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M-8870-02 from TELTONE

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M-8870-02

Manufacturer: TELTONE, SMC/LINFINIT

DTMF Receiver

Partnumber Manufacturer Quantity Availability
M-8870-02,M887002 TELTONE, SMC/LINFINIT 320 In Stock

Description and Introduction

DTMF Receiver The **TELTONE M-8870-02** is a **DTMF (Dual-Tone Multi-Frequency) decoder module** designed for telecommunication applications. Below are the factual specifications, descriptions, and features based on available knowledge:  

### **Specifications:**  
- **DTMF Decoding:** Detects and decodes standard DTMF tones (0-9, *, #, A-D).  
- **Frequency Response:** Operates within standard DTMF frequency ranges (low and high group frequencies).  
- **Output Format:** Provides a 4-bit binary output corresponding to the decoded DTMF digit.  
- **Power Supply:** Typically operates on **+5V DC**.  
- **Operating Temperature:** Standard commercial temperature range (specifics may vary).  
- **Package Type:** Available in a **DIP (Dual In-line Package)** for easy integration.  

### **Descriptions:**  
- The **M-8870-02** is a **standalone DTMF decoder IC** that processes incoming tone signals and converts them into digital outputs.  
- It is commonly used in **telephone systems, PBX equipment, remote control applications, and automated voice response systems**.  
- The module includes **built-in band-split filters** to separate high and low DTMF tones for accurate decoding.  

### **Features:**  
- **High Accuracy:** Reliable DTMF tone detection with minimal false triggering.  
- **Simple Interface:** Direct binary output for easy interfacing with microcontrollers or logic circuits.  
- **Low Power Consumption:** Designed for efficient operation in embedded systems.  
- **No External Filtering Required:** Integrated filters eliminate the need for additional components.  

For exact electrical characteristics and timing diagrams, refer to the **official TELTONE datasheet** for the **M-8870-02**.

Application Scenarios & Design Considerations

DTMF Receiver

Alternative Part Number

  • CM8870CPE --: Pin-compatible DTMF receiver IC with the same 8870 function and widely available as a direct functional replacement.
  • MT8870DE --: Industry-standard DTMF decoder in the same 8870 family, electrically equivalent and commonly used as a drop-in substitute.
  • HT9170D --: Alternative DTMF receiver with comparable functionality and interface, suitable when the original 8870 part is unavailable.

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