Ethernet Controllers

Ethernet controllers are an integrated circuit chip that control Ethernet communications. Ethernet is how most computers communicate with each other and is also how most computers connect with the Internet. The internet cable, which plugs into your computer, transfers data to the Ethernet controller, which then decodes the data and puts it into a form your computer can use.
An Ethernet controller determines whether each packet of data is meant for the local computer or another computer on the same network. If the information is meant for the local computer, it decodes that information and relays it to the processor. If the information is meant for another computer on the network, the information is discarded.
Applications
Modern computers have built-in Ethernet controllers on the motherboard. Older computers use a network interface card, which has the Ethernet controller chip on it.

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Description Price Physical Network Type Host Interface Network Interface Communication Mode Data Rate Loopback Mode Standard Supported Mounting Type Package Type Pin Count Auto-Negotiation DMA Support Typical Operating Supply Voltage Dimensions
RS Stock No. 178-4846
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
SGD9.887
Each (In a Tube of 15)
units
10BaseT Serial-SPI - Full Duplex, Half Duplex 10 Mbps, 100 Mbps, 1000 Mbps - IEEE 802.3 Through Hole SPDIP 28 - Yes 3.3 V 35.56 x 8.51 x 3.81mm
RS Stock No. 698-8981
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
SGD4.66
Each
units
10BaseT Serial-SPI - Full Duplex, Half Duplex 10 Mbps, 100 Mbps, 1000 Mbps - IEEE 802.3 Through Hole SPDIP 28 - Yes 3.3 V 35.56 x 8.51 x 3.81mm
RS Stock No. 178-5244
Mfr. Part No.LAN9512-JZX
BrandMicrochip
SGD13.475
Each (In a Tray of 260)
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 10 Mbps, 100 Mbps - IEEE 802.3u Surface Mount QFN 64 Yes - 3.3 V 9 x 9 x 3.3mm
RS Stock No. 716-0449
Mfr. Part No.LAN9512-JZX
BrandMicrochip
SGD6.90
Each
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 10 Mbps, 100 Mbps - IEEE 802.3u Surface Mount QFN 64 Yes - 3.3 V 9 x 9 x 3.3mm
RS Stock No. 170-0733
Mfr. Part No.W5100
BrandWIZnet Inc
SGD9.363
Each (In a Tray of 160)
units
10BaseT, 100BaseTX SPI MII Full Duplex, Half Duplex 100Mbps Internal IEEE 802.3u Surface Mount LQFP 80 Yes - 3.3 V 10 x 10 x 1.45mm
RS Stock No. 173-0300
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
SGD2.166
Each (In a Tray of 260)
units
10BaseT, 100BaseTX - MII, SNI Full Duplex, Half Duplex 10 Mbps, 100 Mbps External, Internal IEEE 802.3u Surface Mount LQFP 48 Yes - 3.3 V 7 x 7 x 1.5mm
RS Stock No. 419-930
Mfr. Part No.W5100
BrandWIZnet Inc
SGD9.60
Each
units
10BaseT, 100BaseTX SPI MII Full Duplex, Half Duplex 100Mbps Internal IEEE 802.3u Surface Mount LQFP 80 Yes - 3.3 V 10 x 10 x 1.45mm
RS Stock No. 889-5130
Mfr. Part No.LAN9514-JZX
BrandMicrochip
SGD5.989
Each (In a Tray of 260)
units
10BaseT, 100BaseTX USB - Full Duplex, Half Duplex 1.5 Mbps, 12 Mbps, 480 Mbps - IEEE 802.3u Surface Mount QFN 64 - - 3.3 V 9.1 x 9.1 x 0.95mm
RS Stock No. 772-9610
Mfr. Part No.LAN9514-JZX
BrandMicrochip
SGD7.07
Each
units
10BaseT, 100BaseTX USB - Full Duplex, Half Duplex 1.5 Mbps, 12 Mbps, 480 Mbps - IEEE 802.3u Surface Mount QFN 64 - - 3.3 V 9.1 x 9.1 x 0.95mm
RS Stock No. 419-952
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
SGD2.345
Each (In a Pack of 2)
units
10BaseT, 100BaseTX - MII, SNI Full Duplex, Half Duplex 10 Mbps, 100 Mbps External, Internal IEEE 802.3u Surface Mount LQFP 48 Yes - 3.3 V 7 x 7 x 1.5mm
RS Stock No. 672-6859
Mfr. Part No.LAN9220-ABZJ
BrandMicrochip
SGD7.66
Each
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal ANSI 802.3, IEEE 802.3 Surface Mount QFN 56 Yes Yes 1.8 V, 3.3 V 8 x 8 x 0.95mm
RS Stock No. 178-5008
Mfr. Part No.LAN91C111I-NU
BrandMicrochip
SGD74.432
Each (In a Tray of 90)
units
10BaseT, 100BaseT, 100BaseT4, 100BaseTX EISA, ISA MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3u Surface Mount TQFP 128 Yes Yes 3.3 V 14 x 14 x 1mm
RS Stock No. 170-0900
Mfr. Part No.W5200
BrandWIZnet Inc
SGD8.594
Each (On a Reel of 2000)
units
10BaseT, 100BaseTX SPI MDI/MDIX Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal - Surface Mount QFN 48 Yes - 3.63 V dc 7 x 7 x 0.7mm
RS Stock No. 798-5245
Mfr. Part No.LAN9500AI-ABZJ
BrandMicrochip
SGD7.01
Each
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 12 Mbps, 480 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 56 Yes - 3.3 V 8.15 x 8.15 x 0.95mm
RS Stock No. 911-5801
Mfr. Part No.LAN91C111-NS
BrandMicrochip
SGD27.664
Each (In a Tray of 66)
units
10BaseT, 100BaseTX EISA, ISA MII Full Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFP 128 Yes Yes 3.3 V 20.1 x 14.1 x 3.05mm
RS Stock No. 911-5710
Mfr. Part No.LAN9220-ABZJ
BrandMicrochip
SGD5.777
Each (In a Tray of 260)
units
10BaseT, 100BaseTX Host Bus, SMI LAN, MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal ANSI 802.3x, IEEE 802.3, IEEE 802.3u, IEEE 802.3x Surface Mount QFN 56 Yes Yes 1.62 → 3.6 (VDDVARIO) V, 3.3 (VDD33A) V, 3.3 (VDD33REG) V 8.15 x 8.15 x 0.95mm
RS Stock No. 672-6828
Mfr. Part No.LAN91C111I-NU
BrandMicrochip
SGD36.48
Each
units
10BaseT, 100BaseT, 100BaseT4, 100BaseTX EISA, ISA MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3u Surface Mount TQFP 128 Yes Yes 3.3 V 14 x 14 x 1mm
RS Stock No. 889-5809
Mfr. Part No.LAN9514I-JZX
BrandMicrochip
SGD8.116
Each (In a Tray of 260)
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 1.5 Mbps, 12 Mbps, 480 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 64 Yes - 3.3 V 9.1 x 9.1 x 0.95mm
RS Stock No. 889-5803
Mfr. Part No.LAN9500AI-ABZJ
BrandMicrochip
SGD5.797
Each (In a Tray of 260)
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 12 Mbps, 480 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 56 Yes - 3.3 V 8.15 x 8.15 x 0.95mm
RS Stock No. 798-5248
Mfr. Part No.LAN9514I-JZX
BrandMicrochip
SGD9.74
Each
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 1.5 Mbps, 12 Mbps, 480 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 64 Yes - 3.3 V 9.1 x 9.1 x 0.95mm
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