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MCP2515-E/ML - 1 Mbps CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515-E/ML is a stand-alone Controller Area Network controller with a serial peripheral interface, a CAN 2.0B-compliant protocol engine, and a 20-QFN 4 x 4 mm package. It supports standard data frames, extended data frames, and remote frames at up to 1 Mb/s. The controller provides two receive buffers, acceptance masks, acceptance filters, and byte-level filtering for separating accepted traffic from other CAN traffic. A CAN controller is an interface IC that converts commands and received bus data into a serial interface suitable for a host microcontroller. Within the broader hierarchy, the MCP2515-E/ML is a stand-alone CAN interface controller, an industrial communications interface IC, and a peripheral for embedded control systems. Unlike a combined controller and transceiver, it requires an external CAN transceiver to connect its logic-level CANH and CANL pins to a physical CAN bus. The -E variant is identified in the verified data as a 5 V, lead-free 4 x 4 mm plastic QFN device with an operating temperature range of -40 C to +125 C. Its CAN implementation supports 1 Mb/s operation and handles standard, extended, and remote frames. Two receive buffers, masks, and filters support message prioritization and traffic management, while the SPI host interface allows an external microcontroller or processor to configure the controller and exchange CAN frames. The MCP2515 family is described by Microchip as a second-generation stand-alone CAN controller. The device is compatible in function and pin arrangement with the MCP2510 while adding faster throughput, byte filtering, and support for time-triggered protocols. These features make it useful where deterministic message handling, reception filtering, and host-processor independence are important rather than using an MCU-integrated CAN peripheral. Typical uses include industrial automation equipment, automotive body and comfort systems, building controls, robotics, medical equipment, and embedded monitoring systems. In these applications, the MCP2515-E/ML handles CAN framing and filtering while the external microcontroller manages application logic, diagnostics, and communications above the CAN bus. Designers should verify the exact pin assignments and exposed-pad connection against the manufacturer datasheet before layout. The SPI interface, oscillator timing, interrupt signals, and standby behavior also require attention in firmware and PCB planning. This page combines verified manufacturer and distributor information with practical integration guidance, comparison criteria, and procurement-oriented details for engineers evaluating the MCP2515-E/ML.
MCP2515-E/MLVAO - 1 Mbps CAN Controller SPI 20-QFN
The Microchip Technology MCP2515-E/MLVAO is a stand-alone CAN controller with an SPI interface, a maximum CAN data rate of 1 Mbps, and a 20-QFN package. It supports standard and extended data frames, remote frames, filtering, and time-triggered protocols. The device is designed as a host-controlled CAN protocol engine for embedded systems that already provide a physical-layer CAN transceiver. A CAN controller is an interface integrated circuit that organizes CAN frames, manages reception filters, and transfers data between a host processor and a CAN bus. In the hierarchy of electronic components, it belongs to the interface-controller family rather than the transceiver family: the MCP2515-E/MLVAO handles protocol processing, while a separate device connects the controller to the differential CANH and CANL bus. This separation allows the same controller to be used with different transceivers and bus isolation arrangements. The verified product material identifies CAN 2.0 compatibility, SPI connectivity, 1 Mbps operation, and sleep or standby functionality. The MCP2515 is also described as pin and function compatible with the MCP2510 and as offering upgraded throughput, databyte filtering, and support for time-triggered protocols. Its 20-QFN (4 mm x 4 mm) package supports compact PCB layouts, while the automotive-oriented ordering suffix identifies the variant shown in the supplied data. Typical uses include automotive body and powertrain electronics, industrial automation equipment, robotics, instrument panels, gateways, and embedded diagnostic systems. The controller is particularly useful when a microcontroller needs CAN frame handling without implementing the protocol in software. In such designs, the host connects through SPI to the MCP2515-E/MLVAO, and the controller communicates with a separate CAN transceiver through its CAN input and output signals. Designers should verify the complete electrical limits, timing, transceiver requirements, crystal requirements, and pin-level details in the manufacturer datasheet before layout. SPI signal integrity, grounding, decoupling, CAN-bus termination, and isolation are as important as the nominal 1 Mbps data rate. This page consolidates the supplied source information and clearly marks technical values that were not present in the verified excerpts.
MCP2515-E/P - 1Mbps SPI CAN Controller | Microchip
The Microchip Technology MCP2515-E/P is a stand-alone Controller Area Network controller with a Serial Peripheral Interface, operating at up to 1 Mb/s and supporting standard and extended data frames plus remote frames. It is supplied in an 18-pin DIP package and operates from a 5 V supply over -40°C to +125°C. A CAN controller is a semiconductor interface device that moves frames between a host controller and a CAN bus. In the hierarchy, the MCP2515-E/P is a CAN interface controller, a bus controller, an interface IC, and a semiconductor. Unlike a CAN transceiver, it does not directly connect to the bus differential drivers and receivers; an external transceiver is required. Its SPI host interface gives a microcontroller access to CAN transmission, reception, filtering, masks, buffers, status, and interrupt functions. Key verified features include CAN 2.0B operation, 1 Mb/s communication, support for standard and extended data and remote frames, and two receive buffers with masks and filters. The 5 V supply and -40°C to +125°C ambient range suit industrial equipment and temperature-tolerant embedded systems. The SPI host connection also simplifies integration with conventional microcontrollers that lack an integrated CAN controller. Technically, the device separates CAN protocol processing from physical-layer signaling. The host writes and reads controller registers over SPI, while the CAN module manages frame handling and bus communication through CAN_TX and CAN_RX connections to an external transceiver. Firmware must correctly configure bit timing, acceptance masks, filters, interrupt handling, transmit priorities, and error behavior before operation. Typical uses include industrial CAN gateways, vehicle accessory modules, building-control equipment, embedded instrumentation, robotics controllers, and retrofit communication for legacy equipment. The DIP package favors through-hole prototypes and serviceable assemblies, although production designs may prefer a smaller surface-mount package after a deliberate footprint change. Designers should pair the controller with a compatible 5 V CAN transceiver, validate termination at both ends of the bus, and keep SPI and CAN routing away from noisy power stages. Pin multiplexing and alternate package options should be checked against the selected family member rather than inferred from the base device name. This page combines verified manufacturer and distributor information, practical integration guidance, purchasing data, and an explicit review of drop-in replacement evidence. It distinguishes verified facts from missing package, pricing, lifecycle, and pin-level data so engineers can make a defensible sourcing decision.
