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
bus specification versions 1.3, 2.0 and 2.1 and SAE
J2602. The transceivers' EMC/ESD performance is
among the best in the industry and meets all automotive
requirements. The MCP2003A is available in an industry
standard 8-pin SOIC pin out. The MCP2004A offers a
TXE/Fault pin which allows users the ability to disable the
transmitter in addition to providing data related to a fault
condition.
LIN Transceivers With Voltage Regulator
The MCP202XA family of LIN transceivers integrates the
LIN physical layer, 3.3V or 5V internal voltage regulator,
with a maximum output current of 70 mA.
The devices support LIN bus specification versions 1.3,
2.0 and 2.1 and SAE J2602 and are designed to meet
the stringent EMC/ESD requirements of the world’s auto
makers.
Microchip also offers the MCP2050 LIN Transceiver with
Voltage regulator, windowed watchdog timer and ratio
metric V BAT pin that allows for monitoring battery levels by
a MCU A/D converter.
Controller Area Network (CAN)
CAN is a serial communication protocol used extensively
for high speed embedded applications where noise
immunity and robustness is necessary. CAN protocol
supports speeds up to 1 Mbps and is highly fault-tolerant,
making it ideal for safety critical applications.
Microchip offers a complete line of products to meet
the needs of high-performance embedded applications
using the CAN protocol, including 8-, 16- and 32-bit
microcontrollers and 16-bit digital signal controllers with
integrated CAN, standalone CAN controllers, I/O expanders
and CAN transceivers.
CAN MCUs and DSCs
The 8-bit PIC18F66K80 family offers the industry's best
Sleep current of less than 20 nA, a wide operating voltage
range of 1.8 to 5.5V and an advanced touch sensing
interface. The 16-bit PIC24 and dsPIC33 families offer
higher density Flash memories and high temperature
operation of up to 150°C ambient. The 32-bit PIC32 family
offers higher performance and better peripheral integration
like Ethernet and USB.
At the heart of Microchip’s CAN offering is the
enhanced CAN module offered on-board many Microchip
microcontrollers. Key features include:
■ CAN 1.2, CAN 2.0A and CAN 2.0B support
■ 32 buffers for TX/RX
■ 32 acceptance filters
■ 4 acceptance mask filters
■ Time stamping
■ DMA support in 16-bit PIC24H and PIC32
microcontrollers and dsPIC33F digital signal controllers
■ DeviceNet? support
■ Legacy mode
Standalone CAN Controller
Microchip Technology’s MCP2515 is a stand-alone
Controller Area Network (CAN) controller that implements
the CAN specification, version 2.0B. It is capable of
transmitting and receiving both standard and extended
data and remote frames. The MCP2515 interfaces with
MCUs via an industry standard Serial Peripheral Interface
(SPI) and can be used as an easy method to implement
CAN in an existing system.
CAN Transceivers
The MCP2551 is a high-speed CAN device that serves as
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
Connectivity Solutions
www.microchip.com/lin
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