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VSC8257

4 Port 10GbE XFI/SFI PHY with Premium IEEE 15

Status: In Production

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RoHS Information
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Device Overview

Summary

VSC8257 is a quad 1G/10G serial-to-serial Ethernet PHY featuring VeriTime™, Microsemi's IEEE 1588v2 network timing technology. It also supports dual-sided 10GBASE-KR functionality including auto-negotiation and training in a small form factor, low-power FCBGA ideal for a wide array of board-level signal integrity designs and system-level IEEE standard compliant Ethernet connectivity. VeriTime™ is Microsemi's patent-pending network timing technology that delivers the industry's most accurate IEEE 1588v2 implementation. It is the only IEEE 1588v2 solution to be validated by major OEMs in real-world tests, and it has already been adopted as the preferred low-cost upgrade for meeting emerging requirements in 4G/LTE-Advanced (LTE-A). The VSC8257 device supports both 1-step and 2-step PTP frames for ordinary clock, boundary clock, and transparent clock modes of operation, along with complete Y.1731 OAM performance monitoring capabilities. Target applications for the VSC8257 device include switching, IP edge router connectivity, rack mount server access through backplane, fiber and copper cable connectivity, and standalone server access (in LAN on motherboard designs or separate network adapters). The device delivers excellent jitter attenuation with low power. It is also well-suited for SFP+ and QSFP+ based optical modules and direct attach copper cabling as well as challenging backplane interface applications.

Additional Features
  • Standards supported include IEEE 1588v2/Y.1731 OAM (4 ns), IEEE 802.3ae, IEEE 802.3ap, SFF-8431, ITU-T G.8261, and ITU-T G.8262
    • Standards supported include IEEE 1588v2/Y.1731 OAM (4 ns), IEEE 802.3ae, IEEE 802.3ap, SFF-8431, ITU-T G.8261, and ITU-T G.8262
    • Support for 10G LAN, 10G WAN, and 1G modes
    • Support for SFP+/QSFP+ line modules and 10GBASE-KR backplanes between 1.25 Gbps and 10.3125 Gbps (including auto-negotiation and training)
Parametrics
Name
Value
Ethernet Bandwidth
10Gbps
LEDs
4
Temp. Range Min. (°C)
-40
Wake-on-LAN
No
Automotive
No
1588v2
Yes
Interface1
XFI/SFI/KR
Fiber Support
Yes
SyncE
Yes
MAC I/O Voltage
1 (differential)
Cable Diagnostics
Yes

Documents

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Data Sheets

01/03/2019
3816KB

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
VSC8257YMR-01
2.045200
3.444444
256
HFCBGA
17x17mm
SAC305
e1
VSC8257YMR
2.045200
3.444444
256
HFCBGA
17x17mm
SAC305
e1
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Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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