MCP2515-E/SO - CAN 2.0B SPI Controller, 18-SOIC, 125C | Microchip
The Microchip Technology MCP2515-E/SO is a stand-alone Controller Area Network (CAN) controller that implements the CAN 2.0B specification and connects to a host microcontroller through a Serial Peripheral Interface (SPI) link. It is a 18-pin SOIC (SO) surface-mount device rated for an extended temperature range of -40 °C to +125 °C, and it handles both standard and extended data frames as well as remote frames. A CAN controller is a protocol-processing silicon block that sits between a host MCU and the physical CAN bus. The hierarchy runs from CAN controller, to CAN interface IC, to network interface IC, to general-purpose semiconductor. Unlike a CAN transceiver, which converts logic levels into differential bus voltages, the MCP2515-E/SO works purely at the frame level: it filters, prioritizes, arbitrates, and assembles CAN frames, while an external transceiver such as the MCP2551 or TJA1050 provides the physical layer. Key features of the MCP2515-E/SO include full CAN 2.0B compliance, an SPI host interface, acceptance filtering with two acceptance masks and six acceptance filters, dual acceptance filters, programmable bit timing, a transmitted-data buffer, and dedicated interrupt output. The device is pin and function compatible with the first-generation MCP2510 while adding faster throughput, byte filtering, and support for time-triggered protocols. Frame data payloads of 0 to 8 bytes are supported. Internally the controller separates the CAN receive path from the transmit path with dedicated buffers, and it implements a state machine that handles arbitration loss, error frames, and automatic retransmission. Because the MCP2515 is a host-driven device, the host MCU must service the interrupt line and drive the SPI transaction; this makes the part attractive in cost-sensitive designs where a high-speed MCU already exists on the board. Typical uses include industrial CANopen and DeviceNet gateways, automotive body-comfort modules, elevator and building-automation controllers, EV charging station telemetry, test and measurement instrumentation, and hobbyist or maker platforms built on the widely available MCP2515 CAN module. The extended -40 °C to +125 °C grade makes it suitable for equipment installed near engines or in outdoor enclosures. Design guidance centers on three points. First, decouple VDD and VREF close to the device with the values stated in the Microchip data sheet, because VREF noise maps directly into the received-bit threshold of the bus. Second, match the crystal or clock source to the bit-timing configuration; a mismatch shows up as error frames that are hard to diagnose. Third, provide a pull-up on the standby and reset pins so the controller stays in a defined state during power-up sequencing. This page consolidates distributor pricing, verified package and temperature data, drop-in alternatives, comparison data, and practical integration notes that are not consolidated in any single manufacturer document, giving engineering teams a single reference for sourcing and design decisions.
MCP2515-E/SOVAO - CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515-E/SOVAO is a stand-alone Controller Area Network controller implementing CAN specification version 2.0B, with an 18-pin SOIC package and a serial peripheral interface for host connectivity. It supports standard and extended data frames, remote frames, upgraded throughput, data-byte filtering, and time-triggered protocols. The automotive-oriented ordering suffix identifies the supplied temperature-grade variant, while the -E designation denotes the manufacturer’s supported device grade. A CAN controller is a protocol-specific semiconductor that manages frame transmission, reception, filtering, error handling, and bus status independently of the host processor. The MCP2515 family sits between a microcontroller or host and a separate CAN transceiver, converting serial SPI commands into CAN frames and returning received frames and status events through SPI. This division keeps CAN timing and protocol processing separate from the application processor. Key supported features include CAN 2.0B operation, standard and extended data-frame handling, remote-frame transmission, receive filtering, data-byte filtering, acceptance masks, status interrupts, and time-triggered protocol support. According to the manufacturer MCP2515 Family Data Sheet, the controller is designed for high-throughput embedded CAN communication and is pin and function compatible with the MCP2510 while adding upgraded features. Exact electrical limits, temperature ratings, clock values, and timing parameters must be taken from the manufacturer datasheet rather than inferred from distributor snippets. Typical uses include automotive body electronics, industrial automation, robotics, building-control networks, embedded gateways, diagnostic equipment, and CAN-based sensor networks. The host processor communicates through SPI while an external transceiver connects the controller to the CAN bus. Designers should account for logic levels, transceiver selection, bus termination, grounding, interrupt handling, and the difference between a controller-only device and a combined controller-transceiver solution. The MCP2515-E/SOVAO is appropriate when an existing board already uses the 18-pin SOIC footprint and its software expects the MCP2515 register and interrupt behavior. Before substitution, verify the complete pinout, electrical characteristics, package drawing, lifecycle status, and automotive-grade requirements against the manufacturer datasheet. This product data page combines the verified source description, package information, application context, and engineering caveats that are not apparent from an MPN alone.
MCP2515-E/ST - 1 Mbps CAN 2.0B Controller | Microchip Technology
The Microchip Technology MCP2515-E/ST is a stand-alone Controller Area Network controller implementing CAN specification version 2.0B with an SPI host interface. It supports standard data frames, extended data frames, and remote frames at speeds up to 1 Mbps, operates from a 3.3 V or 5 V supply, and is packaged in a 20-pin TSSOP. A CAN controller is a serial communications device that places formatted messages onto a Controller Area Network bus. The MCP2515 handles frame encoding, arbitration, error detection, acknowledgment, and retry while a separate CAN transceiver converts the controller's logic-level TXD and RXD signals into the physical CANH and CANL bus lines. This separation allows the controller to work with different transceivers and bus topologies. Key features include CAN 2.0B protocol support, a maximum bit rate of 1 Mbps, and an SPI interface suitable for connection to microcontrollers, industrial controllers, and embedded systems. The device can receive and transmit standard and extended identifiers as well as remote frames. Its 3.3 V or 5 V operation supports both modern low-voltage digital systems and established 5 V CAN equipment. The MCP2515-E/ST is the extended-temperature version of the MCP2515 family, supplied in a 20-pin TSSOP for surface-mount assembly. Distributor listings identify the MCP2515T-E/ST as the corresponding tape-and-reel ordering option, while the MCP2515-E/ST suffix denotes the tube-packaged form. The exact electrical limits, pin functions, timing values, and environmental ratings should be confirmed against the Microchip MCP2515 Family Data Sheet. Typical applications include industrial automation, vehicle and equipment networking, elevator controls, robotics, building automation, and embedded CAN gateways. Because the MCP2515 is a controller rather than a transceiver, a compatible CAN transceiver such as the TJA1050 or a 3.3 V transceiver must be added to interface with a physical CAN bus. When laying out the circuit, place the controller and transceiver close enough to minimize the TXD and RXD interconnect, provide a stable clock for the SPI host interface, and route the CANH and CANL bus traces as a differential pair. Verify termination, common-mode voltage, and ground strategy for the selected transceiver rather than treating the MCP2515 as a complete bus node. This page consolidates manufacturer protocol information, distributor package and pricing references, same-footprint family alternatives, and practical selection guidance that is not consolidated on ordinary distributor listings.
