74ALVC32MX OR Gate IC Equivalent & Substitute Parts

Part Overview

The 74ALVC32MX is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ALVC32 series provides low-voltage CMOS logic functionality suitable for applications requiring OR gate operations across 1.65V to 3.6V supply voltage ranges.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	1.65V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	2.8ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74ALVC32MX is determined by strict equivalence across the following critical parameters:

Logic Type: OR Gate with 4 channels and 2 inputs per channel
Voltage Supply Range: 1.65V ~ 3.6V
Current Specifications: Quiescent current ≤ 10 µA; output drive ≥ 24mA
Input Logic Levels: Low 0.7V ~ 0.8V; High 1.7V ~ 2V
Propagation Delay: ≤ 2.8ns @ 3.3V, 50pF load
Operating Temperature: -40°C ~ 85°C
Surface Mount Packaging: 14-SOIC or 14-SO footprint compatibility

Substitute parts are classified into three categories:

Direct Manufacturer Equivalents: Parts with identical electrical specifications and compatible packaging (14-SOIC or 14-SO).

Parametric Equivalents: Parts meeting all electrical specifications with additional qualifications (automotive grade, AEC-Q100 certification).

Similar Parts: Parts with identical electrical performance but different package dimensions that may require PCB layout adjustment.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply	Quiescent Current	Output Drive (High/Low)	Propagation Delay @ 3.3V	Package	Packaging Type	RoHS Status
74ALVC32MX	onsemi	Obsolete	1.65V ~ 3.6V	10 µA	24mA, 24mA	2.8ns	14-SOIC (0.154", 3.90mm)	-	-
74ALVC32D,118	Nexperia USA Inc.	Active	1.65V ~ 3.6V	10 µA	24mA, 24mA	2ns	14-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	ROHS3 Compliant
SN74ALVC32D	Texas Instruments	Active	1.65V ~ 3.6V	10 µA	24mA, 24mA	2.8ns	14-SOIC (0.154", 3.90mm)	Tube	ROHS3 Compliant
SN74ALVC32NSR	Texas Instruments	Active	1.65V ~ 3.6V	10 µA	24mA, 24mA	2.8ns	14-SOIC (0.209", 5.30mm)	Tape & Reel (TR)	ROHS3 Compliant
74ALVC32D-Q100J	Nexperia USA Inc.	Active	1.65V ~ 3.6V	10 µA	24mA, 24mA	2.8ns	14-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	ROHS3 Compliant
SN74ALVC32DR	Texas Instruments	Active	1.65V ~ 3.6V	10 µA	24mA, 24mA	2.8ns	14-SOIC (0.154", 3.90mm)	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (No PCB Modification Required):

Use 74ALVC32D,118 (Nexperia), SN74ALVC32D (Texas Instruments), or SN74ALVC32DR (Texas Instruments). All three parts are active products with identical electrical specifications and 14-SOIC packaging matching the original 74ALVC32MX footprint. All are ROHS3 compliant.

For Automotive Applications:

Use 74ALVC32D-Q100J (Nexperia USA Inc.). This part meets AEC-Q100 automotive qualification requirements while maintaining identical electrical performance and package compatibility.

For Alternative Packaging:

Use SN74ALVC32NSR (Texas Instruments) only if PCB layout can accommodate the wider 14-SOIC package (0.209" vs. 0.154" width). This part is active and ROHS3 compliant but requires design verification for physical fit.

All substitute parts maintain the same logic functionality, voltage supply range, current specifications, and operating temperature range as the original 74ALVC32MX.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ALVC32NSR as a direct replacement for 74ALVC32MX?

A: SN74ALVC32NSR is electrically equivalent but has a different package width (0.209" vs. 0.154"). Physical PCB layout verification is required before substitution. If your PCB footprint is designed for the narrower 0.154" package, this part will not fit without modification.

Q: What is the difference between 74ALVC32D,118 and SN74ALVC32D?

A: Both are direct electrical equivalents with identical specifications. The primary differences are manufacturer (Nexperia vs. Texas Instruments) and packaging format (Tape & Reel vs. Tube). Selection depends on procurement requirements and quantity needs.

Q: Is 74ALVC32D-Q100J suitable for non-automotive applications?

A: Yes. The 74ALVC32D-Q100J meets AEC-Q100 automotive qualification but is fully compatible with standard industrial and commercial applications. It provides the same electrical performance as non-automotive variants.

Q: Why is the propagation delay different between some substitute parts?

A: The 74ALVC32D,118 specifies 2ns propagation delay while others specify 2.8ns. Both values are within acceptable operating parameters for the 74ALVC32 series. The 2ns specification represents faster performance and is suitable for timing-critical applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed (74ALVC32D,118, SN74ALVC32D, SN74ALVC32NSR, 74ALVC32D-Q100J, and SN74ALVC32DR) are ROHS3 compliant. The original 74ALVC32MX does not specify RoHS status due to its obsolete classification.

Q: What packaging options are available for the 74ALVC32 series?

A: Available packaging formats include Tape & Reel (TR), Tube, and Cut Tape (CT) & Digi-Reel®. Selection depends on assembly requirements and order quantities. All maintain the same 14-SOIC or 14-SO footprint.

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