MC10H189M

Overview

The MC10H189M is a Hex Inverter with Enable manufactured by onsemi, housed in a SOEIAJ-16 surface-mount package. It operates within the MECL 10H logic family and functions as a pinout-compatible replacement for standard MECL 10K devices, offering improved propagation delay without increasing power consumption. The device requires dual power supplies: VCC1 at Pin 1, VCC2 at Pin 16, and VEE at Pin 8. Electrical characteristics are specified at VEE = -5.2 V ±5%. Typical propagation delays range from 0.7 ns to 2.3 ns depending on the signal path (Enable vs. Data). Power dissipation is typically 180 mW per package under no-load conditions.

Feature Summary

• Provides hex inverting functionality controlled by a common enable input
• Features voltage compensated design for stable operation across operating ranges
• Offers improved noise margin of 150 mV over the full operating voltage and temperature range
• Maintains compatibility with MECL 10K family while delivering faster switching speeds

Applications

• High-speed digital logic inversion circuits requiring enable control
• MECL 10K system upgrades requiring lower propagation delay
• Data-to-output buffering applications in high-frequency environments

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the MC10H189M designation specifically refers to the SOEIAJ-16 variant. Confirm lead-free status if environmental compliance is mandatory, noting that 'G' suffixes indicate Pb-Free packages. Ensure supply chain sources provide original manufacturer documentation or authorized distributor certificates to validate authenticity and revision level against the DL122/D data book references.

Selection Notes

Select this component when upgrading existing MECL 10K designs to benefit from reduced propagation delay without altering board layout or increasing power budget. Verify that the application supports the required negative VEE supply voltage and current draw specifications. Consider the SOEIAJ-16 package dimensions for PCB footprint compatibility. Evaluate thermal management requirements based on the typical 180 mW power dissipation rating under load conditions.

Part Context

This part belongs to the MECL 10H series, designed as functional duplicates of the legacy MECL 10K family. The MC10H189M specifically utilizes the SOEIAJ-16 case outline 966. It shares logical operations with other inverters in the series but is distinguished by its specific package geometry and manufacturing lot coding. The device maintains backward compatibility with older systems while providing modern performance enhancements.

Replacement Considerations

MC10H189FN serves as a direct replacement using the PLLC-20 package. MC10H189L replaces it using the CDIP-16 ceramic package. MC10H189P replaces it using the PDIP-16 plastic package. All variants share identical electrical characteristics and pinouts.