LE9531CMQCT

Telecom Overview

The LE9531CMQCT is a discontinued telecommunications integrated circuit manufactured by Microchip Technology. It functions as a single-channel Subscriber Line Interface Circuit (SLIC) designed for user line interface applications. The device operates with a supply voltage of 3.3V and draws a supply current of 40mA. It is housed in a 28-lead Quad Flat No-Lead (QFN) package with a Moisture Sensitivity Level (MSL) rating of 3, allowing for 168 hours of floor life at controlled conditions. The component complies with RoHS3 standards and carries an ECCN classification of EAR99.

Telecom Feature Summary

• Integrated subscriber line interface circuit functionality for telecom applications
• Single-channel architecture for user line interfacing
• RoHS3 compliant construction

Telecom Applications

• Telecommunications user line interfaces
• Subscriber line interface concepts (SLIC)

Telecom Procurement Notes

This component has been officially declared End-of-Life (EOL) by the manufacturer since March 7, 2016. Current availability is limited to existing stock or surplus channels. Verification of authenticity and lot traceability is critical when sourcing from non-direct suppliers due to the discontinuation status.

Telecom Selection Notes

Designers requiring this specific SLIC function must account for the obsolete status of the LE9531CMQCT. Evaluation of alternative components is necessary for new production designs. Compatibility checks should focus on pinout correspondence and electrical parameter alignment with successor devices.

Telecom Part Context

The LE9531CMQCT belongs to the Microchip LE9531 series of telecommunications interface ICs. This series provides specialized hardware for managing analog subscriber lines in telephony systems. The CMQCT suffix denotes the specific QFN packaging and tape-and-reel delivery format used for automated assembly processes.

Telecom Replacement Considerations

Microchip Technology lists the LE9541DUQCT as a similar replacement part for the LE9531DMQCT variant. Engineers should verify if the LE9541DUQCT meets the specific requirements for the LE9531CMQCT application.