资 源 简 介
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 beimplemented using a capacitor or non-rechargeable battery. The bq32000 has a programmable calibraTIonadjustment from –63 ppm to +126 ppm. The bq32000 registers include an OF (oscillator fail) flag indicating thestatus of the RTC oscillator, as well as a STOP bit that allows the host processor to disable the oscillator. Thetime registers are normally updated once per second, and all the registers are updated at the same time toprevent a timekeeping glitch. The bq32000 includes automatic leap-year compensation.
