|
|
|
|
Customers Who Evaluated This Product Also Evaluated
Product InformationFeatures
Description
The CMOS bq3285LF 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 RTC with added features: century bit, low-voltage operation, 32.768kHz output, 126 additional bytes of CMOS, two shadow registers of last address used, 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 bq3285LF 32kHz output is always on whenever VCC is valid. In VCC standby mode, the 32kHz is active, and the bq3285LF typically draws 100uA. Wake-up capability is provided by an alarm interrupt, which is active in battery-backup mode. In battery-backup mode, current drain is less than 550nA. The bq3285LF write-protects the clock, calendar, and storage registers during power failure. A backup battery then maintains data and operates the clock and calendar. The bq3285LF is a fully compatible real-time clock for IBM AT-compatible computers and other applications. The only external components are a 32.768kHz crystal and a backup battery. The bq3285LF is intended for use in 3V systems; however, it may also operate at 5V and then go into a 3V power-down state, write-protecting as if in a 3V system. |
| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| BQ3285LFSS-A1 | ACTIVE | 2.35 | 1ku | SSOP/QSOP (DBQ) | 24 | View | 50 | TUBE | |||
| BQ3285LFSS-A1G4 | ACTIVE | 2.35 | 1ku | SSOP/QSOP (DBQ) | 24 | View | 50 | TUBE | |||
| BQ3285LFSS-A1TR | ACTIVE | 2.10 | 1ku | SSOP/QSOP (DBQ) | 24 | View | 2500 | LARGE T&R | Purchase Samples | ||
| BQ3285LFSS-A1TRG4 | ACTIVE | 2.10 | 1ku | SSOP/QSOP (DBQ) | 24 | View | 2500 | LARGE T&R | 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.
| Reported Distributor Inventory as of 12:06 PM GMT, 08 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksBQ3285LFSS-A1 | |||
| Americas | Rochester Electronics | >1k | |
| Asia | Farnell Asia | 34 | |
| Europe | Avnet-SILICA | 50 | |
| Farnell | 34 | ||
| TI Lead Time*: 20 WeeksBQ3285LFSS-A1G4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ3285LFSS-A1TR | |||
| Americas | Rochester Electronics | >1k | |
| TI Lead Time*: 20 WeeksBQ3285LFSS-A1TRG4 | |||
| None Reported View 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| BQ3285LFSS-A1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| BQ3285LFSS-A1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| BQ3285LFSS-A1TR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| BQ3285LFSS-A1TRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
* 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.
Most useful technical documents for BQ3285LF 
| 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. |
| BQ3285LD | ACPI Compliant RTC IC W 242x8 NVSRAM Alarm Wake-up Dedicated 32kHz Output 3V Op on L Version | 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. |
| BQ3285 | RTC IC with 114x8 NVSRAM | CLOCKS AND TIMERS-REAL-TIME CLOCKS | TI customers also evaluated this product. |
| BQ3287E | RTC Module With 242x8 NVSRAM, Alarm Wake-up, RAM Clear Input on EA Version | CLOCKS AND TIMERS-REAL-TIME CLOCKS | TI customers also evaluated this product. |
| BQ4285E | RTC IC With 114x8 NVSRAM and NVSRAM Control, Alarm Wake-up 3V Op on L Version | 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. |
| TMP101 | Digital Temperature Sensor with I2C Serial Interface, Prog. Thermostat/Alarm Function | TEMPERATURE SENSORS AND CONTROL ICs-TEMPERATURE SENSOR | TI customers also evaluated this product. |

No Tags are Available for this Part Number