SN54155, SN54156, SN54LS155A, SN54LS156,
SN74155, SN74156, SN74LS155A, SN74LS156
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 1988, 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.
SN54155, SN54156, SN54LS155A, SN54LS156,
SN74155, SN74156, SN74LS155A, SN74LS156
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
2POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SN54155, SN54156, SN54LS155A, SN54LS156,
SN74155, SN74156, SN74LS155A, SN74LS156
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SN54155, SN54156, SN54LS155A, SN54LS156,
SN74155, SN74156, SN74LS155A, SN74LS156
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
4POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SN54155A, SN74155A
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
5
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SN54LS155A, SN74LS155A
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
6POST OFFICE BOX 655303 DALLAS, TEXAS 75265
SN54LS156A, SN74LS156A
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDLS057 – MARCH 1974 – REVISED MARCH 1988
7
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
5962-9750801Q2A ACTIVE LCCC FK 20 1 TBD Call TI Call TI
5962-9750801QEA ACTIVE CDIP J 16 1 TBD Call TI Call TI
5962-9750801QEA ACTIVE CDIP J 16 1 TBD Call TI Call TI
5962-9750801QFA ACTIVE CFP W 16 1 TBD Call TI Call TI
5962-9750801QFA ACTIVE CFP W 16 1 TBD Call TI Call TI
SN54155J OBSOLETE CDIP J 16 TBD Call TI Call TI
SN54155J OBSOLETE CDIP J 16 TBD Call TI Call TI
SN54LS155AJ ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SN54LS155AJ ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SN54LS156J ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SN54LS156J ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SN74155N OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74155N OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74155N3 OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74155N3 OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74156N OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74156N OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74LS155AD ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155AD ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADE4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADE4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADG4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADG4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADR ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 2
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
SN74LS155ADR ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADRE4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADRE4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADRG4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ADRG4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155AN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS155AN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS155ANE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS155ANE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS155ANSR ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ANSR ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ANSRE4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ANSRE4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ANSRG4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS155ANSRG4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156D ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156D ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DE4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DE4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 3
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
SN74LS156DG4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DG4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DR ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DR ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DRE4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DRE4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DRG4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156DRG4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156N ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS156N ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS156N3 OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74LS156N3 OBSOLETE PDIP N 16 TBD Call TI Call TI
SN74LS156NE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS156NE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74LS156NSR ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156NSR ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156NSRE4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156NSRE4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156NSRG4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74LS156NSRG4 ACTIVE SO NS 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SNJ54155J OBSOLETE CDIP J 16 TBD Call TI Call TI
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 4
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
SNJ54155J OBSOLETE CDIP J 16 TBD Call TI Call TI
SNJ54155W OBSOLETE CFP W 16 TBD Call TI Call TI
SNJ54155W OBSOLETE CFP W 16 TBD Call TI Call TI
SNJ54LS155AFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type
SNJ54LS155AFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type
SNJ54LS155AJ ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SNJ54LS155AJ ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SNJ54LS155AW ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type
SNJ54LS155AW ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type
SNJ54LS156FK OBSOLETE LCCC FK 20 TBD Call TI Call TI
SNJ54LS156FK OBSOLETE LCCC FK 20 TBD Call TI Call TI
SNJ54LS156J ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SNJ54LS156J ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SNJ54LS156W ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type
SNJ54LS156W ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type
(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) 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.
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 5
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 SN54155, SN54LS155A, SN54LS156, SN74155, SN74LS155A, SN74LS156 :
Catalog: SN74155, SN74LS155A, SN74LS156
Military: SN54155, SN54LS155A, SN54LS156
NOTE: Qualified Version Definitions:
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
SN74LS155ADR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1
SN74LS155ANSR SO NS 16 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1
SN74LS156DR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1
SN74LS156NSR SO NS 16 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
SN74LS155ADR SOIC D 16 2500 333.2 345.9 28.6
SN74LS155ANSR SO NS 16 2000 367.0 367.0 38.0
SN74LS156DR SOIC D 16 2500 333.2 345.9 28.6
SN74LS156NSR SO NS 16 2000 367.0 367.0 38.0
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 2
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