The SI1021-A-GMR is an electronic component manufactured by Silicon Labs. It is used in a wide range of electronic devices and is part of the RF/IF and RFID - RF transceiver ICs category. This product is a TxRx + MCU type, and the package is tape & reel (TR). The standard package of this product is 2,500, and the mounting is SMD (SMT). The frequency of this product is 240MHz ~ 960MHz, and the protocol is EZRadioPro. The memory size of this product is 64kB flash, 8.5kB RAM, and the power output is 20dBm (Max). The sensitivity of this product is -121dBm, and the data rate (Max) is 256kbps. The current receiving of this product is 18.5mA, and the RF family/standard is general ISM < 1GHz. The modulation of this product is FSK, GFSK, OOK, and the serial interfaces are I2C, SPI, UART. The GPIO of this product is 53, and the current transmitting is 85mA. The voltage supply of this product is 1.8V ~ 3.8V, and the package/case is 85-VFLGA exposed pad. The supplier device package is 85-LGA (6x8), and the temperature range - operating is -40°C ~ 85°C. The MSL level of this product is 4 (72 hours), and the HTSUS is 8542.31.0001. This product is obsolete.