MCP2518FD External CAN FD Controller with SPI Interface

2021-10-14
●DEVICE OVERVIEW:
■The MCP2518FD device is a cost-effective and small-footprint CAN FD controller that can be easily added to a microcontroller with an available SPI interface. A CAN FD channel can be easily added to a microcontroller that is either lacking a CAN FD peripheral or does not have enough CAN FD channels.
■MCP2518FD supports both CAN frames in the Classical format (CAN2.0B) and CAN Flexible Data Rate (CAN FD) format, as specified in ISO 11898-1:2015.
●The MCP2518FD device was improved as follows:
■Added Low Power Mode (LPM), in order to reduce leakage current to 10 μA over the full temperature range.
■Extended SEQ field in Transmit Message Object and Transmit Event FIFO Object from 7 to 23 bits.
■Added DEVID register to distinguish between future members of the device family.
■Switched to saw cut DFN package with wettable flanks.
●Features:
■General
▲External CAN FD Controller with Serial Peripheral Interface (SPI)
▲Arbitration Bit Rate up to 1 Mbps
▲Data Bit Rate up to 8 Mbps
▲CAN FD Controller modes
◆Mixed CAN 2.0B and CAN FD Mode
◆CAN 2.0B Mode
▲Conforms to ISO 11898-1:2015
■Message FIFOs
▲31 FIFOs, configurable as Transmit or Receive FIFOs
▲One Transmit Queue (TXQ)
▲Transmit Event FIFO (TEF) with 32 bit time stamp
■Message Transmission
▲Message transmission prioritization:
◆Based on priority bit field
◆Message with lowest ID gets transmitted first using the Transmit Queue (TXQ)
▲Programmable automatic retransmission attempts: unlimited, 3 attempts or disabled
■Message Reception
▲32 Flexible Filter and Mask Objects
▲Each object can be configured to filter either:
◆Standard ID + first 18 data bits, or
◆Extended ID
▲32-bit Time Stamp
■Special Features
▲VDD: 2.7 to 5.5V
▲Active Current: maximum 20 mA at 5.5 V, 40 MHz CAN clock
▲Sleep Current: 15A, typical
▲Low Power Mode current: maximum 10μA from-40°C to +150°C
▲Message Objects are located in RAM: 2 KB
▲Up to 3 Configurable Interrupt Pins
▲Bus Health Diagnostics and Error Counters
▲Transceiver Standby Control
▲Start of frame pin for indicating the beginning of messages on the bus
▲AEC-Q100 Qualified
▲Temperature Ranges:
◆Extended (E): -40°C to +125°C
◆High (H): -40°C to +150°C
■Oscillator Options
▲40, 20 or 4 MHz Crystal or Ceramic Resonator; External Clock Input
▲Clock Output with Prescaler
■SPI Interface
▲Up to 20 MHz SPI clock speed
▲Supports SPI Modes 0,0 and 1,1
▲Registers and bit fields are arranged in a way to enable efficient access through SPI
■Safety Critical Systems
▲SPI commands with CRC to detect noise on SPI interface
▲Error Correction Code (ECC) protected RAM
■Additional Features
▲GPIO pins: INT0 and INT1 can be configured as general purpose I/O
▲Open drain outputs: TXCAN, INT, INT0, and INT1pins can be configured as push/pull or open drain outputs
▲ISO 26262 Functional Safety ready

Microchip

MCP2518FD

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Part#

External CAN FD Controller

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Datasheet

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Please see the document for details

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SOIC;MCP

English Chinese Chinese and English Japanese

December 2020

Rev B

DS20006027B

1.6 MB

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