SN74ALS259 Status: ACTIVE

Octal Addressable Latches


      
         
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Datasheet

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 SN54ALS259 SN74ALS259
Voltage Nodes(V)5  5  
Vcc range(V)4.5 to 5.5  4.5 to 5.5  
Input LevelTTL  TTL  
Output LevelTTL  TTL  
Output Drive(mA) -0.4/8  
Output2S  2S  
No. of Bits8  8  
th(ns)0  0  
tpd max(ns) 19  
tsu(ns) 15  
RatingMilitary  Catalog  
Technology FamilyALS  ALS  
 SamplesSamples
 InventoryInventory

Other qualified versions of SN74ALS259

Version Part Number Definition
Military SN54ALS259 QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

  • 8-Bit Parallel-Out Storage Register Performs Serial-to-Parallel Conversion With Storage
  • Asynchronous Parallel Clear
  • Active-High Decoder
  • Enable/Disable Input Simplifies Expansion
  • Expandable for n-Bit Applications
  • Four Distinct Functional Modes
  • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Description

These 8-bit addressable latches are designed for general-purpose storage applications in digital systems. Specific uses include working registers, serial-holding registers, and active-high decoders or demultiplexers. They are multifunctional devices capable of storing single-line data in eight addressable latches and being a 1-of-8 decoder or demultiplexer with active-high outputs.

Four distinct modes of operation are selectable by controlling the clear () and enable (G\) inputs as shown in the function table. In the addressable-latch mode, data at the data-in terminal is written into the addressed latch. The

addressed latch follows the data input with all unaddressed latches remaining in their previous states. In the memory mode, all latches remain in their previous states and are unaffected by the data or address inputs. To eliminate the possibility of entering erroneous data in the latches, G\ should be held high (inactive) while the address lines are changing. In the 1-of-8 decoding or demultiplexing mode, the addressed output follows the level of the D input with all other outputs low. In the clear mode, all outputs are low and unaffected by the address and data inputs.

The SN54ALS259 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS259 is characterized for operation from 0°C to 70°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierFootprintsSamples
SN74ALS259DACTIVE0 to 702.44 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintPurchase Samples
SN74ALS259DE4ACTIVE0 to 702.44 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintPurchase Samples
SN74ALS259DG4ACTIVE0 to 702.44 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintPurchase Samples
SN74ALS259DRACTIVE0 to 702.22 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
SN74ALS259DRE4ACTIVE0 to 702.22 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
SN74ALS259DRG4ACTIVE0 to 702.22 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
SN74ALS259NACTIVE0 to 702.22 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this FootprintPurchase Samples
SN74ALS259NE4ACTIVE0 to 702.22 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this FootprintPurchase 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 11:05 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 15 WeeksSN74ALS259D
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
Mouser Electronics 4
TI Lead Time*: 15 WeeksSN74ALS259DE4
WorldwideDigiKey  Available
TI Lead Time*: 15 WeeksSN74ALS259DG4
WorldwideDigiKey  Available
TI Lead Time*: 11 WeeksSN74ALS259DR
AmericasRochester Electronics >1k
WorldwideDigiKey >1k
TI Lead Time*: 11 WeeksSN74ALS259DRE4
WorldwideDigiKey  Available
TI Lead Time*: 11 WeeksSN74ALS259DRG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksSN74ALS259N
AmericasArrow 130
Rochester Electronics >1k
AsiaFarnell Asia 200
EuropeAvnet-SILICA 50
Farnell 200
WorldwideMouser Electronics 215
TI Lead Time*: 14 WeeksSN74ALS259NE4
None Reported
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** 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
SN74ALS259D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259DE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259DR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259DRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259DRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SN74ALS259N RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
SN74ALS259NE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU 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.

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