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SN54LS138 Status: ACTIVE

3-Line To 8-Line Decoders/Demultiplexers


      
         
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Datasheet

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 SN54LS138SN74LS138 
Voltage Nodes(V)5  5  
Vcc range(V)4.5 to 5.5  4.75 to 5.25  
Input LevelTTL  TTL  
Output LevelTTL  TTL  
Output Drive(mA) -0.4/8  
Output2S  2S  
From3  3  
To8  8  
RatingMilitary  Catalog  
Technology FamilyLS  LS  
 SamplesSamples
 InventoryInventory

Other qualified versions of SN54LS138

Version Part Number Definition
Catalog SN74LS138 TI's standard catalog product
Space SN54LS138-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application

Customers Who Evaluated This Product Also Evaluated

  • SN74LS138: 3-line to 8-line decoder / demultiplexer
  • SN54LS245: Octal Bus Transceivers With 3-State Outputs
  • SN54LS08: Quadruple 2-Input Positive-AND Gates
  • SN54LS74A: Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And Clear

Product Information

Features

  • Designed Specifically for High-Speed:
    • Memory Decoders
    • Data Transmission Systems
  • 3 Enable Inputs to Simplify Cascading and/or Data Reception
  • Schottky-Clamped for High Performance

 

Description

These Schottky-clamped TTL MSI circuits are designed to be used in high-performance memory decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the Schottky-clamped system decoder is negligible.

The 'LS138, SN54S138, and SN74S138A decode one of eight lines dependent on the conditions at the three binary select inputs and the three enable inputs.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)DSCC #Price | QuantityPackage | PinsPackage QTY | Package CarrierFootprintsSamples
76005012AACTIVE-55 to 125 8.34 | 1kuLCCC (FK) | 20 1 | TUBE Download CAD Format for this FootprintPurchase Samples
7600501EAACTIVE-55 to 125 3.00 | 1kuCDIP (J) | 16 1 | TUBE Download CAD Format for this FootprintPurchase Samples
7600501FAACTIVE-55 to 125 5.86 | 1kuCFP (W) | 16 1 | TUBE Purchase Samples
JM38510/30701B2AACTIVE-55 to 125 12.13 | 1kuLCCC (FK) | 20 1 | TUBE Download CAD Format for this FootprintPurchase Samples
JM38510/30701BEAACTIVE-55 to 125 2.50 | 1kuCDIP (J) | 16 1 | TUBE Download CAD Format for this FootprintPurchase Samples
JM38510/30701BFAACTIVE-55 to 125 5.56 | 1kuCFP (W) | 16 1 | TUBE Purchase Samples
SN54LS138JACTIVE-55 to 125 2.80 | 1kuCDIP (J) | 16 1 | TUBE Download CAD Format for this FootprintPurchase Samples
SNJ54LS138FKACTIVE-55 to 12576005012A8.34 | 1kuLCCC (FK) | 20 1 | TUBE Download CAD Format for this FootprintPurchase Samples
SNJ54LS138JACTIVE-55 to 1257600501EA3.00 | 1kuCDIP (J) | 16 1 | TUBE Download CAD Format for this FootprintPurchase Samples
SNJ54LS138WACTIVE-55 to 1257600501FA5.86 | 1kuCFP (W) | 16 1 | TUBE Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:25 AM GMT, 24 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 6 Weeks76005012A
None Reported
View Distributors
TI Lead Time*: 6 Weeks7600501EA
AmericasArrow >1k
Avnet 423
TI Lead Time*: 6 Weeks7600501FA
AmericasAvnet 22
TI Lead Time*: 6 WeeksJM38510/30701B2A
AmericasArrow 21
Rochester Electronics 5
TI Lead Time*: 6 WeeksJM38510/30701BEA
AmericasArrow 950
EuropeEBV Elektronik 59
TI Lead Time*: 6 WeeksJM38510/30701BFA
AmericasArrow 60
Rochester Electronics 144
TI Lead Time*: 6 WeeksSN54LS138J
AmericasRochester Electronics 22
EuropeArrow Southern Europe 136
Avnet-SILICA 227
TI Lead Time*: 6 WeeksSNJ54LS138FK
AmericasArrow 36
TI Lead Time*: 6 WeeksSNJ54LS138J
EuropeAvnet-SILICA 30
TI Lead Time*: 6 WeeksSNJ54LS138W
None Reported
View Distributors
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
76005012A  TBD POST-PLATE N/A for Pkg TypeViewView
7600501EA  TBD A42  N/A for Pkg TypeViewView
7600501FA  TBD A42  N/A for Pkg TypeViewView
JM38510/30701B2A  TBD POST-PLATE N/A for Pkg TypeViewView
JM38510/30701BEA  TBD A42  N/A for Pkg TypeViewView
JM38510/30701BFA  TBD A42  N/A for Pkg TypeViewView
SN54LS138J  TBD A42  N/A for Pkg TypeViewView
SNJ54LS138FK  TBD POST-PLATE N/A for Pkg TypeViewView
SNJ54LS138J  TBD A42  N/A for Pkg TypeViewView
SNJ54LS138W  TBD A42  N/A for Pkg TypeViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for SN54LS138 Help

Datasheet

Application Notes

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Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
SN74LS138 3-line to 8-line decoder / demultiplexer DECODERS/ENCODERS/MULTIPLEXERS-DECODERS/DEMULTIPLEXERS TI customers also evaluated this product.
SN54LS245 Octal Bus Transceivers With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-STANDARD TRANSCEIVERS TI customers also evaluated this product.
SN54LS08 Quadruple 2-Input Positive-AND Gates GATES-AND GATES TI customers also evaluated this product.
SN54LS74A Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And Clear FLIP-FLOPS, LATCHES AND REGISTERS-D-TYPE FLIP-FLOPS TI customers also evaluated this product.
SN54LS164 8-Bit Parallel-Out Serial Shift Registers FLIP-FLOPS, LATCHES AND REGISTERS-SHIFT REGISTERS TI customers also evaluated this product.
SN54LS125A Quadruple Bus Buffer Gates With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-INVERTING BUFFERS AND DRIVERS TI customers also evaluated this product.
SN54LS257B Quadruple 2-Line To 1-Line Data Selectors/Multiplexers DECODERS/ENCODERS/MULTIPLEXERS-DATA SELECTORS/MULTIPLEXERS TI customers also evaluated this product.
SN54LS244 Octal Buffers And Line Drivers With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-INVERTING BUFFERS AND DRIVERS TI customers also evaluated this product.
SN54LS20 Dual 4-Input Positive-NAND Gates GATES-NAND GATES TI customers also evaluated this product.

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