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. 698-8987
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
$5.02
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. 178-4863
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
$4.36
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. 178-5356
Mfr. Part No.LAN9252I/ML
BrandMicrochip
$13.113
Each (In a Tray of 260)
units
100BaseTX, 10BaseT 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. 178-5221
Mfr. Part No.LAN9252I/PT
BrandMicrochip
$14.427
Each (In a Tray of 160)
units
100BaseTX, 10BaseT 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
$17.44
Each
units
100BaseTX, 10BaseT 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. 419-952
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
$2.32
Each (In a Pack of 2)
units
100BaseTX, 10BaseT - 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. 880-6718
Mfr. Part No.LAN9252I/PT
BrandMicrochip
$19.19
Each
units
100BaseTX, 10BaseT 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. 173-0300
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
$1.844
Each (In a Tray of 260)
units
100BaseTX, 10BaseT - 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. 177-3997
Mfr. Part No.KSZ8851-16MLLI
BrandMicrochip
$7.24
Each (In a Pack of 2)
units
100BaseTX, 10BaseT BIU 100BaseTX, 10BaseT 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. 698-9126
Mfr. Part No.W5300
BrandWIZnet Inc
$10.74
Each
units
100BaseTX, 10BaseT - MDI/MDIX, MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps - - Surface Mount LQFP 100 Yes Yes 3.3 V 14.1 x 14.1 x 1.4mm
RS Stock No. 687-8749
Mfr. Part No.ENC424J600-I/ML
BrandMicrochip
$6.22
Each
units
100BaseTX, 10BaseT Serial-SPI MII, MIIM Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3 Surface Mount QFN 44 Yes Yes 3.3 V 8 x 8 x 0.88mm
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. 672-6837
Mfr. Part No.LAN91C111-NU
BrandMicrochip
$40.85
Each
units
100BaseT, 100BaseT4, 100BaseTX, 10BaseT 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. 887-7283
Mfr. Part No.LAN91C111-NU
BrandMicrochip
$29.16
Each (In a Tray of 90)
units
100BaseT, 100BaseT4, 100BaseTX, 10BaseT 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. 672-6840
Mfr. Part No.LAN9218-MT
BrandMicrochip
$30.55
Each
units
100BaseTX, 10BaseT - - 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. 772-9420
Mfr. Part No.LAN91C111I-NS
BrandMicrochip
$44.48
Each
units
100BaseTX, 10BaseT 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. 716-0449
Mfr. Part No.LAN9512-JZX
BrandMicrochip
$7.80
Each
units
100BaseTX, 10BaseT - - 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. 889-5421
Mfr. Part No.LAN91C111I-NS
BrandMicrochip
$34.308
Each (In a Tray of 66)
units
100BaseTX, 10BaseT 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. 665-8992
Mfr. Part No.TPS2376D
$3.814
Each (In a Pack of 5)
units
- - - - - - - Surface Mount SOIC 8 - - - 4.9 x 3.91 x 1.58mm
RS Stock No. 772-9427
Mfr. Part No.LAN91C96-MU
BrandMicrochip
$26.35
Each
units
10BaseT EISA, ISA AUI Full Duplex 10Mbps External, Internal IEEE 802.3 Surface Mount TQFP 100 - Yes 3.3 V 14.1 x 14.1 x 1.05mm
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