P4, VBAT and CHIP_PU
Posted: Sun Aug 10, 2025 8:46 pm
Hello!
I'm making a portable device with P4. It should support sleep mode when only RTC is working. Question: what should I do with CHIP_PU pin? Do I need to pull it up for RTC to work?
I'm making a portable device with P4. It should support sleep mode when only RTC is working. Question: what should I do with CHIP_PU pin? Do I need to pull it up for RTC to work?