1-10 Uds PCF8563 PCF8563T 8563 IIC reloj en tiempo Real Placa de módulo RTC buena que DS3231 AT24C32 interfaz I2C módulo de sincronización del calendario

PCF8563 Key Performance Indicators:

★ Battery powered (optional)

★ Wide voltage range: 1.0~5.5V

★ Ultra-low power consumption: 0.25uA (typical)

★ Serial input/output via I2C bus

★ Programmable clock output frequencies: 32.768kHz, 1024Hz, 32Hz, 1Hz

★ Four alarm functions and timer function

★ Built-in reset circuit, oscillator capacitor, and power-down detection circuit

★ Open-drain interrupt output

★ 400kHz high-speed read/write