High Accuracy Time-of-Day and Date (±5ppm) from -40°C to +85°C 32.768kHz Square-Wave Output Digital Temp Sensor with ±3°C Accuracy 6-Pin Pmod-Compatible Connector (I²C) Example Software Written in C for Portability Secondary Header Allows Daisy-Chaining of Additional Modules on the I²C Bus Proven PCB Layout Fully Assembled and Tested Applications Industrial Applications Portable Instruments Power Meters