User ManualTable of Contents1. General Description42. Applications43. Features44. Application Block Diagram55. Interfaces65.1 Power Supply65.2 System Function Interfaces65.2.1 GPIOs65.2.2 Two-wire Interface (I2C Compatible)65.2.3 Flash Program I/Os75.2.4 Serial Peripheral Interface75.2.5 UARTs85.2.6 Analog to Digital Converter (ADC)85.2.7 Low Power Comparator (LPCOMP)85.2.8 Reset95.2.9 NFC96. Module Specifications107. Module Pinout and Pin Description117.1 Module Pinout117.2 Pin Description128. PCB Design Guide139. PCB Footprint and Dimensions1310. Electrical Characteristics1410.1 Absolute Maximum Ratings1410.2 Recommended Operation Ratings1410.3 Current1411. Manufacturing Process Recommendations1512. Packaging Specification1613. Ordering Information1614. Contact Information17Size: 1.26 MBPages: 18Language: EnglishOpen manual