The EFM32JG1B200F128GM48-C0 is an integrated circuit microcontroller from Silicon Labs.

• Core Processor: 32-bit single-core ARM® Cortex®-M3
• Speed: 40MHz
• Mounting: Surface Mount
• Supplier Device Package: 48-QFN (7x7)
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• I/O Ports: 32
• RAM Size: 32K x 8
• Connectivity: I2C, IrDA, LINbus, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
• Data Converter: A/D 24x12b
• Oscillator Type: Internal
• Temperature Range: -40°C to 85°C
• Voltage Supply: 1.85V to 3.8V