The SI1021-A-GM is an RF transceiver IC manufactured by Silicon Labs. It is categorized under RF/IF and RFID>RF Transceiver ICs and is an obsolete product. The SI1021-A-GM is a TxRx+MCU type IC that operates at a frequency range of 240MHz to 960MHz. It has a data rate of up to 256kbps and a sensitivity of -121dBm. The IC has a current consumption of 18.5mA during receiving and 85mA during transmitting. It has a voltage supply range of 1.8V to 3.8V and can operate at an ambient temperature range of -40°C to +85°C. The SI1021-A-GM is a reliable and durable component that can be used in a wide range of applications.