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VSC8244

Data Sheet

Quad 10/100/1000BASE-T PHY with RGMII and RTBI Interfaces

VMDS-10108 Revision 4.2

February 2019

Microsemi Corporation One Enterprise, Aliso Viejo, CA 92656 USA

sales.support@microsemi.com www.microsemi.com

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1 General Description

Ideally suited for high port density Gigabit Ethernet switches

and routers, or multi-port Network Interface Cards (NICs),

Microsemi's VSC8244 integrates four low-power, triple speed

(10BASE-T, 100BASE-TX, and 1000BASE-T) Ethernet

transceivers in thermally-enhanced, 260-pin plastic Ball Grid

Array (BGA).

The VSC8244 physical layer "PHY" IC leverages Microsemi’s

proprietary 4th generation DSP Technology. Microsemi's

highly optimized DSP architecture yields industry leading

performance at less than 640mW per port, supporting

1000BASE-T with respect to all worst case impairments

(NEXT, FEXT, Echo, and system noise sources).

Each of the four independent triple-speed transceivers

features pin-efficient RGMII and RTBI compliant MAC

interfaces. On-chip RGMII/RTBI series termination resistors

simplify board design challenges by improving signal integrity

and completely eliminating dozens of external series

termination resistors on the receive side of the MAC

interface. In addition, the VSC8244 integrates, for the first

time in the industry, all copper media side line termination

resistors.

The VeriPHY® suite has the ability to identify the cable length

and operating conditions and to isolate common faults that

can occur on Cat5 twisted pair cabling.

2 System Diagrams

Figure 1. VSC8244 System Diagram

Management

I/F

1.2 v

MDC, MDIO

MDINT#_n

Serial

I/F

VSC8244

Quad 10/100/1000BASE-T

Transceiver

3.3 v

Optional

EEPROM

RGMII, RTBI

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

Product specificaties