Real Time Clock RTC Module I2C PCF8563 PCF8563t + แบตเตอรี่

Feature: 1. Standby batteries can be used for power supply 2. Serial Input/Output Through I2C Bus. 3. The output frequency of programmable clock is 32.768 KHz, 1024 Hz, 32 Hz and 1 Hz. 4. Four kinds of alarm function and timer function. 5. Included reset circuit, oscillator capacitor and power-off detection circuit. 6. Leakage interruption output. 7. 400KHZ High Speed Reading and Writing. Specification: Wide Voltage Range 1.0-5.5V Ultra-low power consumption: typical value is 0.25uA Size: 42x17x5mm Module Interface Description: 1. Left Battery Installation Interface. 2. When installing, pay attention to the direction and install according to the direction on the picture. 3. Right INT interrupts output (generally not needed). 4. SCL IIC Clock Interface Connecting with Single Chip Microcomputer IO Interface. 5. SDA IIC Digital Interface Connected with IO Port of Single Chip Microcomputer. 6. Out-of-Ground Grounding of GND Module. 7. VCC power interface external 3.3v-5v.