MCP2515

Part: MCP2515-I/SO — Microchip Technology

Type: Stand-Alone CAN Controller with SPI Interface

Description: Stand-alone CAN V2.0B controller supporting 1 Mb/s CAN with a 10 MHz SPI interface, operating from 2.7–5.5 V, with three transmit buffers, two receive buffers, six filters and two masks.

Operating Conditions:

• Supply voltage: 2.7–5.5 V
• Operating temperature: -40 to +85 °C (Industrial, I suffix; the Extended E grade extends to +125 °C)
• Clock input frequency: 1–40 MHz at VDD = 4.5–5.5 V; 1–25 MHz at VDD = 2.7–5.5 V

Absolute Maximum Ratings:

• Max supply voltage (VDD): 7.0 V
• Input/output voltage w.r.t. VSS: -0.6 V to VDD + 1.0 V
• Storage temperature: -65 to +150 °C
• Ambient temperature with power applied: -65 to +125 °C
• Soldering temperature of leads (10 s): +300 °C

Key Specs:

• Supply voltage (VDD): 2.7–5.5 V
• Register retention voltage (VRET): 2.4 V min
• Operating current (IDD): 10 mA max (VDD = 5.5 V, FOSC = 25 MHz, FCLK = 1 MHz, SO open); 5 mA typical per features list
• Standby current, Sleep mode (IDDS): 5 μA max at -40 to +85 °C; 8 μA max at -40 to +125 °C; 1 μA typical per features list
• High-level input voltage: SCK, CS, SI, TXnRTS pins 0.7 VDD min; RXCAN pin 2 V min
• Low-level input voltage: SCK, CS, SI pins 0.4 VDD max; RXCAN, TXnRTS pins 0.15 VDD max
• Low-level output voltage: 0.6 V max (IOL = +6.0 mA for TXCAN, +8.5 mA for RXnBF, +2.1 mA for SO/CLKOUT, +1.6 mA for INT; VDD = 4.5 V)
• Input leakage current: ±1 μA (all I/Os except OSC1 and TXnRTS); ±5 μA (OSC1)

Features:

• Implements CAN V2.0B at 1 Mb/s with standard and extended data and remote frames (0–8 byte data field)
• Two receive buffers with prioritized message storage, six 29-bit filters and two 29-bit masks
• Data byte filtering on the first two data bytes (standard data frames)
• Three transmit buffers with prioritization and abort features
• High-speed SPI interface (10 MHz), modes 0,0 and 1,1
• One-shot mode for single transmission attempts
• Clock output pin with programmable prescaler; Start-of-Frame signal output
• Interrupt output pin with selectable enables; RXnBF buffer-full pins configurable as interrupts or general-purpose outputs
• TXnRTS request-to-send pins configurable as transmit controls or general-purpose inputs
• Low-power CMOS technology

Applications:

• CAN bus interfacing for microcontrollers via SPI

Package:

• SOIC (18-pin, this ordering variant)
• Other family packages: PDIP (18-pin), TSSOP (20-pin), QFN (20-pin with exposed pad)

• Implements CAN V2.0B at 1 Mb/s:
• -0 to 8-byte length in the data field
• -Standard and extended data and remote frames
• Receive Buffers, Masks and Filters:
• -Two receive buffers with prioritized message storage
• -Six 29-bit filters
• -Two 29-bit masks
• Data Byte Filtering on the First Two Data Bytes (applies to standard data frames)
• Three Transmit Buffers with Prioritization and Abort Features
• High-Speed SPI Interface (10 MHz):
• -SPI modes 0,0 and 1,1
• One-Shot mode Ensures Message Transmission is Attempted Only One Time
• Clock Out Pin with Programmable Prescaler:
• -Can be used as a clock source for other device(s)
• Start-of-Frame (SOF) Signal is Available for Monitoring the SOF Signal:
• -Can be used for time slot-based protocols and/or bus diagnostics to detect early bus degradation
• Interrupt Output Pin with Selectable Enables
• Buffer Full Output Pins Configurable as:
• -Interrupt output for each receive buffer
• -General purpose output
• Request-to-Send (RTS) Input Pins Individually Configurable as:
• -Control pins to request transmission for each transmit buffer
• -General purpose inputs
• Low-Power CMOS Technology:
• -Operates from 2.7V-5.5V
• -5 mA active current (typical)
• -1 μ A standby current (typical) (Sleep mode)
• Temperature Ranges Supported:
• -Industrial (I): -40°C to +85°C
• -Extended (E): -40°C to +125°C

NOTES:

Note 1: The diode, D, helps discharge the capacitor quickly when V DD powers down.

• 2: R1 = 1 k to 10 k will limit any current flowing into RESET from the external capacitor, C, in the event of RESET pin breakdown due to Electrostatic Discharge (ESD) or Electrical Overstress (EOS).

NOTES:

Note 1: This parameter is periodically sampled and not 100% tested.

† Notice: Stresses above those listed under 'Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.