Serial Communication Peripheral (e.g., CAN Controller): Component Specs, Materials & Applications

Component Specifications

Definition

A specialized hardware module integrated into microcontrollers that implements the Controller Area Network (CAN) protocol, providing robust serial communication for real-time distributed control in industrial environments. It handles message framing, arbitration, error detection, and data transmission at speeds up to 1 Mbps.

Working Principle

Operates on differential signaling using CAN_H and CAN_L lines with dominant/recessive bits for collision resolution through non-destructive bitwise arbitration. Messages are transmitted as frames with identifier, control, data, and CRC fields, using CSMA/CR (Carrier Sense Multiple Access with Collision Resolution) for bus access.

Materials

Silicon semiconductor (CMOS/BiCMOS), copper bonding wires, ceramic/plastic packaging with gold-plated pins. Dielectric materials include SiO2 for insulation and polyimide for passivation.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bus Pins	CAN_H, CAN_L
Data Rate	10 kbps to 1 Mbps
Voltage Range	3.3V or 5V
Error Detection	CRC-15, bit stuffing
Message Buffers	8-32
ISO 11898 Compliance	Yes
Operating Temperature	-40°C to +125°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 11898, SAE J1939, ISO 15765, DIN 72551

Parent Products

This component is used in the following industrial products

Microcontroller/MCU

A compact integrated circuit designed to govern specific operations within the Cell Monitoring Unit (CMU), executing programmed instructions to monitor and manage battery cell parameters.

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Engineering Analysis

Risks & Mitigation

Electromagnetic interference disrupting signals
Improper termination causing signal reflections
Voltage spikes damaging transceivers
Software bugs in message handling

FMEA Triads

Trigger: Poor PCB layout or shielding
Failure: Communication errors or bus lock-up
Mitigation: Follow ISO 11898 layout guidelines, use twisted-pair cables with proper grounding

Trigger: Missing termination resistors
Failure: Signal integrity degradation
Mitigation: Install 120Ω resistors at both bus ends

Trigger: Overvoltage on bus lines
Failure: Transceiver damage
Mitigation: Implement TVS diodes and current limiting

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1.5% bit timing accuracy, ±2V common-mode voltage range

Test Method

Oscilloscope analysis for eye diagrams, protocol analyzers for frame validation, EMC testing per ISO 11452

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Serial Communication Peripheral (e.g., CAN Controller)

Manufacturer profiles associated with Serial Communication Peripheral (e.g., CAN Controller).

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Frequently Asked Questions

What is the maximum cable length for CAN communication?

Up to 40 meters at 1 Mbps, extending to 1000 meters at lower speeds like 50 kbps, depending on cable quality and termination.

How does CAN handle message collisions?

Through non-destructive arbitration: lower identifier values win bus access without data loss, ensuring deterministic priority-based communication.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Serial Communication Peripheral (e.g., CAN Controller)