MT88E43BSR1

Telecom Overview

The MT88E43BSR1 is a Calling Number Identification Circuit 2 (CNIC2) manufactured by Microchip Technology. It is designed to receive physical layer signals transmitted according to BT SIN227 & SIN242, UK CCA TW/P&E/312, and Bellcore TR-NWT-002359 standards. The device operates on a single 3.3V or 5V supply and features low power CMOS technology. It is housed in a 24-SOIC package with a width of 7.50mm.

Telecom Feature Summary

• Supports multiple Caller ID transmission standards including BT, UK CCA, and Bellcore specifications.
• Operates on a single voltage supply compatible with both 3.3V and 5V logic levels.
• Integrates low power CMOS design for efficient signal reception.

Telecom Applications

• Telephone exchange systems requiring Caller ID decoding
• Telecommunications equipment adhering to BT and Bellcore signaling protocols
• Cable communications interface modules

Telecom Procurement Notes

Verify the specific suffix 'SR1' against official Microchip documentation to confirm tape-and-reel packaging status. Confirm RoHS compliance and lead times directly with authorized distributors as availability may vary. Ensure the component matches the 24-SOIC footprint requirements for your PCB design.

Telecom Selection Notes

Select this component when designing systems that require direct hardware decoding of Caller ID signals without external microcontroller intervention. It is suitable for applications needing compatibility with legacy British Telecom and North American Bellcore standards. Verify voltage level compatibility with your system's logic family before integration.

Telecom Part Context

This part belongs to the MT88E43 series of telecommunications interface ICs. It is specifically engineered for the CNIC2 function, distinguishing it from standard DTMF receivers like the MT8870 series. The device serves as a specialized solution for voice channel signaling extraction in public switched telephone networks.

Telecom Replacement Considerations

Check Microchip datasheets for pin-compatible alternatives within the MT88E4x family. Verify if generic Caller ID decoder ICs meet the specific timing and voltage requirements of BT SIN227/SIN242 standards.