MCP2515-E/STVAO - CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515-E/STVAO is a stand-alone CAN controller implementing CAN version 2.0B, with a maximum 1 Mbit/s data rate and a 20-pin TSSOP package. It is designed for embedded systems that connect a host controller through SPI while requiring a separate CAN transceiver. A CAN controller is an interface IC that manages CAN frame transmission and reception, while a CAN transceiver converts the controller’s logic signals into differential bus signals. The MCP2515 sits between a microcontroller and an external transceiver, making it useful when the system already has a suitable transceiver or requires modular bus-isolated hardware. The MCP2515 family supports standard and extended data frames, remote frames, data-byte filtering, acceptance filtering, status and interrupt control, and time-triggered protocol support. The verified source describes it as pin and function compatible with the MCP2510 while providing upgraded features such as faster throughput, data-byte filtering, and time-triggered protocols. The MCP2515-E/STVAO is identified in the supplied data as a two-wire, stand-alone CAN controller. Typical implementations place the MCP2515 beside a microcontroller and connect its SPI port to the host. CANH and CANL are not provided by this controller; those signals belong to the external CAN transceiver. PCB layout should separate digital SPI routing from the analog and bus-side transceiver area, provide a stable clock, and follow the external transceiver’s termination and grounding guidance. The -E/STVAO ordering information and the comparison data identify the device as a TSSOP-20 industrial CAN controller. The supplied snippets do not provide a complete electrical characteristic table, absolute maximum ratings, pricing, or a complete verified pin map. Those fields are therefore marked for data needed rather than inferred from unverified assumptions. This page consolidates the verified product identity, official datasheet, source links, application context, and design cautions. It does not claim that the controller includes a physical-layer transceiver, and it does not invent electrical values absent from the supplied evidence.
MCP2515-I/ML - 1 Mbps SPI CAN Controller | Microchip
Microchip Technology MCP2515-I/ML is a stand-alone Controller Area Network controller with a 1 Mbps maximum data rate, CAN 2.0B protocol support, and a serial peripheral interface to a host microcontroller. It is supplied in a 20-QFN 4 x 4 mm package and is designed for both industrial and automotive-qualified designs that require a dedicated CAN protocol controller. A CAN controller is a network-interface IC that manages frames on a Controller Area Network bus. Within the product hierarchy, the MCP2515 is a CAN protocol controller, not a physical-layer transceiver. It connects to a host processor through SPI and communicates with CANH and CANL bus pins through a separate transceiver, allowing the controller to be reused across many embedded systems. Key features include support for standard and extended data frames, remote frames, receive filters, programmable acceptance masks, data-byte filtering, and upgraded throughput. The device also provides sleep and standby operating states, helping reduce current consumption when the embedded system does not require continuous CAN reception. Its 3.3 V and 5 V operating support accommodates both industrial logic levels and conventional 5 V CAN systems. The controller architecture separates CAN frame processing from the physical bus. A host microcontroller reads status registers, controls transmission buffers, receives interrupt requests, and exchanges CAN data through SPI. This division makes the MCP2515 suitable for microcontrollers and application processors that do not include an integrated CAN controller, while allowing the physical transceiver to be selected according to bus topology, isolation, speed, and regulatory requirements. Typical applications include automotive body and comfort modules, industrial automation equipment, robotics, building controls, medical instrumentation, and embedded communications gateways. In each case, the SPI host interface simplifies integration while the CAN controller provides protocol handling, acceptance filtering, interrupt-driven reception, and support for both classic CAN data-frame formats. Designers should verify the exact pin functions and exposed-pad connection against the manufacturer datasheet before layout, and should account for the external CAN transceiver and termination network. The SPI interface and CAN bus grounds also require careful signal-integrity planning, particularly when long traces, connectors, or electrically noisy subsystems are present on the assembled PCB. This page consolidates the verified Microchip family documentation, distributor availability information, drop-in replacement research, and practical selection guidance. It also distinguishes protocol-controller replacements from transceiver-integration devices so that engineers can assess footprint, firmware, and system-level compatibility before changing a qualified BOM.
MCP2515-I/P - CAN 2.0B SPI Standalone CAN Controller | Microchip
The Microchip Technology MCP2515-I/P is a stand-alone Controller Area Network (CAN) controller that implements the CAN 2.0B specification, providing full CAN bus connectivity to microcontrollers that lack an integrated CAN peripheral. Housed in a 18-pin PDIP (P) through-hole package, the part features an industrial-grade operating range of -40C to +85C, an SPI host interface up to 10 MHz, and includes integrated acceptance masks (2) and filters (6) for hardware message filtering. What is a CAN controller? A CAN controller is a serial communications device implementing the ISO 11898 Controller Area Network protocol used in automotive, industrial automation, and embedded systems. The MCP2515 sits in the hierarchy: CAN controller -> serial communication IC -> interface IC -> integrated circuit. Unlike microcontrollers with built-in CAN, the MCP2515 is a pure controller (no transceiver, no CPU), so it requires an external CAN transceiver such as the MCP2551 or TJA1050 to physically drive the bus. Key features include full CAN 2.0B compliance with standard (11-bit) and extended (29-bit) identifier support, six acceptance filters and two acceptance masks to offload host MCU processing, a maskable interrupt output, and a programmable clock output derived from the on-chip oscillator. The device integrates two 8-bit timing registers and one 29-bit identifier mask/filter for robust message acceptance. Architecturally, the MCP2515 implements a three-buffer transmit engine with prioritisation and rollback, dual 11-bit/29-bit acceptance filters, and a 40-byte FIFO for received messages. The 18-pin PDIP package uses through-hole mounting suited for industrial modules, retrofit projects, development boards and educational platforms; an SOIC variant (MCP2515-I/SO) and tape-and-reel SO versions exist for SMD designs. Typical applications include Arduino CAN bus shields, Raspberry Pi HAT-based CAN modules, industrial sensor gateways, automotive diagnostics, building automation backbones, and battery management CAN reporting. The MIPI/SPI interface simplifies attachment to virtually any MCU with an SPI master port. When designing with the MCP2515-I/P, ensure the external transceiver, termination resistors (120 ohm each end of bus) and a high-speed SPI clock source are present. The 18-pin PDIP footprint is identical to the legacy MCP2510-I/P, enabling drop-in migration paths across two chip generations. This page synthesizes distributor pricing, cross-brand drop-in alternatives, and PCB-level design notes not collected in the manufacturer datasheet alone.
