Модуль PCF8563

Модуль  PCF8563 Main performance index of PCF8563: You can use the standby battery Wide voltage range of 1. 0~5. 5V. This ultra low power consumption: the typical value is 0. 25uA It through the I2C bus serial input / output This programmable clock output frequency: 32. 768KHz, 1024Hz, 32Hz, 1Hz. * four alarm and timer function It includes a reset circuit, oscillator capacitor and power failure detection circuit Open drain interrupt output. 400KHZ read and write speed Two, module interface description Left battery mounting interface Pay attention to the installation direction, according to the direction of the image installation Right INT interrupt output (generally not used) COT clock output (generally not used) SCL IIC clock interface MCU IO port SDA IIC digital interface MCU IO port The GND module of extraterrestrial grounding VCC power supply interface 3. 3v-5v   Без батарейки у комп