RTL8139

Realtek RTL8139D, 100 Mbit/s Ethernet card for 100BASE-T, controller in 100-pin PQFP/LQFP

Realtek Semiconductor Corp RTL8139 is a family of network adapters, which was on the market by 1999.

Models

A RTL8139C chip as seen on a Sega Dreamcast broadband adapter.

• RTL8139C(L) (PCI, mini-PCI, CardBus, Laptop LAN)
• RTL8139C(L)+ (PCI, mini-PCI, CardBus, Laptop LAN)
• RTL8139D(L) (PCI, mini-PCI, PCI LAN/modem combo, Laptop LAN)

8139/8139A/8139B/8139C/8139D

Version	Volt [V]	Features	Notes
RTL8139	5		First version of single chip set
RTL8139A	5	Wake-on-LAN	Internal registers of chip set was expanded
RTL8139B	5 or 3.3	One clock source ASIC	Clock source changed from OSC to Crystal
RTL8139C	3.3	Wake-on-LAN from PCI bus	Expanded ACPI for PCI bus 2.2
RTL8139D	2.5 or 3.3	Wake-on-LAN from PCI bus	0.25µ CMOS process, network boot ROM up to 128 kB

RTL8139 Features

Quantity	RTL8139C(L)	RTL8139D(L)	RTL8139C(L)+
Speed	10/100 Mbit/s
Bus type	PCI 2.2
Multicast support	Yes
Promiscuous mode	Yes
Ports	1x 8P8C
Single chip	Yes
Boot ROM / Flash	Yes, 128kb, can not be used at the same time with External PHY
ACPI/OSPM	Yes	Yes	Yes
Wake-on-LAN	Yes (magic packet, wakeup frame)	Yes (magic packet, link change, wakeup frame)	Yes (magic packet, wakeup frame)
Half/Full duplex	Both	Both	Both
FIFO's	Yes, 2x 2k independent	Yes, 2x 2k independent	Yes, 2x 2k independent
IEEE 802.1Q VLAN			Yes
Dual address cycle			Yes

Also known as

• Realtek RTL8139 Fast Ethernet 10/100M Adapter
• Realtek RTL8139/810x Family Fast Ethernet NIC

See also

• Ethernet
• AMD Lance Am7990 - 1985, AMD Am7990 network chip
• NE2000 - 1987, Novell's NE2000 network card
• 3Com 3c509 - 1994, 3Com 3c509 network card
• RTL8169 - gigabit variant

External links

• realtek.com.tw - RTL8139C(L)
• realtek.com.tw - RTL8139C(L)+
• realtek.com.tw - RTL8139D(L)
• grill42.cz: Realtek 3.3V single chip fast Ethernet controller with power management, RTL8139C(L), 2002-01-10