MT3271BE1

Telecom Overview

The MT3271BE1 is a DTMF receiver integrated circuit manufactured by Microchip Technology, designed for telecommunications interface applications. It operates within a supply voltage range of 4.75V to 5.25V and features a parallel interface with one circuit. The device draws a supply current of 3mA and supports a power dissipation of 500mW. It includes a 4.19MHz oscillator connection and is housed in an 8-PDIP package. This component is specifically engineered for dual-tone multi-frequency signal reception tasks.

Telecom Feature Summary

• Dual-tone multi-frequency signal reception capability
• Parallel interface connectivity
• Integrated oscillator support at 4.19MHz

Telecom Applications

• Telecommunications equipment signal processing
• DTMF decoder circuits in communication systems
• Interface ICs for telecom infrastructure

Telecom Procurement Notes

Verify part authenticity through authorized distributors as the MT3271BE1 is listed as obsolete. Confirm package type and lead-free compliance status before ordering. Check datasheet revisions for any functional updates. Ensure supply voltage requirements match system design constraints of 4.75V to 5.25V.

Telecom Selection Notes

Select this component for legacy telecom systems requiring DTMF decoding. Consider the parallel interface requirement and 8-PDIP package availability. Evaluate power dissipation limits of 500mW against thermal management capabilities. Verify compatibility with 4.19MHz oscillator configurations in existing designs.

Telecom Part Context

The MT3271BE1 belongs to Microchip's telecom interface IC family, focusing on DTMF reception functions. It serves as a specialized solution for handling dual-tone multi-frequency signals in communication hardware. The device represents a specific implementation within the broader category of telecom interface integrated circuits offered by the manufacturer.

Telecom Replacement Considerations

No public confirmed substitute part numbers are available for the MT3271BE1 due to its obsolete status. Designers should consult official Microchip documentation for potential pin-compatible alternatives or complete redesign options.