RX8130CE for portable wearable devices

Clock chip module for portable wearable devices: RX8130CE. The clock chip module RX8130CE is characterized by a small size of 3225 and battery control, which can be applied to wearable devices. The RX8130CE has an automatic power switching function, which can monitor the power supply voltage and switch to the backup power supply through automatic operation. The switch voltage of the backup power supply is as low as 1.25V. Equipped with a 32.768kHz crystal oscillator unit with adjustable frequency, using a 12C bus interface and built-in backup battery charging control function. RX8130CE can support frequency output, with selectable output frequencies of 32.768kHz, 1024Hz, and 1Hz. And RX8130CE also supports functions such as a complete calendar, alarm clock, timer, etc. The timing range of the timer is 1/4069 s~65535 h, and the clock source of the timer is 1 hour, 1 minute, 64Hz, 4096Hz. The timer will automatically record to the TF register bit when an event occurs and can output using the/IRQ pin. The backup power supply of RX8130CE has a very low leakage current, not exceeding 5nA, and a working temperature range of -40~85 ℃, making it suitable for industrial grade design.