CD74HCT390M Equivalent & Substitute Parts

Part Overview

The CD74HCT390M 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 classified as Last Time Buy, indicating discontinued production with limited availability. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring decade counter functionality with compatible electrical and mechanical specifications.

Substiute Parts

CD74HCT390M

Texas InstrumentsIn Stock: 1711CD74HCT390M Datasheet

Current PartRFQ

CD74HCT390M96

Texas InstrumentsIn Stock: 1406CD74HCT390M96 Datasheet

MFR RecommendedRFQ

74HCT390D,653

Nexperia USA Inc.In Stock: 336474HCT390D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HCT390M is determined by strict equivalence across the following critical parameters:

• Logic Type: Counter, Decade (2 Element, 4 Bit configuration)
• Trigger Type: Negative Edge
• Voltage Supply Range: 4.5 V ~ 5.5 V
• Package / Case: 16-SOIC form factor
• Mounting Type: Surface Mount
• Reset Type: Asynchronous
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute parts maintain functional and electrical equivalence within these parameters. Packaging format variations (Tube versus Tape & Reel) do not affect electrical compatibility but impact procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

CD74HCT390M96 is the primary substitute, manufactured by Texas Instruments with Active product status. This part maintains identical electrical specifications and operating temperature range (-55°C ~ 125°C) as the main part. The difference in packaging format (Tape & Reel versus Tube) does not affect electrical compatibility and is determined by procurement requirements and assembly processes.

74HCT390D,653, manufactured by Nexperia USA Inc., is an alternative substitute with Active product status. This part meets all core functional and electrical requirements. The operating temperature range is narrower (-40°C ~ 125°C versus -55°C ~ 125°C), and the count rate specification is higher (55 MHz versus 27 MHz). Selection of this part is appropriate for applications operating within the -40°C to 125°C temperature window.

Both substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT390M96 be used as a direct replacement for CD74HCT390M?

A: Yes. CD74HCT390M96 is electrically and functionally equivalent. Both parts are manufactured by Texas Instruments with identical logic specifications, voltage supply range (4.5 V ~ 5.5 V), operating temperature range (-55°C ~ 125°C), and 16-SOIC package form factor. The packaging format difference (Tape & Reel versus Tube) does not affect circuit performance.

Q: What is the difference between CD74HCT390M96 and 74HCT390D,653?

A: Both parts are functionally equivalent decade counters with identical core logic specifications. The primary differences are: manufacturer (Texas Instruments versus Nexperia USA Inc.), operating temperature range (CD74HCT390M96 supports -55°C ~ 125°C while 74HCT390D,653 supports -40°C ~ 125°C), and count rate specification (27 MHz versus 55 MHz). Selection depends on application temperature requirements and performance specifications.

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format (Tube versus Tape & Reel) is a procurement and handling specification only. Both formats contain identical die and electrical characteristics. Selection is based on assembly line requirements and inventory management procedures.

Q: Are all substitute parts RoHS compliant?

A: Yes. CD74HCT390M, CD74HCT390M96, and 74HCT390D,653 are all ROHS3 compliant with MSL Level 1 rating, meeting standard environmental and regulatory requirements for electronic component manufacturing and deployment.

Q: Which substitute should be selected for applications requiring the widest temperature range?

A: CD74HCT390M96 supports the full temperature range of -55°C ~ 125°C, matching the original part specification. This part is recommended for applications requiring extended low-temperature operation below -40°C.