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PWM/Tach

next-generation EcoEthernet green technology for optimizing power

in Enterprise networks, data centers, and consumer electronics.

VSC8504 supports four dual media copper/fi ber ports with QSGMII

MAC interfaces, delivering Carrier-quality Synchronous Ethernet for TDM

backhaul links, cellular base stations, and other SyncE applications

VSC8504 features Microsemi’s innovative EcoEthernet 2.0 technology

that supports Energy Effi cient Ethernet (EEE) through ActiPHY™

automatic link powerdown and the PerfectReach™ intelligent algorithm

that adjusts power based on cable length.

The VSC8504 device optimizes power consumption in all link operating

VPPD-02793 . 1.0. 4/16

Best-in-Class Power Consumption

• Lowest power quad port GbE PHY in the industry

• EcoEthernet 2.0 green energy effi ciency modes including

ActiPHY, PerfectReach, and IEEE 802.3az

• Integrated temperature monitoring and LED brightness control

• Fully optimized power consumption for all link speeds

Superior PHY and Interface Technology

• Four integrated 10/100/1000BASE-T Ethernet copper

line side termination resistors

• HP Auto-MDIX support

• Integrated AC-coupling capacitor

• Jumbo frame support up to 16 kB with programmable

synchronization FIFOs

Superior PHY and Interface Technology

• Recovered clock outputs with programmable clock squelch

control and fast link failure indication (<1 ms) for G.8261 SyncE

• 1000BASE-T ring resiliency for switching between master/slave

Key Specifi cations

• 1.0 V core and 2.5 V I/O power supplies

• 3.3 V-tolerant 2.5 V inputs

• 17 mm × 17 mm ball grid array package

• Supports QSGMI v1.3, IEEE 1149.1 JTAG boundary scan, and

IEEE 1149.6 AC-JTAG

signal conditioners

Quad Port QSGMII Dual Media PHY with EEE Support