RX8130CE: Real time clock module (I2C Bus) with built-in backup charging function

overview

·I2C Bus interface

·Power switching function

Detect VDD voltage and automatically switch to backup power supply of 1.25V (Min) for power supply

Even if the main power supply voltage decreases, the backup power supply will still be affected

·Rechargeable lithium battery charging control function

When fully charged is detected, it will automatically stop charging

The decrease in the detected backup power supply voltage is recorded in the register

·Delayed reset function

When the main power supply is powered on, the reset output is released, and the release voltage is selected by the register (2.80V/2.75V)

The delay time is 60ms (Typ), starting from the detection of voltage rise

·Frequency output function

The output function can be selected from 32.768KHz, 1024Hz, 1Hz

·Alarm function and timer function

Optional from 1/4096 seconds to 65535 hours

The original clock of the timer is 1 hour, 1 minute, 64Hz, 4096Hz

This function is automatically recorded to TF bit and can also be output through/IRQ pin when an event occurs

Specification (Features)