DS3177+

Overview

The DS3177+ is a single-channel DS3/E3 Line Interface Unit (LIU) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates framer and line interface functions for telecommunications applications. The device operates within a supply voltage range of 3.135 V to 3.465 V and supports an operating temperature range from 0°C to +70°C. It is housed in a CSBGA-144 package designed for surface mount installation. This component belongs to the DS3177N series and is classified as a telecom interface IC.

Feature Summary

• Integrates DS3/E3 framing and line interface capabilities into a single chip solution
• Supports standard telecommunications signaling protocols for DS3 and E3 networks
• Designed for robust performance in commercial telecommunication environments

Applications

• DS3/E3 network termination equipment
• Telecommunications transmission systems
• Line interface units for digital carrier networks

Procurement Notes

This component is officially listed as discontinued by the manufacturer. Availability is restricted, and it may not be sold in all regions through standard distributors. Verification of current stock status and end-of-life documentation is required before procurement planning. Sourcing should focus on authorized channels or verified surplus suppliers due to the discontinuation status.

Selection Notes

Engineers selecting this part must account for its discontinued status and limited availability. The CSBGA-144 package requires specific PCB layout considerations for surface mount technology. Designers should verify that the 0°C to +70°C industrial temperature range meets their system requirements. Alternative components with similar DS3/E3 LIU functionality should be evaluated for long-term production viability.

Part Context

The DS3177+ is part of the Maxim Integrated portfolio of telecom interface integrated circuits. It serves as a specialized solution for handling DS3 and E3 digital signals in telecommunications infrastructure. The device consolidates complex framing and line driving functions, reducing board space compared to discrete solutions. It represents a segment of legacy high-speed serial interface technology used in established carrier networks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Due to the discontinued status, engineers should consult official replacement guides or contact the manufacturer for recommended upgrades. Generic equivalents may require significant design modifications to accommodate different pinouts or electrical characteristics.