DS21354LC1+

Telecom Overview

The DS21354LC1+ is a single-chip transceiver designed for E1 line interface applications. It operates on a 3.3V supply and supports data rates of 1.544 Mb/s with one channel. The device functions within a temperature range of 0°C to +70°C and utilizes a 100-pin LQFP package measuring 14mm x 14mm. Electrical specifications include a minimum operating voltage of 3.135 V and a maximum of 3.465 V. It integrates clock/data recovery, jitter attenuation, and framer capabilities compliant with ITU-T G.703 standards.

Telecom Feature Summary

• Complete E1 (CEPT) PCM-30/ISDN-PRI transceiver functionality
• On-board long- and short-haul line interface for clock/data recovery and waveshaping
• Integral HDLC controller with 64-byte buffers configurable for Sa bits, DS0, or sub-DS0 operation
• Dual two-frame elastic store slip buffers connecting to asynchronous backplanes up to 8.192MHz

Telecom Applications

• E1 Line Interface Units (LIUs)
• Telecom Interface ICs
• Short-haul and long-haul network connections

Telecom Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm the specific suffix 'LC1+' matches the required 3.3V supply and commercial temperature grade. Check for RoHS compliance documentation and ensure the package type aligns with PCB design constraints before finalizing orders.

Telecom Selection Notes

Select this model for E1 applications requiring 3.3V power supplies. Ensure the operational environment stays within the 0°C to +70°C range. Verify that the 100-pin LQFP footprint fits the target board layout. Consider the DS21354LN variant if extended industrial temperature ranges are necessary.

Telecom Part Context

This component belongs to the DS21354/DS21554 series of single-chip transceivers manufactured by Analog Devices / Maxim Integrated. It serves as an upward-compatible successor to earlier models like the DS2153 and DS2154, retaining software compatibility while adding features such as an integrated HDLC controller and JTAG boundary scan architecture.

Telecom Replacement Considerations

The DS21354L is a pin-compatible alternative within the same series. For extended temperature requirements, consider the DS21354LN. The DS21554 offers identical functionality but operates at 5V.