The EFM32LG232F256G-E-QFP64 is a microcontroller from Silicon Labs with an ARM Cortex-M3 core processor.

• Core Processor: ARM Cortex-M3
• Speed: 48MHz
• Core Size: 32-bit
• Program Memory Size: 256KB (Flash)
• RAM Size: 32K x 8
• Internal Oscillator: Yes
• I/O Pins: 53
• Connectivity: I2C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Package: 64-TQFP (10x10)
• Operating Temperature Range: -40°C to 85°C
• Supply Status: Limited
• Manufacturer Pack Quantity: 160
• MSL Level: 3 (168 Hours)
• Voltage Supply Range: 1.98V to 3.8V