Microchip introduced four new PIC18F CAN (controller area network) PIC Flash microcontrollers, including what it calls 'the world's largest memory 8-bit CAN microcontroller in a 28-pin package.' These devices combine the innovative ECAN module, Enhanced Flash memory and nanoWatt technology power management into a very small form factor.
Automotive and industrial engineers designing embedded systems have a growing need for cost-effective 8-bit microcontrollers with built-in CAN functionality and flexible Flash memory, balanced with a requirement to consume less power and take up less space. Microchip's new 28-, 40- and 44-pin PIC18F microcontrollers can help solve these design issues.
The PIC18F4680, PIC18F2680, PIC18F4585 and PIC18F2585 microcontrollers feature 64 Kbytes or 48 Kbytes of Enhanced Flash program memory, which supports self-programming and ICSP, allowing the microcontroller to be programmed after assembly.
"As manufacturers continue to add electronics for distributing intelligence within the automobile, there is a growing need for high-performance microcontrollers in small packages with innovative power management capabilities," said Dan Termer, vice president of Microchip's Automotive Products Group. "Our new ECAN devices offer the smallest footprint and high performance to help meet these needs. Each microcontroller features a flexible and easy-to-use CAN 2.0B interface. The industry-unique ECAN module offers configurable transmit and receive (TX/RX) buffers that can be employed for standard CAN operation or as FIFO registers, allowing one device to be used for multiple applications. The on-board ECAN module enables multiple applications to be configured on a single node, easier implementation to a software protocol bridge from a CAN network and a device to be re-used across different applications."
Code-compatible with existing PIC microcontrollers that feature CAN, the company says the new devices allow customers to easily migrate to a more scalable CAN device with larger Flash memory. The ECAN module supports standard Bosch CAN specifications and provides hardware support for the DeviceNet protocol and a FIFO state machine. To enable these multiple functions, the ECAN module features three software configurable operating modes: Legacy, Enhanced and FIFO.
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