illustrate

The bq32000 device is an industry-standard real-time clock-compatible alternative.

The BQ32000 integrates a built-in automatic trickle charger backup power. Backup power can be used with either a capacitive or non-rechargeable battery. The bq32000 has programmable calibration adjustments from -63 ppm to 126 ppm. The bq32000 register includes an (oscillator fault) flag indicating the status of the RTC oscillator, as well as a stop bit that causes the host processor to disable the oscillator. The time registers are usually updated every second, and all registers are clocked at the same time to prevent glitch updates. The BQ32000 also features automatic leap year compensation.

characteristic

• Automatic switching to standby power
• I^{2 C}interface
  Supports serial clocks up to 400 kHz
• Use 32.768 - kHz crystals
  With an adjustment of -63-ppm to +126-ppm
• Integrated oscillator failure detection
• 8-pin SOIC package
• -40°C to 85°C ambient operating temperature
• apply
  • General consumer electronics