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| PartNumber | EFM32G842F128-QFP64 | EFM32G842F128-QFP64T | EFM32G842F128 |
| Description | ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES | ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES | |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-64 | TQFP-64 | - |
| Series | EFM32G | EFM32G | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 32 MHz | 32 MHz | - |
| Program Memory Size | 128 kB | 128 kB | - |
| Data RAM Size | 16 kB | 16 kB | - |
| Number of I/Os | 53 I/O | 53 I/O | - |
| Operating Supply Voltage | 3 V | 1.98 V to 3.8 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tray | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Data RAM Type | RAM | SRAM | - |
| Interface Type | I2C, SPI, UART | I2C, SPI, UART | - |
| I/O Voltage | 3 V | 3.3 V | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 3 Timer | 3 x 16 bit | - |
| Processor Series | EFM32G842 | EFM32G842 | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 1000 | 160 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 3.8 V | 3.8 V | - |
| Supply Voltage Min | 1.98 V | 1.98 V | - |
| Tradename | EFM32 | EFM32 | - |
| Part # Aliases | EFM32G842F128 | - | - |
| Unit Weight | 0.012088 oz | - | - |
| ADC Resolution | - | 12 bit | - |
| Product | - | MCU | - |
| Analog Supply Voltage | - | 1.98 V to 3.8 V | - |
| DAC Resolution | - | 12 bit | - |
| Watchdog Timers | - | Watchdog Timer | - |