Microchip VSC8244 Manual

Microchip Ikke kategoriseret VSC8244

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Side 1/121

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

1 of 3

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

VSC8244

Data Sheet

VMDS-10108 Revision 4.2

February 2019

2 of 3

4 Applications

3 Features Benefits

• Quad, low power, 10/100/1000BASE-T in a

19mm HS-BGA package

• Catalyzes market for low-cost & high density LAN, WAN,

SAN, & MAN switches

• Lowest power consumption in the industry at less than

640mW/port (1000BASE-T mode)

• Eliminates heatsinks and fans for Gigabit to the desktop

LAN switches

• Supports PICMG 2.16 and 3.0 Ethernet backplanes at

less than 500 mW/port

• Lowest power mode reduces supply costs

• Patented, low EMI line driver with integrated line side

termination resistors

• Removes 12 passive components per PHY*, reducing

PCB area & cost by 50%

• Saves up to 50% on magnetic module cost with

SimpliPHY’d magnetics

• Enables magnetic-less PICMG backplane designs

• Supports RGMII v1.3 (2.5V & 3.3V) & v2.0 (1.5V HSTL) • Compatible with a wide variety of parallel I/F switch ICs

• User-programmable RGMII timing compensation • Simplifies PCB layout; eliminates PCB trombones

• Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX,

1000BASE-T) specifications

• Ensures seamless deployment throughout copper

networks with industry’s highest tolerance to noise and

substandard cable plants

• >10kB jumbo frame support with programmable

synchronization FIFOs

• Provides for maximum jumbo frame sizes in custom

SAN and LAN systems

• Five Direct drive LEDs per port with on-chip filtering or

serial LED interface option

• Eliminates external components and EMI issues

• Three user configuration options: 1) optional serial

EEPROM, 2) hardware configuration pins, or 3) Serial

Management Interface (SMI)

• Offers design engineer a solution to fit any unmanaged

or managed system requirement

• Full suite of BIST, near-end, and far-end loopback

modes

• Simplifies comprehensive in-system test to ensure

highest product quality

• VeriPHY® cable diagnostics • Identifies cable length and operating conditions to

isolate common faults that can occur on Cat5 twisted

pair cabling

• Automatic detection and correction of cable pair swaps,

pair skew and pair polarity, along with HP Auto MDI/

MDI-X crossover function

• Compatible with 1st generation 1000BASE-T PHYs.

• Supports Auto MDI/MDI-X even when Autonegotiation is

disabled

• Manufactured in advanced 0.13µm, 3.3V/1.2V digital

CMOS process

• Most cost effective technology eliminates more

expensive analog process variants

* or, 576 components for a 48-port switch

• High Port Density 10/100/1000BASE-T Switches • Gigabit Ethernet-based SAN, NAS, and MAN Systems

• Workgroup LAN Switches & Routers • High Performance Workstations & Multi-Port Server NICs

• Backplane Applications such as PICMG 2.16, 3.0

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	VSC8244

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