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Part Number: DP83891
Description: The DP83891 is the first fully integrated, feature rich Physi-calLayertransceiverwithintegrated PMDsublayerstosup-port ...
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DP83891
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DataSheet
General Description
DP83891 General Description
The DP83891 is the first fully integrated, feature rich Physi-calLayertransceiverwithintegrated PMDsublayerstosup-port 10BASE-T,100BASE-TX and 1000BASE-T Ethernet protocols. It operates on existing CAT5 cables which reduces deployment costs.
The DP83891 is designed for easy implementation of 10/100/1000 Mb/s Ethernet LANs. It interfaces directly to Twisted Pair media via an external standard Quad trans-former. The DP83891 connects to the MAC layer through the IEEE 802.3u Standard Media Independent Interface (MII) or the IEEE 802.3z Gigabit Media Independent Inter-face (GMII).
DP83891 Features
Fully integrated 10BASE-T,100BASE-TX and 1000BASE-T capable
Single Quad TX-Transformer interface for all speeds
Fully compliant to IEEE 802.3u 100BASE-TX and IEEE 802.3z/ab 1000BASE-T specifications. Fully integrated andfullycompliantANSIX3.T12PMDphysicalsublayer hat includes adaptive equalization and Baseline Wan-der compensation.
Supports Auto-MDIX
IEEE 802.3u Auto-Negotiation and Parallel Detection
Fullyauto-negotiatesbetween10,100and1000Mb/s full duplex and half duplex devices
3.3 V MAC interfaces:
IEEE 802.3u MII
IEEE 802.3z GMII
LED support (Link, Speed, Activity, Duplex, Collision,Auto-Negotiation, TX and RX indications)
Management Register Set (MDIO and MDC)
Single 3.3 V power supply
5 V tolerant I/Os
208-pin PQFP package
Single Quad TX-Transformer interface for all speeds
Fully compliant to IEEE 802.3u 100BASE-TX and IEEE 802.3z/ab 1000BASE-T specifications. Fully integrated andfullycompliantANSIX3.T12PMDphysicalsublayer hat includes adaptive equalization and Baseline Wan-der compensation.
Supports Auto-MDIX
IEEE 802.3u Auto-Negotiation and Parallel Detection
Fullyauto-negotiatesbetween10,100and1000Mb/s full duplex and half duplex devices
3.3 V MAC interfaces:
IEEE 802.3u MII
IEEE 802.3z GMII
LED support (Link, Speed, Activity, Duplex, Collision,Auto-Negotiation, TX and RX indications)
Management Register Set (MDIO and MDC)
Single 3.3 V power supply
5 V tolerant I/Os
208-pin PQFP package
DP83891 Typical Application
10/100/1000 Mb/s capable node cards
Switches with 10/100/1000 Mb/s capable ports
High speed uplink ports (backbone)
High end workstations
Switches with 10/100/1000 Mb/s capable ports
High speed uplink ports (backbone)
High end workstations
DP83891
PDF/DataSheet Download
- Datasheet: DP83891
- File Size: 20096 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
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DP83891 Relative Products
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DP83865BVH
The DP83865 is a fully featured Physical Layer transceiver with integrated PMD sublayers to support 10BASE-T,100BASE-TX and 1000BASE-T Ethernet protocols.The DP83865 is an ultra low power version of the DP83861 and DP83891. It uses advanced 0.18 um, 1.8 V CM...
DP83865
The DP83865 is a fully featured Physical Layer transceiver with integrated PMD sublayers to support 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet protocols. The DP83865 is an ultra low power version of the DP83861 and DP83891. It uses advanced 0.18 um, 1.8 V ...
DP83864
The DP83864 is an extremely efficient full featured Quad Physical Layer transceiver with integrated PMD sublayers to support 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet protocols.The DP83864 contains four integrated ultra low power Gigabit Physical layers. ...
DP83861VQM-3
The DP83861 is a full featured Physical Layer transceiver with integrated PMD sublayers to support 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet protocols.The DP83861 uses state of the art 0.18 m + 1.8 V/3.3 V CMOS technology, fabricated at National Semicondu...
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