MT88L70AE1

Telecom Overview

The MT88L70AE1 is a single-channel DTMF receiver integrated circuit manufactured by Microchip Technology. It operates within a supply voltage range of 2.7V to 3.6V and draws a typical supply current of 2mA. The device is designed for surface-mount installation in an 18-SOIC package with a width of 7.50mm. It supports an extended industrial operating temperature range from -40°C to +85°C. This component functions as a dedicated signaling circuit for detecting dual-tone multi-frequency signals in telecommunications applications.

Telecom Feature Summary

• Integrated DTMF receiver functionality for single-channel signal detection
• CMOS technology construction for low power consumption
• Surface-mount compatible 18-pin SOIC packaging

Telecom Applications

• Telecommunications interface circuits
• DTMF signaling systems
• Voice communication equipment

Telecom Procurement Notes

Verify the specific suffix AE1 against official Microchip documentation to confirm pinout and electrical characteristics, as variations exist within the MT88L70 family. Confirm RoHS compliance status and lead-free marking requirements prior to integration. Check for obsolescence notices or PCN updates regarding assembly site changes or material substitutions before finalizing procurement plans.

Telecom Selection Notes

Select this component when a single-channel DTMF receiver is required in a surface-mount design. Ensure the system voltage remains within the 2.7V to 3.6V range. Compare against the MT88L70ASR1 variant if tape-and-reel packaging is preferred over the standard tube configuration. Verify that the 18-SOIC footprint matches the PCB layout constraints.

Telecom Part Context

The MT88L70AE1 belongs to the MT88L70 series of DTMF receivers originally developed by Mitel and later acquired by Microchip Technology. It serves as a legacy component for traditional telephone signaling interfaces. The part shares functional similarities with other members of the 8870/88L70 family but differs in package type and manufacturing suffix specifications.

Telecom Replacement Considerations

Publicly confirmed substitutes include the MT88L70ASR1 for surface-mount applications and the MT88L70AE for PDIP variants. Verify compatibility with the MT8870DSR-1 for equivalent SOIC receiver functionality. Cross-reference datasheets to ensure pin-to-pin compatibility and identical electrical parameters before substitution.