Brand: Realtek · SKU: RTL8139D · MPN: RTL8139D · Category: Components
The Realtek RTL8139D(L) is a highly integrated and cost-effective single-chip Fast Ethernet controller providing 32-bit performance, PCI bus master capability, and full compliance with IEEE 802.3u 100Base-T specifications and IEEE 802.3x Full Duplex Flow Control. It supports Advanced Configuration Power management Interface (ACPI) and PCI power management for efficient power management, remote wake-up (Magic Packet, Link Change, Wake-up Frame), analog Auto Power-down, and an auxiliary power auto-detect function. It is typically found in PCI Fast Ethernet Adapter cards, featuring an integrated MAC, Physical chip, and transceiver in one chip. Variants like RTL8139D-GR and RTL8139D-LF exist, all described as SINGLE-CHIP MULTI-FUNCTION 10/100Mbps ETHERNET CONTROLLER.
| Interface | PCI Local Bus |
|---|---|
| Clock Source | Supports 25MHz crystal or 25MHz OSC |
| Package Type | 100-pin PQFP/LQFP |
| Memory Support | Supports shared Boot ROM interface for EPROM and Flash Memory |
| Wake-up Support | Remote wake-up (Magic Packet, Link Change, Wake-up Frame) |
| Power Management | ACPI, PCI power management, Analog Auto Power-down, Auxiliary power auto-detect |
| Data Transfer Rate | 10 Mb/s and 100 Mb/s |
| Standards Compliance | IEEE 802.3u 100Base-T, IEEE 802.3x Full Duplex Flow Control |
| Bus Master Capability | Yes |
| Warranty | Varies by supplier/board manufacturer |
| Weight | N/A (IC Component) |
| Dimensions | 100-pin PQFP/LQFP package |
The RTL8139D(L) is a single-chip Fast Ethernet controller providing 10/100Mbps operation over a PCI interface. It is highly integrated and supports modern power management and wake-on-LAN features, making it a cost-effective solution for network controllers.
Yes, this Realtek RTL8139D Single-Chip Fast Ethernet Controller (RTL8139D) is 100% genuine Realtek hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Realtek RTL8139D Single-Chip Fast Ethernet Controller includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the RTL8139D.