High-speed, low-power ARM Cortex-M3 microcontroller simplifies USB designs

October 04, 2012 // By Paul Buckley
Toshiba Electronics Europe (TEE) has unveiled the company’s new 32-bit ARM Cortex-M3 microcontroller which has been developed to reduce 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 analog-to-digital converter (ADC), on-chip program and data memory, timers and configurable serial connectivity options into a BGA package measuring 9 mm x 9 mm. Maximum processor speed is 48 MHz 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 12 Mbps operation and supports eight endpoints. The 12-bit ADC offers high-speed 1 µs conversion and can start up from an internal 16-bit timer or external trigger input. On-board memory comprises 256 Kbytes of NANOFLASH ROM, 24 Kbytes 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 16-bit 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 new microcontroller has an input voltage range of 2.7 V to 3.6 V when operating with the on-chip regulator or 3.0 V to 3.45 V when powered via USB. Rated operating temperature is -40 to 85°C.

Visit Toshiba at www.toshiba-components.com