DS3177N+

Overview

The DS3177N+ is a single-channel DS3/E3 Framer and Line Interface Unit (LIU) manufactured by Analog Devices / Maxim Integrated. Designed for telecom interface applications, this component integrates framer functionality with line interface capabilities in a single channel configuration. The device operates within a supply voltage range of 3.135V to 3.465V and supports surface mount installation in a 100-LBGA, CSBGA package measuring 11x11 mm. It functions reliably across an operating temperature range of 0°C to +70°C. The product is classified under Telecom Interface ICs and is currently marked as discontinued by the manufacturer.

Feature Summary

• Integrates DS3/E3 framing and line interface unit (LIU) functions into a single channel architecture
• Supports standard telecom interface protocols for digital transmission systems
• Operates on a dedicated 3.3V nominal power supply rail

Applications

• Telecommunications network infrastructure equipment
• Digital subscriber line (DSL) access multiplexers
• Carrier Ethernet service demarcation devices

Procurement Notes

This component is officially listed as discontinued by Analog Devices / Maxim Integrated. Availability is restricted to existing stock or secondary market sources. Verification of authenticity and condition is critical when sourcing from non-direct channels. Buyers should confirm the specific revision level and packaging type against original design specifications before integration into production cycles.

Selection Notes

Engineers replacing this part must verify pin compatibility and electrical characteristics against alternative LIU solutions. The transition may require schematic adjustments due to the discontinuation status. Reviewing the official datasheet for timing parameters and signal integrity requirements is essential to ensure seamless migration to successor components or compatible interfaces.

Part Context

The DS3177N+ belongs to the DS3177 series of telecom interface integrated circuits. This family focuses on providing compact solutions for DS3 and E3 digital signal processing and line interfacing. The '+' suffix indicates compliance with RoHS standards. The component serves as a specialized interface chip for high-speed data transmission in telecommunications environments.

Replacement Considerations

Public documentation confirms the DS3254N+ as a related discontinued LIU product within the same manufacturer portfolio. No active direct substitute part numbers are verified in the provided source material.