74HC4075DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC4075DB,112 is a 3-channel OR gate logic integrated circuit manufactured by NXP USA Inc. in a 14-SSOP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 74HC series OR gate provides standard logic gating functionality across industrial and commercial applications requiring 2V to 6V supply operation.

Substiute Parts

74HC4075DB,112

NXP USA Inc.In Stock: 96374HC4075DB,112 Datasheet

Current PartRFQ

CD74HC4075PW

Texas InstrumentsIn Stock: 1480CD74HC4075PW Datasheet

MFR RecommendedRFQ

CD74HC4075PWR

Texas InstrumentsIn Stock: 3695CD74HC4075PWR Datasheet

MFR RecommendedRFQ

CD74HC4075PWT

Texas InstrumentsIn Stock: 4027CD74HC4075PWT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HC4075DB,112 are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical logic functionality (3-channel OR gate with 3 inputs per channel), supply voltage range (2V ~ 6V), quiescent current (2 µA max), output current specifications (5.2mA), input logic levels, and propagation delay (17ns @ 6V, 50pF).

Mechanical Compatibility: Substitute parts use 14-TSSOP packaging, which differs from the original 14-SSOP package. The 14-TSSOP package (0.173" width, 4.40mm) provides equivalent pinout and surface mount compatibility with different physical dimensions compared to the 14-SSOP (0.209" width, 5.30mm).

Compliance & Certification: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory equivalence.

Qualified Substitutes:

• CD74HC4075PW (Texas Instruments, Discontinued at DiGi Electronics)
• CD74HC4075PWR (Texas Instruments, Active)
• CD74HC4075PWT (Texas Instruments, Obsolete)

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CD74HC4075PWR

The CD74HC4075PWR is the preferred substitute for the 74HC4075DB,112. This Texas Instruments part maintains active product status, ensuring long-term availability and supply chain stability. The extended operating temperature range (-55°C ~ 125°C) provides broader environmental coverage compared to the original part (-40°C ~ 125°C). All electrical parameters remain identical, and ROHS3 compliance with MSL Level 1 certification ensures regulatory and environmental compatibility.

Secondary Recommendation: CD74HC4075PW

The CD74HC4075PW offers electrical equivalence but carries discontinued status at DiGi Electronics, limiting future availability. This part is suitable for applications where immediate stock is available but should not be selected for new designs requiring long-term supply assurance.

Tertiary Option: CD74HC4075PWT

The CD74HC4075PWT is obsolete and should be avoided for new applications. This part is listed only for reference in legacy system maintenance where existing inventory exists.

Package Consideration:

All Texas Instruments substitutes use 14-TSSOP packaging instead of the original 14-SSOP. While pinout compatibility is maintained, PCB layout modifications may be required due to different package dimensions (0.173" vs 0.209" width). Verify footprint compatibility with your PCB design before implementation.

Frequently Asked Questions (FAQ)

Q: Are the CD74HC4075 parts from Texas Instruments electrically identical to the NXP 74HC4075DB,112?

A: Yes. All substitute parts maintain identical logic functionality, supply voltage range (2V ~ 6V), quiescent current (2 µA), output current (5.2mA), input logic levels, and propagation delay (17ns @ 6V, 50pF). Electrical substitution is direct.

Q: What is the difference between 14-SSOP and 14-TSSOP packaging?

A: Both are 14-pin surface mount packages with identical pinout. The primary difference is physical dimensions: 14-SSOP measures 0.209" width (5.30mm), while 14-TSSOP measures 0.173" width (4.40mm). PCB footprints are not interchangeable without layout modification.

Q: Can I use CD74HC4075PWR as a direct replacement without PCB changes?

A: Electrical substitution is direct. However, the different package type (14-TSSOP vs 14-SSOP) requires PCB footprint verification. If your current PCB is designed for 14-SSOP, the 14-TSSOP package will not fit without layout modification.

Q: Why does CD74HC4075PWR have a wider operating temperature range (-55°C ~ 125°C) than the original part (-40°C ~ 125°C)?

A: The extended lower temperature limit is a specification difference between manufacturers. This provides additional environmental margin and does not affect substitution compatibility.

Q: Which substitute part should I select for new designs?

A: CD74HC4075PWR is the recommended choice for new designs due to active product status, ensuring availability and supply chain continuity. Verify 14-TSSOP package compatibility with your PCB design requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 certification, matching the regulatory status of the original 74HC4075DB,112.