MT8880CPR1

Telecom Overview

The MT8880CPR1 is an integrated Dual-Tone Multi-Frequency (DTMF) transceiver manufactured by Microchip Technology. It operates on a single 5 V power supply with a voltage range of 4.75 V to 5.25 V and draws 7 mA of operating current. The device supports surface mount installation in a 28-PLCC package. It functions within a temperature range of -40°C to +85°C and has a maximum power dissipation of 1 W. This component integrates both transmitter and receiver circuits for telecom signaling applications.

Telecom Feature Summary

• Integrates complete DTMF transmitter and receiver functions on a single chip
• Provides central office quality signal processing capabilities
• Features low power consumption suitable for battery-operated systems
• Includes a standard microprocessor port for direct interface

Telecom Applications

• Telecommunications equipment requiring DTMF signaling
• Central office telephone systems
• Microprocessor-based communication interfaces

Telecom Procurement Notes

Verify the obsolete status of this component before design integration, as it may be discontinued. Confirm that the 28-PLCC package is compatible with existing PCB footprints. Ensure that the 5 V logic levels match the system requirements. Check for lead-free compliance if required by specific regional regulations. Evaluate alternative components due to potential supply chain limitations.

Telecom Selection Notes

Select this component when a combined DTMF send and receive function is required in a compact surface-mount package. The 28-PLCC form factor is suitable for designs where space is constrained but through-hole options are not viable. Consider the 7 mA current draw against total system power budgets. Verify that the microprocessor interface timing aligns with the host controller's bus speed.

Telecom Part Context

This part belongs to the MT8880 series of DTMF transceivers from Microchip Technology. It shares functional similarities with other variants like the MT8880CE and MT8880CP1, differing primarily in packaging and termination styles. The series is designed for telecom interface applications requiring reliable dual-tone multi-frequency generation and detection.

Telecom Replacement Considerations

The MT8880CE and MT8880CP1 are related parts within the same family. The MT8880CE typically uses a 20-pin DIP or SOIC package, while the MT8880CP1 uses the 28-PLCC package similar to the MT8880CPR1. Pinout compatibility should be verified before substitution.