| Category | Integrated Circuits (ICs) |
| Connectivity | I?C, IrDA, SmartCard, SPI, UART/USART, USB |
| Core Processor | ARM? Cortex?-M0+ |
| Core Size | 32-Bit Single-Core |
| Data Converters | A/D 4x12b |
| EEPROM Size | - |
| Mfr | Silicon Labs |
| Mounting Type | Surface Mount |
| Number of I/O | 35 |
| Operating Temperature | -40?C ~ 85?C (TA) |
| Oscillator Type | Internal |
| Package | Tape & Reel (TR) |
| Package / Case | 48-TQFP |
| Part Status | Discontinued at Digi-Key |
| Peripherals | Brown-out Detect/Reset, DMA, I?S, POR, PWM, WDT |
| Program Memory Size | 32KB (32K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 8K x 8 |
| Series | Happy Gecko |
| Speed | 25MHz |
| Supplier Device Package | 48-TQFP (7x7) |
| Voltage - Supply (Vcc/Vdd) | 1.98V ~ 3.8V |