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STM660x Smart On-Off Controller Slide 20

There are also three additional functions provided by the STM660x: A Vref pin that provides a 1.5V reference voltage that is 1% accurate, a PB out pin that allows for the monitoring of the state of the pushbuttons, and a VCClo pin to monitor the Vcc voltage, preventing the battery from over-discharging.

PTM Published on: 2012-01-23