CD74AC652M Equivalent & Substitute Parts

Part Overview

The CD74AC652M is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data transmission with 3-state output capability. This 24-SOIC surface mount component operates across a supply voltage range of 1.5V to 5.5V and supports operating temperatures from -55°C to 125°C. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and field replacements.

Substiute Parts

CD74AC652M

Texas InstrumentsIn Stock: 1062CD74AC652M Datasheet

Current PartRFQ

CD74AC652M96

Texas InstrumentsIn Stock: 799CD74AC652M96 Datasheet

MFR RecommendedRFQ

MC74AC652DWR2G

onsemiIn Stock: 767MC74AC652DWR2G Datasheet

MFR RecommendedRFQ

CD74AC646M

Texas InstrumentsIn Stock: 1382CD74AC646M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74AC652M are classified based on the following substitution criteria:

Primary Substitution Criteria:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Output Current: 24mA (High and Low)
• Package / Case: 24-SOIC
• Mounting Type: Surface Mount
• Series: 74AC

Manufacturer Recommended Substitutes maintain identical electrical specifications and packaging, differing only in packaging format (Tube vs. Tape & Reel) or manufacturer source.

Parametric Equivalents provide functionally equivalent performance within the same logic family but may have different base product numbers while maintaining core transceiver functionality.

Parameter Comparison

Engineering Selection Recommendations

CD74AC652M96 is the primary recommended substitute. This part is manufactured by Texas Instruments with identical electrical specifications and operating parameters. The only difference is packaging format: CD74AC652M96 is supplied in Tape & Reel format versus Tube format for the original part. Product status is Active, ensuring continued availability. This substitute is suitable for direct replacement in new designs and production runs.

CD74AC646M is a parametric equivalent offering identical electrical performance and operating temperature range. Both parts are manufactured by Texas Instruments and maintain ROHS3 compliance with MSL 1 rating. The base product number differs (74AC646 versus 74AC652), but functional characteristics remain equivalent for transceiver applications requiring 8-bit non-inverting operation with 3-state output.

MC74AC652DWR2G is a manufacturer-alternative substitute from onsemi. This part maintains identical logic type, element count, bit width, and output current specifications. However, the operating temperature range is narrower (-40°C to 85°C versus -55°C to 125°C), and the moisture sensitivity level is higher (MSL 3 versus MSL 1). Product status is Obsolete. This substitute is applicable only for applications where the reduced temperature range and higher moisture sensitivity are acceptable.

Frequently Asked Questions (FAQ)

Q: Can CD74AC652M96 be used as a direct replacement for CD74AC652M?

A: Yes. CD74AC652M96 is electrically and functionally identical to CD74AC652M. The difference is packaging format: CD74AC652M96 uses Tape & Reel packaging while CD74AC652M uses Tube packaging. Both are manufactured by Texas Instruments with identical specifications, making this a direct substitute for both new production and field replacement applications.

Q: What are the key differences between CD74AC652M and MC74AC652DWR2G?

A: Both parts share identical logic type, element count, bit width, and output current specifications. The primary differences are: (1) Operating temperature range is narrower for MC74AC652DWR2G (-40°C to 85°C versus -55°C to 125°C); (2) Moisture sensitivity level is higher (MSL 3 versus MSL 1); (3) Supply voltage range is slightly wider (2V to 6V versus 1.5V to 5.5V); (4) Product status is Obsolete. This substitute is suitable only for applications with relaxed temperature and moisture requirements.

Q: Is CD74AC646M functionally equivalent to CD74AC652M?

A: Yes. CD74AC646M is a parametric equivalent with identical electrical performance. Both parts are 1-element, 8-bit non-inverting transceivers with 3-state output, 24mA output current, and identical operating temperature range (-55°C to 125°C). The base product number differs, but functional characteristics are equivalent for transceiver applications.

Q: What is the significance of the Last Time Buy status for CD74AC652M?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life production. This means the part will no longer be manufactured after a specified date. Identifying and qualifying substitute parts is necessary to ensure design continuity and maintain component availability for future production runs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. CD74AC652M, CD74AC652M96, MC74AC652DWR2G, and CD74AC646M are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies components in plastic tubes suitable for manual handling and small-quantity applications. Tape & Reel packaging supplies components on continuous tape wound on reels, optimized for automated assembly equipment and high-volume production. Electrical and functional specifications remain identical; packaging format selection depends on production methodology and volume requirements.