PartNumber | EFM32WG940F256-QFN64 | EFM32WG940F128-QFN64T | EFM32WG940F128-QFN64 |
Description | ARM Microcontrollers - MCU ARM Cortex-M4 48 MHz 256 kB USB LCD MCU | ARM Microcontrollers - MCU 128k Flash, 32k RAM, USB, 8x18 LCD, AES | ARM Microcontrollers - MCU ARM Cortex-M4 48 MHz 128 kB USB LCD MCU |
Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
RoHS | Y | Y | Y |
Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
Package / Case | QFN-64 | QFN-64 | QFN-64 |
Series | EFM32WG | EFM32WG | EFM32WG |
Core | ARM Cortex M4F | ARM Cortex M4 | ARM Cortex M4F |
Data Bus Width | 32 bit | 32 bit | 32 bit |
Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz |
Program Memory Size | 256 kB | 128 kB | 128 kB |
Data RAM Size | 32 kB | 32 kB | 32 kB |
ADC Resolution | 12 bit | 12 bit | 12 bit |
Number of I/Os | 52 I/O | 52 I/O | 52 I/O |
Operating Supply Voltage | 3 V | 1.98 V to 3.8 V | 3 V |
Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
Packaging | Reel | Tray | Reel |
Program Memory Type | Flash | Flash | Flash |
Brand | Silicon Labs | Silicon Labs | Silicon Labs |
Data RAM Type | RAM | RAM | RAM |
Interface Type | I2C, SPI, UART, USART, USB | I2C, SPI, UART, USART, USB | I2C, SPI, UART, USART, USB |
I/O Voltage | 3 V | - | 3 V |
Moisture Sensitive | Yes | Yes | Yes |
Number of ADC Channels | 6 | 8 Channel | 6 |
Number of Timers/Counters | 4 x 16 bit | 4 x 16 bit | 4 x 16 bit |
Processor Series | EFM32WG940 | EFM32WG | EFM32WG940 |
Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
Factory Pack Quantity | 1000 | 260 | 1000 |
Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
Supply Voltage Max | 3.8 V | 3.8 V | 3.8 V |
Supply Voltage Min | 1.98 V | 1.98 V | 1.98 V |
Tradename | EFM32 | EFM32 | EFM32 |
Part # Aliases | EFM32WG940F256 | - | EFM32WG940F128 |
Unit Weight | 0.007277 oz | 0.007277 oz | 0.007277 oz |
Product | - | MCU+DSP+FPU | - |
Analog Supply Voltage | - | 3.8 V | - |
DAC Resolution | - | 12 bit | - |
Watchdog Timers | - | Watchdog Timer | - |