MC100E158FNG

Overview

The MC100E158FNG is a high-performance 2:1 multiplexer from the onsemi 100E series, designed for 5.0V ECL applications. It operates within a supply voltage range of 4.2 V to 5.7 V and supports both PECL and NECL modes. The device features a propagation delay of 230 ps and is housed in a 28-PLCC surface-mount package. It functions as an enhanced replacement for standard E158 devices, offering superior AC performance and temperature compensation capabilities suitable for demanding signal routing tasks.

Feature Summary

• Provides high-speed data selection with significantly faster propagation delays compared to standard E158 equivalents
• Includes internal temperature compensation to maintain stable performance across varying thermal conditions
• Features integrated input pulldown resistors to simplify circuit design and improve signal stability

Applications

• High-frequency communication systems requiring rapid signal path switching
• Data acquisition systems needing precise timing and low latency
• Complex digital logic circuits utilizing differential ECL signaling standards

Procurement Notes

Verify component authenticity through authorized distributors or certified secondary market suppliers due to potential discontinuation status. Confirm specific lot codes and manufacturing dates against current quality standards. Ensure proper handling procedures are followed given the sensitivity of ECL components to electrostatic discharge during installation and storage.

Selection Notes

Select this component when system requirements demand minimal signal propagation delay and robust thermal stability. The inclusion of temperature compensation makes it suitable for environments with significant fluctuation. Verify that the 28-PLCC package aligns with existing PCB footprint constraints and that the power supply architecture supports the specified 5.0V ECL operating ranges.

Part Context

This device belongs to the MC100E family of high-speed ECL logic components. It serves as a functional upgrade to legacy E158 parts, providing improved AC characteristics while maintaining pin compatibility. The 100E series designation indicates enhanced performance specifications over the standard MC10E variants, targeting applications where signal integrity and speed are critical parameters.

Replacement Considerations

Direct substitutes include the MC10EL58, which shares similar functionality but lacks the temperature compensation feature found in the 100E series. Designers should verify if the absence of thermal compensation affects system reliability in their specific operating environment before substituting.