32-bit ARM microprocessor featuring 128KB FLASH memory and 32KB RAM. Operates at up to 80MHz with an internal oscillator. Offers 65 programmable I/O pins, including 2x I2C, 3x SPI, 2x UART, 2x PWM, and 1x USB interface. Includes 2 ADC channels and 2 timers/counters. Packaged in a 92-pin LGA with a temperature range of -40°C to 85°C.
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| Package/Case | LGA |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 80MHz |
| Height | 0.94mm |
| Length | 7mm |
| Max Frequency | 80MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 570mW |
| Max Supply Voltage | 3.6V |
| Memory Size | 128KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.8V |
| Number of ADC Channels | 2 |
| Number of Channels | 10 |
| Number of I/Os | 65 |
| Number of I2C Channels | 2 |
| Number of Programmable I/O | 65 |
| Number of PWM Channels | 2 |
| Number of SPI Channels | 3 |
| Number of Timers/Counters | 2 |
| Number of UART Channels | 2 |
| Number of USB Channels | 1 |
| Oscillator Type | Internal |
| Package Quantity | 297 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 32KB |
| RoHS Compliant | Yes |
| Series | SiM3U1xx |
| Watchdog Timer | Yes |
| Width | 7mm |
| RoHS | Compliant |
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