MCP2515T-I/ML

Product Overview

• Category: Integrated Circuit (IC)
• Use: Controller Area Network (CAN) Bus Controller
• Characteristics: High-speed SPI Interface, Supports CAN V2.0B Protocol, 8MHz Oscillator, 3 Transmit and 2 Receive Buffers, etc.
• Package: QFN-20
• Essence: MCP2515T-I/ML is a highly integrated and cost-effective CAN controller that allows microcontrollers to communicate with CAN bus networks.
• Packaging/Quantity: The MCP2515T-I/ML is available in a tape and reel packaging, with 2500 units per reel.

Specifications

The MCP2515T-I/ML offers the following specifications:

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum SPI Clock Frequency: 10 MHz
• Transmit and Receive Buffer Size: 3 Transmit Buffers and 2 Receive Buffers
• CAN Bit Rates: Up to 1 Mbps
• Supports CAN V2.0B Protocol

Pin Configuration

The MCP2515T-I/ML has a total of 20 pins. The detailed pin configuration is 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
19. TX2 - Transmit Pin 2
20. SDO - Serial Data Output (Alternate)

Functional Features

The MCP2515T-I/ML offers the following functional features:

• High-speed SPI Interface for communication with microcontrollers
• Supports CAN V2.0B protocol, allowing compatibility with various CAN networks
• Three transmit and two receive buffers for efficient data transmission
• Built-in oscillator with an 8MHz frequency for accurate timing

Advantages and Disadvantages

Advantages of the MCP2515T-I/ML include:

• Cost-effective solution for implementing CAN bus communication
• Easy integration with microcontrollers through the SPI interface
• Supports high-speed data transfer up to 1 Mbps
• Flexible buffer configuration for efficient message handling

Disadvantages of the MCP2515T-I/ML include:

• Limited number of transmit and receive buffers may restrict simultaneous communication
• Requires external crystal oscillator for clock generation

Working Principles

The MCP2515T-I/ML acts as a bridge between a microcontroller and a Controller Area Network (CAN) bus network. It communicates with the microcontroller through the SPI interface, enabling the exchange of data between the microcontroller and the CAN bus.

The MCP2515T-I/ML follows the CAN protocol standards and supports both standard and extended frames. It provides three transmit buffers and two receive buffers, allowing the microcontroller to send and receive messages on the CAN bus.

The integrated oscillator ensures accurate timing for data transmission and reception. The MCP2515T-I/ML also generates interrupts to notify the microcontroller of events such as received messages or buffer status changes.

Detailed Application Field Plans

The MCP2515T-I/ML is widely used in various applications that require communication over a Controller Area Network (CAN) bus. Some of the common application fields include:

1. Automotive: Used in automotive systems for communication between different electronic control units (ECUs), such as engine control modules, transmission control modules, and body control modules.
2. Industrial Automation: Employed in industrial automation systems for interconnecting sensors, actuators, and other devices in a distributed control system.
3. Medical Devices: Integrated into medical devices for data exchange between different components, ensuring reliable and efficient communication.
4. Home Automation: Utilized in home automation systems to enable communication between smart devices, allowing centralized control and monitoring.

Alternative Models

In addition to the MCP2515T-I/ML, there are several alternative models available in the market that offer similar functionality. Some popular alternatives include:

1. MCP2510: An earlier version of the MCP2515 with similar features but a different pin configuration.
2. MCP2561: A