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MT8888CN from ZARLINK

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MT8888CN

Manufacturer: ZARLINK, MITEL

Integrated DTMF Transceiver with Intel Micro Interface

Partnumber Manufacturer Quantity Availability
MT8888CN ZARLINK, MITEL 490 In Stock

Description and Introduction

Integrated DTMF Transceiver with Intel Micro Interface The **MT8888CN** is a versatile and widely used integrated circuit designed for telecommunication applications, particularly in caller ID and DTMF (Dual-Tone Multi-Frequency) signaling systems. Manufactured by Mitel (now part of Microchip Technology), this CMOS-based component combines DTMF generation and decoding functionalities in a single chip, making it a reliable choice for both transmission and reception of tone signals.  

Key features of the MT8888CN include full-duplex operation, allowing simultaneous transmission and detection of DTMF tones, and compatibility with standard telephone line interfaces. It supports the generation of all 16 DTMF tones, ensuring accurate signaling in telephony and remote control applications. Additionally, its built-in call progress monitoring enhances performance in automated systems.  

The IC operates on a single 5V power supply and integrates a band-split filter for precise tone detection, reducing the need for external components. Its digital interface simplifies integration with microcontrollers, making it a preferred choice for embedded systems requiring telephony functions.  

Common applications of the MT8888CN include telephone answering machines, security systems, remote control devices, and interactive voice response (IVR) systems. Its robust design and efficient performance have made it a staple in telecommunications hardware.  

For engineers and developers working on telecommunication projects, the MT8888CN offers a cost-effective and efficient solution for DTMF-based signaling, combining reliability with ease of implementation.

Application Scenarios & Design Considerations

Integrated DTMF Transceiver with Intel Micro Interface

Alternative Part Number

  • CMX868AD2 --: Pin-compatible DTMF transceiver with integrated call progress detection, functionally equivalent to the MT8888 and widely used as a direct replacement.
  • HT9170D --: DTMF receiver/decoder IC offering similar tone decoding functionality in a comparable DIP package, suitable for cost-sensitive designs.
  • MT8870DE --: Same manufacturer family DTMF receiver with compatible tone decoding core, useful when only the receive path is required.

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