SN74LVC08APWRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC08APWRG4 is a 4-channel AND gate logic IC manufactured by Texas Instruments in 14-TSSOP surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device operates across a 1.65V to 3.6V supply voltage range with low quiescent current and is compliant with RoHS3 and REACH standards.

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 @ 3.3V, 50pF	3.9ns
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 for the SN74LVC08APWRG4 is determined by the following critical parameters:

Functional Equivalence: Logic type (AND Gate), number of circuits (4), and number of inputs (2) must match exactly.

Electrical Compatibility: Supply voltage range, quiescent current, output current ratings, input logic levels, and propagation delay determine functional interchangeability within the circuit design.

Package Compatibility: The 14-TSSOP package footprint is the primary mechanical constraint. Substitutes in alternative packages (14-SSOP) require PCB layout modification.

Thermal and Environmental: Operating temperature range and compliance certifications (RoHS3, REACH) must meet or exceed application requirements.

Substitutes are grouped into two categories:

Parametric Equivalents (Texas Instruments 74LVC series): Identical electrical specifications and 14-TSSOP packaging. These are direct drop-in replacements with no design changes required.

Manufacturer Recommended Alternatives: Parts from onsemi (74LCX series) and Nexperia (74LVC series) that meet functional requirements but may have minor parameter variations requiring design verification.

Parameter Comparison

Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Max Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	Product Status	Packaging Type
SN74LVC08APWRG4	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Discontinued	Tape & Reel
SN74LVC08APWR	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	Cut Tape & Digi-Reel
SN74LVC08APWRG3	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel
SN74LVC08APWT	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel
74LCX08MTCX	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	Cut Tape & Digi-Reel
74LVC08ADB,112	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-SSOP	Obsolete	Tube
74LVC08APW,118	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-TSSOP	Active	Cut Tape & Digi-Reel
74LVC08APW-Q100,11	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel
MC74LCX08DTG	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	Tube
MC74LCX08DTR2G	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	Tape & Reel

Engineering Selection Recommendations

Direct Replacement (No Design Changes):

SN74LVC08APWR, SN74LVC08APWRG3, and SN74LVC08APWT are Texas Instruments 74LVC series parts with identical electrical specifications to the SN74LVC08APWRG4. All three are active products with RoHS3 compliance and unlimited moisture sensitivity rating. Selection among these three depends on packaging preference: Cut Tape & Digi-Reel (APWR) or Tape & Reel (APWRG3, APWT).

Alternative Manufacturers with 14-TSSOP Package:

74LVC08APW,118 and 74LVC08APW-Q100,11 from Nexperia are active products in 14-TSSOP packaging. These parts have a wider supply voltage range (1.2V ~ 3.6V) and higher quiescent current (40 µA) compared to the original part. The automotive-qualified variant (74LVC08APW-Q100,11) includes AEC-Q100 certification. Both are suitable for applications where the original 1.65V minimum supply voltage is not required.

Package Variant (14-SSOP):

74LVC08ADB,112 from Nexperia is obsolete and uses 14-SSOP packaging (0.209", 5.30mm width) instead of 14-TSSOP. This requires PCB layout modification and is not recommended for new designs.

Lower Supply Voltage Tolerance (onsemi 74LCX Series):

74LCX08MTCX and MC74LCX08DTR2G from onsemi have a minimum supply voltage of 2V, which excludes applications requiring operation below 2V. These parts have higher quiescent current (10 µA) and longer propagation delay (5.5ns) compared to the original specification. Operating temperature range is limited to -40°C ~ 85°C. These are suitable only for applications where the 2V minimum supply voltage is acceptable.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC08APWR as a direct replacement for SN74LVC08APWRG4?

A: Yes. Both parts are Texas Instruments 74LVC series with identical electrical specifications, supply voltage range (1.65V ~ 3.6V), quiescent current (1 µA), and propagation delay (3.9ns @ 3.3V, 50pF). The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). No circuit design changes are required.

Q: What is the difference between 14-TSSOP and 14-SSOP packages?

A: 14-TSSOP has a width of 0.173" (4.40mm), while 14-SSOP has a width of 0.209" (5.30mm). These are different footprints and require different PCB layouts. Parts in 14-SSOP packaging cannot be used on boards designed for 14-TSSOP without PCB modification.

Q: Can I use onsemi 74LCX08 series parts instead of Texas Instruments 74LVC08?

A: The onsemi 74LCX08 series (74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G) are functionally equivalent AND gates but have different electrical specifications. The minimum supply voltage is 2V instead of 1.65V, quiescent current is 10 µA instead of 1 µA, and propagation delay is 5.5ns instead of 3.9ns. These parts are suitable only for applications where these parameter differences are acceptable.

Q: Why is the SN74LVC08APWRG4 discontinued?

A: The original part is discontinued at DiGi Electronics. However, equivalent active alternatives from Texas Instruments (SN74LVC08APWR, SN74LVC08APWRG3, SN74LVC08APWT) with identical specifications are available in stock.

Q: What does the "G4" or "G3" suffix mean in the part number?

A: The suffix indicates the tape reel generation or revision level assigned by the manufacturer. Parts with different suffixes (G4, G3) have identical electrical and functional specifications but may differ in packaging format or manufacturing date code. They are interchangeable from an engineering perspective.

Q: Is the Nexperia 74LVC08APW-Q100,11 suitable for automotive applications?

A: Yes. The 74LVC08APW-Q100,11 includes AEC-Q100 automotive qualification. However, it has higher quiescent current (40 µA) and a wider supply voltage range (1.2V ~ 3.6V) compared to the original SN74LVC08APWRG4. Verify that these parameter differences are acceptable for your specific automotive application.

Q: Can I mix different substitute parts in the same design?

A: All Texas Instruments 74LVC series parts (SN74LVC08APWR, SN74LVC08APWRG3, SN74LVC08APWT) have identical electrical specifications and can be used interchangeably. Mixing with Nexperia or onsemi alternatives requires verification that the parameter differences (supply voltage range, quiescent current, propagation delay) do not affect circuit performance.

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