Microchip Technology
Microchip MCP2551-I/SN CANbus Transceiver, Half-Duplex, 1/1 Drivers/Receivers, 4.5V~5.5V Supply, 200 mV Receiver Hysteresis, -40°C~85°C, 8-SOIC Package, Tube.
MOQ 1 · Tube · RoHS · EIA-481 · DAP/DDP · T/T
| Parameter / Attribute | Specification / Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Protocol | CANbus |
| Operating temperature | -40°C~85°C |
| Duplex | Half |
| Package | Tube |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 200 mV |
| Number of drivers (Receivers) | 1/1 |
Package: SOIC-8 · Pin-compatible replacements with immediate Shenzhen spot stock
MCP2551 is a legacy 5V high-speed CAN transceiver widely used in automotive OBD-II and industrial CANopen networks. NXP TJA1050/TJA1051 and SIT SIT1050T provide drop-in pinout compatibility with lower electromagnetic emissions (EME) and advanced CAN-FD support up to 5 Mbps.
AEC-Q100 Automotive-Grade Reliability with Proven Track Record
Continuous Distribution Inventory
Up to 1 Mbps CAN bus data rate, excellent passive behavior when unpowered
4.75V – 5.25V
Immediate Shenzhen Stock with ±40V Bus Fault Protection
Immediate Shenzhen Stock
ISO 11898-2 compliant, high-speed CAN transceiver up to 1 Mbps
4.5V – 5.5V, ±40V bus fault protection
Q: Can I use TJA1050 to replace MCP2551 in 24V industrial equipment?
A: Yes. Both transceivers are powered by a local 5V rail and interface to standard CAN differential buses. TJA1050 offers lower radiated emissions and enhanced bus-pin ESD protection.
The Microchip MCP2551-I/SN is a half-duplex CANbus transceiver that interfaces a CAN protocol controller to the physical two-wire bus. It handles the differential transmit and receive signals, providing 200 mV of receiver hysteresis for noise rejection on the bus lines.
It is not designed for 3.3V-only microcontrollers without a level shifter or a separate 5V supply — the transceiver's VCC must be in the 4.5V–5.5V window for proper bus drive levels.
