MC100EP56DTG

Overview

The MC100EP56DTG is a dual differential 2:1 multiplexer from the onsemi MC10/100EP series, designed for low skew clock or skew-sensitive signal multiplexing. It operates with a supply voltage range of 3.0V to 5.5V in PECL mode (VEE=0V) or -3.0V to -5.5V in NECL mode (VCC=0V). The device features a typical propagation delay of 360ps and supports maximum operating frequencies exceeding 3GHz. It includes internally generated VBB pins for biasing and AC-coupled input re-biasing, requiring decoupling via 0.01μF capacitors. The component is housed in a 20-TSSOP package.

Feature Summary

• Features a differential data path architecture optimized for minimal skew in high-speed signal routing applications.
• Includes dedicated VBB pins that generate internal reference voltages for switching references and AC-coupled input re-biasing.
• Provides separate and common select inputs to accommodate distinct data paths and random logic requirements.
• Incorporates temperature compensation mechanisms within the 100-series design to maintain performance stability.

Applications

• Low skew clock distribution systems
• Skew-sensitive signal multiplexing
• High-frequency data path selection

Procurement Notes

Verify the specific suffix 'DTG' corresponds to the TSSOP-20 tube packaging configuration as documented. Confirm RoHS compliance status through official manufacturer declarations. Ensure the design accounts for the requirement to decouple VBB and VCC pins using 0.01μF capacitors and limits current sources or sinks to 0.5mA during operation.

Selection Notes

Select this component when differential signal integrity and low skew are critical compared to single-ended alternatives. The inclusion of VBB pins simplifies biasing for AC-coupled interfaces. Verify compatibility with existing ECL/PECL power rails, noting the flexibility between positive and negative supply configurations. Consider the 3GHz frequency capability against system bandwidth requirements.

Part Context

This device belongs to the MC10/100EP family of high-speed ECL logic components. The 100-series designation indicates enhanced features such as temperature compensation compared to the base 10-series. It serves as a digital switch for differential signals, distinct from standard logic gates or buffers, focusing on precise signal path selection in high-speed digital environments.

Replacement Considerations

MC10EP56DTG is an alternative within the same functional family but lacks the 100-series temperature compensation. MC100EP56DWG offers the same function in a SOIC-20 package. Note that MC10EP56MNG is discontinued and should not be used for new designs.