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Cortex-M3 MCUs target low-power embedded apps

Posted: 24 Feb 2011 ?? ?Print Version ?Bookmark and Share

Keywords:32bit ARM? Cortex-M3 MCUs? signal pre-processor? static memory controller?

Toshiba Electronics Europe has expanded its line of 32bit ARM Cortex-M3 MCUs to include four new devicesthe TMPM361, TMPM362, TMPM363 and TMPM364. The new MCUs are developed for use in embedded applications such as office equipment and industrial control systems, the design of which requires minimum power consumption and component count as well as high levels of connectivity.

All four devices feature 1MB of flash memory, 64Kb of on-chip RAM and a static memory controller with a 16bit external data bus that supports the addition of an additional 16MB of off-chip memory.

On-board functionality includes an 8- or 16-channel 10bit ADC, a real-time clock, a 16bit timer and a watchdog timer. A CE control unit and a remote control signal pre-processor simplify the implementation of designs requiring remote control functionality.

The TMPM361 and TMPM363 MCUs both offer 5-channel general-purpose serial I/O and 3-channel serial bus interface (SBI) connectivity. The TMPM362 and TMPM364 have 12 channels and five channels, respectively. A third SBI channel on both the TMPM361 and TMPM363 can be configured for I2C, while CAN and USB interfaces are built into the TMPM363 and TMPM364.

All of the micros provide a synchronous serial bus interface (SSP) that supports SPI, SSI and Microwire formats.

Compatible with supply voltages of between 2.7V and 3.6V, the TMPM36x MCUs operate with a maximum operating frequency of 64MHz. Designed to keep power consumption to a minimum, each device offers idle, sleep and stop standby modes as well as a backup module that can shut down all but the key functions.

The TMPM361 and TMPM363 are supplied in 100-pin, 14mm x 14mm LQFP packages, have eight dedicated inputs, and provide 68 and 66 I/Os, respectively. The TMPM362 and TMPM364 feature 20mm x 20mm 144-pin packaging, respective I/Os of 104 and 66, and up to 16 dedicated inputs.

The Keil MCBTMPM36x range of evaluation boards and starter kits support the MCUs, and allow designers to create and test working programs and key functionality.

- Colin Holland
??EE Times

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