MCP2515-I/SO - Stand-Alone CAN 2.0B Controller w/ SPI | Microchip
The Microchip Technology MCP2515-I/SO is a stand-alone Controller Area Network (CAN) protocol controller that implements the CAN specification version 2.0B, housed in an 18-pin SOIC (SO) package with -40C to +125C industrial temperature rating. It communicates with a host microcontroller through an industry-standard Serial Peripheral Interface (SPI) at up to 10 MHz clock, and supports CAN bit rates up to 1 Mb/s. A CAN controller is a dedicated hardware block that implements the ISO 11898-1 data-link layer, offloading bit-stuffing, CRC generation, arbitration, error handling, and acceptance filtering from the host MCU. As part of the controller IC hierarchy, the MCP2515 sits below the CAN transceiver (e.g., MCP2551, TJA1050) which handles the physical layer, and below the full CAN protocol stack running on microcontrollers. It is a member of the interface IC family, bridging a digital MCU to a 2-wire differential CAN bus. Key features of the MCP2515 include two acceptance masks and six acceptance filters (29-bit extended and standard 11-bit IDs), two receive buffers with prioritization, three transmit buffers with prioritization and abort capability, hardware support for time-triggered protocols (CANopen, DeviceNet), and byte-level data filtering. The part offers both 5V and 3.3V operation with low standby current, supports one-shot mode for retransmission control, and provides an interrupt output for event-driven MCU wake-up. The MCP2515 is pin- and function-compatible with the older MCP2510, adding faster SPI throughput (10 MHz vs 5 MHz), databyte filtering, and time-triggered protocol support. The internal architecture pairs a CAN protocol engine with two acceptance masks, a 6-filter hardware acceptance filter array, an SPI engine with command-based register access, and flexible interrupt logic that signals MCU-side events via the INT pin. Typical applications include automotive body and chassis networking, industrial CANopen and DeviceNet nodes, HVAC and elevator controllers, building automation, and Arduino/Raspberry Pi CAN shields. When designing with the MCP2515, pair it with a CAN transceiver (e.g., MCP2551, TJA1050) to convert CMOS TXCAN/RXCAN to the differential bus; without that companion chip the controller cannot drive a real CAN bus. One important design consideration is the SPI clock and MCU timing budget - while the controller supports up to 10 MHz SPI, the actual achievable bus throughput depends on host MCU SPI peripheral speed, interrupt latency, and buffer-drain handling. Designers should also handle bus-off recovery by software, since the MCP2515 does not auto-recover from bus-off without host intervention. This page synthesizes distributor pricing, drop-in same-family and cross-brand replacements, and practical design guidance not bundled in the manufacturer datasheet itself.
MCP2515-I/SOVAO - CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515-I/SOVAO is a stand-alone Controller Area Network controller implementing CAN specification version 2.0B, supporting standard and extended data frames, remote frames, and an SPI interface in an 18-lead SOIC package. The verified product description identifies it as a two-wire CAN interface controller, while the family datasheet provides the authoritative electrical and functional details. A CAN controller is an interface IC that organizes CAN frames, manages transmission and reception through configurable buffers, and connects a host processor over a serial peripheral interface. Within the hierarchy of interface integrated circuits, the MCP2515 family belongs to the CAN controller category and bridges an SPI-capable microcontroller or processor with a CAN physical network. It performs protocol handling but still requires an external CAN transceiver for the physical bus connection. The MCP2515 supports CAN 2.0B operation, including standard and extended identifiers. The family documentation identifies upgraded features such as faster throughput, byte filtering, and time-triggered protocol support. Its SPI host interface allows software to configure bit timing, masks, filters, interrupts, and frame buffers, making the device suitable for embedded control, instrumentation, industrial automation, and network management systems. This ordering code uses the automotive temperature-grade designation indicated by the -I suffix in the verified comparison data, but the supplied snippets do not provide the complete electrical limits. The 18-lead package and SO function suffix are consistent with the SOIC-18 package family, although the exact package suffix details and pin names require confirmation from the manufacturer datasheet. The MCP2515 is controller-only; a separate transceiver such as an MCP2551-family device is normally required to connect CANH and CANL to the physical bus. Typical implementations place the controller beside a microcontroller and a CAN transceiver. The host processor communicates through SPI, while the controller manages CAN acceptance, transmission, filtering, status, and interrupts. For new designs, compare the MCP2515 with the MCP2517FD family when identifier filtering or CAN FD capability is required; the MCP2517FD is not assumed to be a drop-in replacement because its protocol features and electrical requirements differ. Design attention belongs on SPI signal integrity, CAN transceiver placement, filtering, interrupt handling, and correct oscillator and reset implementation. Follow the MCP2515 Family Data Sheet for pin connections, timing, electrical characteristics, and reference circuit details rather than relying on distributor summaries. This product is suitable for legacy CAN 2.0B systems, but a controller-only device is not a standalone CAN bus transceiver. This page consolidates the verified manufacturer identity, family functionality, distributor listings, package information, application guidance, and replacement constraints. It distinguishes documented CAN 2.0B controller capabilities from unverified electrical parameters and avoids treating functionally related transceiver or newer CAN FD devices as drop-in alternatives.
MCP2515-I/ST - Stand-Alone CAN Controller with SPI, TSSOP-20 | Microchip
The Microchip Technology MCP2515-I/ST is a second-generation stand-alone Controller Area Network (CAN) controller implementing the CAN 2.0B specification, in a 20-pin TSSOP package. It supports standard and extended data frames, as well as remote frames, with bit rates up to 1 Mb/s via a high-speed SPI interface (up to 10 MHz). A CAN controller is a protocol engine that handles the framing, bit stuffing, error handling, and acknowledgement of CAN messages on the bus, offloading this real-time burden from the host MCU. The MCP2515 family sits between a microcontroller and a CAN transceiver (such as the MCP2551 or MCP2562), making it ideal for adding a CAN interface to MCUs that lack a built-in CAN peripheral. Within the network taxonomy, it lives under CAN protocol controllers → serial protocol ICs → interface ICs → wired communication semiconductors. Key features include two acceptance masks and six acceptance filters for selective message acceptance, two buffer sizes with prioritized message storage, a loopback mode for self-test, and hardware support for time-triggered protocols. According to the manufacturer datasheet, it operates from a single 2.7V–5.5V supply, consumes only 10 mA active and 1 µA standby typical, and integrates CLKOUT/FCLK outputs plus maskable interrupt and wake-up pins. Compared to its predecessor MCP2510, the MCP2515 adds faster SPI throughput and data-byte filtering. Typical applications cover automotive body and infotainment networks, industrial automation, medical instrumentation requiring CAN connectivity, IoT sensor gateways, and embedded hobbyist platforms such as Arduino and Raspberry Pi CAN HATs. Designers benefit from the well-documented Microchip libraries that simplify bring-up. When designing with this IC, ensure the SPI lines (SCK, MOSI, MISO, CS) are routed with characteristic impedance in mind and place decoupling capacitors within 1 cm of the VDD pin to meet CAN bus EMC requirements.
