Details

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BUY MCP2515-I/SO https://www.utsource.net/itm/p/12542770.html

Parameter	Description	Value
Device	CAN Controller with SPI Interface	MCP2515-I/SO
Package	28-pin SSOP (Shrink Small Outline Package)	-
Operating Voltage (VCC)	Supply Voltage Range	4.75 V to 5.25 V
CAN Bus Differential Input Voltage Range	Differential Input Voltage for CANH and CANL	-2 V to 7 V
CAN Bus Differential Output Voltage Range	Differential Output Voltage for CANH and CANL	±2 V
CAN Bus Data Rate	Maximum Data Rate	Up to 1 Mbps
SPI Interface	Serial Peripheral Interface	3-wire or 4-wire SPI
SPI Clock Frequency	Maximum SPI Clock Frequency	10 MHz
Operating Temperature Range	Industrial Temperature Range	-40°C to +125°C
Standby Current	Current Consumption in Standby Mode	< 200 μA
Active Current	Current Consumption in Active Mode	9 mA (typical)
CAN Protocol Compliance	CAN 2.0B Active	-
Interrupt Output	Active Low Open-Drain Interrupt Output	-
Sleep Mode	Low-Power Sleep Mode	-

Instructions for Use:

1. Power Supply:

   • Connect the VCC pin to a stable 5V power supply.
   • Connect the GND pin to the ground.

2. CAN Bus Connection:

   • Connect the CANH and CANL pins to the CAN bus lines.
   • Ensure proper termination resistors (120Ω) are used on the CAN bus.

3. SPI Interface:

   • Connect the SPI pins (MOSI, MISO, SCK, CS) to the corresponding pins on your microcontroller.
   • Configure the SPI interface to operate at a maximum clock frequency of 10 MHz.

4. Initialization:

   • Send the appropriate initialization commands via the SPI interface to configure the CAN controller.
   • Set the desired bit rate, mode (normal, loopback, listen-only), and filter settings.

5. Data Transmission:

   • Use the transmit buffer to send data frames over the CAN bus.
   • Ensure the CAN bus is not overloaded by managing the transmission rate.

6. Data Reception:

   • Monitor the receive buffer for incoming data frames.
   • Use the interrupt output (INT) to signal when new data is available.

7. Sleep Mode:

   • Enter sleep mode to reduce power consumption by sending the appropriate command.
   • Wake up from sleep mode by sending a wake-up command or by an external interrupt.

8. Error Handling:

   • Monitor error counters and status registers to detect and handle errors.
   • Implement error recovery mechanisms as needed.

9. Temperature Considerations:

   • Ensure the device operates within the specified temperature range to avoid damage.
   • Provide adequate cooling if operating in high-temperature environments.

10. Standby Mode:

    • Use the standby mode to reduce power consumption when the device is not actively transmitting or receiving data.
    • Reconfigure the device when exiting standby mode.

For detailed register maps and specific command sequences, refer to the MCP2515 datasheet.

(For reference only)