74HC32DB,118 OR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC32DB,118 is a 4-channel 2-input OR gate logic IC manufactured by Nexperia USA Inc. in a 14-SSOP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The 74HC32 series represents a standard logic gate function across multiple manufacturers, with several active alternatives available that maintain electrical and functional compatibility.

Substiute Parts

74HC32DB,118

Nexperia USA Inc.In Stock: 96774HC32DB,118 Datasheet

Current PartRFQ

74HC32PW,118

Nexperia USA Inc.In Stock: 880174HC32PW,118 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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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC32DB,118 is determined by the following criteria:

Electrical Compatibility Requirements:

• Logic type must be OR Gate with 4 channels and 2 inputs per channel
• Supply voltage range must encompass or match 2V to 6V
• Output current capability must meet or exceed 5.2mA for both high and low states
• Input logic levels must be compatible with the specified thresholds
• Propagation delay must not exceed the application requirements

Mechanical Compatibility Requirements:

• Surface mount technology required
• Package must be either 14-SSOP or 14-TSSOP (both 14-pin SSOP variants with compatible pinouts)
• MSL rating of 1 is acceptable for all substitutes

Compliance Requirements:

• ROHS3 compliance required
• REACH unaffected status required

Substitutes are grouped by package type: 14-SSOP variants maintain identical footprint compatibility, while 14-TSSOP variants offer the same electrical function with a narrower package width (4.40mm vs 5.30mm).

Parameter Comparison

Engineering Selection Recommendations

For Direct Footprint Replacement (14-SSOP): The SN74HC32DBR from Texas Instruments is the primary substitute for the 74HC32DB,118. Both components use the 14-SSOP package with identical 0.209" x 5.30mm dimensions, enabling direct PCB footprint compatibility. The SN74HC32DBR maintains active product status and full ROHS3 compliance. The propagation delay increases from 15ns to 17ns, which remains within typical logic circuit tolerances. The operating temperature range narrows to -40°C to 85°C; verify this meets application requirements if operation above 85°C is needed.

For Package Optimization (14-TSSOP): The 74HC32PW,118 from Nexperia USA Inc. provides the closest electrical match with identical 15ns propagation delay and maintains the full -40°C to 125°C operating range. The 14-TSSOP package is 0.8mm narrower, offering space savings on PCB layouts. This part is actively manufactured with high inventory availability.

The SN74HC32PWR from Texas Instruments offers an alternative 14-TSSOP option with active status and substantial inventory. It accepts the same electrical specifications with 17ns propagation delay and -40°C to 85°C operating range.

For Cost and Availability Optimization: The MM74HC32MTCX from onsemi provides a 14-TSSOP alternative with active status. Verify onsemi supply chain reliability for your production volume and lead time requirements.

All recommended substitutes maintain ROHS3 compliance and MSL rating 1 status, ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can I use a 14-TSSOP package substitute on a PCB designed for 14-SSOP? A: No. While both are 14-pin SSOP variants, the 14-TSSOP is narrower (4.40mm vs 5.30mm). The pinout is identical, but the physical footprint differs. PCB layout must be redesigned for 14-TSSOP packages, or a 14-SSOP substitute such as SN74HC32DBR must be used for direct replacement.

Q: What is the significance of the propagation delay difference between 15ns and 17ns? A: The original 74HC32DB,118 specifies 15ns maximum propagation delay at 6V with 50pF load. Substitutes with 17ns delay add 2ns of additional signal propagation time. For most general-purpose logic applications, this difference is negligible. High-speed timing-critical circuits should verify that the 17ns specification meets setup and hold time requirements.

Q: Does the narrower operating temperature range of -40°C to 85°C affect compatibility? A: The original part operates to 125°C, while most substitutes limit operation to 85°C. If your application requires operation above 85°C, the 74HC32PW,118 from Nexperia maintains the full -40°C to 125°C range. For standard industrial and commercial applications operating within -40°C to 85°C, all listed substitutes are compatible.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting standard environmental and regulatory requirements for electronics manufacturing.

Q: What packaging options are available for the 74HC32 series? A: The 74HC32 base product is available in two surface mount packages: 14-SSOP (0.209" x 5.30mm width) and 14-TSSOP (0.173" x 4.40mm width). Both packages contain identical pinouts and electrical specifications. Selection depends on PCB layout constraints and available inventory.

Q: Which substitute has the best availability? A: The 74HC32PW,118 from Nexperia and SN74HC32PWR from Texas Instruments both show high inventory levels (8763 and 8100 units respectively), providing reliable supply for production quantities.