MCP2515-I/STVAO - SPI CAN 2.0B Controller | Microchip
The Microchip Technology MCP2515-I/STVAO is a stand-alone Controller Area Network controller implementing CAN 2.0B, supporting standard, extended, and remote data frames through a serial peripheral interface. It operates from 2.7 V to 5.5 V and is supplied in a 20-pin TSSOP package. The controller provides up to 1 Mbit/s CAN performance and includes acceptance filters, configurable masks, dual acceptance masks, and a 2 KB message buffer. A stand-alone CAN controller connects a host processor to a CAN physical bus through a separate CAN transceiver. CAN is a deterministic, arbitration-based communication network used when message priority, robust framing, and reliable multi-node operation matter. In the hierarchy, the MCP2515 belongs to the CAN controller class, within interface controllers and broader semiconductor communication devices. Key features include faster throughput than the earlier MCP2510, programmable data-byte filtering, acceptance-filter optimization, dual full masks, interrupt sources for receive, transmit, error, and wake-up activity, and support for time-triggered protocols. According to the manufacturer product page, the device is also pin and function compatible with the MCP2510. Standard and extended identifiers allow a design to support both conventional and extended CAN message formats. The MCP2515 separates protocol handling from bus-line voltage conversion. Its SPI port communicates with a host MCU or processor, while CANRX and CANTX connect to an external transceiver. This makes the device appropriate for industrial automation, robotics, vehicle instrumentation, medical equipment, embedded control, and test systems where the system already has a transceiver and host controller. Typical implementation uses an MCU connected by SPI to the MCP2515, a 3.3 V or 5 V CAN transceiver, common reference ground, and a correctly terminated CAN bus. Decoupling capacitors should be placed close to the VDD pins, and the SPI and interrupt traces should be kept short to reduce timing and signal-integrity risk. This page combines manufacturer specifications, verified distributor findings, package information, application guidance, and replacement-analysis evidence. The supplied data confirms the 20-TSSOP package and 2.7 V to 5.5 V operating range; unspecified electrical limits, register details, lifecycle declarations, pricing, and full pin names are intentionally not invented.
MCP2515T-E/ML - 2.7V CAN 2.0B Controller | Microchip
The Microchip MCP2515T-E/ML is a stand-alone CAN controller with an SPI interface, a 2.7 V to 5.5 V operating supply range, and CAN 2.0B protocol support in a 20-pin QFN (4 x 4 mm) package. It supports standard data frames, extended data frames, and remote frames, giving a host microcontroller flexible access to Controller Area Network communications. A CAN controller is a dedicated communications semiconductor that converts between a host processor and the physical CAN bus. In the hierarchy, the MCP2515 is a CAN interface controller, a protocol-handling IC, and a semiconductor used within embedded control, automotive, industrial, and communications systems. Unlike a controller with an integrated transceiver, it requires an external CAN transceiver for connection to the physical bus. The device includes two acceptance masks and six acceptance filters, allowing the host processor to reject unwanted messages before further processing. Programmable bit timing supports adaptable communication rates, while standard and extended frame support accommodates different identifier formats. The manufacturer datasheet also identifies low-power mode and single-transmission mode as operating features for systems that need controlled power behavior or deterministic message handling. The SPI host interface separates CAN protocol processing from the host CPU, reducing bus traffic compared with a software CAN implementation. The controller manages reception buffers, transmission queues, filtering, status flags, and interrupts, allowing the host to manage accepted frames through interrupt-driven software. Its operating voltage range permits use in 3.3 V and 5 V embedded systems without requiring a separate family of controllers for each supply level. Typical applications include automotive body and comfort modules, industrial motor controllers, building automation equipment, battery-powered sensors, and distributed control systems. The 20-pin QFN package supports compact designs, while the external CAN transceiver can be selected according to bus topology, isolation, speed, and regulatory requirements. Design the SPI interface for the host processor's electrical limits, connect the CAN RX and TX pins to a suitable transceiver, and place termination only at the physical ends of the bus. Confirm oscillator timing, filter configuration, interrupt handling, and logic levels against the manufacturer pin description and application guidance before production release. This page combines protocol capabilities, variant distinctions, package information, pin assignments, sourcing guidance, and practical implementation notes. It also organizes confirmed same-package drop-in options and identifies engineering checks that are important beyond the basic CAN 2.0B feature description.
MCP2515T-E/MLVAO - CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515T-E/MLVAO is a stand-alone CAN 2.0B controller with an SPI interface, a 20-VFQFN exposed-pad package, and operation to 125 deg C. It supports standard and extended data frames, remote frames, data-byte filtering, higher throughput, and time-triggered protocols. These features position it between a CAN protocol controller, communication interface IC, and embedded serial-bus controller. A Controller Area Network controller manages frame generation, filtering, arbitration, status, interrupts, and error handling, while an external CAN transceiver connects the controller's logic-level interface to the physical bus. In this Microchip architecture, the MCP2515 communicates with a host processor through SPI and delegates differential bus signaling to a separate transceiver. The manufacturer datasheet identifies the MCP2515 as a second-generation stand-alone CAN controller that is pin- and function-compatible with the MCP2510. Verified product data further identifies improved throughput, data-byte filtering, support for time-triggered protocols, standard and extended data support, and remote-frame handling. The automotive-qualified ordering code is supplied in the 20-VFQFN exposed-pad package identified by the verified distributor records. Typical deployments include automotive body, comfort, and powertrain networks; industrial automation equipment; building controls; medical equipment; robotics; and other embedded systems that already provide a CAN transceiver. SPI host access simplifies integration with microcontrollers while the dedicated CAN engine handles bus traffic independently. Firmware must nevertheless configure acceptance filters, interrupt sources, bit timing, masks, and transceiver mode correctly. The principal design considerations are logic compatibility, CAN transceiver selection, termination, bit timing, clock configuration, filtering, and exposed-pad thermal management. Because the exact pin names, electrical limits, timing values, and transceiver requirements are not supplied in the retrieved product snippets, those engineering values must be taken directly from the manufacturer datasheet rather than inferred. This product page consolidates verified manufacturer and distributor information, purchase availability signals, family-level alternatives, and application guidance. It distinguishes documented facts from missing technical data so engineers can use the page for initial component selection without treating unsupported electrical values as verified specifications.
MCP2515T-E/SO - 1 Mbps CAN 2.0B Controller | Microchip Technology
The Microchip Technology MCP2515T-E/SO is a stand-alone CAN 2.0B controller supporting data rates up to 1 Mbps, standard and extended data frames, remote frames, and an SPI host interface in an 18-pin SOIC package. It operates from a 5 V supply, supports 3.3 V and 5 V operation in sleep or standby modes, and is rated for temperatures from -40 °C to 125 °C. A CAN controller is a semiconductor that manages CAN frames while a separate CAN transceiver connects the controller to the physical bus. The MCP2515T-E/SO sits between a microcontroller or host processor and that transceiver, providing bit timing, arbitration, error handling, receive buffers, masks, and filters. This separates protocol processing from the analog and electrical functions required by a CAN bus. The controller supports CAN 2.0B standard and extended identifiers, two receive buffers, programmable acceptance masks and filters, and remote transmission requests. It also adds upgraded throughput, data-byte filtering, and support for time-triggered protocols compared with the earlier MCP2510. These features make it useful for industrial equipment, automotive accessories, instrumentation, and embedded control systems. Internally, the device combines a CAN protocol engine with an SPI interface for host register access. The SPI connection allows a host processor to configure bit timing, select filters, initiate transmissions, retrieve received frames, and monitor interrupt status. The controller requires an external clock source, CAN transceiver, bus termination, decoupling, and careful transceiver interface layout to create a working CAN node. Typical applications include industrial automation controllers, vehicle diagnostic interfaces, building-control gateways, robotics equipment, test systems, and embedded CAN protocol bridges. In each case, the MCP2515T-E/SO provides the CAN frame engine while a host MCU handles application logic and a transceiver such as the site-listed TCAN334D, TCAN332DR, or TCAN330DR provides the physical-layer connection. Designers should use short, well-routed SPI traces, provide the required supply and ground decoupling, and verify oscillator and transceiver timing margins across the complete CAN network. The 125 °C maximum operating temperature makes the device suitable for industrial environments, but the exact package pinout and PCB land pattern should be checked against the current manufacturer datasheet before layout release. This product record combines verified manufacturer and distributor information with practical CAN-node design guidance, pricing context, package details, and application-specific engineering considerations that are not consolidated in the original catalog snippets.
