DS2187+

Telecom Overview

The DS2187+ is a telecom interface integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It is designed for E1/T1 line interface applications, providing essential signal processing capabilities for digital telecommunications networks. The component operates within a standard voltage range and supports surface mount or through-hole configurations depending on the specific package variant, such as the 18-DIP. It functions as a critical interface unit to manage data transmission speeds between CPU and external devices in legacy telecom systems.

Telecom Feature Summary

• Provides dedicated E1/T1 line interface functionality for digital telecommunication equipment
• Integrates internal buffering logic to accommodate speed differences between host processors and peripheral devices
• Supports standard telecom signaling protocols required for network synchronization and data integrity

Telecom Applications

• E1/T1 digital subscriber line access multiplexers (DSLAMs)
• Telecommunications network interface units
• Legacy PBX systems requiring E1/T1 connectivity
• Digital cross-connect systems

Telecom Procurement Notes

Verify component authenticity due to discontinued status. Check RoHS compliance documentation carefully as older Maxim parts may not meet current environmental standards. Confirm package type matches design requirements since variants exist. Source only from authorized distributors or verified surplus suppliers to avoid counterfeit components. Validate datasheet revisions against current application needs.

Telecom Selection Notes

Select this component only for designs requiring specific E1/T1 interface compatibility with legacy systems. Ensure voltage levels and pinout configurations match the target PCB layout. Consider thermal management requirements if operating at maximum temperature limits. Verify that the 18-DIP package fits the available board space and assembly process capabilities. Evaluate alternative modern interfaces if new design constraints allow.

Telecom Part Context

The DS2187+ belongs to the Maxim Integrated family of telecom interface ICs, specifically targeting E1 and T1 transmission standards. These components were widely used in telecommunications infrastructure before the widespread adoption of more integrated solutions. The part represents a specialized solution for managing serial data streams in professional telecom environments, distinct from general-purpose interface chips.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Due to the discontinued status and specific legacy nature of E1/T1 interface requirements, direct pin-to-pin replacements may not exist. Engineers should consult official Analog Devices documentation for potential obsolescence notices or recommended upgrades.