MCP2515-E/STVAO

Product Overview

• Category: Integrated Circuit (IC)
• Use: Controller Area Network (CAN) Bus Controller
• Characteristics: High-speed SPI Interface, Supports CAN V2.0B Protocol, 8 MHz Oscillator, 3 Transmit and 3 Receive Buffers, etc.
• Package: SOIC-18
• Essence: The MCP2515-E/STVAO is a widely used CAN bus controller IC that enables communication between microcontrollers and CAN networks.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 10 MHz
• Transmit/Receive Buffers: 3 each
• Supported CAN Protocol: CAN V2.0B (29-bit Extended Identifier Support)
• SPI Interface Speed: Up to 10 MHz

Pin Configuration

The MCP2515-E/STVAO has a total of 18 pins arranged as follows:

1. VDD - Power Supply
2. VSS - Ground
3. OSC1 - Crystal Oscillator Input
4. OSC2 - Crystal Oscillator Output
5. CS - Chip Select
6. SO - Serial Data Output
7. SI - Serial Data Input
8. SCK - Serial Clock Input
9. INT - Interrupt Output
10. RX0BF - Receive Buffer 0 Full
11. RX1BF - Receive Buffer 1 Full
12. TX0RTS - Transmit Buffer 0 Request-to-Send
13. TX1RTS - Transmit Buffer 1 Request-to-Send
14. TX2RTS - Transmit Buffer 2 Request-to-Send
15. RX0 - Receive Pin 0
16. RX1 - Receive Pin 1
17. TX0 - Transmit Pin 0
18. TX1 - Transmit Pin 1

Functional Features

• Supports both Standard (11-bit) and Extended (29-bit) Identifier Formats
• Three Transmit and Three Receive Buffers for Efficient Message Handling
• Programmable Bit Rate up to 1 Mbps
• Error Detection and Error Flag Generation
• Sleep Mode for Low Power Consumption
• Maskable Interrupt Output for Event Notification
• SPI Interface for Communication with Microcontrollers

Advantages and Disadvantages

Advantages

• Easy integration with microcontrollers through the SPI interface.
• Supports both Standard and Extended CAN identifier formats.
• Multiple transmit and receive buffers enhance message handling efficiency.
• Wide operating voltage range allows compatibility with various systems.
• High-speed communication with a maximum clock frequency of 10 MHz.

Disadvantages

• Limited number of transmit and receive buffers may restrict simultaneous message handling in complex applications.
• Lack of built-in protection features against electrical transients or ESD events.

Working Principles

The MCP2515-E/STVAO acts as a bridge between microcontrollers and Controller Area Network (CAN) networks. It communicates with the microcontroller using the Serial Peripheral Interface (SPI). The IC handles the encoding and decoding of CAN messages, including arbitration, error detection, and frame acknowledgment. It supports both Standard and Extended CAN identifier formats, allowing compatibility with a wide range of CAN devices. The MCP2515-E/STVAO also provides multiple transmit and receive buffers, enabling efficient message handling and reducing the load on the microcontroller.

Detailed Application Field Plans

The MCP2515-E/STVAO finds applications in various fields, including:

1. Automotive: Used in automotive electronics for communication between different control units, such as engine management systems, body control modules, and instrument clusters.
2. Industrial Automation: Enables communication between industrial devices and controllers in manufacturing plants, process automation, and robotics.
3. Home Automation: Facilitates communication between smart home devices, allowing seamless integration and control of various appliances and systems.
4. Medical Devices: Used in medical equipment for data exchange between different modules, ensuring reliable and efficient communication.

Detailed and Complete Alternative Models

1. MCP2510: An earlier version of the MCP2515-E/STVAO with similar features but limited transmit and receive buffers.
2. MCP2561: A CAN transceiver IC that complements the MCP2515-E/STVAO by providing physical layer connectivity to the CAN bus.
3. TJA1050: Another popular CAN transceiver IC commonly used with the MCP2515-E/STVAO.

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