MT90823AG

Telecom Overview

The MT90823AG is a telecommunications IC switch manufactured by Microchip Technology, designed for high-density digital switching applications. It provides a 2,048 × 2,048 channel non-blocking switching matrix operating at data rates up to 8.192 Mb/s. The device supports variable or constant throughput delay per channel and automatically identifies ST-BUS/GCI interfaces. It accepts ST-BUS streams of 2.048, 4.096, or 8.192 Mb/s. Powered by a 3V to 3.6V supply with a typical current consumption of 45mA, it operates within an industrial temperature range of -40°C to 85°C. The component is housed in a 120-PBGA (23x23) surface-mount package.

Telecom Feature Summary

• Provides a large-scale 2,048 × 2,048 channel non-blocking switching fabric for telecommunications networks.
• Supports automatic identification of ST-BUS and GCI interfaces for flexible integration.
• Enables per-channel configuration for either variable or constant throughput delay.

Telecom Applications

• Telecommunications network infrastructure requiring high-density digital switching
• Systems utilizing ST-BUS or GCI interface protocols
• Digital cross-connect systems handling 2.048, 4.096, or 8.192 Mb/s streams

Telecom Procurement Notes

Verify the specific suffix AG against official Microchip documentation to confirm the 120-PBGA package and industrial temperature rating. Ensure compatibility with 3V to 3.6V power supplies and check for any required external components for signal integrity in high-speed ST-BUS applications.

Telecom Selection Notes

Select this component when a non-blocking digital switch with over four million potential connections is required. Consider the 120-PBGA footprint for board space constraints. Verify that the system requires support for ST-BUS/GCI auto-identification and fixed or variable delay characteristics before finalizing the design.

Telecom Part Context

The MT90823AG belongs to the MT90823 family of large digital switches from Microchip Technology. This series is engineered for telecom environments, offering scalable switching capabilities. Other variants in the family may differ in package type, such as LQFP options, but share the core switching architecture and interface support specifications.

Telecom Replacement Considerations

Check for other MT90823 variants with different packages if pinout compatibility is not required. Verify functional equivalence regarding the 2,048 x 2,048 matrix size and supported data rates before substituting.