MCP2551 CAN Protocol Controller Module

The CJMCU-2551 MCP2551 CAN Pro­to­col Con­troller High-speed Inter­face Mod­ule is a high speed CAN, with fault-tol­er­ant capa­bil­i­ties. It acts as an inter­fac­ing device between CAN pro­to­col and the phys­i­cal bus. The device, MCP2551 pro­vides dif­fer­en­tial trans­mit and receive capa­bil­i­ties and is com­pli­ant with the ISO-11898, includ­ing the 24V require­ments. Data trans­fer rate of up to 1Mb/s is achiev­able with this mod­ule.The mod­ule also pro­vides a buffer between the CAN con­troller and the high-volt­age spikes that can be gen­er­at­ed on the CAN bus by out­side sources like EMI, ESD, elec­tri­cal tran­sients, etc.Pin Description:Pin Num­berPin NamePin Func­tion1TXDTrans­fer Data Input2VSSGround3VDDSup­ply Volt­age4RXDReceive Data Out­put5VREFRef­er­ence Out­put Volt­age6CANLCAN Low-Lev­el Volt­age I/O7CANHCAN High-Lev­el Volt­age I/O8RSSlope-con­trol InputFeatures: Sup­ports 1 Mb/s oper­a­tionImple­ments ISO-11898 stan­dard phys­i­cal lay­er require­mentsSuit­able for 12V and 24V sys­temsThe exter­nal­ly-con­trolled slope for reduced RFI emis­sions Detec­tion of ground fault (per­ma­nent Dom­i­nant) on TXD inputPow­er-on Reset and volt­age brown-out pro­tec­tionAn unpow­ered node or brown-out event will not dis­turb the CAN busLow cur­rent stand­by oper­a­tionPro­tec­tion against dam­age due to short-cir­cuit con­di­tions (pos­i­tive or neg­a­tive bat­tery volt­age)Pro­tec­tion against high-volt­age tran­sientsAuto­mat­ic ther­mal shut­down pro­tec­tionUp to 112 nodes can be con­nect­edHigh-noise immu­ni­ty due to dif­fer­en­tial bus imple­men­ta­tionTem­per­a­ture ranges: – Indus­tri­al (I): ‑40°C to 85°C – Extend­ed (E): ‑40°C to 125°C DATASHEETRelated