| Part Number | EFM32GG11B820F2048IM64-B | EFM32GG11B820F2048IM64-A | 
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Active | Obsolete | 
| Core Processor | ARM® Cortex®-M4 | ARM® Cortex®-M4 | 
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 
| Speed | 72MHz | 72MHz | 
| Connectivity | CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, MMC/SD/SDIO, QSPI, SmartCard, SPI, UART/USART, USB | CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, MMC/SD/SDIO, QSPI, SmartCard, SPI, UART/USART, USB | 
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT | 
| Number of I/O | 50 | 50 | 
| Program Memory Size | 2MB (2M x 8) | 2MB (2M x 8) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | - | - | 
| RAM Size | 512K x 8 | 512K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.8V | 1.8V ~ 3.8V | 
| Data Converters | A/D 16x12b SAR; D/A 2x12b | A/D 16x12b SAR; D/A 2x12b | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 64-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 
| Supplier Device Package | 64-QFN (9x9) | 64-QFN (9x9) |