SN74LVC08APWRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC08APWRE4 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, 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 is suitable for low-voltage logic applications requiring AND gate functionality.

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 of the SN74LVC08APWRE4 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 compatibility, quiescent current specifications, output drive capability, propagation delay performance, and operating temperature range.

Substitute parts are grouped into two categories:

Texas Instruments 74LVC Series (Direct Equivalents): Parts SN74LVC08APWR, SN74LVC08APWRG3, and SN74LVC08APWT maintain identical electrical specifications and 14-TSSOP packaging. These differ only in packaging format (Cut Tape vs. Tape & Reel) and product status. All are active products with superior inventory availability compared to the discontinued SN74LVC08APWRE4.

Cross-Manufacturer Alternatives: Parts from Nexperia (74LVC08APW,118) and onsemi (74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G) provide functional equivalence with 14-TSSOP packaging. These alternatives operate within compatible voltage and temperature ranges but exhibit variations in quiescent current, minimum supply voltage, and maximum operating temperature that must be evaluated for specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Max Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	Product Status	Inventory
SN74LVC08APWRE4	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Discontinued	823 Pcs
SN74LVC08APWR	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	197968 Pcs
SN74LVC08APWRG3	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	7436 Pcs
SN74LVC08APWT	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-TSSOP	Active	5039 Pcs
74LCX08MTCX	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	45555 Pcs
74LVC08APW,118	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-TSSOP	Active	17712 Pcs
MC74LCX08DTG	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	3519 Pcs
MC74LCX08DTR2G	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	2965 Pcs

Engineering Selection Recommendations

Primary Recommendation: SN74LVC08APWR (Texas Instruments 74LVC series) is the preferred substitute. This part maintains identical electrical specifications to the SN74LVC08APWRE4, including supply voltage range (1.65V ~ 3.6V), quiescent current (1 µA), propagation delay (3.9ns @ 3.3V, 50pF), and operating temperature range (-40°C ~ 125°C). The part is active with substantial inventory availability (197,968 pcs), ensuring supply continuity. Packaging differs only in format (Cut Tape & Digi-Reel vs. Tape & Reel), which does not affect electrical performance or PCB assembly compatibility.

Secondary Recommendation: SN74LVC08APWRG3 and SN74LVC08APWT provide identical electrical performance to SN74LVC08APWR with active product status. Selection between these three Texas Instruments variants should be based on packaging format requirements and inventory availability for your procurement timeline.

Alternative Consideration: 74LVC08APW,118 (Nexperia) offers active product status and extended lower voltage operation (1.2V minimum). However, quiescent current is elevated at 40 µA compared to 1 µA for the original part. This alternative is suitable only for applications where the increased quiescent current does not impact power budget requirements.

Not Recommended for Direct Substitution: onsemi 74LCX series parts (74LCX08MTCX, MC74LCX08DTG, MC74LCX08DTR2G) exhibit reduced maximum operating temperature (85°C vs. 125°C), higher quiescent current (10 µA), and slower propagation delay (5.5ns). These parts are suitable only for applications with relaxed temperature and timing requirements.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical package footprint (14-TSSOP, 0.173" × 4.40mm width), ensuring PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC08APWR as a direct replacement for SN74LVC08APWRE4?

A: Yes. SN74LVC08APWR is electrically and functionally identical to SN74LVC08APWRE4. The only difference is packaging format (Cut Tape & Digi-Reel vs. Tape & Reel). Both parts are 14-TSSOP surface mount packages with identical pin configuration, electrical specifications, and performance characteristics.

Q: What is the difference between the Texas Instruments 74LVC variants?

A: SN74LVC08APWR, SN74LVC08APWRG3, and SN74LVC08APWT are electrically identical. Differences are limited to packaging format and supplier packaging method. All three are active products suitable for new designs and production.

Q: Why should I avoid onsemi 74LCX08 parts?

A: The 74LCX08 series operates at a maximum temperature of 85°C, compared to 125°C for the original SN74LVC08APWRE4. Additionally, quiescent current is 10 µA versus 1 µA, and propagation delay is 5.5ns versus 3.9ns. These parts are suitable only for applications with relaxed temperature and timing specifications.

Q: Is the Nexperia 74LVC08APW,118 a suitable substitute?

A: The Nexperia part maintains the same operating temperature range (-40°C ~ 125°C) and package type (14-TSSOP). However, quiescent current is 40 µA compared to 1 µA for the original part. This elevated quiescent current may impact power consumption in battery-powered or low-power applications. Verify power budget compatibility before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 moisture sensitivity rating, matching the original SN74LVC08APWRE4 compliance status.

Q: Will substitute parts work in my existing PCB layout?

A: Yes. All substitute parts use the 14-TSSOP package with identical pin configuration and footprint dimensions (0.173" × 4.40mm width). No PCB layout modifications are required.

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