MM74C04MX Equivalent & Substitute Parts

Part Overview

The MM74C04MX is a 6-channel inverter logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This device implements basic logic inversion functionality across six independent channels with single input per channel. The MM74C04MX is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and procurement.

Substiute Parts

MM74C04MX

onsemiIn Stock: 1434MM74C04MX Datasheet

Current PartRFQ

HEF4069UBT,653

Nexperia USA Inc.In Stock: 10868HEF4069UBT,653 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The HEF4069UBT,653 qualifies as a direct substitute for the MM74C04MX based on the following alignment of critical parameters:

• Logic Function: Both devices implement 6-channel inverter logic with identical circuit count and input configuration
• Supply Voltage Range: Both operate across 3V ~ 15V supply voltage specification
• Package Compatibility: Both use 14-SOIC surface mount packaging with identical physical dimensions (0.154", 3.90mm width)
• Operating Temperature Range: The HEF4069UBT,653 supports -40°C ~ 125°C, which encompasses the primary operating window of the MM74C04MX
• Output Drive Capability: The HEF4069UBT,653 provides 3.4mA output current, which is within acceptable substitution parameters for inverter logic applications
• Input Logic Thresholds: Input logic levels are compatible within the specified voltage ranges

Parameter Comparison

Engineering Selection Recommendations

The HEF4069UBT,653 is the qualified substitute for MM74C04MX applications. Selection is based on:

• Product Status Alignment: The HEF4069UBT,653 maintains active production status, ensuring long-term availability and supply chain continuity for designs transitioning from the obsolete MM74C04MX
• Regulatory Compliance: The HEF4069UBT,653 is ROHS3 compliant, meeting current environmental and regulatory requirements
• Functional Equivalence: Identical logic configuration, package form factor, and supply voltage range enable direct substitution in existing PCB layouts
• Performance Characteristics: The HEF4069UBT,653 demonstrates superior propagation delay performance (30ns vs. 60ns), providing timing margin improvement in signal processing applications

Frequently Asked Questions (FAQ)

Q: Can the HEF4069UBT,653 be used as a direct replacement for MM74C04MX in existing designs?

A: Yes. Both devices share identical 14-SOIC packaging, supply voltage range (3V ~ 15V), and 6-channel inverter logic configuration. PCB layout and schematic integration remain unchanged.

Q: What are the differences in output current specifications?

A: The MM74C04MX provides 8mA output current, while the HEF4069UBT,653 provides 3.4mA. The HEF4069UBT,653 is suitable for standard logic-level signal applications. Applications requiring higher output drive current must evaluate load impedance and signal integrity requirements independently.

Q: Are there temperature range considerations for substitution?

A: The MM74C04MX operates from -55°C to 125°C, while the HEF4069UBT,653 operates from -40°C to 125°C. For applications requiring operation below -40°C, the MM74C04MX temperature specification must be maintained through alternative sourcing or design modification.

Q: What is the significance of the propagation delay difference?

A: The HEF4069UBT,653 exhibits 30ns propagation delay at 15V compared to 60ns for the MM74C04MX at 10V. This represents improved timing performance and provides additional margin in time-critical signal processing circuits.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both devices carry MSL 1 (Unlimited) classification, indicating identical moisture handling and storage requirements.