Catalog: SN74LS377, SN74LS378 •Military: SN54LS377, SN54LS378 NOTE: Qualified Version Definitions: •Catalog - TI's standard catalog product •Military - QML certified for Military and Defense Applications Addendum-Page 4

PACKAGE MATERIALS INFORMATION www.ti.com 6-May-2017 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) SN74LS377DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN74LS377NSR SO NS 20 2000 330.0 24.4 8.4 13.0 2.5 12.0 24.0 Q1 SN74LS378DR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 6-May-2017 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) SN74LS377DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74LS377NSR SO NS 20 2000 367.0 367.0 45.0 SN74LS378DR SOIC D 16 2500 333.2 345.9 28.6 PackMaterials-Page2

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PACKAGE OUTLINE DW0020A SOIC - 2.65 mm max height SCALE 1.200 SOIC C 10.63 SEATING PLANE TYP 9.97 A PIN 1 ID 0.1 C AREA 18X 1.27 20 1 13.0 2X 12.6 11.43 NOTE 3 10 11 0.51 20X 7.6 0.31 2.65 MAX B 7.4 0.25 C A B NOTE 4 0.33 TYP 0.10 0.25 SEE DETAIL A GAGE PLANE 0.3 1.27 0 - 8 0.1 0.40 DETAIL A TYPICAL 4220724/A 05/2016 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. www.ti.com

EXAMPLE BOARD LAYOUT DW0020A SOIC - 2.65 mm max height SOIC 20X (2) SYMM 1 20 20X (0.6) 18X (1.27) SYMM (R0.05) TYP 10 11 (9.3) LAND PATTERN EXAMPLE SCALE:6X SOOPLEDNEINRG MASK METAL MSOELTDAEL RU NMDAESRK SOOPLEDNEINRG MASK 0.07 MAX 0.07 MIN ALL AROUND ALL AROUND NON SOLDER MASK SOLDER MASK DEFINED DEFINED SOLDER MASK DETAILS 4220724/A 05/2016 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. www.ti.com

EXAMPLE STENCIL DESIGN DW0020A SOIC - 2.65 mm max height SOIC 20X (2) SYMM 1 20 20X (0.6) 18X (1.27) SYMM 10 11 (9.3) SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:6X 4220724/A 05/2016 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. www.ti.com

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