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ARM Cortex-M3 MCU eases USB design

08 Oct 2012

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Toshiba Electronics Europe (TEE) has unveiled a 32bit ARM Cortex-M3 MCU that the company said reduces the component count of industrial and digital consumer applications where high performance, low power and USB functionality are key design requirements.

The TMPM365 integrates the ARM Cortex-M3 core, a USB device controller, a 12-channel analogue-to-digital converter (ADC), on-chip program and data memory, timers and configurable serial connectivity options into a BGA package measuring 9 x 9mm. Maximum processor speed is 48MHz and an integrated clock generator supports clock gearing of 1/1, 1/2, 1/4 and 1/8. Use of the low-power ARM core and high-efficiency NANOFLASH memory—as well as the availability of IDLE and STOP standby modes—all contribute to low power consumption in target application.

Compliant with USB 2.0, the single-channel USB device controller offers full-speed 12Mb/s operation and supports eight end-points. The 12bit ADC offers high-speed 1µs conversion and can start up from an internal 16bit timer or external trigger input. On-board memory comprises 256KB of NANOFLASH ROM, 24KB of SRAM and Boot ROM. A 2-channel DMA controller supports on-chip and external memory and peripheral I/O.

The TMPM365 incorporates a single-channel watchdog timer and a 10-channel 16bit timer. Connectivity options include a general-purpose serial interface that can be configured for UART or synchronous mode operation and a 2-channel serial bus interface selectable between I2C and synchronous mode.

Toshiba's MCU has an input voltage range of 2.7-3.6V when operating with the on-chip regulator or 3-3.45V when powered via USB. Rated operating temperature is -40°C to 85°C.

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