The CM8888DI is a full-duplex, single-chip modem integrated circuit manufactured by California Micro Devices (now acquired by Semtech). It is designed for data communication over telephone lines. This device incorporates all the necessary functions for transmitting and receiving data using various modulation techniques. It is commonly utilized in applications requiring reliable data transfer over standard phone lines.

Applications

• Fax machines
• Point-of-sale (POS) terminals
• Set-top boxes
• Remote monitoring systems
• Data acquisition systems

Features

• Full-duplex operation
• Single-chip design
• V.22bis, V.22, V.21, and Bell 212A/103 modulation standards
• DTMF generation and detection
• Microprocessor interface

Benefits

• Cost-effective modem solution
• Reduced board space requirements
• Simplified system design
• Improved data communication reliability
• Compatibility with various communication standards

The CM8888DI supports several industry-standard modulation protocols, enabling it to communicate with a wide range of modems and communication equipment. It integrates DTMF generation and detection capabilities, which are useful for dialing and call progress monitoring. The microprocessor interface allows for easy integration into embedded systems and data communication devices. This IC is a versatile and reliable solution for applications requiring data communication over telephone lines.