BQ32000DR Real Time Clock IC I2C Serial RTC 32.768kHz 8-Pin SOIC
The BQ32000DR is a precision RTC IC with automatic backup supply switchover and I2C interface up to 400 kHz. Features programmable calibration adjustment, oscillator-fail detection, and leap-year compensation. Ideal for consumer electronics. Operating temperature -40°C to 85°C.
BQ32000DR Clock Timer ICS Real Time Clock Serial RTC
1 Features
- 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
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Integrated Oscillator-Fail Detection
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8-Pin SOIC Package
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–40°C to 85°C Ambient Operating Temperature
2 Applications
• General Consumer Electronics
3 Description
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.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
bq32000 |
SOIC (8) |
4.90 mm x 3.91 mm |
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