Embedded Systems Freescale aims rugged Cortex-M0+ home appliances

Embedded Systems Freescale aims rugged Cortex-M0+ home appliances

2013/08/02

Freescale is offering 5V ARM Cortex-M0+ microprocessors for higher electromagnetic noise immunity.

Called the Kinetis E series, they are inteded to displace 8 and 16-bit processors from dishwashers, refrigerators, home and building control systems, motor control fans, industrial converters and other equipment commonly operating in high-noise environments.

“Historically, 32-bit MCUs have been associated with lower voltage operation and considered unreliable in electromagnetically harsh environments such as factories or even many households,” said Brandon Tolany, v-p of Freescale MCU business development. “Kinetis E series MCUs have advanced electromagnetic compatibility [EMC] and electrostatic discharge [ESD] protection features designed to support compliance with industrial-grade reliability and temperature requirements.”

The argument is that one 32bit processor can replace multiple less-capable chips, and cost is kept down by giving the Kinetis E series large-pitch packaging options so single-layer board designs can be implemented.

Hardware features and pre-certified, fault-tolerant software routines are available to help designers meet the IEC 60730 Class B safety standard for household appliances, which is mandatory in European markets.

Design support comes through the FRDM-KE02Z Freescale Freedom development platform, Processor Expert software, as well as a software development kit providing access to sample software libraries.

Cortex-M0+ is also supported by IAR Embedded Workbench and the Keil MDK-ARM microcontroller development kit, and additional resources include middleware and software libraries, said Freescale.

Kinetis KE02 MCU features:
Electrical fast transient/electrostatic discharge (EFT/ESD) protection
Flash, RAM, register, watchdog and clock tests
2.7 to 5.5V and -40 to 105°C operating range
20MHz ARM Cortex-M0+ core
Single-cycle 32×32 multiplier
Single-cycle I/O access
Up to 64kbyte flash
256byte EEPROM
Up to 4kbyte RAM

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