The EFM32LG280F256G-F-QFP100 is an ARM Cortex-M3 core processor with a speed of 48MHz. The integrated circuit is part of the Leopard Gecko series and has a 32-Bit Single-Core core size.

• Core Processor: ARM Cortex-M3
• Speed: 48MHz
• Series: Leopard Gecko
• Core Size: 32-Bit Single-Core
• Standard Package: 90
• Mounting: SMD (SMT)
• Connectivity: EBI/EMI, I2C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
• I/Os: 86
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• RAM Size: 32K x 8
• Data Converters: A/D 8x12b SAR; D/A 2x12b
• Oscillator Type: Internal
• Package/Case: 100-LQFP
• Operating Temperature: -40°C ~ 85°C (TA)
• Operating Supply Voltage: 1.85V ~ 3.8V
• MSL Level: 3 (168 Hours)
• HTSUS: 8542.31.0001
• Manufacturer: Silicon Labs