PCF85053A rtc equivalent, bootable cpu rtc.
* Voltage range addresses common supply rails
– VDD supply voltage from 1.7 V to 3.6 V
– VBAT battery supply voltage from 1.55 V to 3..
– Active low ALRT (interrupt) output
– Automatic timestamp and random code generation
The PCF85053A is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption and automatic switching to battery on primary power loss. Featuring clock output, ALRT (interrupt) output and 128 bytes of battery backup SRAM. The PCF8505.
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