74LVC32ADB,118 Equivalent & Substitute Parts

Part Overview

The 74LVC32ADB,118 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 74LVC series provides low-voltage CMOS logic functionality suitable for applications requiring OR gate operations across multiple channels with supply voltages ranging from 1.2V to 3.6V.

Substiute Parts

74LVC32ADB,118

Nexperia USA Inc.In Stock: 109074LVC32ADB,118 Datasheet

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74LVC32APW,118

Nexperia USA Inc.In Stock: 392374LVC32APW,118 Datasheet

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SN74LVC32ADB

Texas InstrumentsIn Stock: 2764SN74LVC32ADB Datasheet

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SN74LVC32ADBR

Texas InstrumentsIn Stock: 2830SN74LVC32ADBR Datasheet

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SN74LVC32APWT

Texas InstrumentsIn Stock: 1455SN74LVC32APWT Datasheet

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SN74LVC32AQPWREP

Texas InstrumentsIn Stock: 895SN74LVC32AQPWREP Datasheet

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TC74LCX32FTELM

Toshiba Semiconductor and StorageIn Stock: 1149TC74LCX32FTELM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LVC32ADB,118 is determined by the following critical parameters:

• Logic function: 4-channel 2-input OR gate
• Supply voltage range compatibility: Minimum 1.2V support
• Output current capability: 24mA minimum for both high and low states
• Propagation delay performance: Maximum 3.8ns at 3.3V with 50pF load
• Package compatibility: 14-SSOP or 14-TSSOP surface mount packages
• Operating temperature range: -40°C to 125°C minimum
• RoHS3 compliance and MSL Level 1 rating

Substitute parts are grouped into two categories based on packaging type: 14-SSOP (direct package match) and 14-TSSOP (functionally equivalent with different footprint dimensions). All identified substitutes maintain the core 74LVC32 logic function and meet the electrical performance requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the obsolete 74LVC32ADB,118 in existing designs, SN74LVC32ADBR (Texas Instruments) provides identical 14-SSOP packaging with active product status and ROHS3 compliance. This part maintains the same footprint dimensions and electrical performance specifications.

For new designs or redesigns accepting package changes, SN74LVC32APWT (Texas Instruments) offers 14-TSSOP packaging with improved quiescent current performance (1 µA versus 40 µA) and faster propagation delay (3.6ns versus 3.8ns), while maintaining ROHS3 compliance and active product status.

The 74LVC32APW,118 (Nexperia USA Inc.) provides an active-status alternative in 14-TSSOP packaging from the original manufacturer, with identical supply voltage range and output current specifications.

For applications with relaxed temperature requirements (maximum 85°C), TC74LCX32FTELM (Toshiba Semiconductor and Storage) offers RoHS compliance and active product status in 14-TSSOP packaging.

All identified substitutes maintain the 4-channel 2-input OR gate logic function and are suitable for applications operating within the specified electrical and thermal parameters.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC32APW,118 replace the 74LVC32ADB,118 directly on the PCB?

A: No. The 74LVC32APW,118 uses 14-TSSOP packaging (0.173" width) while the main part uses 14-SSOP packaging (0.209" width). The footprints are not compatible. A PCB redesign is required for this substitution.

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

A: Both are 14-pin surface mount packages with the same pin count and spacing, but differ in body width. 14-SSOP measures 0.209" (5.30mm) wide, while 14-TSSOP measures 0.173" (4.40mm) wide. This affects PCB footprint design and component placement.

Q: Are all substitute parts RoHS3 compliant?

A: All identified substitutes except TC74LCX32FTELM are explicitly ROHS3 compliant. TC74LCX32FTELM is RoHS compliant but not specifically designated as ROHS3.

Q: Which substitute has the best quiescent current performance?

A: SN74LVC32ADBR and SN74LVC32APWT both offer 1 µA maximum quiescent current, compared to 40 µA for the main part. This represents a 40-fold reduction in standby power consumption.

Q: Can TC74LCX32FTELM be used in applications requiring -40°C to 125°C operation?

A: No. TC74LCX32FTELM operates only to 85°C maximum. Applications requiring the full -40°C to 125°C temperature range must use alternative substitutes.

Q: What is the propagation delay difference between substitutes?

A: Propagation delays at 3.3V with 50pF load range from 3.6ns (SN74LVC32ADBR, SN74LVC32APWT) to 5.5ns (TC74LCX32FTELM). The main part specifies 3.8ns. Faster alternatives include SN74LVC32ADBR and SN74LVC32APWT.

Q: Are all substitutes available in active product status?

A: Yes. All identified substitutes have active product status, unlike the main part which is obsolete. This ensures ongoing availability and manufacturer support.