The Silicon Labs Leopard Gecko EFM32LG230F256G-E-QFN64 is an integrated circuit with an ARM Cortex-M3 core processor.

• Speed: 48MHz
• Package: 64-VFQFN exposed pad
• Connectivity: I2C, IrDA, SmartCard, SPI, and UART/USART
• Peripherals: brown-out detect/reset, DMA, POR, PWM, and WDT
• Number of I/O: 56
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• RAM Size: 32K x 8
• Data Converters: A/D 8x12b and D/A 2x12b
• Oscillator Type: Internal
• Supply Voltage: 1.85 V to 3.8 V
• Manufacturer Package: 64-QFN (9x9)
• Alternative Parts (cross-reference): AT32UC3B0256-Z2UR, ATSAMD21J16B-MF, and ATUC256L3U-Z3UTES
• ECCN: 5A992.c
• Country of Origin: Republic of Korea
• Estimated EOL Date: 2025
• Quantity per Package: 260