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. 173-0300
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
PHP66.849
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. 698-8987
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
PHP136.97
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. 419-952
Mfr. Part No.RTL8201CP-VD-LF
BrandWIZnet Inc
PHP76.65
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. 178-4863
Mfr. Part No.ENC28J60-I/SO
BrandMicrochip
PHP125.846
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. 758-1048
Mfr. Part No.W5200
BrandWIZnet Inc
PHP255.11
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. 698-8981
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
PHP156.22
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. 170-0900
Mfr. Part No.W5200
BrandWIZnet Inc
PHP189.686
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. 178-4846
Mfr. Part No.ENC28J60-I/SP
BrandMicrochip
PHP159.53
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. 170-0733
Mfr. Part No.W5100
BrandWIZnet Inc
PHP196.102
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. 155-9351
Mfr. Part No.LTC4266IUHF#PBF
PHP465.909
Each (In a Tube of 52)
units
IEEE802.3 I2C - - - - IEEE 802.3af Surface Mount QFN 38 - - 3.3 V 7 x 5 x 0.7mm
RS Stock No. 858-0633
Mfr. Part No.LTC4266IUHF#PBF
PHP634.31
Each
units
IEEE802.3 I2C - - - - IEEE 802.3af Surface Mount QFN 38 - - 3.3 V 7 x 5 x 0.7mm
RS Stock No. 419-930
Mfr. Part No.W5100
BrandWIZnet Inc
PHP275.79
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. 889-5294
Mfr. Part No.ENC28J60-I/ML
BrandMicrochip
PHP130.286
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. 666-5710
Mfr. Part No.ENC28J60-I/ML
BrandMicrochip
PHP154.16
Each
units
10BaseT Serial-SPI MII, MIIM Full Duplex, Half Duplex 10Mbps - IEEE 802.3 Surface Mount QFN 28 - Yes 3.3 V 6 x 6 x 0.88mm
RS Stock No. 187-7742
Mfr. Part No.LAN7430-I/Y9X
BrandMicrochip
PHP377.53
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. 178-5232
Mfr. Part No.KSZ8851-16MLL
BrandMicrochip
PHP167.076
Each (In a Tray of 250)
units
100BaseTX, 10BaseT - - 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. 665-8989
Mfr. Part No.TPS2375PW
PHP147.00
Each (In a Pack of 5)
units
- - - - - - - Surface Mount TSSOP 8 - - - 3 x 4.4 x 1.15mm
RS Stock No. 155-9320
Mfr. Part No.LTC4265CDE#PBF
PHP152.74
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. 911-5609
Mfr. Part No.LAN91C96-MU
BrandMicrochip
PHP697.73
Each (In a Tray of 90)
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
RS Stock No. 178-5008
Mfr. Part No.LAN91C111I-NU
BrandMicrochip
PHP1,094.63
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
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