The PEB20901C is a ISDN Communication Controller (ICC) from Siemens, designed to manage the complexities of Integrated Services Digital Network (ISDN) communication. It acts as an interface between digital communication lines and processing systems, enabling efficient handling of voice and data transmission over ISDN networks.

Applications

• ISDN Telephones
• PBX (Private Branch Exchange) Systems
• ISDN Routers
• Terminal Adapters
• Digital Communication Systems

Features

• Full support for ISDN Basic Rate Interface (BRI)
• Integrated HDLC controller
• Flexible interrupt structure
• Direct Memory Access (DMA) support
• Low power consumption
• On-chip clock generation
• Serial Interface for data transmission

Benefits

• Simplified ISDN Implementation: The integrated controller simplifies the design and implementation of ISDN communication in various devices.
• Reduced Development Time: The controller handles ISDN protocol complexities, allowing developers to concentrate on application-specific features.
• Improved System Performance: The high-speed data transmission capabilities enable efficient communication over ISDN networks.
• Lower System Cost: Integration of HDLC and other functions reduces the need for external components.
• Enhanced Communication Reliability: Supports standard ISDN protocols, ensuring compatibility and reliable communication with other ISDN devices.

Technical Specifications

The PEB20901C supports ISDN Basic Rate Interface (BRI) with two B-channels (64 kbps each) and one D-channel (16 kbps). The HDLC controller manages the data link layer functions. DMA support allows for efficient data transfer between the controller and system memory. The chip is designed for low power consumption, suitable for various embedded applications. It is commonly used in older ISDN devices and communication systems. A serial interface is provided for data transmission. It complies with relevant ISDN standards to ensure interoperability. The package type is often a PQFP (Plastic Quad Flat Pack) to allow for dense board population.