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| TYPE | DESCRIPTION |
| Mfr | Silicon Labs |
| Series | SiM3U1xx |
| Package | Tray |
| Product Status | Not For New Designs |
| DigiKey Programmable | Not Verified |
| Core Processor | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core |
| Speed | 80MHz |
| Connectivity | I²C, IrDA, SmartCard, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 28 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V |
| Data Converters | A/D 18x12b; D/A 2x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 40-VFQFN Exposed Pad |
| Supplier Device Package | 40-QFN (6x6) |
| Base Product Number | SIM3U154 |
