CD4044BM Equivalent & Substitute Parts

Part Overview

The CD4044BM is a CMOS Quad NAND R/S Latch logic integrated circuit manufactured by Texas Instruments. This component functions as a channel IC and is classified within the Logic category. The CD4044BM maintains Active product status and is currently available with 2698 pieces in new original stock inventory.

Identification of equivalent and substitute parts becomes necessary when the CD4044BM reaches end-of-life status, when inventory constraints occur, or when specific packaging or compliance requirements necessitate alternative sourcing. The substitute parts listed maintain functional equivalence while accommodating different packaging formats and compliance certifications.

Substiute Parts

CD4044BM

Texas InstrumentsIn Stock: 2781CD4044BM Datasheet

Current PartRFQ

CD4044BDW

Texas InstrumentsIn Stock: 2038CD4044BDW Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4044BM with the CD4044BDW is based on the following criteria:

Functional Equivalence: Both parts share the identical base product number CD4044 and are manufactured by Texas Instruments, ensuring core functional compatibility as Quad NAND R/S Latch logic devices.

Allowed Substitution Parameters:

• Identical base product designation (CD4044)
• Same manufacturer (Texas Instruments)
• Same logic category classification
• Identical ECCN classification (EAR99)
• Identical HTSUS code (8542.39.0001)
• Both maintain Active product status

Packaging Differentiation: The primary distinction between these parts is packaging format. The CD4044BM utilizes a standard package configuration, while the CD4044BDW is specified in 16-SOIC (0.295", 7.50mm Width) surface mount packaging with tube delivery format.

Compliance Considerations: The CD4044BDW achieves ROHS3 compliance and carries MSL 1 (Unlimited) rating, representing improved environmental and moisture handling characteristics compared to the CD4044BM's RoHS non-compliant status and MSL 3 rating.

Parameter Comparison

Engineering Selection Recommendations

CD4044BDW Selection Criteria:

The CD4044BDW serves as a direct functional substitute for the CD4044BM when surface mount packaging in 16-SOIC format is compatible with the target application. This substitution is appropriate for designs requiring improved environmental compliance.

Compliance Advantages: The CD4044BDW achieves ROHS3 compliance status, whereas the CD4044BM remains RoHS non-compliant. Additionally, the CD4044BDW carries REACH Unaffected designation compared to the CD4044BM's REACH Affected status. These compliance improvements may be mandatory for applications subject to regulatory requirements in specific markets or industries.

Moisture Handling: The CD4044BDW's MSL 1 (Unlimited) rating provides superior moisture tolerance compared to the CD4044BM's MSL 3 (168 Hours) specification. This distinction affects storage, handling, and reflow processing requirements.

Packaging Considerations: Selection of the CD4044BDW requires confirmation that the target PCB design accommodates 16-SOIC surface mount package geometry. The tube packaging format of the CD4044BDW supports automated assembly processes.

Inventory Status: Both parts maintain Active product status with current stock availability (CD4044BM: 2698 pieces; CD4044BDW: 1959 pieces).

Frequently Asked Questions (FAQ)

Q: Can the CD4044BDW directly replace the CD4044BM in existing designs?

A: Functional replacement is supported when the target PCB design accommodates 16-SOIC surface mount packaging. The CD4044BM's original package format must be verified before substitution. Both parts share identical base product designation and manufacturer, ensuring core logic functionality equivalence.

Q: What are the key differences between CD4044BM and CD4044BDW?

A: The primary differences are packaging format (CD4044BDW uses 16-SOIC surface mount versus CD4044BM's unspecified package), RoHS compliance status (CD4044BDW is ROHS3 compliant; CD4044BM is non-compliant), REACH status (CD4044BDW is unaffected; CD4044BM is affected), and moisture sensitivity level (CD4044BDW is MSL 1; CD4044BM is MSL 3).

Q: Are there any electrical performance differences between these parts?

A: Both parts are manufactured by Texas Instruments using the same base product number CD4044. The CD4044BDW specifies electrical parameters including 3V to 18V supply voltage range, 50ns propagation delay, 6.8mA output current capability, and -55°C to 125°C operating temperature range. The CD4044BM does not provide detailed electrical specifications in the available documentation.

Q: What does MSL 3 versus MSL 1 mean for component handling?

A: MSL 3 (168 Hours) indicates the CD4044BM requires reflow processing within 168 hours of moisture exposure. MSL 1 (Unlimited) for the CD4044BDW indicates no time restriction on moisture exposure prior to reflow processing, reducing handling constraints and storage complexity.

Q: Is the CD4044BDW suitable for RoHS-compliant applications?

A: Yes. The CD4044BDW carries ROHS3 compliance certification, making it suitable for applications requiring RoHS compliance. The CD4044BM is RoHS non-compliant and is not appropriate for such applications.

Q: What is the significance of REACH Unaffected status?

A: REACH Unaffected status for the CD4044BDW indicates the component does not contain substances of very high concern (SVHC) listed under REACH regulations. The CD4044BM's REACH Affected status indicates potential presence of regulated substances, requiring additional compliance documentation for certain markets.

Q: Can both parts be used interchangeably in automated assembly?

A: The CD4044BDW's 16-SOIC surface mount package and tube packaging format are designed for automated pick-and-place assembly. The CD4044BM's package format is not specified and must be verified for automated assembly compatibility.