74AHCT32T14-13 Equivalent & Substitute Parts

Part Overview

The 74AHCT32T14-13 is a 4-channel 2-input OR gate logic IC manufactured by Diodes Incorporated in 14-TSSOP surface mount packaging. This part is currently active in production with 657 units in stock. The 74AHCT32 series operates within the 4.5V to 5.5V supply voltage range and is designed for general-purpose digital logic applications requiring OR gate functionality. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for compatible logic families with enhanced performance characteristics.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	20 µA
Current - Output High, Low	8mA, 8mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ 5V, 50pF	7.9ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74AHCT32T14-13 is determined by the following critical parameters:

Logic function: 4-channel 2-input OR gate
Package type: 14-TSSOP surface mount
Supply voltage range: 4.5V ~ 5.5V (or compatible extended range)
Output drive capability: 8mA minimum
Propagation delay: 7.9ns maximum at 5V, 50pF load
Operating temperature range: -40°C to 125°C minimum
RoHS3 compliance and MSL Level 1 rating

Substitute parts must maintain functional equivalence (same logic gate configuration and pin count) and electrical compatibility within the specified voltage and temperature ranges. Parts from different manufacturers (NXP Semiconductors, onsemi, Texas Instruments) are included when they meet these core requirements. Packaging format variations (Tape & Reel, Bulk, Cut Tape, Tube) are acceptable substitutes provided the electrical specifications remain within tolerance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Max Propagation Delay @ 5V, 50pF	Operating Temperature	Package / Case	Packaging	Product Status	Inventory
74AHCT32T14-13	Diodes Incorporated	74AHCT	4.5V ~ 5.5V	20 µA	7.9ns	-40°C ~ 125°C	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	657 Pcs
74AHCT32PW,118	NXP Semiconductors	74AHCT	Not specified	Not specified	Not specified	Not specified	Not specified	Bulk	Active	76061 Pcs
MC74VHCT32ADTR2G	onsemi	74VHCT	2V ~ 5.5V	2 µA	7.5ns	-55°C ~ 125°C	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	2139 Pcs
SN74AHCT32PWR	Texas Instruments	74AHCT	4.5V ~ 5.5V	2 µA	7.9ns	-40°C ~ 85°C	14-TSSOP (0.173", 4.40mm Width)	Cut Tape (CT) & Digi-Reel®	Active	3870 Pcs
SN74AHCT32PW	Texas Instruments	74AHCT	4.5V ~ 5.5V	2 µA	7.9ns	-40°C ~ 85°C	14-TSSOP (0.173", 4.40mm Width)	Tube	Discontinued at DiGi Electronics	3986 Pcs
SN74AHCT32QPWRG4Q1	Texas Instruments	74AHCT	4.5V ~ 5.5V	2 µA	7.9ns	-40°C ~ 125°C	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	4630 Pcs
SN74AHCT32QPWRQ1	Texas Instruments	74AHCT	4.5V ~ 5.5V	2 µA	7.9ns	-40°C ~ 125°C	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	4645 Pcs

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

SN74AHCT32QPWRQ1 and SN74AHCT32QPWRG4Q1 from Texas Instruments are direct functional equivalents with identical electrical specifications to the 74AHCT32T14-13. Both parts maintain the 4.5V ~ 5.5V supply voltage range, 7.9ns propagation delay, and extend the operating temperature range to -40°C ~ 125°C. Both are AEC-Q100 qualified automotive-grade parts in active production status with Tape & Reel packaging. These parts are suitable for applications requiring extended temperature operation and automotive qualification.

SN74AHCT32PWR from Texas Instruments is functionally equivalent with matching supply voltage and propagation delay specifications. This part operates within -40°C ~ 85°C temperature range and is available in Cut Tape & Digi-Reel® packaging format. It is suitable for standard industrial applications where the reduced upper temperature limit is acceptable.

Alternative Substitute (Extended Voltage Range):

MC74VHCT32ADTR2G from onsemi operates across an extended supply voltage range of 2V ~ 5.5V, providing compatibility with lower voltage systems. This part delivers superior quiescent current performance (2 µA versus 20 µA) and slightly faster propagation delay (7.5ns). Operating temperature range extends to -55°C, providing broader environmental coverage. The 14-TSSOP package matches the primary part. This substitute is appropriate when lower voltage operation or reduced power consumption is required.

Secondary Substitute (Limited Data):

74AHCT32PW,118 from NXP Semiconductors is listed as a direct substitute but lacks detailed electrical specifications in the provided data. This part is available in bulk packaging with high inventory (76061 units). Verification of electrical parameters against design requirements is necessary before selection.

Discontinued Part:

SN74AHCT32PW from Texas Instruments is discontinued at DiGi Electronics and should not be selected for new designs despite active inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 74AHCT32T14-13 with MC74VHCT32ADTR2G?

A: Yes. Both parts are 4-channel 2-input OR gates in 14-TSSOP packaging. The MC74VHCT32ADTR2G operates across a wider supply voltage range (2V ~ 5.5V versus 4.5V ~ 5.5V) and offers lower quiescent current (2 µA versus 20 µA). The propagation delay is comparable (7.5ns versus 7.9ns). This substitution is valid when the extended voltage range and lower power consumption are beneficial or neutral to the application.

Q: What is the difference between SN74AHCT32QPWRQ1 and SN74AHCT32QPWRG4Q1?

A: Both parts are electrically identical 74AHCT32 OR gates from Texas Instruments with matching specifications. The primary difference is qualification: SN74AHCT32QPWRQ1 carries AEC-Q100 automotive qualification, while SN74AHCT32QPWRG4Q1 carries both AEC-Q100 and additional automotive-grade certifications. Both operate across -40°C ~ 125°C and are available in Tape & Reel packaging. Selection depends on specific automotive qualification requirements.

Q: Why is the 74AHCT32PW,118 from NXP listed as a substitute if specifications are incomplete?

A: The 74AHCT32PW,118 is listed in the substitute database based on functional equivalence (same base product number 74AHCT32 and logic gate configuration). However, incomplete electrical parameter data in the provided information prevents full verification of compatibility. This part should be cross-referenced against the original datasheet before design implementation.

Q: Can I use SN74AHCT32PW as a replacement?

A: SN74AHCT32PW is not recommended for new designs. This part is discontinued at DiGi Electronics, indicating reduced availability and potential supply chain risk. Although inventory is currently available (3986 units), alternative active-status parts such as SN74AHCT32PWR or SN74AHCT32QPWRQ1 are preferred for long-term design reliability.

Q: What packaging formats are available for 74AHCT32 substitutes?

A: Available packaging formats include Tape & Reel (TR), Bulk, Cut Tape (CT) & Digi-Reel®, and Tube. The 74AHCT32T14-13 uses Tape & Reel packaging. Substitutes maintain the same 14-TSSOP physical package across all format options. Packaging format selection depends on assembly process requirements and order quantity.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the primary part specifications.

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