BQ4285 series datasheets. Manufacturer: Unitrode Semiconductor Products.

BQ4285P Real-time clock (RTC) with NVRAM control in 24-pin DIP package. Operational temperature range from 0°C to 70°C. Datasheet*) BQ4285Q Real-time clock (RTC) with NVRAM control in 28-pin PLCC package. Operational temperature range from 0°C to 70°C. Datasheet*) BQ4285S Real-time clock (RTC) with NVRAM control in 24-pin SOIC package. Operational temperature range from 0°C to 70°C. Datasheet*) There are other manufacturers for this components. For more information please check BQ4285 (Texas Instruments)

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