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Partname: | BQ4845YS- |
Description: | Parallel RTC With CPU Supervisor |
Manufacturer: | Texas Instruments |
Datasheet: | PDF (1.08M). Click here to download *) |
The bq4845 provides direct connections for a 32.768KHz quartz crystal and a 3V backup battery. Through the use of the conditional chip enable output (CE OUT ) and battery voltage output (V OUT ) pins, the bq4845 can write-protect and make nonvolatile external SRAMs. The backup cell powers the real-time clock and maintains SRAM information in the absence of system voltage. |
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