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BQ3285LD Status: ACTIVE

ACPI Compliant RTC IC W 242x8 NVSRAM Alarm Wake-up Dedicated 32kHz Output 3V Op on L Version


      
         
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Datasheet

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 BQ3285 BQ3285E BQ3285LDBQ3285LF 
Supply Voltage(V)5  5  3  3  
Bus InterfaceMultiplexed  Multiplexed  Multiplexed  Multiplexed  
Memory Density(Kb)0.114  0.242  0.242  0.242  
Operating Temp Range(Celsius)0 to 70  0 to 70  0 to 70   
Pin/Package24PDIP, 24SOIC  24PDIP, 24SOIC, 24SSOP/QSOP  24SSOP/QSOP  24SSOP/QSOP  
Approx. Price (US$) 2.10 | 1ku   2.10 | 1ku   2.10 | 1ku   2.10 | 1ku  
RTC Bytes 14  14  14  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ32000: Serial RTC
  • BQ3285: RTC IC with 114x8 NVSRAM
  • BQ3285LF: Y2K Enhanced ACPI Compliant RTC IC w 240x8 NVSRAM, Alarm Wake-up 3.3V op 32kHz Dedicated Output

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Product Information

Features

  • ACPI-compliant day-of-month alarm
  • Direct clock/calendar replacement for IBM\xAE AT-compatible computers and other applications
  • 2.7\x965.5V operation (bq3285LD); 4.5\x965.5V operation (bq3285ED)
  • 242 bytes of general nonvolatile storage
  • Dedicated 32.768kHz output pin
  • System wake-up capability\x97alarm interrupt output active in battery-backup mode
  • Less than 0.55uA load under battery operation
  • Selectable Intel or Motorola bus timing
  • 24-pin plastic SSOP

Description

The CMOS bq3285ED/LD is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. The architecture is based on the bq3285/7 RTC with added features: low-voltage operation, 32.768kHz output, 128 additional bytes of CMOS, and a day-of-month alarm to be compliant with the ACPI RTC specification.

A 32.768kHz output is available for sustaining power-management activities. The bq3285ED/LD 32kHz output is always on whenever VCC is valid. In VCC standby mode, the 32kHz is active, and the bq3285LD typically draws 100uA while the bq3285ED typically draws 300uA. Wake-up capability is provided by an alarm interrupt, which is active in battery-backup mode.

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Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ3285LDSSACTIVE0 to 702.35 | 1kuSSOP/QSOP (DBQ) | 24 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ3285LDSSG4ACTIVE0 to 702.35 | 1kuSSOP/QSOP (DBQ) | 24 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ3285LDSSTRACTIVE0 to 702.10 | 1kuSSOP/QSOP (DBQ) | 24 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ3285LDSSTRG4ACTIVE0 to 702.10 | 1kuSSOP/QSOP (DBQ) | 24 View 2500 | LARGE T&R Download CAD Format for this Symbol 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 12:15 PM GMT, 24 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ3285LDSS
AmericasArrow 115
Newark 150
Rochester Electronics >1k
AsiaFarnell Asia 150
WorldwideDigiKey 180
Mouser Electronics 150
TI Lead Time*: 20 WeeksBQ3285LDSSG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ3285LDSSTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ3285LDSSTRG4
WorldwideDigiKey  Available
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
BQ3285LDSS RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ3285LDSSG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ3285LDSSTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ3285LDSSTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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

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Datasheet

Application Notes

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ32000 Serial RTC CLOCKS AND TIMERS-REAL-TIME CLOCKS TI customers also evaluated this product.
BQ3285 RTC IC with 114x8 NVSRAM CLOCKS AND TIMERS-REAL-TIME CLOCKS TI customers also evaluated this product.
BQ3285LF Y2K Enhanced ACPI Compliant RTC IC w 240x8 NVSRAM, Alarm Wake-up 3.3V op 32kHz Dedicated Output CLOCKS AND TIMERS-REAL-TIME CLOCKS TI customers also evaluated this product.
BQ3285E RTC IC with 242x8 NVSRAM Alarm Wake-up CLOCKS AND TIMERS-REAL-TIME CLOCKS TI customers also evaluated this product.
BQ3287 RTC Module with 114x8 NVSRAM, RAM Clear Input on A Version CLOCKS AND TIMERS-REAL-TIME CLOCKS TI customers also evaluated this product.

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