74HC32T14-13 Equivalent & Substitute Parts

Part Overview

The 74HC32T14-13 is a 4-channel 2-input OR gate logic IC manufactured by Diodes Incorporated in 14-TSSOP surface mount packaging. This component is part of the 74HC logic family and operates across a 2V to 6V supply voltage range with a maximum propagation delay of 15ns at 6V with 50pF load. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level rating.

Substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer improved specifications, or when design requirements necessitate different operating temperature ranges or quiescent current characteristics.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	20 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ V, Max CL	15ns @ 6V, 50pF
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC32T14-13 is determined by the following critical parameters:

Functional Equivalence: All substitute parts must maintain the same logic type (OR Gate), circuit count (4 channels), and input configuration (2 inputs per channel).

Electrical Compatibility: Supply voltage range (2V ~ 6V), output current capability (5.2mA minimum for both high and low states), and input logic level thresholds must be maintained or exceeded.

Timing Performance: Propagation delay specifications must not exceed the original 15ns @ 6V, 50pF. Parts with equal or faster timing are acceptable.

Package Compatibility: All substitutes must use the 14-TSSOP surface mount package with identical pinout and physical dimensions (0.173", 4.40mm Width).

Environmental Compliance: All substitutes must maintain ROHS3 compliance and MSL 1 rating. Operating temperature range may vary based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Packaging	Product Status
74HC32T14-13	Diodes Incorporated	20 µA	15ns	-40°C ~ 125°C	Tape & Reel (TR)	Active
74HC32PW,118	Nexperia USA Inc.	2 µA	15ns	-40°C ~ 125°C	Tape & Reel (TR)	Active
MC74HC32ADTR2G	onsemi	1 µA	13ns	-55°C ~ 125°C	Cut Tape (CT) & Digi-Reel®	Active
MM74HC32MTCX	onsemi	2 µA	17ns	-40°C ~ 85°C	Tape & Reel (TR)	Active
SN74HC32PWR	Texas Instruments	2 µA	17ns	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	Active
SN74HC32PW	Texas Instruments	2 µA	17ns	-40°C ~ 85°C	Tube	Discontinued at DiGi Electronics
SN74HC32PWT	Texas Instruments	2 µA	17ns	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Primary Substitutes (Active Status):

The 74HC32PW,118 from Nexperia USA Inc. is a direct functional equivalent with identical propagation delay (15ns) and operating temperature range (-40°C ~ 125°C). This part offers improved quiescent current performance (2 µA vs. 20 µA) and maintains full compatibility with the original specification.

The MC74HC32ADTR2G from onsemi provides superior performance characteristics with the lowest quiescent current (1 µA) and fastest propagation delay (13ns @ 6V, 50pF). This part extends the operating temperature range to -55°C ~ 125°C, making it suitable for applications requiring enhanced low-temperature performance. The Cut Tape & Digi-Reel® packaging offers alternative handling options.

The MM74HC32MTCX from onsemi maintains compatibility with a reduced operating temperature range (-40°C ~ 85°C). This part is suitable for applications not requiring extended high-temperature operation above 85°C.

Secondary Substitutes (Discontinued Status):

The SN74HC32PWR from Texas Instruments remains available in active inventory despite discontinuation status at DiGi Electronics. This part meets all electrical specifications with 2 µA quiescent current and 17ns propagation delay, with operating temperature range of -40°C ~ 85°C.

The SN74HC32PW and SN74HC32PWT from Texas Instruments are discontinued at DiGi Electronics and should be considered only when existing inventory is available and alternative active parts are not suitable.

Compliance Considerations:

All listed substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different operating temperature range?

A: Yes, provided the substitute's operating temperature range encompasses your application's requirements. The MC74HC32ADTR2G extends to -55°C, suitable for wider temperature applications. The MM74HC32MTCX, SN74HC32PWR, SN74HC32PW, and SN74HC32PWT are limited to -40°C ~ 85°C and should only be used if your application does not exceed 85°C.

Q: What is the significance of quiescent current differences between parts?

A: Quiescent current affects power consumption in standby or low-activity states. The 74HC32T14-13 specifies 20 µA maximum, while substitutes range from 1 µA to 2 µA. Lower quiescent current reduces overall system power consumption and heat generation, particularly in battery-powered or power-sensitive applications.

Q: Are all substitute parts pin-compatible with the original 74HC32T14-13?

A: Yes. All listed substitutes use the 14-TSSOP package with identical pinout and physical dimensions (0.173", 4.40mm Width), ensuring direct PCB compatibility without layout modifications.

Q: What packaging options are available for substitutes?

A: The 74HC32T14-13 is supplied in Tape & Reel (TR) packaging. Substitutes are available in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube packaging. Selection depends on your assembly process and volume requirements.

Q: How do propagation delay differences affect circuit performance?

A: Propagation delay determines the maximum switching speed. The original part specifies 15ns @ 6V, 50pF. The MC74HC32ADTR2G offers 13ns (faster), while MM74HC32MTCX, SN74HC32PWR, SN74HC32PW, and SN74HC32PWT specify 17ns (slower). Faster parts provide timing margin; slower parts remain compatible if your circuit timing budget accommodates the additional delay.

Q: Are discontinued parts still available for purchase?

A: The SN74HC32PW and SN74HC32PWT are discontinued at DiGi Electronics but may have existing inventory available through other channels. Active parts (74HC32PW,118, MC74HC32ADTR2G, MM74HC32MTCX, SN74HC32PWR) are recommended for new designs and ongoing production.

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