CD74ACT109M Equivalent & Substitute Parts

Part Overview

The CD74ACT109M is a dual JK-type flip-flop logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This component functions as a 2-element JK flip-flop with complementary outputs, positive edge triggering, and Set/Reset control. The CD74ACT109M is currently in Last Time Buy status, indicating limited availability from the original packaging configuration. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this specific logic function.

Substiute Parts

CD74ACT109M

Texas InstrumentsIn Stock: 1866CD74ACT109M Datasheet

Current PartRFQ

CD74ACT109M96

Texas InstrumentsIn Stock: 1633CD74ACT109M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74ACT109M is determined by strict equivalence across the following critical parameters:

• Base Product Number: Both parts must share the 74ACT109 base designation, ensuring identical logic function, pin configuration, and electrical characteristics
• Package Type: Both parts must use the 16-SOIC (0.154", 3.90mm Width) surface mount package to maintain PCB compatibility
• Electrical Specifications: Clock frequency, propagation delay, voltage supply range, output current, and operating temperature must be identical
• Compliance Standards: RoHS3 compliance and MSL rating must match or exceed the original specification

The CD74ACT109M96 qualifies as a direct substitute based on these parameters. The primary difference is packaging format: the original part uses Tube packaging, while the substitute uses Tape & Reel (TR) format. Both formats contain identical die and electrical performance; the difference is in supply and handling method only.

Parameter Comparison

Engineering Selection Recommendations

The CD74ACT109M96 is the direct substitute for the CD74ACT109M. Both parts are manufactured by Texas Instruments with identical electrical performance and pin configuration. The CD74ACT109M96 carries Active product status, ensuring continued availability and support, whereas the original CD74ACT109M is in Last Time Buy status with limited stock.

Selection between these parts should be based on supply chain requirements and packaging handling capabilities. The Tape & Reel format of the CD74ACT109M96 is standard for high-volume automated assembly processes. Both parts meet ROHS3 compliance and carry MSL Level 1 rating, suitable for unlimited shelf life storage without moisture sensitivity concerns.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT109M96 be used as a direct replacement for the CD74ACT109M?

A: Yes. Both parts share identical electrical specifications, pin configuration, and 16-SOIC package dimensions. The only difference is packaging format (Tube versus Tape & Reel). Electrical performance and PCB compatibility are identical.

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

A: Tube packaging supplies components in plastic tubes for manual handling and small-quantity applications. Tape & Reel packaging supplies components on continuous carrier tape for automated pick-and-place assembly. The internal component and electrical characteristics are identical.

Q: Why is the CD74ACT109M marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this specific packaging configuration. The CD74ACT109M96 in Tape & Reel format remains in Active status and is the recommended alternative for continued supply.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 rating, and meet identical environmental and regulatory standards.

Q: What are the critical parameters for substitution compatibility?

A: The 74ACT109 base product number, 16-SOIC package type, 100 MHz clock frequency, 10.3 ns propagation delay, 4.5V–5.5V supply voltage, and -55°C to 125°C operating temperature range must all match. These parameters ensure functional and electrical equivalence.