2.5G Ethernet PHY (4 port), USXGMII-M, MACSEC, Industrial Temp
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Information 2.5G Ethernet PHY (4 port), USXGMII-M, MACSEC, Industrial Temp
Ethernet Bandwidth (Mbps) 10, 100, 1000, 2500
Interfaces SGMII+, USXGMII-M
1588v2 Yes
SyncE Yes
Thermal Sensor Yes
Min Temp (°C) -40
Max Temp (°C) 85
Package BGA-236
X x Y Package Dimension (mm) 12 x 12
Software Type PHY Driver
Software Location Upstreamed: /drivers/net/phy/mxl-gpy.c
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The GPY245 is a 4-port 2.5GbE PHY that is suited for routers, switches, and home gateways. It provides interoperability and is optimized to work with 2.5GbE PHY for PCs.
The device temperature is monitored by an internal thermal sensor that provides thermal information for system warnings or initiates speed reduction to prevent system overheating. It supports a timing synchronization according to the IEEE 1588v2 standard required for Industrial, transportation, and mobile networking.
The GPY245 supports the 10G USXGMII-4×2.5G mode to connect the SoC or the switch MAC interface with less pin counts.
It provides four SGMII+ to the SoC or the switch MAC which supports SGMII+ only.
The GPY245 has a typical power consumption of around 1W per port in 2.5GBASE-T mode. The device supports energy-efficient Ethernet to reduce power consumption depending on traffic. Additionally, the power can be saved at the system level by using the Wake-on-LAN (WoL) functionality and the no link states.
The GPY245 is packaged in a small 12 x 12mm FC-BGA-236, ideal for 4-layer PCBs. The low EMI line driver with integrated termination simplifies the PCB design. Four SGMII+ and one USXGMII interfaces support 10/100/1000/2500Mbps speeds. The device requires only 3 power sources (3.3V/1.8V/core).

  • Support of 10BASE-Te, 100BASE-TX full and half-duplex, 1000BASE-T and 2.5GBASE-T full-duplex
  • Two power sources for SGMII and three power sources for USXGMII (3.3V/1.8V/core)
  • FC-BGA-256 package (12 x 12mm)
  • Four channel SGMII+ or single channel USXGMII-4×2.5G mode
  • Typical power consumption around 1W per port in 2.5GBASE-T mode
  • Precise time stamping according to the IEEE 1588Version 2
  • Smart LED brightness control integrated for the link status display
  • Smart AZ for legacy MAC to support IEEE 802.3az power saving in idle mode
  • Remote firmware upgradable through external optional flash
  • Programmable thermal sensor to monitor the device temperature for the system warning and the down speed
  • Jumbo frames of up to 10 KB
  • Cable diagnostics
  • Auto down speed for Cat3 (four wires) or bad cable
  • Auto MDI/MDI-X and auto polarity correction
  • Wake-on-LAN
  • Rate adaptation over USXGMII
  • Preamble alignment

  • Broadband router: xPON, wireless, 4G/5G, G.Fast,, cable, xDSL
  • Home gateway: wireless gateway, home server, home storage (NAS)
  • High port and low port count 2.5GbE switch
  • Dual-band dual-concurrent 802.11ac/ax enterprise access point

Documentation & Design Tools

Type Title Version Date File Size
Product Flyers GPY24x 2.5G Ethernet PHYs Flyer 01 November 2022 927.3 KB
Product Brochures Ethernet Brochure 002 December 2023 4.1 MB
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Parts & Purchasing

Part Number Product ID (MMID) Pkg Code Packaging Type Min Temp Max Temp Notes Status Buy Now
GPY245B0BI 999X6K BGA-236 Tape & Reel -40 85 FW0x8B83 Active
GPY245-EVK-1 Board GPY245 – 2.5G PHY SGMII Loopback Reference Board (4-port) Active
GPY245-EVK-2 Board GPY245 – 2.5G PHY USXGMII Loopback Reference Board (4-port) Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.


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