74LVC08AMTR Equivalent & Substitute Parts

Part Overview

The 74LVC08AMTR is a 4-channel 2-input AND gate logic IC manufactured by STMicroelectronics in a 14-SO surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The 74LVC08 logic family provides standard AND gate functionality across multiple manufacturers with varying electrical specifications and product statuses.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	1.65V ~ 3.6V
Package Type	14-SOIC / 14-SO
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 125°C
Current Output (High/Low)	24mA / 24mA
Propagation Delay	5ns @ 3.3V, 50pF

Substitute Part Grouping Explanation

Substitution of the 74LVC08AMTR is determined by the following critical parameters: logic type (AND gate), circuit count (4 channels), input count (2 inputs per channel), supply voltage compatibility (1.65V ~ 3.6V minimum overlap), package form factor (14-SOIC or 14-SO), and surface mount configuration. All substitute parts maintain identical functional logic architecture and pin configuration.

The substitute parts are grouped into two categories:

Direct Substitutes (Active Status): Parts that maintain full electrical parameter compatibility within the original specification range, including supply voltage, quiescent current, propagation delay, and operating temperature.

Similar Substitutes (Active Status, Parameter Variations): Parts that provide equivalent AND gate functionality with variations in specific electrical parameters such as supply voltage range, quiescent current, propagation delay, or operating temperature range. These parts are functionally compatible but operate within different specification windows.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	RoHS Status
74LVC08AMTR	STMicroelectronics	Obsolete	1.65V ~ 3.6V	10 µA	5ns	-55°C ~ 125°C	14-SO	Non-compliant
SN74LVC08ADR	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	ROHS3 Compliant
SN74LVC08AMDREP	Texas Instruments	Active	2V ~ 3.6V	10 µA	4.1ns	-55°C ~ 125°C	14-SOIC	ROHS3 Compliant
74LCX08M	Fairchild Semiconductor	Active	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-SOIC	Not specified
74LVC08AD,118	Nexperia USA Inc.	Active	1.2V ~ 3.6V	40 µA	4.1ns	-40°C ~ 125°C	14-SO	ROHS3 Compliant
MC74LCX08DG	onsemi	Active	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-SOIC	ROHS3 Compliant
MC74LCX08DR2G	onsemi	Active	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-SOIC	ROHS3 Compliant
SN74LVC08AD	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	ROHS3 Compliant
SN74LVC08ADT	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SOIC	ROHS3 Compliant
SN74LVC08ANSR	Texas Instruments	Active	1.65V ~ 3.6V	1 µA	3.9ns	-40°C ~ 125°C	14-SO	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation for Extended Temperature Range (-55°C to 125°C):

SN74LVC08AMDREP (Texas Instruments) maintains the original operating temperature specification of -55°C to 125°C while providing active product status and ROHS3 compliance. This part is suitable for applications requiring the full temperature range of the obsolete 74LVC08AMTR.

Primary Recommendation for Standard Temperature Range (-40°C to 125°C):

SN74LVC08ADR or SN74LVC08AD (Texas Instruments) provide superior electrical performance with lower quiescent current (1 µA versus 10 µA) and faster propagation delay (3.9ns versus 5ns). Both parts maintain full voltage supply compatibility and offer ROHS3 compliance with active product status.

Alternative for Package Form Factor Consistency:

SN74LVC08ANSR (Texas Instruments) maintains the 14-SO package form factor identical to the original 74LVC08AMTR while providing active status and ROHS3 compliance. This part is recommended when PCB layout constraints require the specific 14-SO package configuration.

Alternative for Lower Supply Voltage Applications:

74LVC08AD,118 (Nexperia USA Inc.) extends the minimum supply voltage to 1.2V, providing compatibility with ultra-low-voltage applications while maintaining active status and ROHS3 compliance.

All recommended substitutes are active products with current manufacturing status and RoHS compliance certifications, eliminating obsolescence risk associated with the original 74LVC08AMTR.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC08ADR directly replace 74LVC08AMTR in all applications?

A: SN74LVC08ADR is electrically compatible within the overlapping voltage range (1.65V ~ 3.6V) and maintains identical logic functionality. The primary difference is the operating temperature range: SN74LVC08ADR operates from -40°C to 125°C, while the original operates from -55°C to 125°C. For applications requiring operation below -40°C, SN74LVC08AMDREP is the appropriate substitute.

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

A: Both are surface mount packages with 14 pins and identical pin spacing (0.154" width). The primary distinction is the body width: 14-SO typically measures 5.30mm width, while 14-SOIC measures 3.90mm width. Package selection depends on PCB layout constraints and available board space. SN74LVC08ANSR maintains the 14-SO form factor, while most other substitutes use 14-SOIC.

Q: Why do some substitutes have lower quiescent current specifications?

A: Quiescent current variation reflects manufacturing process improvements and design optimization across different manufacturers and product generations. Lower quiescent current (1 µA in Texas Instruments parts versus 10 µA in the original) indicates reduced power consumption during idle states, providing a performance advantage without compromising functional compatibility.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant except for 74LCX08M, which does not specify RoHS status. For applications requiring RoHS compliance certification, select from the Texas Instruments, Nexperia, or onsemi parts with explicit ROHS3 compliance designation.

Q: What is the significance of propagation delay differences?

A: Propagation delay (3.9ns to 5.5ns @ 3.3V, 50pF) represents the time required for a logic state change at the input to propagate to the output. Faster propagation delay (3.9ns in Texas Instruments parts) provides improved timing performance in high-speed applications. For standard logic applications, propagation delay variations within this range are typically not functionally significant.

Q: Can 74LCX08M or MC74LCX08DG be used as substitutes?

A: These parts provide equivalent AND gate functionality but operate within a reduced temperature range (-40°C to 85°C) and minimum supply voltage (2V minimum versus 1.65V). They are suitable substitutes for applications operating within these parameter windows. For applications requiring the full -55°C to 125°C temperature range or 1.65V minimum supply voltage, Texas Instruments or Nexperia parts are required.

Q: What packaging options are available for procurement?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), Tube, and Bulk. Selection depends on production volume and assembly requirements. High-volume production typically uses Tape & Reel packaging, while lower volumes may use Tube or Bulk options.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message