103030296 Seeed Studio

MCP2557FD/8FD CAN FD Transceiver with Silent Mode Features Description Silent Mode is Useful in the Following The MCP2557FD/8FD CAN transceiver family is Applications: designed for high-speed CAN FD applications with up - Disables transmitter in redundant systems to 8 Mbps communication speed. The maximum prop- agation delay was improved to support longer bus - Implements babbling idiot protection length. - Tests connection of bus medium - Prevents a faulty CAN controller from The device meets automotive requirements for CAN FD bit rates exceeding 2 Mbps, low quiescent current, disrupting all network communications electromagnetic compatibility (EMC) and electrostatic Optimized for CAN FD at 2, 5 and 8 Mbps discharge (ESD). Operation: - Maximum propagation delay: 120 ns Package Types - Loop delay symmetry: 10%(2 Mbps) Meets or Exceeds Stringent Automotive Design MCP2557FD MCP2558FD Requirements Including Hardware Require- SOIC SOIC ments for LIN, CAN and FlexRay Interfaces in TXD S 1 8 TXD S 1 8 Automotive Applications, Version 1.3, May 2012: VSS CANH 2 7 VSS 2 7 CANH - Conducted emissions at 2 Mbps with VDD 3 6 CANL VDD 3 6 CANL Common-Mode Choke (CMC) 4 5 RXD NC RXD 4 5 VIO - DPI at 2 Mbps with CMC Meets SAE J2962/2 Communication Transceiv- MCP2557FD MCP2558FD ers Qualification Requirements CAN 2x3 TDFN* 2x3 TDFN* - Passes radiated emissions at 2 Mbps without TXD S TXD S 1 8 1 8 a CMC VSS CANH VSS CANH 2 7 2 7 EP EP Meets Latest ISO/DIS-11898-2:2015 9 9 VDD 3 6 CANL VDD 3 6 CANL Meets Latest SAE J2284-4 and -5 Working Drafts 4 5 4 5 RXD NC RXD VIO Digital Inputs of the MCP2557FD are Compatible to 3.3V and 5V Microcontrollers. RXD Output MCP2558FD MCP2557FD Requires a 5V Tolerant Microcontroller Input 3x3 DFN* 3x3 DFN* Functional Behavior Predictable Under all Supply TXD S 1 8 TXD S 1 8 Conditions: - Device is in Unpowered mode if VDD drops VSS CANH VSS CANH 2 7 2 7 EP EP below Power-on Reset (POR) level 9 9 VDD VDD CANL CANL 3 6 3 6 - Device is in Unpowered mode if VIO drops RXD NC RXD VIO 4 5 4 5 below POR level *Includes Exposed Thermal Pad (EP) see Table 1-1. Applications CAN 2.0 and CAN FD networks in Automotive, Industrial, Aerospace, Medical, and Consumer applications. MCP2557FD/8FD Family Members Device VIO Pin NC TTL I/O VIO I/O Description MCP2557FD N/A Yes Yes N/A MCP2558FD Yes N/A N/A Yes Internal level shifter on digital I/O pins. Note: For ordering information, see the Product Identification System section. 2016 Microchip Technology Inc. DS20005533A-page 1MCP2557FD/8FD Block Diagram VIO VDD DIGITAL I/O THERMAL POR SUPPLY PROTECTION UVLO VIO PERMANENT TXD DOMINANT DETECT CANH DRIVER AND VIO SLOPE CONTROL CANL MODE S CONTROL VDD CANH RXD HS RX CANL VSS Note: Only the MCP2558FD has the VIO pin. In the MCP2557FD, the supply for the digital I/O is internally connected to VDD. DS20005533A-page 2 2016 Microchip Technology Inc.