MC100EP56DW

Overview

The MC100EP56DW is a dual differential 2:1 multiplexer from the onsemi 100EP series, designed for low-skew clock or skew-sensitive signal multiplexing. It features separate and common select inputs for data path and random logic applications. The device includes an internally generated power voltage (VBB) pin for biasing unused differential inputs in single-ended conditions or re-biasing AC-coupled inputs. The 100 series incorporates temperature compensation. It supports PECL mode with VCC ranging from 3.0V to 5.5V (VEE=0V) and NECL mode with VEE ranging from -3.0V to -5.5V (VCC=0V). Typical propagation delay is 360ps, with a maximum operating frequency exceeding 3GHz.

Feature Summary

• Dual differential 2:1 multiplexing architecture optimized for low-skew applications
• Integrated VBB pin for internal bias generation and input reference management
• Temperature-compensated design within the 100EP series
• Input safety clamping with open-default output states for system reliability

Applications

• Low-skew clock signal distribution systems
• High-speed data path switching
• Random logic circuit implementations
• Skew-sensitive signal multiplexing

Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-20 package variant when sourcing. Confirm RoHS compliance status as manufacturing updates may affect environmental declarations. Ensure the design utilizes appropriate decoupling capacitors for the VBB and VCC pins per datasheet requirements. Check for any obsolescence notices or recommended new design alternatives if planning long-term production.

Selection Notes

Select this component for designs requiring differential signal routing with minimal timing skew. The wide supply voltage range accommodates both 3.3V and 5V ECL/PECL environments. Consider the thermal performance of the SOIC-20 package for the specific PCB layout. Verify that the input drive levels match the ECL logic family standards to ensure proper switching thresholds.

Part Context

This device belongs to the onsemi MC10EP/100EP logic family, which specializes in high-speed ECL components. The 100EP series distinguishes itself through temperature compensation features not always present in the base MC10EP line. These devices are engineered for demanding telecommunications and high-performance computing applications where signal integrity and speed are critical constraints.

Replacement Considerations

MC10EP56DTG is a direct functional equivalent in TSSOP-20 packaging. MC100EP56DTR2G offers the same functionality in tape-and-reel format. Cross-reference with NB100LVEL56 for lower voltage compatibility options.