The BQ32000 device is a compatible replacement for industry standard real-time clocks.
The BQ32000 features an automatic backup supply with integrated trickle charger. The backup supply can be implemented using a capacitor or non-rechargeable battery. The BQ32000 has a programmable calibration adjustment from –63 ppm to +126 ppm. The BQ32000 registers include an OF (oscillator fail) flag indicating the status of the RTC oscillator, as well as a STOP bit that allows the host processor to disable the oscillator. The time registers are normally updated once per second, and all the registers are updated at the same time to prevent a timekeeping glitch. The BQ32000 includes automatic leap-year compensation.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ32000 Real-Time Clock (RTC) datasheet (Rev. F) | PDF | HTML | Aug 6, 2026 |
| Application note | BQ32002 APIs for Tiva | Jan 28, 2014 |
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The Linux driver supports the BQ32000 Serial RTC. The Linux driver supports communication through the I2C bus and interfaces with the RTC sub-system.
Linux Mainline StatusAvailable in Linux Main line: Yes
Available through git.ti.com: N/A
The files associated (...)
This reference design is a central controller for a high-voltage Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery rack. This design provides driving circuits for high-voltage relay, communication interfaces, (including RS-485, controller area network (CAN), daisy chain, and Ethernet), (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
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