產品詳情

Function Real-time clock Iq (typ) (mA) 0.065 Features 63-ppm to ppm adjustment, I2C bus interface, Oscillator fail detection Rating Catalog Operating temperature range (°C) -40 to 85 Supply voltage (max) (V) 3.6 Supply voltage (min) (V) 3
Function Real-time clock Iq (typ) (mA) 0.065 Features 63-ppm to ppm adjustment, I2C bus interface, Oscillator fail detection Rating Catalog Operating temperature range (°C) -40 to 85 Supply voltage (max) (V) 3.6 Supply voltage (min) (V) 3
SOIC (D) 8 29.4 mm2 4.9 x 6
  • Automatic Switchover to Backup Supply
  • I2C Interface Supports Serial Clock
    up to 400 kHz
  • Uses 32.768-kHz Crystal With
    –63-ppm to +126-ppm Adjustment
  • Integrated Oscillator-Fail Detection
  • 8-Pin SOIC Package
  • –40°C to +85°C Ambient Operating
    Temperature
  • Automatic Switchover to Backup Supply
  • I2C Interface Supports Serial Clock
    up to 400 kHz
  • Uses 32.768-kHz Crystal With
    –63-ppm to +126-ppm Adjustment
  • Integrated Oscillator-Fail Detection
  • 8-Pin SOIC Package
  • –40°C to +85°C Ambient Operating
    Temperature

The BQ32002 device is a compatible replacement for industry standard real-time clocks.

The BQ32002 features an automatic backup supply that can be implemented using a capacitor or non-rechargeable battery. The BQ32002 has a programmable calibration adjustment from –63 ppm to +126 ppm. The BQ32002 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 BQ32002 includes automatic leap-year compensation.

The BQ32002 device is a compatible replacement for industry standard real-time clocks.

The BQ32002 features an automatic backup supply that can be implemented using a capacitor or non-rechargeable battery. The BQ32002 has a programmable calibration adjustment from –63 ppm to +126 ppm. The BQ32002 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 BQ32002 includes automatic leap-year compensation.
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* 數據表 BQ32002 Real-Time Clock (RTC) 數據表 (Rev. B) PDF | HTML 2016年 4月 18日

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