Silicon Labs Launches Industry’s Most Flexible and Developer-Friendly 32-Bit Mixed-Signal MCUs

Bringing unprecedented design flexibility to the 32-bit market, Silicon Laboratories Inc. (NASDAQ: SLAB), a leader in high-performance, analog-intensive, mixed-signal ICs, today introduced the Precision32™ microcontroller (MCU) family. Based on the ARM® Cortex™-M3 processor, the new Precision32 family includes 32 SiM3U1xx and SiM3C1xx MCU products with footprint-compatible USB and non-USB options. Offering a highly integrated, flexible architecture, a rich peripheral set, ultra-low power and Eclipse-based development tools that are downloadable at no charge, the Precision32 family is suitable for a wide range of applications including portable medical devices, point-of-sale peripherals, motor control, industrial monitoring, barcode scanners, optical touchscreen interfaces, sensor controllers and home automation systems.

To help developers reduce system cost, design complexity and component count, the Precision32 family offers an exceptionally high level of peripheral integration that can enable a bill of materials (BOM) savings of up to $1.34 (USD). The following on-chip peripherals greatly reduce component count and system cost:

  •     Integrated precision oscillators with an advanced phase-locked loop (PLL) eliminate the need for a costly 8 MHz crystal by providing the clocking accuracy necessary for crystal-less USB operation while running the core independently at any frequency from 1 to 80 MHz.
  •     An internal 5 V voltage regulator enables the MCU to be powered directly from USB or a 5 V source without the need for an external regulator.
  •     Six high-drive I/Os (up to 300 mA each) can directly drive high-power LEDs, small motors, buzzers and power MOSFETs, as well as serve as a boost converter controller.
  •     Up to 16 capacitive touch channels eliminate the need for separate touch sensor ICs in applications requiring buttons, sliders or wheels.
  •     The Precision32 family offers a complete USB 2.0 PHY and analog front-end interfacing directly to the USB connector, while most other MCUs require an external USB pull-up resistor and termination circuit.

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