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. 178-5007
Mfr. Part No.LAN9117-MT
BrandMicrochip
$16.324
Each (In a Tray of 90)
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3u Surface Mount TQFP 100 Yes Yes 3.3 V 14 x 14 x 1.4mm
RS Stock No. 682-7435
Mfr. Part No.WG82574L S LBA9
BrandIntel
$11.35
Each
units
- - - - 1000Mbit/s - - Surface Mount QFN 64 - - 3.3 V 9 x 9 x 0.85mm
RS Stock No. 798-5248
Mfr. Part No.LAN9514I-JZX
BrandMicrochip
$12.85
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
RS Stock No. 162-4660
Mfr. Part No.DP83816AVNG/NOPB
$19.267
Each (In a Tray of 60)
units
10BaseT, 100BaseTX PCI MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3u, IEEE 802.3x Surface Mount LQFP 144 Yes Yes 3.3 V 20 x 20 x 1.4mm
RS Stock No. 177-3997
Mfr. Part No.KSZ8851-16MLLI
BrandMicrochip
$7.415
Each (In a Pack of 2)
units
10BaseT, 100BaseTX BIU 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. 672-6859
Mfr. Part No.LAN9220-ABZJ
BrandMicrochip
$8.69
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. 912-7025
Mfr. Part No.LAN7500-ABZJ
BrandMicrochip
$6.688
Each (In a Tray of 260)
units
10BaseT, 100BaseTX, 1000BaseT USB 10BaseT, 100BaseTX, 1000BaseT Full Duplex, Half Duplex 1000Mbit/s External, Internal IEEE 802.3, IEEE 802.3ab, IEEE 802.3u Surface Mount QFN 56 Yes - 3.3 V 8.15 x 8.15 x 0.95mm
RS Stock No. 177-3920
Mfr. Part No.LAN7500I-ABZJ
BrandMicrochip
$11.01
Each
units
10BaseT, 100BaseTX, 1000BaseT USB 10BaseT, 100BaseTX, 1000BaseT Full Duplex, Half Duplex 1000Mbit/s Internal IEEE 802.3, IEEE 802.3ab, IEEE 802.3u Surface Mount QFN 56 - - 3.3 V 8.15 x 8.15 x 0.95mm
RS Stock No. 889-5294
Mfr. Part No.ENC28J60-I/ML
BrandMicrochip
$4.609
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. 672-6846
Mfr. Part No.LAN9218i-MT
BrandMicrochip
$38.52
Each
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal ANSI 802.3, IEEE 802.3u, ISO/IEC 8802-3 Surface Mount TQFP 100 Yes Yes 3.3 V 14 x 14 x 1.4mm
RS Stock No. 187-7745
Mfr. Part No.LAN7431-I/YXX
BrandMicrochip
$11.73
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. 858-0633
Mfr. Part No.LTC4266IUHF#PBF
$22.92
Each
units
IEEE802.3 I2C - - - - IEEE 802.3af Surface Mount QFN 38 - - 3.3 V 7 x 5 x 0.7mm
RS Stock No. 825-1048
Mfr. Part No.LAN91C96-MS
BrandMicrochip
$26.81
Each
units
10BaseT SPI AUI Full Duplex 10Mbps External, Internal ANSI 8802-3, IEEE 802.3 Surface Mount QFP 100 - Yes 5 V 20.1 x 14.1 x 3.05mm
RS Stock No. 761-9563
Mfr. Part No.LTC4267IDHC-3#PBF
$10.58
Each
units
PoE RJ45 PD Interface - - - IEEE 802.3af Surface Mount DFN 16 - - -57 V 5 x 3 x 0.7mm
RS Stock No. 672-6837
Mfr. Part No.LAN91C111-NU
BrandMicrochip
$40.85
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. 798-5245
Mfr. Part No.LAN9500AI-ABZJ
BrandMicrochip
$8.07
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. 889-5421
Mfr. Part No.LAN91C111I-NS
BrandMicrochip
$37.719
Each (In a Tray of 66)
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
RS Stock No. 187-7742
Mfr. Part No.LAN7430-I/Y9X
BrandMicrochip
$12.90
Each
units
- - - Full Duplex, Half Duplex 2.5Gbit/s External IEEE 802.3az Surface Mount SQFN 48 Yes Yes 1.8 V, 2.5 V, 3.3 V 7 x 7 x 0.95mm
RS Stock No. 178-4846
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
$5.093
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. 823-3450
Mfr. Part No.LAN9512I-JZX
BrandMicrochip
$10.58
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
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