74HC32DB,112 OR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC32DB,112 is a 4-channel 2-input OR gate logic IC manufactured by Nexperia USA Inc. in 14-SSOP surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74HC series OR gate remains functionally relevant across industrial, consumer, and embedded applications requiring basic logic operations at CMOS voltage levels.

Substiute Parts

74HC32DB,112

Nexperia USA Inc.In Stock: 109174HC32DB,112 Datasheet

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74HC32PW,118

Nexperia USA Inc.In Stock: 880174HC32PW,118 Datasheet

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MC74HC32ADTR2G

onsemiIn Stock: 10508MC74HC32ADTR2G Datasheet

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MM74HC32MTCX

onsemiIn Stock: 1748MM74HC32MTCX Datasheet

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SN74HC32DBR

Texas InstrumentsIn Stock: 3228SN74HC32DBR Datasheet

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SN74HC32PW

Texas InstrumentsIn Stock: 1986SN74HC32PW Datasheet

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SN74HC32PWR

Texas InstrumentsIn Stock: 8189SN74HC32PWR Datasheet

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SN74HC32PWT

Texas InstrumentsIn Stock: 6734SN74HC32PWT Datasheet

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74HC32DB,112

NXP SemiconductorsIn Stock: 1298874HC32DB,112 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC32DB,112 is determined by the following critical parameters:

• Logic Function: All substitutes must implement 4-channel 2-input OR gate functionality
• Voltage Supply Range: All substitutes must operate within 2V to 6V
• Package Compatibility: Substitutes are grouped by package type (14-SSOP or 14-TSSOP)
• Electrical Characteristics: Quiescent current, output current, input logic levels, and propagation delay must remain within acceptable tolerances
• Operating Temperature: Substitutes must support the required temperature range
• Compliance: RoHS3 compliance and REACH unaffected status required

Substitutes are organized into two package families: 14-SSOP (direct footprint replacement) and 14-TSSOP (alternative surface mount package with different pitch). Within each family, multiple manufacturers provide functionally equivalent devices.

Parameter Comparison

Engineering Selection Recommendations

Direct Footprint Replacement (14-SSOP Package)

For applications requiring identical PCB footprint compatibility with the 74HC32DB,112, the SN74HC32DBR from Texas Instruments is the primary active substitute. This part maintains the 14-SSOP package geometry and meets all electrical specifications. The SN74HC32DBR is currently in active production status with established supply chain availability.

Package Migration (14-TSSOP Alternative)

When PCB redesign is acceptable, the 14-TSSOP package family offers multiple active alternatives with improved availability:

• 74HC32PW,118 (Nexperia USA Inc.): Maintains identical electrical performance to the original part with active product status and superior propagation delay characteristics (15ns).
• MC74HC32ADTR2G (onsemi): Offers the fastest propagation delay (13ns) and lowest quiescent current (1 µA), with extended operating temperature range to -55°C.
• SN74HC32PWR (Texas Instruments): Active status with established supply chain and standard propagation delay (17ns).

Compliance and Certification

All listed substitutes maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and consumer applications. Moisture sensitivity level remains at MSL 1 (unlimited) across all alternatives.

Supply Chain Considerations

Parts with active product status (74HC32PW,118, MC74HC32ADTR2G, MM74HC32MTCX, SN74HC32DBR, SN74HC32PWR) are recommended for new designs. Parts marked as discontinued at DiGi Electronics (SN74HC32PW, SN74HC32PWT) may have limited availability through alternative distributors.

Frequently Asked Questions (FAQ)

Q: Can I use a 14-TSSOP package substitute in place of the 14-SSOP 74HC32DB,112?

A: No, without PCB redesign. The 14-SSOP and 14-TSSOP packages have different pin pitches and footprints. The 14-SSOP uses 0.209" width while 14-TSSOP uses 0.173" width. Direct PCB replacement requires the same package type. However, 14-TSSOP alternatives are suitable for new board designs.

Q: What is the difference between the propagation delays listed for different substitutes?

A: Propagation delay (measured at 6V with 50pF load) ranges from 13ns to 17ns across substitutes. The original 74HC32DB,112 specifies 15ns. All values fall within acceptable CMOS logic timing margins for standard applications. Applications with critical timing requirements should verify compatibility with their specific circuit design.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial, consumer, and automotive applications.

Q: Which substitute offers the best performance characteristics?

A: The MC74HC32ADTR2G from onsemi provides the fastest propagation delay (13ns), lowest quiescent current (1 µA), and widest operating temperature range (-55°C to 125°C). This part is suitable for applications requiring enhanced performance margins.

Q: What is the difference between cut tape, tube, and tape & reel packaging?

A: These are distribution formats, not functional differences. Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are automated assembly formats. Tube packaging is for manual handling. All formats contain identical die and electrical performance; selection depends on assembly process requirements.

Q: Can I substitute parts with different operating temperature ranges?

A: Only if your application operates within the substitute's temperature range. The original part supports -40°C to 125°C. Some substitutes (MM74HC32MTCX, SN74HC32DBR, SN74HC32PW, SN74HC32PWT) limit the upper range to 85°C. Verify your application's temperature requirements before selection.