MCP2515T-E/SOVAO CAN 2.0B Controller | Microchip Technology
The Microchip Technology MCP2515T-E/SOVAO is a stand-alone Controller Area Network controller implementing CAN specification Version 2.0B, with an SPI host interface and an 18-SOIC package. It supports standard data frames, extended data frames, and remote frames for both transmission and reception. Verified distributor data identifies the device as an automotive-temperature CAN interface IC, while the manufacturer describes the MCP2515 family as a second-generation controller that is pin- and function-compatible with the MCP2510. A CAN controller is a communications integrated circuit that manages frame assembly, filtering, arbitration-related status, interrupts, and host-controller communication on a CAN bus. In system hierarchy, the MCP2515 belongs to CAN interface controllers and then to broader interface ICs. Its stand-alone architecture allows a host microcontroller to manage CAN traffic through SPI rather than embedding a complete CAN peripheral in the host itself. The MCP2515 family adds faster throughput, data-byte filtering, and support for time-triggered protocols relative to the MCP2510. The controller is designed for systems that need independent access to CAN message buffers and status information. This separation can make protocol timing and interrupt handling easier to organize, especially when the host uses a different real-time workload than the CAN network. The MCP2515T-E/SOVAO is supplied in an 18-SOIC gull-wing package. The verified part designation includes the T temperature option and E qualification suffix, but the retrieved source snippets do not provide a complete electrical parameter table for this exact ordering code. Consequently, detailed supply voltage, transceiver-interface voltage, reset behavior, oscillator requirements, absolute maximum ratings, and timing values remain marked for verification rather than inferred from unrelated variants. Typical applications include automotive and industrial CAN networks, embedded control modules, instrumentation gateways, vehicle diagnostics, factory automation equipment, and transport systems. In these systems, a host processor connects through SPI while the MCP2515 exchanges CAN frames with a separate CAN transceiver. This division allows the controller to provide frame handling while the transceiver converts logic-level signals into the physical CAN bus differential signals. Designers should verify the exact MCP2515T-E/SOVAO electrical limits, timing, and qualification claims in the manufacturer datasheet before release. PCB layout should provide a controlled SPI bus, a stable oscillator implementation, proper decoupling, and a clean interface to the CAN transceiver. This page synthesizes the verified manufacturer and distributor data with application guidance while avoiding unsupported electrical claims.
MCP2515T-E/ST - 1 Mbps CAN 2.0B Controller | Microchip Technology
Microchip Technology MCP2515T-E/ST is a stand-alone Controller Area Network controller implementing CAN specification version 2.0B, with a maximum data transmission speed of 1 Mbps and an SPI host interface. The device is supplied in a 20-pin TSSOP package and supports standard data frames, extended data frames, and remote frames. A CAN controller is a communications IC that converts host commands into CAN frames and converts received CAN traffic into data available through a serial interface. Within the broader hierarchy, the MCP2515T-E/ST is a CAN interface controller and therefore belongs to the interface IC, CAN controller, industrial communication, and embedded networking domains. It connects a microcontroller or other host processor to a CAN bus through an external CAN transceiver. The second-generation MCP2515 architecture provides faster throughput, byte-level filtering, and support for time-triggered protocols. According to the Microchip Technology MCP2515 family datasheet, it can both transmit and receive standard, extended, and remote frames. Its SPI interface allows register configuration, interrupt handling, and frame exchange with a host microcontroller while keeping the CAN physical-layer implementation in a separate transceiver. The MCP2515T-E/ST operates from a 3.3 V or 5 V supply in Sleep and Standby modes, and the associated component listing identifies a maximum operating temperature of 125°C. It is intended for both 3.3 V and 5 V embedded systems and supports designs that require reception filters, interrupt-driven bus management, or scheduled time-triggered communication. Typical applications include industrial automation equipment, automotive and transportation modules, building-control systems, robotics, medical instruments, and embedded data-acquisition equipment. It is especially suitable when an existing host controller already uses SPI and the design needs a dedicated CAN protocol engine instead of implementing CAN framing in host software. The principal design consideration is that the MCP2515T-E/ST is a controller, not a CAN transceiver. The PCB therefore needs a suitable 3.3 V or 5 V CAN transceiver, proper bus termination, protection appropriate to the environment, and a carefully routed connection between the controller and transceiver. Firmware must also initialize the bit timing, configure acceptance filters, select clock and interrupt settings, and handle bus-off recovery according to the device register definitions.
MCP2515T-I/ML - 1Mbps SPI CAN Controller | Microchip Technology
The Microchip Technology MCP2515T-I/ML is a stand-alone Controller Area Network controller supporting CAN 2.0B communication at up to 1 Mbps through an SPI interface, and it is housed in a 20-pin QFN package with an exposed pad measuring approximately 4 x 4 mm. The device operates from a 2.7 V to 5.5 V supply and is specified for a -40°C to +85°C industrial temperature range. Its protocol implementation supports standard data frames, extended data frames, and remote frames. A CAN controller is a semiconductor that manages frame creation, arbitration, acknowledgment, error detection, and bus data movement according to the Controller Area Network standard. The MCP2515 belongs to the hierarchy of CAN controller, communication controller, interface IC, and semiconductor. Unlike a CAN physical-layer transceiver, it does not directly connect to the bus's differential CANH and CANL conductors. It instead exchanges commands and status data with a host processor over SPI while a separate transceiver converts the controller's logic signals to the physical bus. The MCP2515 provides two receive buffers, acceptance masks, and acceptance filters for selecting CAN identifiers. These features help the host avoid processing irrelevant traffic. It also includes interrupt signaling, request-to-send control, programmable bit timing, loopback and silent modes, and a standby low-power state. A 1 Mbps bus rate supports demanding industrial and automotive networking, although the final operating rate depends on oscillator accuracy, transceiver characteristics, wiring, termination, and network topology. The controller's SPI host interface provides an effective separation between real-time bus handling and host-side protocol software. The processor can configure bit timing and filters, place messages into transmit buffers, retrieve received frames, and read interrupt status without bit-banging the CAN bus. The exposed thermal pad provides a direct heat-transfer path to the PCB, while the small QFN footprint supports compact controller modules and embedded equipment. Internal timing references and external-clock arrangements must follow the manufacturer's pin and application guidance. Typical uses include industrial automation equipment, vehicle diagnostic interfaces, building-control gateways, embedded motor-control systems, CAN-to-SPI bridges, and communications modules. It is especially appropriate when a microcontroller lacks a native CAN peripheral or when a dedicated controller allows the host processor to share communication tasks. A physical-layer transceiver such as an MCP2551-class device remains necessary in every practical CAN bus implementation. Designers should follow the recommended decoupling, grounding, exposed-pad soldering, and high-speed layout practices in the manufacturer datasheet. Keep the SPI clock and signal routes compact, provide a low-impedance ground return, place input and output capacitors close to their pins, and connect the exposed pad to the ground plane with an adequate thermal-via pattern. Confirm oscillator and bit-timing settings at the intended bus speed because incorrect oscillator configuration or inadequate transceiver propagation delay can prevent reliable arbitration. This product page combines the device's core protocol and package characteristics with practical integration guidance, verified sourcing links, and an honest assessment of available drop-in alternatives. It is intended to help engineers select the controller, plan its PCB implementation, and evaluate replacement options without confusing protocol equivalence with true package-level drop-in compatibility.
