INDUSTRY COMPONENT

MAC Address Register

MAC Address Register is a digital storage component within MAC Controllers that permanently stores unique Media Access Control addresses for network identification in industrial automation systems.

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Component Specifications

Definition
The MAC Address Register is a non-volatile memory component integrated into Media Access Control (MAC) Controllers, designed to store the unique 48-bit or 64-bit hardware address assigned during manufacturing. This register maintains the device's network identity across power cycles and system resets, enabling reliable communication in industrial Ethernet networks. It interfaces with the controller's address recognition logic to filter incoming frames and validate outgoing transmissions according to IEEE 802 standards.
Working Principle
The register operates through permanent storage technology (typically OTP, EEPROM, or flash memory) that retains the MAC address without power. During system initialization, the MAC controller reads this address and loads it into working registers for frame processing. The stored value is used for source address insertion in outgoing frames and destination address comparison for incoming frames, ensuring proper network layer identification in industrial communication protocols.
Materials
Silicon substrate with CMOS technology, embedded non-volatile memory cells (floating-gate transistors), copper/aluminum interconnects, ceramic or plastic packaging (QFN, BGA, or SOP formats), gold bonding wires, and lead-free solder balls.
Technical Parameters
  • Package QFN-16, BGA-24, or SOP-8
  • Interface SPI, I2C, or parallel bus
  • Storage_Type OTP/EEPROM/Flash
  • Write_Cycles 1 (OTP) to 100,000+ (EEPROM/Flash)
  • Address_Length 48-bit (IEEE 802) or 64-bit (EUI-64)
  • Retention_Time >10 years
  • Supply_Voltage 1.8V to 3.3V
  • Operating_Temperature -40°C to +85°C (industrial grade)
Standards
ISO/IEC 8802-3, IEEE 802.3, IEC 61131, IEC 62443

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for MAC Address Register.

MAC address register industrial Ethernet component network identification hardware MAC controller memory automation communication IEEE 802.3 compliance MAC Address Register in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

MAC Controller

A hardware component within a Network Interface Controller (NIC) that manages Media Access Control (MAC) layer operations.

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Engineering Analysis

Risks & Mitigation
  • Address corruption due to electromagnetic interference
  • Physical damage from industrial environment conditions
  • Unauthorized address cloning in security-critical applications
  • Single point of failure in network communication chain
FMEA Triads
Trigger: Memory cell degradation from excessive write cycles or voltage spikes
Failure: Bit errors in stored MAC address leading to network identification failures
Mitigation: Implement error correction codes (ECC), voltage regulation circuits, and write-cycle monitoring
Trigger: Electrostatic discharge (ESD) during handling or operation
Failure: Permanent damage to memory cells or interface circuits
Mitigation: Incorporate ESD protection diodes, proper grounding, and conformal coating
Trigger: Temperature extremes beyond specified operating range
Failure: Data retention failure or read/write malfunctions
Mitigation: Use industrial-grade components with extended temperature ratings and thermal management

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Address bit error rate < 10^-12, voltage variation ±5%, temperature drift ±0.1% per °C
Test Method
IEEE 1149.1 boundary scan for connectivity, memory read/write verification at temperature extremes, ESD testing per IEC 61000-4-2, vibration testing per IEC 60068-2-6

Buyer Feedback

★★★★☆ 4.5 / 5.0 (19 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this MAC Address Register meets all ISO standards."

"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The MAC Address Register arrived with full certification."

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Serial Interface
Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.

Frequently Asked Questions

What happens if the MAC Address Register fails?

Failure causes network communication disruption as the controller cannot identify itself or validate addresses, requiring component replacement or MAC address reprogramming if supported.

Can MAC addresses be changed in industrial registers?

Most industrial registers use One-Time Programmable (OTP) memory for security, making addresses permanent. Some EEPROM-based versions allow limited reprogramming under controlled conditions.

How does this component differ from consumer versions?

Industrial versions feature extended temperature ranges, higher reliability standards, vibration resistance, and compliance with industrial safety and security protocols like IEC 62443.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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