SN74LVC08ADRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC08ADRG4 is a 4-channel 2-input AND gate logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The SN74LVC08ADRG4 operates across a supply voltage range of 1.65V to 3.6V with low quiescent current of 1 µA maximum and propagation delay of 3.9ns at 3.3V with 50pF load. The part is RoHS3 compliant with MSL Level 1 rating.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	1.65V ~ 3.6V
Current - Quiescent (Max)	1 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 @ V, Max CL	3.9ns @ 3.3V, 50pF
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC08ADRG4 are grouped based on strict electrical and mechanical compatibility. All substitutes maintain the core functional requirements: 4-channel 2-input AND gate logic, 14-pin SOIC package footprint, and surface mount technology. The primary substitution criteria are:

Critical Parameters for Substitution:

Logic Type: AND Gate (4 channels, 2 inputs per channel)
Package Footprint: 14-SOIC compatible
Mounting Type: Surface Mount
Supply Voltage Range: Must support minimum 1.65V operation
Output Current: 24mA minimum for both high and low states
Operating Temperature: -40°C to 125°C minimum range

Substitution Categories:

Category 1 - Direct Parametric Equivalents (Texas Instruments 74LVC Series): SN74LVC08ADR, SN74LVC08ADRG3, and SN74LVC08ADT are Texas Instruments parts with identical electrical specifications to the SN74LVC08ADRG4. These parts differ only in packaging format (Cut Tape, Tape & Reel) and product status (Active vs. Discontinued). All maintain 1.65V ~ 3.6V supply voltage, 1 µA quiescent current, and 3.9ns propagation delay.

Category 2 - Parametric Equivalents (Alternative Manufacturers, 74LVC Series): 74LVC08AD,118 (Nexperia) and 74LVC08AS14-13 (Diodes Incorporated) are functionally equivalent 74LVC08 variants from alternative manufacturers. These maintain the same logic function and package footprint. Nexperia's part extends supply voltage to 1.2V minimum and Diodes' part extends to 5.5V maximum, both within acceptable substitution parameters.

Category 3 - Functional Equivalents (74LCX Series): 74LCX08M (Fairchild Semiconductor) and MC74LCX08DG (onsemi) are 74LCX08 variants with identical logic function and package footprint. These parts operate at 2V ~ 3.6V supply voltage (higher minimum than 74LVC series), 10 µA quiescent current, and 5.5ns propagation delay. Operating temperature range is -40°C to 85°C, which is narrower than the main part.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Supply	Current - Quiescent (Max)	Max Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	Packaging Format
SN74LVC08ADRG4	Texas Instruments	Discontinued	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	Digi-Reel
SN74LVC08ADR	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
SN74LVC08ADRG3	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	Tape & Reel
SN74LVC08ADT	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	Tape & Reel
74LVC08AD,118	Nexperia USA Inc.	Active	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-SO	Tape & Reel
74LVC08AS14-13	Diodes Incorporated	Active	1.65V ~ 5.5V	10 µA	3.9ns	-40°C ~ 125°C	14-SO	Tape & Reel
74LCX08M	Fairchild Semiconductor	Active	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-SOIC	Bulk
MC74LCX08DG	onsemi	Active	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-SOIC	Tube

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: SN74LVC08ADR, SN74LVC08ADRG3, or SN74LVC08ADT are the preferred substitutes. All three are Texas Instruments 74LVC08 variants with identical electrical specifications to the discontinued SN74LVC08ADRG4. These parts are Active status with full availability. SN74LVC08ADR offers the highest inventory (40,300 pcs) and is available in Cut Tape and Digi-Reel formats. SN74LVC08ADRG3 and SN74LVC08ADT are available in Tape & Reel format with 42,207 and 1,429 pcs inventory respectively. All three maintain RoHS3 compliance and MSL Level 1 rating.

Secondary Recommendation - Alternative Manufacturer 74LVC Series: 74LVC08AD,118 (Nexperia) and 74LVC08AS14-13 (Diodes Incorporated) are functionally equivalent alternatives. Both are Active status with RoHS3 compliance. Nexperia's part extends the minimum supply voltage to 1.2V and maintains the full -40°C to 125°C temperature range. Diodes' part extends maximum supply voltage to 5.5V and matches the 3.9ns propagation delay of the original part. Both are suitable for applications requiring the full temperature range.

Tertiary Option - 74LCX Series: 74LCX08M (Fairchild) and MC74LCX08DG (onsemi) are functionally equivalent but with performance trade-offs. Both operate at 2V minimum supply voltage (incompatible with 1.65V designs) and have reduced operating temperature range (-40°C to 85°C). Propagation delay increases to 5.5ns. These parts are suitable only for applications that do not require 1.65V operation or the extended 125°C upper temperature limit.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC08ADR as a direct replacement for SN74LVC08ADRG4?

A: Yes. SN74LVC08ADR is a direct electrical equivalent with identical supply voltage (1.65V ~ 3.6V), quiescent current (1 µA), propagation delay (3.9ns @ 3.3V, 50pF), and operating temperature range (-40°C ~ 125°C). The difference is packaging format and product status. SN74LVC08ADR is Active status with higher availability.

Q: What is the difference between SN74LVC08ADR, SN74LVC08ADRG3, and SN74LVC08ADT?

A: All three are electrically identical Texas Instruments 74LVC08 parts. The differences are packaging format: SN74LVC08ADR is available in Cut Tape and Digi-Reel, SN74LVC08ADRG3 is Tape & Reel, and SN74LVC08ADT is Tape & Reel. Choose based on your procurement and assembly requirements.

Q: Can I substitute a 74LCX08 part for the SN74LVC08ADRG4?

A: 74LCX08 parts (74LCX08M, MC74LCX08DG) are functionally equivalent but have limitations. The minimum supply voltage is 2V instead of 1.65V, and the operating temperature range is limited to -40°C ~ 85°C instead of -40°C ~ 125°C. Propagation delay is 5.5ns instead of 3.9ns. Use 74LCX08 only if your application does not require 1.65V operation or temperatures above 85°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant. The original SN74LVC08ADRG4 and all recommended substitutes meet RoHS3 requirements.

Q: What is the difference between 14-SOIC and 14-SO packages?

A: Both 14-SOIC and 14-SO refer to 14-pin small outline IC packages with 0.154" (3.90mm) width. These packages are mechanically and electrically compatible for PCB assembly and design purposes.

Q: Which substitute has the best availability?

A: SN74LVC08ADR has the highest inventory at 40,300 pcs. This is the recommended choice for new designs requiring immediate availability.

Q: Can I use 74LVC08AD,118 (Nexperia) in a 1.2V application?

A: Yes. 74LVC08AD,118 supports supply voltage down to 1.2V, lower than the original part's 1.65V minimum. This part is suitable for low-voltage applications. However, quiescent current is 40 µA compared to 1 µA for the original part.

Q: What is MSL Level 1 and why does it matter?

A: MSL (Moisture Sensitivity Level) Level 1 means Unlimited shelf life without moisture control. The original SN74LVC08ADRG4 and all recommended Texas Instruments and Diodes substitutes have MSL Level 1, requiring no special moisture handling during storage or assembly.

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