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32bit MCU delivers high performance at low power

Posted: 13 Apr 2010 ?? ?Print Version ?Bookmark and Share

Keywords:microcontroller? MCU? consumer electronics? power consumption?

TMPM395FWXBG MCU

Extending its range of ARM Cortex-M3 32bit microcontrollers, Toshiba Electronics Europe has released a miniature device that combines high-performance processing with ultralow-power operation.

Working with voltages down to just 1.7V and supplied in a 6mm x 6mm BGA package, the TMPM395FWXBG is suitable for applications ranging from battery-powered and portable devices to home appliances and consumer electronics goods.

The high efficiency ARM core operating at up to 20MHz and an optimized design ensure minimal power consumption during operation. A range of standby modes reduce currents to as little as 1? A (RTC mode) when processing is not required.

The new microcontroller simplifies applications with remote control functionality by incorporating a consumer electronics control unit and a remote control signal pre-processor (RMC). For home appliance designs an integrated Oscillation Frequency Detector facilitates hardware monitoring of the CPU clock to enable compliance with the requirements of safety standard IEC60730 (Class B).

The TMPM395FWXBG is supplied with 128Kbyte of flash memory and 8Kbyte of RAM. On-board peripherals comprise a 10bit, 12-channel ADC, a real time clock (RTC), 10-channel 16bit timer and a watchdog timer. An internal high-speed 10MHz oscillator and voltage detector are also provided.

Connectivity includes a three-channel general purpose serial interface that can be configured for either UART or synchronous operation and a two-channel serial bus interface that allows selection of I?C bus or synchronous mode. A four-channel synchronous serial interface offering a 3V-tolerant SPI mode is also provided. Despite its small size, the MCU provides 91 pins for I/O.

The chip features four standby modesidle, slow, sleep, Back-up stopand three sub-clock (32.768kHz) operation modes of slow, sleep and RTC.

- Julien Happich
EE Times Europe





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