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.ApplicationsModern 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. 419-930
Mfr. Part No.W5100
BrandWIZnet Inc
MYR22.50
Each
units
100BaseTX, 10BaseT 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. 170-0733
Mfr. Part No.W5100
BrandWIZnet Inc
MYR17.594
Each (In a Tray of 160)
units
100BaseTX, 10BaseT 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. 170-0734
Mfr. Part No.W3150A+
BrandWIZnet Inc
MYR29.245
Each (In a Tray of 160)
units
100BaseTX, 10BaseT SPI MII Full Duplex 25Mbps - - Surface Mount LQFP 64 Yes - 3.3 V 10.1 x 10.1 x 1.45mm
RS Stock No. 419-978
Mfr. Part No.W3150A+
BrandWIZnet Inc
MYR16.32
Each
units
100BaseTX, 10BaseT SPI MII Full Duplex 25Mbps - - Surface Mount LQFP 64 Yes - 3.3 V 10.1 x 10.1 x 1.45mm
RS Stock No. 173-0305
Mfr. Part No.W5300
BrandWIZnet Inc
MYR24.25
Each (In a Tray of 90)
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. 698-9126
Mfr. Part No.W5300
BrandWIZnet Inc
MYR26.59
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. 419-952
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
MYR11.88
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. 758-1048
Mfr. Part No.W5200
BrandWIZnet Inc
MYR21.06
Each
units
100BaseTX, 10BaseT 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. 170-0900
Mfr. Part No.W5200
BrandWIZnet Inc
MYR24.217
Each (On a Reel of 2000)
units
100BaseTX, 10BaseT 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. 173-0300
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
MYR6.563
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