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LIN and CAN Bus Solutions Taking Communication and Connectivity in Deeply Embedded Designs to the Next Level Local Interconnect Network (LIN) LIN/J2602 is a communication standard designed to address low-cost networking within vehicles. LIN enables a cost-effective communication network for lower speed switch, smart sensor and actuator applications within the vehicle where the bandwidth and versatility of CAN is not required. LIN can be implemented on any PIC microcontroller (MCU) with a UART or USART interface. Microchip also offers a robust physical layer interface, data link layer implementation, LIN compliant drivers and a variety of development resources. Standalone LIN Transceivers The MCP2003/4(A) family of LIN transceivers offers a standalone LIN transceiver option. Both parts meet LIN CAN MCUs and DSCs bus specification versions 1.3, 2.0 and 2.1 and SAE The 8-bit PIC18F66K80 family offers the industry's best J2602. The transceivers' EMC/ESD performance is Sleep current of less than 20 nA, a wide operating voltage among the best in the industry and meets all automotive range of 1.8 to 5.5V and an advanced touch sensing requirements. The MCP2003A is available in an industry interface. The 16-bit PIC24 and dsPIC33 families offer standard 8-pin SOIC pin out. The MCP2004A offers a higher density Flash memories and high temperature TXE/Fault pin which allows users the ability to disable the operation of up to 150°C ambient. The 32-bit PIC32 family transmitter in addition to providing data related to a fault offers higher performance and better peripheral integration condition. like Ethernet and USB. At the heart of Microchip’s CAN offering is the LIN Transceivers With Voltage Regulator enhanced CAN module offered on-board many Microchip The MCP202XA family of LIN transceivers integrates the microcontrollers. Key features include: LIN physical layer, 3.3V or 5V internal voltage regulator, ■ CAN 1.2, CAN 2.0A and CAN 2.0B support with a maximum output current of 70 mA. ■ 32 buffers for TX/RX The devices support LIN bus specification versions 1.3, ■ 32 acceptance fi lters 2.0 and 2.1 and SAE J2602 and are designed to meet ■ 4 acceptance mask fi lters the stringent EMC/ESD requirements of the world’s auto ■ Time stamping makers. ■ DMA support in 16-bit PIC24H and PIC32 Microchip also offers the MCP2050 LIN Transceiver with microcontrollers and dsPIC33F digital signal controllers Voltage regulator, windowed watchdog timer and ratio ■ DeviceNet™ support metric VBAT pin that allows for monitoring battery levels by ■ Legacy mode a MCU A/D converter. Standalone CAN Controller Controller Area Network (CAN) Microchip Technology’s MCP2515 is a stand-alone CAN is a serial communication protocol used extensively Controller Area Network (CAN) controller that implements for high speed embedded applications where noise the CAN specification, version 2.0B. It is capable of immunity and robustness is necessary. CAN protocol transmitting and receiving both standard and extended supports speeds up to 1 Mbps and is highly fault-tolerant, data and remote frames. The MCP2515 interfaces with making it ideal for safety critical applications. MCUs via an industry standard Serial Peripheral Interface Microchip offers a complete line of products to meet (SPI) and can be used as an easy method to implement the needs of high-performance embedded applications CAN in an existing system. using the CAN protocol, including 8-, 16- and 32-bit microcontrollers and 16-bit digital signal controllers with CAN Transceivers integrated CAN, standalone CAN controllers, I/O expanders The MCP2551 is a high-speed CAN device that serves as and CAN transceivers. the interface between a CAN controller and the physical bus. The MCP2551 provides differential transmit and receive capability for the CAN protocol controller and is fully compatible with the ISO-11898 standard, including 24V requirements. 6 Graphics Quick Reference Guide www.microchip.com/lin


EETE SEPTEMBER 2012
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