CD74HC390M Equivalent & Substitute Parts

Part Overview

The CD74HC390M is a decade counter logic IC manufactured by Texas Instruments, featuring dual 4-bit negative edge-triggered counters in a 16-SOIC surface mount package. This component is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 74HC390 series provides reliable counting functionality across industrial and commercial temperature ranges with supply voltage flexibility from 2V to 6V.

Substiute Parts

CD74HC390M

Texas InstrumentsIn Stock: 3130CD74HC390M Datasheet

Current PartRFQ

CD74HC390M96

Texas InstrumentsIn Stock: 2884CD74HC390M96 Datasheet

DirectRFQ

MC74HC390ADR2G

onsemiIn Stock: 2262MC74HC390ADR2G Datasheet

DirectRFQ

74HC390D,653

Nexperia USA Inc.In Stock: 3898374HC390D,653 Datasheet

MFR RecommendedRFQ

MC74HC390ADG

onsemiIn Stock: 1208MC74HC390ADG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC390M is determined by strict equivalence across the following critical parameters:

• Logic Type: Counter, Decade (2 elements, 4 bits per element)
• Trigger Type: Negative Edge
• Reset Type: Asynchronous
• Voltage Supply Range: 2V ~ 6V minimum
• Package / Case: 16-SOIC form factor
• RoHS3 Compliance and MSL Level 1 rating

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in count rate, operating temperature range, and packaging format (Tube vs. Tape & Reel) do not affect functional substitutability within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

CD74HC390M96 (Texas Instruments): Direct equivalent with identical electrical specifications and temperature range. Differs only in packaging format (Tape & Reel vs. Tube). Recommended for high-volume production environments requiring reel packaging.

MC74HC390ADR2G (onsemi): Active substitute with higher count rate (50 MHz vs. 35 MHz) and identical temperature range. Tape & Reel packaging. Suitable for applications where increased speed margin is beneficial.

74HC390D,653 (Nexperia USA Inc.): Active substitute with highest count rate (71 MHz) and largest available inventory. Operating temperature minimum of -40°C (vs. -55°C) is acceptable for most commercial and industrial applications. Tape & Reel packaging.

MC74HC390ADG (onsemi): Active substitute with higher count rate (50 MHz) and identical temperature range. Tube packaging matches original CD74HC390M format. Suitable for applications requiring tube-packaged components.

All substitutes maintain ROHS3 compliance and MSL Level 1 rating. Selection should prioritize product status (Active vs. Discontinued), packaging requirements, and inventory availability for your application timeline.

Frequently Asked Questions (FAQ)

Q: Can I substitute CD74HC390M with any of these parts? A: Yes. All listed parts are functionally equivalent within the defined parameter set: decade counter logic, dual 4-bit configuration, negative edge trigger, asynchronous reset, 2V–6V supply, and 16-SOIC package. Differences in count rate and temperature range do not affect substitutability for standard applications.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube packaging is used for lower-volume or manual assembly processes. Tape & Reel packaging is standard for automated pick-and-place assembly. Both formats contain identical components; selection depends on your manufacturing process requirements.

Q: Does the higher count rate of 74HC390D,653 (71 MHz) affect compatibility? A: No. Higher count rate provides additional performance margin and does not compromise compatibility. It is suitable for applications originally designed for the 35 MHz CD74HC390M.

Q: Is the -40°C minimum operating temperature of 74HC390D,653 acceptable? A: For most commercial and industrial applications, -40°C to 125°C is acceptable. If your application requires operation below -40°C, select CD74HC390M96, MC74HC390ADR2G, or MC74HC390ADG, which all support -55°C minimum.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 rating, matching the original CD74HC390M specifications.

Q: Which substitute has the best inventory availability? A: 74HC390D,653 (Nexperia USA Inc.) has the largest inventory at 38,941 pieces, providing the shortest lead time for procurement.