VSC3144XHR-32

Overview

The VSC3144XHR-32 is a 6.5 Gbps 144 × 144 asynchronous crosspoint switch manufactured by Microchip Technology. It features a fully non-blocking switch core with 936 Gbps aggregate bandwidth, supporting multicast and output striping programming modes. The device operates on a 2.5 V power supply with 2.5 V or 3.3 V CMOS TTL-compatible I/O. It utilizes differential CML data outputs with integrated termination impedance and includes input signal equalization (ISE) and adjustable output pre-emphasis EQ. The component is housed in a 45 mm × 45 mm, 1072-pin BGA package and supports both parallel and serial programming interfaces for configuration.

Feature Summary

• Strictly non-blocking switch matrix architecture enabling random access programming of each I/O port without phase or frequency restrictions.
• Integrated signal integrity management through programmable input signal equalization (ISE) and adjustable output pre-emphasis equalization.
• Differential current mode logic (CML) data output drivers with on-die terminations to maintain high signal quality across boards and cables.
• Software-controlled power-down capabilities for unused channels to optimize overall power dissipation.

Applications

• Core and metro transport networks
• Enterprise networking equipment
• High-speed automated test equipment
• Broadcast video systems
• Storage, Ethernet, and networking infrastructure

Procurement Notes

Verify the specific suffix 'XHR-32' against official Microchip documentation to confirm exact package variant and temperature grade. Confirm availability status as this product line may have limited distribution. Ensure compatibility with existing PCB layouts due to the large 1072-pin BGA footprint. Validate that the 2.5 V core voltage aligns with system power requirements.

Selection Notes

Select this component for applications requiring high-density, protocol-independent switching at 6.5 Gbps per channel. Consider the 1072-pin BGA package size when designing PCB layouts. Evaluate the need for input signal equalization and output pre-emphasis features based on trace length and signal integrity requirements. Ensure control logic supports the required parallel or serial programming interface for configuration.

Part Context

The VSC3144 series represents a high-performance crosspoint switch solution designed for next-generation network infrastructure. Originally developed by Vitesse Semiconductor, now part of Microchip Technology, these devices address system-level signal integrity and intersymbol interference issues. The 144x144 configuration provides significant bandwidth density suitable for demanding telecommunications and data center environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Microchip Technology directly for current equivalent products or updated series replacements within the VSC3144 family.