DS21354L+

Telecom Overview

The DS21354L+ is a single-chip transceiver designed for E1 line interfaces, operating within a supply voltage range of 3.135V to 3.465V and supporting data rates up to 1.544Mb/s. It utilizes a 100-pin LQFP package (14x14mm) suitable for surface mount installation. The device functions as a complete E1 PCM-30/ISDN-PRI transceiver with integrated clock/data recovery, jitter attenuation, and framing capabilities. It operates reliably across an extended temperature range from 0°C to +70°C.

Telecom Feature Summary

• Integrated long- and short-haul line interface for clock/data recovery and waveshaping
• Configurable HDLC controller with 64-byte buffers for Sa bits or DS0 operation
• Dual two-frame elastic store slip buffers for asynchronous backplane connections
• Supports IEEE 1149.1 JTAG boundary scan architecture

Telecom Applications

• E1 Line Interface Units (LIUs)
• PCM-30 and ISDN-PRI Transceivers
• Telecom Interface ICs

Telecom Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the exact temperature range and package variant. Confirm RoHS compliance status through current manufacturer declarations. Check for product discontinuance notifications prior to finalizing procurement plans.

Telecom Selection Notes

Select this component for applications requiring a fully integrated E1 transceiver solution. Ensure the system design accommodates the 3.3V power supply requirements. Verify that the 100-pin LQFP footprint aligns with the target PCB layout constraints.

Telecom Part Context

This device belongs to the DS21354/DS21554 family of single-chip transceivers manufactured by Analog Devices Inc./Maxim Integrated. It serves as an upward-compatible successor to earlier models like the DS2153 and DS2154, retaining original features while adding advanced control and signaling capabilities.

Telecom Replacement Considerations

The DS21354LN is a pin-compatible alternative offering an extended industrial temperature range of -40°C to +85°C.