DP83861VQM-3 General Description
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 Semiconductor's South Portland Maine facility.
The DP83861 is designed for easy implementation of 10/100/1000 Mb/s Ethernet LANs. It interfaces directly to Twisted Pair media via an external transformer. This device interfaces directly to the MAC layer through the IEEE 802.3u Standard Media Independent Interface (MII) or the IEEE 802.3z Gigabit Media Independent Interface (GMII).
DP83861VQM-3 Maximum Ratings
Supply Voltage (VDD )...................................... -0.5V to 4.2V
Input Voltage (DCIN )........................... -0.5V to VDD + 0.5V
Output Voltage (DCOUT )..................... -0.5V to VDD + 0.5V
Storage Temperature................................... -65 to 150
ESD Protection .........................................................6000V
DP83861VQM-3 Features
100BASE-TX and 1000BASE-T compliant
Fully compliant to IEEE 802.3u 100BASE-TX and IEEE 802.3z/ab 1000BASE-T specifications. Fully integrated and fully compliant ANSI X3.T12 PMD physical sublayer that includes adaptive equalization and Baseline Wan-der compensation
10BASE-T compatible
IEEE 802.3u Auto-Negotiation and Parallel Detection
Fully Auto-Negotiates between 1000 Mb/s, 100 Mb/s, and 10 Mb/s Full Duplex and Half Duplex devices
Interoperates with first generation 1000BASE-T Physical layer transceivers
3.3V MAC interfaces:
IEEE 802.3u MII
IEEE 802.3z GMII
LED support: Link, Speed, Activity, Collision, TX and RX
Supports 125 MHz or 25 MHz reference clock
Requires only one 1.8 V and one 3.3 V supply
Supports MDIX at 10, 100, and 1000 Mb/s
Supports JTAG (IEEE1149.1)
Dissipates 1 watt in 10/100 Mb/s mode
Programmable Interrupts
208-pin PQFP package
DP83861VQM-3 Typical Application
10/100/1000 Mb/s capable node cards
Switches with 10/100/1000 Mb/s capable ports
High speed uplink ports (backbone)
DP83861VQM-3 Connection Diagram
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