SN74LVC08APWE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC08APWE4 is a 4-channel 2-input AND gate logic IC manufactured by Texas Instruments in 14-TSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates across a 1.65V to 3.6V supply voltage range with low quiescent current and standard TTL-compatible logic levels, serving as a fundamental building block in digital logic applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74LVC08APWE4
Manufacturer	Texas Instruments
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)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SN74LVC08APWE4 is determined by the following critical parameters:

Functional Equivalence: All substitute parts must be 4-channel 2-input AND gates with identical logic functionality.

Electrical Compatibility: Supply voltage range, quiescent current, output drive capability, input logic levels, and propagation delay determine functional interchangeability. Parts with overlapping or extended voltage ranges and compatible timing specifications are suitable substitutes.

Package Compatibility: The 14-TSSOP surface mount package is the primary mechanical constraint. Substitutes in alternative packages (14-SSOP, Tube, Tape & Reel) are electrically equivalent but require PCB layout verification.

Product Status Consideration: Active status parts provide long-term availability and supply chain stability compared to obsolete parts.

The substitute parts are grouped as follows:

Direct Manufacturer Equivalent: 74LVC08AT14-13 (Diodes Incorporated) — Active status, extended voltage range to 5.5V, identical package and pinout.
Manufacturer Recommended Alternatives: 74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G (onsemi) — Active status, 74LCX series with 2V ~ 3.6V supply range, slightly higher propagation delay.
Manufacturer Recommended Alternatives: 74LVC08ADB,112, 74LVC08APW,118 (Nexperia USA Inc.) — Extended supply voltage to 1.2V ~ 3.6V, higher quiescent current, alternative packages available.
Parametric Equivalent: SN74LVC08APW (Texas Instruments) — Same manufacturer, identical electrical specifications, alternative packaging.

Parameter Comparison

Parameter	SN74LVC08APWE4	74LVC08AT14-13	74LCX08MTCX	74LVC08ADB,112	74LVC08APW,118	MC74LCX08DTG	MC74LCX08DTR2G	SN74LVC08APW
Manufacturer	Texas Instruments	Diodes Incorporated	onsemi	Nexperia USA Inc.	Nexperia USA Inc.	onsemi	onsemi	Texas Instruments
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	4	4	4	4	4	4	4	4
Number of Inputs	2	2	2	2	2	2	2	2
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 5.5V	2V ~ 3.6V	1.2V ~ 3.6V	1.2V ~ 3.6V	2V ~ 3.6V	2V ~ 3.6V	1.65V ~ 3.6V
Current - Quiescent (Max)	1 µA	10 µA	10 µA	40 µA	40 µA	10 µA	10 µA	1 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	0.12V ~ 0.8V	0.12V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	1.08V ~ 2V	1.08V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	3.9ns	3.9ns	5.5ns	4.1ns	4.1ns	5.5ns	5.5ns	3.9ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-SSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Product Status	Obsolete	Active	Active	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Extended Supply Range: 74LVC08AT14-13 (Diodes Incorporated) is the primary substitute. It maintains identical electrical specifications and 14-TSSOP packaging while offering active product status and extended supply voltage range to 5.5V. This part provides the highest compatibility for direct PCB substitution.

For Active Status with Identical Electrical Performance: SN74LVC08APW (Texas Instruments) delivers identical electrical specifications to the original part with active product status. This option maintains the same manufacturer and performance characteristics while ensuring long-term availability.

For Cost-Optimized Active Alternatives: 74LVC08APW,118 (Nexperia USA Inc.) and 74LCX08MTCX (onsemi) provide active status with compatible functionality. The Nexperia part extends the supply voltage range to 1.2V ~ 3.6V, while the onsemi 74LCX series operates at 2V ~ 3.6V with slightly higher propagation delay (5.5ns vs. 3.9ns). Both are suitable for applications where the extended lower voltage limit or timing tolerance is acceptable.

For High-Temperature Applications: Parts with -40°C ~ 125°C operating range (SN74LVC08APWE4, 74LVC08AT14-13, 74LVC08ADB,112, 74LVC08APW,118, SN74LVC08APW) are required. The 74LCX series (74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G) are limited to -40°C ~ 85°C and are not suitable for extended temperature applications.

For Low Quiescent Current Applications: SN74LVC08APWE4 and SN74LVC08APW both specify 1 µA maximum quiescent current. Alternatives with 10 µA or 40 µA specifications should be evaluated for power budget impact in battery-powered or ultra-low-power designs.

Compliance and Certification: All listed parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can I use 74LVC08AT14-13 as a direct replacement for SN74LVC08APWE4? A: Yes. The 74LVC08AT14-13 maintains identical logic functionality, electrical specifications, and 14-TSSOP packaging. The extended supply voltage range (1.65V ~ 5.5V vs. 1.65V ~ 3.6V) provides additional design flexibility without compromising compatibility.

Q: What is the difference between 74LVC and 74LCX series parts? A: Both are 4-channel 2-input AND gates with compatible pinouts and logic levels. The primary differences are supply voltage range (74LVC: 1.65V ~ 3.6V or 1.2V ~ 3.6V; 74LCX: 2V ~ 3.6V), quiescent current (74LVC: 1 µA or 40 µA; 74LCX: 10 µA), propagation delay (74LVC: 3.9ns or 4.1ns; 74LCX: 5.5ns), and operating temperature range (74LVC: -40°C ~ 125°C; 74LCX: -40°C ~ 85°C). Select based on your specific voltage, power, timing, and temperature requirements.

Q: Why is the SN74LVC08APWE4 marked as obsolete? A: Obsolete status indicates the manufacturer has discontinued production. Active alternatives such as 74LVC08AT14-13, 74LVC08APW,118, and SN74LVC08APW provide equivalent or superior specifications with ongoing availability and supply chain support.

Q: Does package type affect electrical performance? A: No. 14-TSSOP and 14-SSOP packages contain identical die and electrical specifications. Package selection is determined by PCB layout, thermal requirements, and manufacturing capabilities. Verify PCB footprint compatibility before substituting between package types.

Q: Can I substitute a part with higher quiescent current? A: Substitution is possible if your power budget accommodates the increase. The original part specifies 1 µA maximum quiescent current. Alternatives with 10 µA or 40 µA specifications will increase standby power consumption proportionally. Evaluate total system power impact before selection.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental regulations equivalent to the original SN74LVC08APWE4.

Q: What packaging options are available for substitutes? A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube packaging. Select based on your procurement volume and assembly process requirements. Electrical specifications remain identical across packaging options.

Q: Is propagation delay critical for my application? A: Propagation delay becomes critical in high-speed digital logic applications. The original part and most 74LVC variants specify 3.9ns ~ 4.1ns at 3.3V with 50pF load. The 74LCX series specifies 5.5ns. If timing margins are tight, verify that the substitute part's propagation delay meets your system requirements.

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