MC10H158FN

Overview

The MC10H158FN is a quad two-channel multiplexer with common input select, belonging to the MECL 10H family. It functions as a non-inverting logic device compatible with the standard MECL 10K family but offers improved propagation delay without increasing power-supply current. The component operates on a single negative supply voltage ranging from -4.94V to -5.46V (VEE = -5.2V ±5%). It features a typical propagation delay of 1.5 ns and typical power dissipation of 197 mW. The device provides an improved noise margin of 150 mV over the operating voltage and temperature range.

Feature Summary

• Provides four independent two-to-one multiplexing channels sharing a common select line for synchronized switching operations.
• Delivers high-speed signal routing with significantly reduced propagation delay compared to legacy MECL 10K equivalents.
• Ensures stable operation through voltage compensation and enhanced noise margins across varying environmental conditions.

Applications

• High-speed data routing in telecommunications systems
• Signal selection in advanced computer architecture
• Multiplexing applications requiring MECL 10K compatibility

Procurement Notes

Verify that the specific procurement order matches the FN suffix to ensure the 20-lead PLCC package configuration. Confirm whether lead-free or standard packaging is required, as ordering options include both variants. Check the datasheet for detailed shipping quantities associated with rails versus tape and reel formats to align with assembly requirements.

Selection Notes

Select this component when a quad multiplexer with common select functionality is required within a MECL environment. It serves as a direct functional replacement for MECL 10K parts while offering superior speed characteristics. Ensure the design supports the necessary negative supply voltage and thermal management for the specified power dissipation levels.

Part Context

This device is part of the MECL 10H series by onsemi, designed to bridge performance gaps between older logic families and modern high-speed requirements. It maintains pinout compatibility with established standards while delivering faster switching speeds. The product line emphasizes reliability and electrical stability for demanding digital signal processing tasks.

Replacement Considerations

The MC10H158 acts as a functional and pinout duplication of the standard MECL 10K family part. Designers replacing legacy components should verify that the system accommodates the specific voltage levels and interface characteristics defined for the MECL 10H series.

FAQ

How does the MC10H158 compare to the MECL 10K family?

It is a functional and pinout duplication of the standard MECL 10K family part, featuring a 100% improvement in propagation delay with no increase in power-supply current.

What is the function of the SELECT pin?

A high level on the SELECT pin enables inputs D00, D10, D20, and D30, while a low level enables inputs D01, D11, D21, and D31.