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Silicon Labs Introduces Temperature Sensing Microcontrollers

Silicon Laboratories has unveiled a series of high-performance 8-bit microcontrollers (MCUs) that include a high-precision integrated temperature sensor.

The new C8051F39x/7x MCU is a unique combination of rapid 8051 CPU in a compact package integrated high-performance analog peripherals, and ideal for sensor interfaces, optical transceiver modules, and brushless dc motor applications for vacuum cleaners, fans, remote control toy vehicles, and dryers.

The on-chip temperature sensor of C8051F39x/7x MCUs ensures ±2°C precision through temperature ranges up to 105°C, eliminating the need for calibration. The C8051F39x/7x family enhances temperature compensation routines giving rise to excellent end-product reliability and 5x increase in accuracy than in-class MCUs.

The compact design of C8051F39x/7x MCUs makes it ideal for space-constrained applications like optical transceiver modules. In addition to minimizing the bill-of-materials (BOM) cost and PCB footprint, the unique integration of MCU family replaces the requirement for external components. The MCU family’s crossbar technology provides versatility to include peripherals within specific pin locations.

The C8051F39x/7x MCUs have been built on a patented, pipeline 8051 core that extends 2.5x more CPU efficiency up to 50 MIPS when compared to competing devices. Better resolution pulse-width modulation (PWM) enables performing more complex algorithms, ensuring extensive motor control applications. Rapid interrupt handling for real-time applications can be achieved through support for four interrupt priorities.

The C8051F39x/7x MCUs utilizes ultra-low 160 µA/MHz in active mode, allowing 80% more power conservation, thereby catering to the industrial requirement for green energy compliance and low-power operation.

The C8051F37x devices are the first-ever Silicon Labs MCUs having 512B of EEPROM that ensures 10x more write/erase cycles (1M vs. 100k typical) and rapid programming times (3.5 ms vs. 112 ms) than standard flash implementations, contributing to more applications.

Development kits for the C8051F39x/7x MCU family from Silicon Labs encompass complimentary downloadable software tools, C8051F390 or C8051F370 target boards, power supply, USB debug adaptor/programmer, cables, and quick-start guide. Silicon Labs’ TOOLSTICK370-A-DC daughter card features a user-friendly development system that supports designing and debugging of application firmware on the target C8051F39x/7x MCU based on Silicon Labs Integrated Development Environment (IDE).

Silicon Labs’ C8051F39x/7x MCUs are now being offered as production quantities in 4x4 mm 20-pin and 24-pin QFN packages with 1 kB RAM, 4 to 16 kB flash sizes. The F39x/7x devices can be used with C8051F33x MCUs.

Source: http://www.silabs.com/

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