PCF8563 PCF8563T 8563 I2C RTC Real Time Clock Module Board, I2C Real Time Clock Module Fit for Arduino

Specification: Condition: 100% Brand New Item Type: Real Time Clock Module Wide Voltage Range: 1.0-5.5V Typical Value: 0.25uA Output Frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz Battery: CR1220 3V Button Battery Board Size: Approx. 4.2 * 1.7cm / 1.7 * 0.7in Package List: 1 * Real Time Clock Module 1 * Pin Header 1 * Button Battery Notes: 1. The yellow pin shall be attached to the customer during delivery, but not welded to the board; The customer can weld pin or not weld or weld other connectors according to his own needs. 2. The attached program is tested and passed on STC89C52. KEIL compilation environment only provides reference and theoretical technical support, but does not provide debugging and reading service.