The BQ2022A is a 1-Kbit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit CRC generation, and the 8-bit family code (09h). A 64-bit status register controls write protection and page redirection.
The BQ2022A SDQ™ interface requires only a single connection and a ground return. The DATA pin is also the sole power source for the BQ2022A.
The small surface-mount package options saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status, and access-code security.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ2022A 1-Kbit Serial EPROM with SDQ Interface datasheet (Rev. F) | PDF | HTML | Jan 31, 2022 |
| Application note | Battery Authentication and Security Schemes (Rev. A) | Jul 17, 2014 | ||
| Analog design Journal | Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps | Mar 11, 2009 |
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The bq2022A is a 1 K-bit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit CRC generation, and an 8-bit family code. A 64-bit status register controls write protection and page redirection. The purpose of the evaluation software is to demonstrate the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TO-92 (LP) | 3 | Ultra Librarian |
| SOT-23 (DBZ) | 3 | Ultra Librarian |
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