Mixed-Signal Precision32™ 32-Bit Microcontrollers

Mixed-Signal Precision32™ 32-Bit Microcontrollers


Silicon Labs’ Precision32™ 32-bit microcontroller family is engineered to make your job easier. The Precision32 MCUs provide a highly integrated and flexible architecture, a rich peripheral set and low power consumption.

To ease development, Silicon Labs offers an Eclipse-based development suite including a full compiler, debugger and AppBuilder rapid prototyping utility at no charge.

Based on the ARM® Cortex™-M3 core, the new Precision32 SiM3U1xx and SiM3C1xx MCUs include USB and non-USB devices with 32–256 kB Flash, 8–32 kB RAM and 40–92 pin packages.

Patented Crossbar Architecture

Enables maximum system design flexibility & reduces board complexity and cost

32-bit Development Tools

Modular hardware system with everything needed to evaluate and develop code

Free Software Tools

Eclipse-based IDE with full compiler, debugger & AppBuilder rapid prototyping tool


Unified Development Platform (UDP)

Silicon Labs offers an innovative, new approach in hardware support with the Unified Development Platform (UDP), featuring a unified mother board, modular boards, integrated LCD and ample real estate for prototyping, expansion and integration.

The UDP platform supports all of the following:

  • MCU code and firmware development (IDE, Configuration Wizard, example codes etc.)
  • RF design and optimization (WDS support, automatic board detection and firmware download, sample RF code, run-time PHY interface etc.)
  • Networks and protocol stacks (such as the wireless M-Bus stack)



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