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Customers Who Evaluated This Product Also EvaluatedProduct InformationFeatures
Description
The CMOS bq2201 SRAM Nonvolatile Controller Unit provides all necessary functions for converting a standard CMOS SRAM into nonvolatile read/write memory. A precision comparator monitors the 5V VCC input for an out-of-tolerance condition. When out of tolerance is detected, a conditioned chip-enable output is forced inactive to write-protect any standard CMOS SRAM. During a power failure, the external SRAM is switched from the VCC supply to one of two 3V backup supplies. On a subsequent power-up, the SRAM is write-protected until a power-valid condition exists. The bq2201 is footprint- and timing-compatible with industry standards with the added benefit of a chip-enable propagation delay of less than 10ns. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| BQ2201PN | ACTIVE | 0 to 70 | 1.85 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
| BQ2201PNE4 | ACTIVE | 0 to 70 | 1.85 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
| BQ2201SN | ACTIVE | 0 to 70 | 2.05 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| BQ2201SN-N | ACTIVE | -40 to 85 | 2.05 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Purchase Samples | ||
| BQ2201SN-NG4 | ACTIVE | -40 to 85 | 2.05 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Purchase Samples | ||
| BQ2201SN-NTR | ACTIVE | -40 to 85 | 1.85 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| BQ2201SN-NTRG4 | ACTIVE | -40 to 85 | 1.85 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| BQ2201SNG4 | ACTIVE | 0 to 70 | 2.05 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| BQ2201SNTR | ACTIVE | 0 to 70 | 1.85 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| BQ2201SNTRG4 | ACTIVE | 0 to 70 | 1.85 | 1ku | SOIC (D) | 8 | 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 12:17 PM GMT, 25 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksBQ2201PN | |||
| Americas | Arrow | 184 | |
| Avnet | >1k | ||
| Newark | 41 | ||
| Rochester Electronics | >1k | ||
| Asia | Farnell Asia | 41 | |
| Worldwide | DigiKey | 358 | |
| Mouser Electronics | 180 | ||
| TI Lead Time*: 20 WeeksBQ2201PNE4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksBQ2201SN | |||
| Americas | Avnet | 40 | |
| Rochester Electronics | >1k | ||
| Asia | WPI | 150 | |
| Europe | Avnet-SILICA | 50 | |
| Worldwide | Mouser Electronics | 132 | |
| TI Lead Time*: 20 WeeksBQ2201SN-N | |||
| Americas | Arrow | 40 | |
| Avnet | 75 | ||
| Rochester Electronics | >1k | ||
| Europe | Spoerle | 75 | |
| TI Lead Time*: 20 WeeksBQ2201SN-NG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ2201SN-NTR | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ2201SN-NTRG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ2201SNG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ2201SNTR | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksBQ2201SNTRG4 | |||
| 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 |
BQ2201PN  | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
| BQ2201PNE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
| BQ2201SN | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SN-N | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SN-NG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SN-NTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SN-NTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SNG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SNTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ2201SNTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | 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 BQ2201 
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