Transmit FIFO Buffer: Data Width 32-128 bits

Component Specifications

Definition

A Transmit FIFO Buffer is a specialized memory component within a Media Access Control (MAC) controller that temporarily stores outgoing data packets in a sequential queue, ensuring orderly transmission over network interfaces by managing data flow between the processor and physical layer devices.

Working Principle

Operates on the First-In-First-Out principle where data packets enter at the write pointer and exit at the read pointer, maintaining transmission order while providing flow control and preventing data loss during high-speed communication.

Materials

Semiconductor silicon with CMOS technology, typically fabricated using 28nm-65nm process nodes with copper interconnects and low-k dielectric materials.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Data Width	32-128 bits
Buffer Depth	64-512 entries
Interface Type	AMBA AXI/AHB or proprietary bus
Clock Frequency	100-500 MHz
Operating Voltage	1.0-1.8V
Power Consumption	10-50 mW

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/IEC 8802-3, IEEE 802.3, JESD22

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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MAC (Media Access Control) Controller

A hardware component within a Network Interface Controller (NIC) that manages data frame transmission and reception over a network medium according to the MAC protocol.

View Product Details

Engineering Analysis

Risks & Mitigation

Buffer overflow causing data loss
Clock domain synchronization failures
Electrostatic discharge damage
Thermal-induced performance degradation

FMEA Triads

Trigger: Clock signal instability
Failure: Data corruption during read/write operations
Mitigation: Implement phase-locked loops and clock domain crossing synchronizers

Trigger: Power supply voltage drop
Failure: Buffer memory cell data retention failure
Mitigation: Use voltage regulators and implement power gating with retention flip-flops

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% voltage variation, ±100ppm clock jitter, operating temperature -40°C to +85°C

Test Method

Boundary scan testing (JTAG), built-in self-test (BIST), protocol compliance testing per IEEE 802.3 standards

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 Transmit FIFO Buffer

Manufacturer profiles associated with Transmit FIFO Buffer.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a Transmit FIFO Buffer?

To temporarily store outgoing data packets in sequential order, ensuring smooth transmission flow between the processor and network interface while preventing data collisions and loss.

How does buffer depth affect transmission performance?

Deeper buffers allow more data packets to be queued, reducing transmission latency and improving throughput during burst traffic, but increase silicon area and power consumption.

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.

Transmit FIFO Buffer