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. 178-5221
Mfr. Part No.LAN9252I/PT
BrandMicrochip
TWD343.40
Each (In a Tray of 160)
units
10BaseT, 100BaseTX Host Bus MDI, MDIX, MII, RMII Full Duplex, Half Duplex 100Mbps Internal ANSI X3.263, IEEE 802.3, IEEE 802.3u Surface Mount TQFP 64 Yes Yes 3.3 (Max.) V 10 x 10 x 1.05mm
RS Stock No. 880-6718
Mfr. Part No.LAN9252I/PT
BrandMicrochip
TWD415.00
Each
units
10BaseT, 100BaseTX Host Bus MDI, MDIX, MII, RMII Full Duplex, Half Duplex 100Mbps Internal ANSI X3.263, IEEE 802.3, IEEE 802.3u Surface Mount TQFP 64 Yes Yes 3.3 (Max.) V 10 x 10 x 1.05mm
RS Stock No. 880-6714
Mfr. Part No.LAN9252I/ML
BrandMicrochip
TWD387.00
Each
units
10BaseT, 100BaseTX Host Bus MDI, MDIX, MII, RMII Full Duplex, Half Duplex 100Mbps Internal ANSI X3.263, IEEE 802.3, IEEE 802.3u Surface Mount QFN 64 Yes Yes 3.3 (Max.) V 9 x 9 x 0.95mm
RS Stock No. 178-4863
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
TWD90.50
Each (In a Tube of 27)
units
10BaseT Serial-SPI SPI Full Duplex, Half Duplex 10 Mbps, 100 Mbps, 1000 Mbps - IEEE 802.3 Surface Mount SOIC 28 - Yes 3.3 V 17.9 x 7.5 x 2.05mm
RS Stock No. 698-8987
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
TWD97.00
Each
units
10BaseT Serial-SPI SPI Full Duplex, Half Duplex 10 Mbps, 100 Mbps, 1000 Mbps - IEEE 802.3 Surface Mount SOIC 28 - Yes 3.3 V 17.9 x 7.5 x 2.05mm
RS Stock No. 178-5356
Mfr. Part No.LAN9252I/ML
BrandMicrochip
TWD311.80
Each (In a Tray of 260)
units
10BaseT, 100BaseTX Host Bus MDI, MDIX, MII, RMII Full Duplex, Half Duplex 100Mbps Internal ANSI X3.263, IEEE 802.3, IEEE 802.3u Surface Mount QFN 64 Yes Yes 3.3 (Max.) V 9 x 9 x 0.95mm
RS Stock No. 912-2941
Mfr. Part No.ENC28J60-I/SS
BrandMicrochip
TWD79.60
Each (In a Tube of 47)
units
10BaseT Serial-SPI MII, MIIM Full Duplex, Half Duplex 10Mbps Internal IEEE 802.3 Surface Mount SSOP 28 - Yes 3.3 V 10.5 x 5.6 x 1.85mm
RS Stock No. 798-5245
Mfr. Part No.LAN9500AI-ABZJ
BrandMicrochip
TWD167.00
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. 911-5710
Mfr. Part No.LAN9220-ABZJ
BrandMicrochip
TWD135.20
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. 861-0576
Mfr. Part No.LAN91C113-NU
BrandMicrochip
TWD362.00
Each
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount TQFP 128 Yes Yes 3.3 V 16 x 16 x 1.2mm
RS Stock No. 177-3534
Mfr. Part No.KSZ8851-16MLLI
BrandMicrochip
TWD129.20
Each (In a Tray of 250)
units
10BaseT, 100BaseTX - 10BaseT, 100BaseTX Full Duplex, Half Duplex 100Mbit/s Internal IEEE 802.3u, IEEE 802.3x Surface Mount LQFP 48 Yes Yes 3.3 V 7.1 x 7.1 x 1.45mm
RS Stock No. 823-0681
Mfr. Part No.LAN91C111-NS
BrandMicrochip
TWD795.00
Each
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. 178-5232
Mfr. Part No.KSZ8851-16MLL
BrandMicrochip
TWD118.10
Each (In a Tray of 250)
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 10 Mbps, 100 Mbps - IEEE 802.3u, IEEE 802.3x Surface Mount LQFP 48 Yes Yes 1.8 V, 2.5 V, 3.3 V 7 x 7 x 1.4mm
RS Stock No. 672-6840
Mfr. Part No.LAN9218-MT
BrandMicrochip
TWD648.00
Each
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 10 Mbps, 100 Mbps - IEEE 802.3u Surface Mount TQFP 100 Yes Yes 3.3 V 14 x 14 x 1.4mm
RS Stock No. 889-5294
Mfr. Part No.ENC28J60-I/ML
BrandMicrochip
TWD84.50
Each (In a Tube of 61)
units
10BaseT Serial-SPI MII, MIIM Full Duplex, Half Duplex 10Mbps - IEEE 802.3 Surface Mount QFN EP 28 - Yes 3.3 V 6 x 6 x 0.88mm
RS Stock No. 698-8981
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
TWD104.00
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. 672-6837
Mfr. Part No.LAN91C111-NU
BrandMicrochip
TWD838.00
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. 772-9420
Mfr. Part No.LAN91C111I-NS
BrandMicrochip
TWD839.00
Each
units
10BaseT, 100BaseTX ISA MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3u Surface Mount QFP 128 Yes Yes 3.3 V 14.2 x 14.2 x 1.05mm
New
RS Stock No. 187-7745
Mfr. Part No.LAN7431-I/YXX
BrandMicrochip
TWD408.00
Each
units
- - - Full Duplex, Half Duplex 2.5Gbit/s External IEEE 802.3az Surface Mount SQFN 72 Yes Yes 1.8 V, 2.5 V, 3.3 V 10 x 10 x 0.95mm
RS Stock No. 823-3450
Mfr. Part No.LAN9512I-JZX
BrandMicrochip
TWD195.00
Each
units
10BaseT, 100BaseTX - - Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 64 Yes - 1.8 V, 3.3 V 9.1 x 9.1 x 0.95mm