CM8870 DTMF Decoder Integrated Circuit – DIP Package

The CM8870 is a complete DTMF (Dual Tone Multi-Frequency) receiver and decoder IC. It is designed to decode DTMF signals used in telephone signaling and other applications requiring tone detection. The chip converts the received DTMF tone signals into a corresponding 4-bit binary output.

🔧 Key Features

• 📞 DTMF signal decoder (dual-tone multi-frequency)
• 🔢 4-bit binary output representing detected tones
• ⚡ Operating voltage: 4.5V to 5.5V
• 🎛️ Low power CMOS technology
• 🧱 Available in DIP package for easy prototyping
• 🔄 High noise immunity and accurate tone detection
• 📶 Includes built-in dial tone detection

🧰 Applications

• Telephone tone decoding
• Remote control systems
• DTMF based signaling applications
• Security and automation systems
• Tone-based dialing systems

📦 Package Includes

• 1 × CM8870 DTMF Decoder IC – DIP Package

The CM8870 IC is widely used in telecommunication and control systems for decoding DTMF signals reliably.