VSC9295SM

Overview

The VSC9295 is a Time-Slot Interchange (TSI) switch IC featuring a 136 x 136 architecture with an aggregate bandwidth of 340 Gbps. It supports dual-rate TFI-5 compliant interfaces operating at 2.5 Gbps and 622 Mbps for TDM switching, or 2.488 Gbps, 2.125 Gbps, and 622 Mbps for transparent switching. The device utilizes a dual power supply configuration of +2.5V and 1.2V, with typical power dissipation of 19W and a maximum of 26W when fully utilized. It is housed in a 45.0 mm 1072 fcBGA package and includes a 53 MHz 16-bit CPU interface for configuration.

Feature Summary

• Industry-leading single-chip capacity supporting up to 340 Gbps throughput
• Dual-rate I/O standards compatibility with 2.5 Gbps and 622 Mbps signaling
• Integrated clock recovery, synthesis, equalization, and SONET/SDH framing functions
• Scalable architecture allowing expansion to 1.36 Tbps systems

Applications

• Core and Metro Network transport systems
• DWDM Switch implementations
• Central switching elements for 170 Gbps to 340 Gbps STS-1 grooming fabrics
• Switch elements for 680 Gbps to 1.36 Tbps STS-1 grooming fabrics
• Ingress/Egress devices for multi-terabit STS-1 grooming Clos fabrics

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct pinout and electrical characteristics. Confirm current availability status as distribution channels may report limited stock or end-of-life conditions. Request the latest product brief directly from Microchip Technology to validate technical specifications prior to design integration.

Selection Notes

Select the VSC9295 for high-capacity SONET/SDH applications requiring 340 Gbps switching within a single component. Ensure system designs accommodate the dual voltage requirements of 2.5V and 1.2V. Verify that the host processor supports the required 53 MHz 16-bit CPU interface for adequate control plane performance and configuration management.

Part Context

This component belongs to the Vitesse Semiconductor family of telecom interface ICs, now part of Microchip Technology. It serves as a high-density solution for optical transport networks, replacing multiple lower-capacity switches to reduce board space and power consumption while maintaining standard backplane compatibility.

Replacement Considerations

The VSC9292 is a related model offering 170 Gbps (68 x 68) capacity. Substitution requires evaluating if the reduced port count and bandwidth meet system requirements. Pinouts and software drivers may differ; consult official datasheets for detailed compatibility matrices.