MC10H189P

Overview

The MC10H189P is a Hex Inverter with Enable manufactured by onsemi in the MECL 10H logic family. It features a common enable input that controls six inverters; outputs are low when enabled high, and perform inversion when enabled low. The device operates within a supply voltage range of -4.94V to -5.46V. Electrical characteristics at VEE = -5.2V include a typical propagation delay of 1.3 ns from data to output and 0.7 ns from enable to output. Power dissipation is typically 180 mW per package under no-load conditions.

Feature Summary

• Provides hex inverting functionality controlled by a single common enable input
• Features improved noise margin of 150 mV over operating voltage and temperature ranges
• Offers functional and pinout compatibility with standard MECL 10K family parts
• Includes voltage compensated design for stable operation

Applications

• High-speed digital signal processing requiring fast propagation delays
• MECL 10K system upgrades requiring improved performance without power increase
• Logic buffering and inversion in differential signaling environments

Procurement Notes

Verify the specific suffix 'P' corresponds to the PDIP-16 plastic dual in-line package configuration. Confirm RoHS compliance status as standard packages may differ from Pb-Free variants. Ensure the ordering part number matches the required lead frame and marking specifications defined in the manufacturer's documentation.

Selection Notes

Select this component for applications requiring MECL 10H speed improvements while maintaining MECL 10K compatibility. The device offers a 100% improvement in propagation delay compared to the standard MECL 10K counterpart without increasing power-supply current. Suitable for designs needing voltage compensated logic with enhanced noise margins.

Part Context

This component belongs to the MECL 10H series, designed as a functional duplication of the MECL 10K family. It provides faster switching speeds while maintaining identical pinouts. The MC10H189 specifically implements a hex inverter structure with an enable control mechanism, distinguishing it from standard inverters lacking control inputs.

Replacement Considerations

MC10H189PG (Pb-Free version)

FAQ

How does the enable input affect the output states?

When the common enable input is in the high state, all outputs are forced low. When the enable input is in the low state, the hex inverting function is provided.

What is the relationship between MC10H189 and MECL 10K?

The MC10H189 is a functional and pinout duplication of the standard MECL 10K family part, offering improved propagation delay and noise margin without an increase in power-supply current.