32-bit microcontrollers

4 February 2015 DSP, Micros & Memory

Microchip announced a new series of its low-cost, high pin-count 32-bit PIC32 microcontrollers (MCUs). By blending the key features of the existing PICM32MX1/2 and PIC32MX5 MCU families, this latest PIC32MX1/2/5 series delivers the benefits of a rich peripheral set for a wide range of cost-sensitive applications that require complex code.

With up to 83 DMIPS performance and large, scalable memory options from 512/64 KB Flash/RAM to 64/8 KB Flash/RAM, these new MCUs are ideal for executing the Bluetooth audio software required for low-cost Bluetooth audio applications, such as speakers, consumer music player docks, noise cancelling headsets and clock radios.

Flexible, easy-to-use CAN2.0B controllers are also integrated into these MCUs, with DeviceNet addressing support and programmable bit rates up to 1 Mbps, along with system RAM for storing up to 1024 messages in 32 buffers. This feature allows designers to easily employ CAN communication schemes for industrial and automotive applications.

The new series boasts a wide variety of additional features, including four SPI/I2S interfaces for audio processing and playback, a parallel master port (PMP) and capacitive touch sensing hardware for graphics and touch sensing interfaces; a 10-bit, 1 MSps, 48-channel analog-to-digital converter (ADC); as well as a full-speed USB 2.0 device/host/OTG peripheral. To maximise data throughput, each MCU includes four general-purpose direct memory access (DMA) controllers and two dedicated DMAs on each CAN and USB module.

Readily available software packages, such as Bluetooth audio development suites, Bluetooth Serial Port Profile (SPP) library, audio equaliser filter libraries, various decoders (including AAC, MP3, WMA and SBC), sample-rate conversion libraries, CAN2.0B PLIBs, USB stacks, and graphics libraries can rapidly reduce the development time of applications.

For more information contact Shane Padayachee, Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za

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