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. 155-9320
Mfr. Part No.LTC4265CDE#PBF
HK$24.678
Each (In a Tube of 91)
units
PoE-Base - PD Interface - - - IEEE 802.3 Surface Mount DFN 12 - - 60 (Max.) V 4 x 3 x 0.7mm
RS Stock No. 162-4660
Mfr. Part No.DP83816AVNG/NOPB
HK$70.88
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. 665-8992
Mfr. Part No.TPS2376D
HK$17.20
Each (In a Pack of 5)
units
- - - - - - - Surface Mount SOIC 8 - - - 4.9 x 3.91 x 1.58mm
RS Stock No. 698-9126
Mfr. Part No.W5300
BrandWIZnet Inc
HK$55.62
Each
units
10BaseT, 100BaseTX - 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. 173-0300
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
HK$11.568
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. 178-5008
Mfr. Part No.LAN91C111I-NU
BrandMicrochip
HK$196.443
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. 672-6859
Mfr. Part No.LAN9220-ABZJ
BrandMicrochip
HK$44.83
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
HK$34.48
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
New
RS Stock No. 187-7745
Mfr. Part No.LAN7431-I/YXX
BrandMicrochip
HK$92.82
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. 228-986
Mfr. Part No.CS8900A-CQ3Z
HK$83.54
Each
units
10Base2, 10Base5, 10BaseF, 10BaseT ISA AUI Full Duplex, Half Duplex 10Mbps External, Internal IEEE 802.3 Surface Mount LQFP 100 Yes Yes 3.3 V 14 x 14 x 1.4mm
RS Stock No. 672-6846
Mfr. Part No.LAN9218i-MT
BrandMicrochip
HK$194.06
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. 177-3997
Mfr. Part No.KSZ8851-16MLLI
BrandMicrochip
HK$38.44
Each (In a Pack of 2)
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. 889-5130
Mfr. Part No.LAN9514-JZX
BrandMicrochip
HK$36.39
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. 419-952
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
HK$20.145
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. 682-7438
Mfr. Part No.WG82574IT S LBAC
BrandIntel
HK$65.32
Each
units
10BaseT, 100BaseTX, 1000BaseT PCI GMII, MII, RMII Full Duplex, Half Duplex 10 Mbps, 100 Mbps, 1000 Mbps Internal IEEE 802.3ab Surface Mount PQFP 64 Yes Yes 1.05 V, 1.9 V, 3.3 V 9 x 9 x 2.55mm
RS Stock No. 910-1613
Mfr. Part No.KSZ8851-16MLL
BrandMicrochip
HK$34.10
Each
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. 170-0900
Mfr. Part No.W5200
BrandWIZnet Inc
HK$35.222
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. 823-3450
Mfr. Part No.LAN9512I-JZX
BrandMicrochip
HK$49.10
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
RS Stock No. 851-4686
Mfr. Part No.LTC4265CDE#PBF
HK$31.995
Each (In a Pack of 2)
units
PoE-Base - PD Interface - - - IEEE 802.3 Surface Mount DFN 12 - - 60 (Max.) V 4 x 3 x 0.7mm
RS Stock No. 798-5236
Mfr. Part No.LAN9221I-ABZJ
BrandMicrochip
HK$70.92
Each
units
10BaseT, 100BaseTX - MII Full Duplex, Half Duplex 10 Mbps, 100 Mbps Internal IEEE 802.3, IEEE 802.3u Surface Mount QFN 56 Yes Yes 3.3 V 7.95 x 7.95 x 0.9mm
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