MCP2515T-I/SO - 1 Mbps CAN Controller with SPI | Microchip Technology
The Microchip Technology MCP2515T-I/SO is a stand-alone CAN controller with an SPI interface, implementing CAN specification Version 2.0B at up to 1 Mb/s. The device supports standard and extended data frames, remote frames, receive buffers, masks and filters, and is housed in an 18-pin SOIC package. It is designed for systems where a host microcontroller communicates with a CAN bus through a serial peripheral interface rather than integrating a CAN controller directly. A CAN controller, also called a CAN protocol controller, is an interface IC within the broader network interface and communications semiconductor category. It manages CAN frame transmission and reception while a host processor configures registers, reads status information, and exchanges data through SPI. The MCP2515 family is positioned between simple serial transceivers and more integrated CAN solutions because it provides protocol handling without requiring the host MCU to implement the complete CAN frame format. Key features of the MCP2515 include CAN 1 Mb/s operation, support for both standard and extended identifiers, two receive buffers, programmable acceptance masks and filters, and support for time-triggered protocols. The SPI host interface allows a microcontroller to control the controller and retrieve received CAN frames. The verified part information identifies the MCP2515 as a second-generation stand-alone CAN controller that is pin and function compatible with the MCP2510 while adding faster throughput, databyte filtering, and time-triggered protocol support. The MCP2515T-I/SO uses a nominal 5 V supply and is specified over an operating temperature range of -40°C to +125°C. The package is a lead-free 4 mm × 4 mm plastic SOIC, identified in distributor listings as an 18-pin SOIC. The controller handles the CAN protocol layer and its digital host interface; a separate CAN transceiver is required to connect the CANRX and CANTX pins to the physical CAN bus. Typical applications include industrial automation equipment, automotive diagnostic and test systems, embedded control modules, instrumentation, and CAN-based sensor networks. In these systems, the MCP2515T-I/SO is commonly connected to a host MCU over SPI and to a 3.3 V or 5 V CAN transceiver over the CANRX and CANTX signals. The controller's filtering capability helps reduce host processing by accepting only selected identifiers. Designers should verify the exact pin names and electrical limits against the manufacturer datasheet before layout, especially the transceiver interface, crystal or clock requirements, reset behavior, and input filtering. PCB placement should keep SPI traces short, provide a stable ground return, and follow the datasheet recommendations for decoupling and bus signal integrity. This page consolidates the verified manufacturer and distributor information, identifies same-package drop-in candidates where available, and provides practical comparison and design guidance beyond a basic catalog listing. Pricing references are current only as of 2026-10-28.
MCP2515T-I/SOVAO - CAN 2.0B SPI Controller | Microchip
The Microchip Technology MCP2515T-I/SOVAO is a stand-alone CAN 2.0B controller with an SPI interface, industrial temperature grade, and an 18-pin SOIC package. It provides the protocol-processing functions required to transmit and receive standard, extended, and remote CAN frames while leaving the physical bus layer to a separate CAN transceiver. Its 18 pins, 2.0B CAN capability, and serial peripheral interface make it suitable for embedded industrial, automotive-adjacent, robotics, and instrumentation systems that require host-controlled CAN communication. A CAN controller is a specialized communications interface integrated circuit within the broader hierarchy of interface ICs, serial interface controllers, and network semiconductors. CAN, or Controller Area Network, is a deterministic, multi-master bus protocol designed for robust communication among distributed electronic systems. The MCP2515 family implements the protocol engine and mask-and-filter logic, while an external transceiver converts controller logic into the electrical CANH and CANL bus signals. Key family features include support for CAN specification version 2.0B, standard and extended data frames, remote frames, programmable receive filters and masks, byte-oriented SPI communication, and time-triggered protocol support. The manufacturer describes the MCP2515 as pin and function compatible with the MCP2510 while adding faster throughput, data-byte filtering, and support for time-triggered protocols. The SOVAO ordering code identifies the industrial-temperature, 18-pin SOIC configuration used by this article. Technically, the device separates CAN frame handling from the host microcontroller. The SPI interface provides a serial command path for configuration, mask, filter, transmit-buffer, receive-buffer, status, and interrupt operations. This architecture reduces the number of parallel connections required between a host processor and the CAN controller, although firmware must correctly manage buffering, arbitration loss, error states, interrupt sources, and bus timing before the device can participate reliably in a live network. Typical uses include industrial sensor nodes, motor-control equipment, test instruments, robotic controllers, building-automation interfaces, and diagnostic systems. In these applications, a microcontroller or DSP configures the MCP2515, places frames into its transmit buffers, and services interrupts when frames are received or error conditions occur. A separate 3.3 V or 5 V CAN transceiver is still required because the controller does not directly drive the physical bus. A key design consideration is separating the SPI traffic from the CAN bus interface and observing the voltage, timing, and reset requirements stated in the manufacturer datasheet. Board layout, grounding, transceiver selection, bus termination, and firmware acknowledgment handling can be as important as controller selection. The SOIC package is larger than modern leadless alternatives, but it supports straightforward assembly and inspection in prototype and low-to-medium-volume equipment. This product data consolidates verified manufacturer and distributor references, package information, practical CAN design considerations, and pin-compatible ordering variants. It also distinguishes the controller from the external transceiver and explicitly identifies unavailable electrical values so procurement and engineering decisions are not based on unverified assumptions.
