SN74AHCT32MPWREP Equivalent & Substitute Parts

Part Overview

The SN74AHCT32MPWREP is a 4-channel 2-input OR gate logic IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This active product operates across a 4.5V to 5.5V supply voltage range with a maximum propagation delay of 7.9ns at 5V with 50pF load. The part is ROHS3 compliant and carries MSL Level 1 (unlimited moisture sensitivity). Equivalent and substitute parts are necessary when the primary part is unavailable, when alternative packaging formats are required, or when sourcing from different manufacturers is preferred while maintaining functional compatibility.

Substiute Parts

SN74AHCT32MPWREP

Texas InstrumentsIn Stock: 1039SN74AHCT32MPWREP Datasheet

Current PartRFQ

74AHCT32PW,118

NXP SemiconductorsIn Stock: 7610474AHCT32PW,118 Datasheet

MFR RecommendedRFQ

74AHCT32T14-13

Diodes IncorporatedIn Stock: 71874AHCT32T14-13 Datasheet

MFR RecommendedRFQ

74VHCT32PW,118

Nexperia USA Inc.In Stock: 335674VHCT32PW,118 Datasheet

MFR RecommendedRFQ

MC74VHCT32ADTR2G

onsemiIn Stock: 2172MC74VHCT32ADTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74AHCT32MPWREP is determined by the following critical parameters: logic type (OR gate), circuit count (4 channels), input count (2 inputs per channel), supply voltage range compatibility, output current capability, propagation delay performance, and package form factor. All substitute parts must maintain the 14-TSSOP package configuration and surface mount mounting type. The supply voltage range, input/output logic levels, and propagation delay specifications define the functional interchangeability boundaries. Parts are grouped by manufacturer while maintaining these core electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance. The 74AHCT32T14-13 from Diodes Incorporated and 74VHCT32PW,118 from Nexperia USA Inc. are direct functional equivalents with identical propagation delay specifications and operating temperature ranges matching or exceeding the original part. The MC74VHCT32ADTR2G from onsemi offers extended supply voltage range capability (2V ~ 5.5V) and improved propagation delay performance (7.5ns), making it suitable for applications requiring lower voltage operation. The 74AHCT32PW,118 from NXP Semiconductors is available in bulk packaging format. Selection should be based on packaging availability, supply chain requirements, and specific application voltage and temperature constraints.

Frequently Asked Questions (FAQ)

Q: Can the 74AHCT32T14-13 replace the SN74AHCT32MPWREP in all applications?

A: The 74AHCT32T14-13 is functionally compatible for applications operating within the -40°C to 125°C temperature range. The original part supports -55°C to 125°C. If your application requires operation below -40°C, the original SN74AHCT32MPWREP or MC74VHCT32ADTR2G must be used.

Q: What is the difference between the 74AHCT and 74VHCT series?

A: Both series are 4-channel 2-input OR gates in 14-TSSOP packages. The 74VHCT series (represented by 74VHCT32PW,118 and MC74VHCT32ADTR2G) supports extended supply voltage ranges. The MC74VHCT32ADTR2G specifically operates from 2V to 5.5V, compared to the 4.5V to 5.5V range of the 74AHCT series.

Q: Are all substitute parts available in the same packaging format?

A: All listed substitute parts use the 14-TSSOP surface mount package. The 74AHCT32PW,118 is supplied in bulk packaging, while others are available in tape and reel format. Verify packaging format availability with your supplier before selection.

Q: What is the significance of the quiescent current difference in the 74AHCT32T14-13?

A: The 74AHCT32T14-13 specifies a maximum quiescent current of 20 µA compared to 2 µA for other parts. This higher quiescent current may impact power consumption in battery-powered or low-power applications. For power-sensitive designs, select parts with 2 µA quiescent current specifications.

Q: Can the MC74VHCT32ADTR2G be used in a 5V-only system?

A: Yes. The MC74VHCT32ADTR2G operates across 2V to 5.5V and is fully compatible with 5V systems. Its extended voltage range provides additional flexibility for mixed-voltage applications.