SN74LVC08APWTG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC08APWTG4 is a 4-channel 2-input AND gate logic IC manufactured by Texas Instruments in 14-TSSOP surface mount packaging. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. The device operates across a 1.65V to 3.6V supply voltage range with low quiescent current and fast propagation delay characteristics suitable for general-purpose logic applications.

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
Max Propagation Delay @ 3.3V, 50pF	3.9ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC08APWTG4 is determined by the following critical parameters: logic type (AND gate), circuit count (4 channels), input count (2 inputs per channel), package type (14-TSSOP), supply voltage range compatibility, output current capability, and operating temperature range. Parts are grouped into two categories based on parametric equivalence and manufacturer recommendation status.

Category 1: Parametric Equivalents (Texas Instruments 74LVC Series) These parts maintain identical electrical specifications and package dimensions as the main part, differing only in packaging format (cut tape, tape & reel, or tube). All operate within 1.65V ~ 3.6V supply range with 1 µA quiescent current and 3.9ns propagation delay.

Category 2: Manufacturer-Recommended Alternatives These parts provide functional equivalence with acceptable parameter variations. The 74LCX series (onsemi) operates at 2V ~ 3.6V minimum supply voltage with higher quiescent current (10 µA) and slightly longer propagation delay (5.5ns). The Nexperia 74LVC08 variants operate at 1.2V ~ 3.6V with higher quiescent current (40 µA) but maintain compatible output current and package footprint.

Parameter Comparison

Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	Product Status
SN74LVC08APWTG4	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Discontinued
SN74LVC08APWR	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active
SN74LVC08APWRG3	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active
SN74LVC08APWT	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active
74LCX08MTCX	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active
74LVC08ADB,112	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-SSOP	Obsolete
74LVC08APW,118	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-TSSOP	Active
MC74LCX08DTG	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active
MC74LCX08DTR2G	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active

Engineering Selection Recommendations

First Priority: Texas Instruments 74LVC Series (SN74LVC08APWR, SN74LVC08APWRG3, SN74LVC08APWT)

These parts are direct parametric equivalents with identical electrical performance and 14-TSSOP package compatibility. All three maintain active product status with ROHS3 compliance and unlimited moisture sensitivity level. Selection among these three depends on packaging format availability: SN74LVC08APWR (cut tape & Digi-Reel), SN74LVC08APWRG3 (tape & reel), or SN74LVC08APWT (tape & reel). Inventory availability is substantial across all variants (197,968 pcs, 7,436 pcs, and 5,039 pcs respectively).

Secondary Priority: Nexperia 74LVC08APW,118

This part maintains the 74LVC series electrical characteristics with active product status and ROHS3 compliance. The 14-TSSOP package footprint is identical to the main part. The extended supply voltage range (1.2V ~ 3.6V) and higher quiescent current (40 µA) represent acceptable trade-offs for applications not requiring the lower voltage threshold of the original part. Inventory of 17,712 pcs supports production requirements.

Tertiary Priority: onsemi 74LCX Series (74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G)

These parts provide functional equivalence with acceptable parameter variations. The 2V minimum supply voltage requirement eliminates suitability for applications requiring operation below 2V. The 10 µA quiescent current and 5.5ns propagation delay represent measurable increases from the original specification. Operating temperature range is reduced to -40°C ~ 85°C. These parts are suitable only for applications where the original supply voltage and temperature specifications are not critical. All three maintain active status with ROHS3 compliance.

Not Recommended: Nexperia 74LVC08ADB,112

This part carries obsolete product status and should not be selected for new designs or ongoing production.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC08APWR be used as a direct replacement for SN74LVC08APWTG4?

A: Yes. SN74LVC08APWR is a parametric equivalent with identical electrical specifications, logic configuration, and 14-TSSOP package dimensions. The only difference is packaging format (cut tape & Digi-Reel versus the original's tube packaging). No circuit modifications are required.

Q: What is the difference between SN74LVC08APWR, SN74LVC08APWRG3, and SN74LVC08APWT?

A: All three parts are electrically identical with matching 14-TSSOP packages. The differences are in packaging format: SN74LVC08APWR is supplied in cut tape and Digi-Reel format, while SN74LVC08APWRG3 and SN74LVC08APWT are supplied in tape & reel format. Selection depends on your procurement and assembly process requirements.

Q: Can onsemi 74LCX08 parts replace the SN74LVC08APWTG4?

A: Functional replacement is possible with design considerations. The 74LCX08 series operates at 2V ~ 3.6V supply voltage, which eliminates compatibility with applications requiring operation below 2V. Quiescent current is 10 times higher (10 µA versus 1 µA), and propagation delay is 40% longer (5.5ns versus 3.9ns). Operating temperature range is also reduced to -40°C ~ 85°C. These parts are suitable only when the original voltage and temperature specifications are not required.

Q: Why is the Nexperia 74LVC08ADB,112 not recommended?

A: This part carries obsolete product status, indicating it is no longer manufactured or supported. New designs and production should not depend on obsolete components.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), meeting current environmental and reliability standards.

Q: What is the significance of the 14-TSSOP package specification?

A: The 14-TSSOP package is a thin shrink small outline package with 0.173" width and 4.40mm body width. All recommended substitutes maintain this identical package footprint, ensuring direct PCB compatibility without layout modifications. The Nexperia 74LVC08ADB,112 uses 14-SSOP (0.209" width, 5.30mm body), which is not footprint-compatible.

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

A: Yes, provided your application does not require the lower voltage threshold (1.65V) or extended temperature range (-40°C ~ 125°C) of the original part. If your design operates above 2V and within -40°C ~ 85°C, onsemi 74LCX08 parts are interchangeable with Texas Instruments and Nexperia 74LVC parts. However, mixing parts with different quiescent current and propagation delay specifications may affect overall system power consumption and timing margins.

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