MCUs: Microchip beefs up its PIC32 CPUs for connectivity -

MCUs: Microchip beefs up its PIC32 CPUs for connectivity


Chandler, Az. – Microchip Technology Inc. has just announced three new PIC32 microcontrollers that provide up to 128 Kbytes of RAM and extensive connectivity options, including 10/100 Mbps Ethernet, two CAN2.0b controllers, USB Host, Device and OTG, and 6 UART, 5 I2C and 4 SPI ports.

According to Sumit Mitra vice president of Microchip's High Performance Microcontroller Division , the new MCU families are complemented by Microchip's free software stacks, available in source-code form, to make it easier for embedded designers to add connectivity to their applications.

The new PIC32MX5/6/7 families are designed specifically for data-intensive applications where the demand for embedded connectivity continues to grow, forcing existing products to run more software stacks simultaneously.

Designers have full access to up to 128 KB of RAM for simultaneous use with the Ethernet, USB and CAN buffers. The integrated Ethernet, CAN and USB modules have a built-in DMA interface to maximize data throughput.

The integrated 100 Mbps Ethernet MAC uses an industry-standard RMII/MIII interface to low-cost, commodity Physical Interface chips (PHYs). Additionally, he said, each MCU has a unique, factory-preprogrammed Ethernet MAC address, which simplifies the manufacturing process.

Flexible, easy-to-use CAN2.0b controllers have been added to the PIC32, which use system RAM for storing up to 1024 messages in 32 buffers. Advanced filtering capabilities include user selectable filter-to-buffer mapping with 32 filters and 4 filter masks. All of these functions allow designers to easily adapt CAN communication schemes to their applications.

Mitra said free TCP/IP and USB software stacks are available, including full source code, to further enable easy software development, quicker time to market and lower overall costs.

Available software includes two TCP/IP software stacks, along with libraries for USB Host and Device, Advanced Encryption Standard (AES), multiple file systems, advanced graphics, audio, and many other software products.

The new PIC32MX5/6/7 families are pin compatible with the existing PIC32 and 16-bit PIC24F USB MCU families.

Available are a new $72 PIC32 Ethernet Starter Kit (part # DM320004) for easy Ethernet-based development, and the $55 PIC32 USB Starter Kit II (part # DM320003-2), an upgrade of Microchip's existing USB starter kit for the new families. Owners of the Explorer 16 Development Board (part # DM240001) can purchase a $25 plug-in module for development with the new PIC32MX5/6/7 families (part # MA320003).

The three new PIC32MX5/6/7 families are now for sampling and volume production. 10,000 unit pricing ranges from $4.73 each for the PIC32MX575F256H, up to $6.55 each for the PIC32MX795F512L. Packaging options include 100-pin TQFP and BGA packages, and 64-pin TQFP and QFN packages.

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