TPS653860-Q1: RTC function

Mingkang Song

Expert 3310 points

Part Number: TPS653860-Q1

Tool/software:

Dear team,

Could you pls tell me if black birds have RTC inside?

If not, does our PMIC support external RTC to realize perpetual calendar function?

Thanks!

over 1 year ago

0 Jari Niemela13 over 1 year ago

TI__Genius 13850 points

Hi Mingkang,

No, there is not RTC or calendar in the device. There is integrated timer function but not for any calendar function.

0 Mingkang Song over 1 year ago in reply to Jari Niemela13

TI__Expert 3310 points

Thanks Jari!

Does this device support external RTC to realize perpetual calendar function?

0 Florian Gabelle over 1 year ago in reply to Mingkang Song

TI__Expert 5111 points

Hello Mingkang,

This device is under NDA restrictions and further information should be requested through your TI field engineering team.

There is no mention of external RTC support in the data sheet.

Best regards,

Florian

0 Mingkang Song over 1 year ago in reply to Florian Gabelle

TI__Expert 3310 points

Thanks Florian,

I'm part of the TI China Auto field team. Yes, there is no mention of external RTC in the datasheet.

So you mean tps653860-Q1 won't support external RTC?

0 Florian Gabelle over 1 year ago in reply to Mingkang Song

TI__Expert 5111 points

Mingkang,

Can you then please move this thread to internal forums ?

I do not know what external RTC support involves, but there is no mention it is supported. The SPI bus is only for configuration, status and error reporting, and there is no I2C. The device wakes using WAKE pins and internal low IQ wake-up timer.

Best,

Florian

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TPS653860-Q1: RTC function