MCP2515T-I/ST - 1 Mbps CAN Controller SPI 20-TSSOP | Microchip Technology
The Microchip Technology MCP2515T-I/ST is a stand-alone CAN 2.0B controller with an SPI interface, 1 Mb/s CAN communication capability, and a 20-pin TSSOP package. It supports standard data frames, extended data frames, and remote frames, making it suitable for embedded CAN bus communication designs. A CAN controller is a communications IC that manages the framing, arbitration, acknowledgment, and error handling required by the Controller Area Network standard. In an embedded system, the MCP2515T-I/ST connects a host microcontroller through SPI while a separate CAN transceiver converts the controller's logic-level signals into the physical CAN bus differential signals. This separation allows the controller to operate with digital hosts while the external transceiver handles bus-line protection and signal levels. Key verified features include support for CAN specification version 2.0B, standard and extended data frames, remote frames, two receive buffers, masks and filters, and operation up to 1 Mb/s. The MCP2515T-I/ST operates from a 5 V supply and is specified over an operating temperature range of -40 C to +125 C. Its 20-pin TSSOP package provides a compact surface-mount footprint suitable for industrial control, automotive accessory, embedded instrumentation, and CAN gateway equipment. The controller's SPI host interface simplifies connection to microcontrollers and digital signal processors. The host can configure bit timing, receive filters, interrupt sources, operating modes, and message objects through SPI registers. Interrupts allow the host to respond to received frames, transmit complete events, error conditions, and wake-up activity without continuous polling. Use the MCP2515T-I/ST with a compatible CAN transceiver rather than connecting controller pins directly to a CAN bus. The transceiver must match the intended bus topology, speed, fault tolerance, and isolation requirements. Power-supply decoupling, ground-return planning, and signal-integrity layout are important because the SPI link and the external bus interface operate in different electrical domains. The MCP2515T-I/ST is suitable for applications requiring a dedicated CAN protocol engine while the host processor has limited CAN peripherals. It is also useful in legacy systems that already use the MCP2515 ecosystem, provided that the original TSSOP footprint, voltage, timing, and interrupt behavior remain unchanged. This page combines verified manufacturer and distributor information with practical application guidance, procurement notes, and same-package replacement information.
MCP2517FD-H/JHA - CAN FD Controller 8Mbps SPI 14-VDFN | Microchip
The Microchip Technology MCP2517FD-H/JHA is a stand-alone external CAN FD controller with an SPI interface, supporting up to 8 Mbps CAN FD data rate in a compact 14-pin VDFN (4.5x3 mm) package with an exposed thermal pad. It operates across -40C to +150C industrial temperature range and includes 2 KB of message RAM with configurable FIFO buffers. The device is functionally safety-capable to ISO 26262 up to ASIL B. A CAN FD Controller is a peripheral IC that implements the ISO 11898-1 CAN 2.0B and CAN FD (Flexible Data-rate) physical layer signaling and frame handling independently of the host microcontroller. It sits between an MCU's SPI bus and an external CAN transceiver, allowing designers to add a CAN FD channel to any microcontroller that already has an SPI master, including legacy MCUs and low-cost MCUs without built-in CAN FD peripherals. CAN FD extends classic CAN by increasing payload from 8 bytes to 64 bytes and allowing a switched, higher data-bit-rate phase after arbitration. Key features include 8 Mbps maximum CAN FD bit rate, up to 40 MHz SPI clock, configurable GPIO pins, integrated time-stamping, hardware filtering of acceptance frames, low-power standby mode, 5V-tolerant I/O, and 3.3V or 5V supply operation. Two interrupt outputs simplify real-time interrupt-driven designs and dual-MCU bus arbitration. The exposed pad on the VDFN package provides a low thermal resistance path for high-temperature environments. Architecturally, the MCP2517FD pairs a CAN protocol engine with a 2 KB message RAM that can be partitioned between transmit and receive FIFOs, with up to 32 acceptance filters. SPI transactions configure transmit/receive queues, retrieve error counters, and access the 32-bit time-stamp counter. Status reporting, bus-error counting, and ISO 26262 functional-safety diagnostics are integrated into the interrupt and register architecture. Typical applications include automotive body and chassis ECUs that require an extra CAN FD channel beyond the MCU's built-in peripherals, industrial PLCs and sensor nodes, agricultural and off-highway equipment, EV battery management, and any retrofit design adding CAN FD to an MCU without CAN FD hardware. Designers pair the MCP2517FD-H/JHA with a high-speed CAN FD transceiver such as the ATA6563 or MCP2562FD. Designers should pair the MCP2517FD-H/JHA with a 3.3V LDO and place bypass capacitors as close as possible to VDD. The exposed pad must be soldered to a sufficient copper pour for thermal relief up to 150C ambient. This page synthesizes pricing from DigiKey, Mouser, and LCSC; pin-compatible drop-in alternatives; parametric comparisons; and practical design notes that go beyond the datasheet summary.
MCP2517FD-H/SL - 8 Mbps CAN FD SPI Controller | Microchip
The Microchip Technology MCP2517FD-H/SL is an external CAN FD controller with an SPI interface, CAN 2.0 compatibility, data rates up to 8 Mbps, and a 14-pin SOIC package. It adds a CAN FD channel to a microcontroller that already provides SPI, avoiding the need for a processor with an integrated CAN controller. The verified distributor listing identifies the device as a CANbus controller with a CAN 2.0 SPI interface and 14-SOIC package. A CAN FD controller is a protocol-specific semiconductor that organizes arbitration frames, data frames, bit timing, error handling, interrupts, and transmit buffers. It operates above the physical-layer transceiver in the CAN node hierarchy: microcontroller, MCP2517FD controller, CAN transceiver, and bus. This controller requires an external transceiver such as the ATA6563 used on Microchip's MCP2517FD Click board; CAN RXD and CAN TXD are controller-side signals, not direct bus connections. Verified features include a 2.7 V to 5.5 V supply range, automatic retransmission control, monitor mode, and low-power mode. Automatic retransmission supports recovery from failed transmissions, while monitor mode permits observation without normal participation. Low-power mode can reduce activity when the network is idle, although the complete node power budget also depends on the MCU, SPI activity, clock source, and external transceiver. The SPI host interface makes the controller suitable for industrial automation, automotive electronics, transportation systems, medical equipment, robotics, and embedded gateways. The CAN FD architecture supports migration from classic CAN while retaining efficient handling of higher-bandwidth payloads. Firmware must initialize bit timing, configure GPIO and interrupt behavior, select arbitration versus data-phase bit rates, and manage the controller's message objects. PCB placement requires short SPI traces, a clean ground reference, careful decoupling, and separation from high-energy transceiver and bus routing. The controller and transceiver should share a compatible ground reference, while CANH and CANL routing should remain tightly coupled. Power and signal integrity depend on component placement, loop area, supply impedance, and the external transceiver implementation. This page combines verified manufacturer and distributor information, procurement data, application guidance, and replacement analysis. Because the supplied sources do not expose complete electrical tables, timing limits, pin functions, or a qualified drop-in equivalent list, unsupported details are explicitly marked rather than inferred.