CD74HC4049PW Equivalent & Substitute Parts

Part Overview

The CD74HC4049PW is a 6-element inverting buffer logic integrated circuit manufactured by Texas Instruments in the 74HC series. This device provides push-pull output configuration with a supply voltage range of 2V to 6V and operates across an extended temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical functional specifications and electrical characteristics while offering improved availability through active product status.

Substiute Parts

CD74HC4049PW

Texas InstrumentsIn Stock: 2586CD74HC4049PW Datasheet

Current PartRFQ

CD74HC4049PWR

Texas InstrumentsIn Stock: 8584CD74HC4049PWR Datasheet

MFR RecommendedRFQ

74HC4049PW,118

Nexperia USA Inc.In Stock: 598274HC4049PW,118 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74HC4049PW are qualified based on strict equivalence across the following critical parameters:

Functional Equivalence Criteria:

• Logic type: Buffer, Inverting (6 elements, 1 bit per element)
• Output configuration: Push-Pull
• Output current specifications: 5.2mA high and low
• Supply voltage range: 2V to 6V
• Package type: 16-TSSOP surface mount
• Base product number: 74HC4049

Packaging Variants: Substitutes are available in different packaging formats (Tube versus Tape & Reel) to accommodate various procurement and assembly workflows. The electrical and mechanical specifications remain identical across packaging variants.

Compliance Alignment: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory consistency with the original part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - CD74HC4049PWR (Texas Instruments): This part is the manufacturer-recommended substitute, maintaining identical electrical specifications and operating temperature range (-55°C to 125°C) as the original CD74HC4049PW. Active product status ensures long-term availability and supply chain continuity. Packaging in Tape & Reel format supports automated assembly processes. This selection is appropriate for applications requiring direct functional equivalence with no design modifications.

Alternative Substitute - 74HC4049PW,118 (Nexperia USA Inc.): This part provides functional equivalence with identical electrical characteristics and 16-TSSOP package configuration. The operating temperature range extends to -40°C minimum (versus -55°C for the original), which is suitable for commercial and industrial applications within standard operating conditions. Active product status and Tape & Reel packaging support production requirements. Selection of this part is appropriate when the lower temperature limit of -40°C is acceptable for the application environment.

Compliance Considerations: Both substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory alignment with the original part across all applicable standards.

Frequently Asked Questions (FAQ)

Q: Can CD74HC4049PWR be used as a direct replacement for CD74HC4049PW?

A: Yes. CD74HC4049PWR is electrically and functionally identical to CD74HC4049PW. Both parts share the same logic type (6-element inverting buffer), output configuration (push-pull), current specifications (5.2mA), supply voltage range (2V to 6V), operating temperature range (-55°C to 125°C), and 16-TSSOP package. The primary difference is packaging format (Tape & Reel versus Tube) and active product status.

Q: What is the difference between CD74HC4049PWR and 74HC4049PW,118?

A: Both parts are functionally equivalent with identical logic type, element count, output type, current ratings, and supply voltage specifications. The key difference is the operating temperature minimum: CD74HC4049PWR operates from -55°C to 125°C, while 74HC4049PW,118 operates from -40°C to 125°C. Selection depends on whether the application requires the extended lower temperature range. Both are manufactured in 16-TSSOP packages and supplied in Tape & Reel format.

Q: Why is the original CD74HC4049PW marked as obsolete?

A: Obsolete status indicates the part is no longer in active production. Substitute parts with active status (CD74HC4049PWR and 74HC4049PW,118) provide equivalent functionality and ensure continued availability for new designs and production requirements.

Q: Are there any compatibility issues when substituting these parts?

A: No compatibility issues exist when substituting between these parts. All three parts share identical pin configurations, electrical specifications, and 16-TSSOP package dimensions. Direct PCB-level substitution is possible without design modifications.

Q: What packaging formats are available for these substitute parts?

A: CD74HC4049PW is supplied in Tube packaging. Both substitute parts (CD74HC4049PWR and 74HC4049PW,118) are supplied in Tape & Reel format, which is standard for automated assembly processes. Tape & Reel packaging provides improved handling efficiency for high-volume production.

Q: Do all parts meet the same compliance standards?

A: Yes. CD74HC4049PW, CD74HC4049PWR, and 74HC4049PW,118 are all ROHS3 compliant with MSL Level 1 rating and REACH unaffected status. Regulatory compliance is maintained across all three parts.