VSC8540XMV-04

Overview

The VSC8540XMV-04 is a radiation-tolerant single-port Fast Ethernet copper PHY designed for space-constrained applications. It supports 10BASE-T and 100BASE-TX standards with RGMII, MII, and RMII interfaces. The device operates within an ambient temperature range of -40°C to +125°C and utilizes a QFN-68 surface-mount package. Electrical specifications include a core supply voltage of 950 mV to 1.05 V and analog circuits powered at 2.5 V. It features integrated line-side termination, Wake-on-LAN capabilities, and Synchronous Ethernet support via recovered clock output.

Feature Summary

• Radiation tolerance verified up to 100 Krad(TID) immunity and latch-up immunity below 78 MeV.cm²/mg LET
• Integrated VeriPHY™ cable diagnostics algorithm without TDR dependency
• Supports IEEE 802.3az Energy-Efficient Ethernet (EEE) with ActiPHY™ and PerfectReach™ technologies
• Fast Link Failure (FLF) indication with programmable detection down to less than 150 µs

Applications

• Space-constrained satellite platforms and launch vehicles
• Deep space exploration missions requiring high reliability
• Harsh aerospace environments with extreme temperature variations

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet DS60001603C to confirm package type and quality grade. Confirm availability status as distribution listings may indicate obsolete or discontinued stock levels. Ensure compatibility with required radiation qualification flows such as QML-Q or QML-V equivalents if specified for the mission.

Selection Notes

Select this component when radiation hardness is mandatory for 10/100 Mbps Ethernet connectivity in space applications. Compare interface voltage requirements (1.5V, 1.8V, 2.5V, 3.3V) against the host MAC controller. Evaluate thermal management needs given the operating temperature range and power consumption profiles under EcoEthernet v2.0 technology.

Part Context

This part belongs to the VSC8540RT family of radiation-tolerant Ethernet transceivers manufactured by Microchip Technology. It serves as a specialized variant optimized for aerospace use, offering enhanced reliability compared to standard commercial off-the-shelf (COTS) counterparts while maintaining pin compatibility with non-radiation-hardened designs.

Replacement Considerations

Public confirmed substitute part numbers: VSC8540XMVRT-SV.