MC10EP57DTR2G

Overview

The MC10EP57DTR2G is a fully differential 4:1 multiplexer from the onsemi 10EP series, designed for high-speed ECL applications. It supports PECL mode with VCC ranging from 3.0 V to 5.5 V (VEE = 0 V) and NECL mode with VEE ranging from -3.0 V to -5.5 V (VCC = 0 V). The device features typical propagation delays of 375 ps and a maximum frequency exceeding 2 GHz. It includes internal input pulldown resistors, safety clamps, and open-input default states where the Q output defaults LOW. Multiple VBB outputs are provided for reference voltage generation or AC coupling rebiasing.

Feature Summary

• Fully differential architecture optimized for low skew clock distribution
• Configurable as either a 4:1 or 2:1 multiplexer via SEL1 pin state
• Integrated safety clamps and open-input default logic for reliability
• Internal VBB reference voltage generation for single-ended interfacing

Applications

• Clock distribution networks requiring low skew performance
• SONET/SDH and Fibre Channel data multiplexing
• High-speed Gigabit Ethernet signal routing
• ATE instrumentation and server/router interconnects

Procurement Notes

Verify the specific ordering suffix DTG versus DTR2G to confirm rail versus tape-and-reel shipping formats. Confirm that the TSSOP-20 package variant is available for new designs, as certain QFN variants are discontinued. Ensure compliance with RoHS standards and lead-free requirements during procurement validation.

Selection Notes

Select this component when differential signaling with minimal skew is required for clock or data paths. Choose between PECL and NECL operating modes based on the system power supply configuration. Consider the internal VBB pins if single-ended inputs must be converted or if AC-coupled signals require rebiasing without external components.

Part Context

This device belongs to the onsemi MC10EP family of ECL logic devices, specifically engineered for high-frequency digital systems. It complements other multiplexers and crosspoint switches in the portfolio by offering robust differential performance. The part is suitable for environments demanding fast switching speeds and reliable operation across industrial temperature ranges.

Replacement Considerations

MC100EP57DTG serves as a temperature-compensated alternative within the same functional family. Verify compatibility regarding thermal characteristics and electrical parameters before substitution. Consult official documentation for any discontinued variants such as the QFN-20 versions.