The SI1031-B-GM3R is an RF Transceiver IC that operates on a frequency range from 240MHz to 960MHz. It is designed with EZRadioPro protocol and FSK, GFSK, and OOK modulation. The device has a memory size of 64kB Flash and 8.5kB RAM, and a power output of 20dBm (Max). It has a sensitivity of -121dBm and a maximum data rate of 256kbps. The SI1031-B-GM3R has 53 GPIO and operates with a voltage supply of 1.8V to 3.8V. The device comes in an 85-VFLGA Exposed Pad package that is mounted using SMD (SMT) technology. It is ideal for use in General ISM < 1GHz RF family/standard. The SI1031-B-GM3R is a high-performance device that is suitable for use in various applications.