74LCX08M AND Gate IC Equivalent & Substitute Parts

Part Overview

The 74LCX08M is a 4-channel 2-input AND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part operates across a 2V to 3.6V supply voltage range with a maximum propagation delay of 5.5ns at 3.3V with 50pF load. The 74LCX08M is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74LCX08M

onsemiIn Stock: 167874LCX08M Datasheet

Current PartRFQ

MC74LCX08DG

onsemiIn Stock: 2273MC74LCX08DG Datasheet

Parametric EquivalentRFQ

SN74LVC08AD

Texas InstrumentsIn Stock: 1972SN74LVC08AD Datasheet

DirectRFQ

74LVC08AD,118

Nexperia USA Inc.In Stock: 2098574LVC08AD,118 Datasheet

SimilarRFQ

SN74LVC08ADR

Texas InstrumentsIn Stock: 40385SN74LVC08ADR Datasheet

SimilarRFQ

SN74LVC08ADRG3

Texas InstrumentsIn Stock: 42273SN74LVC08ADRG3 Datasheet

SimilarRFQ

SN74LVC08ADT

Texas InstrumentsIn Stock: 1462SN74LVC08ADT Datasheet

SimilarRFQ

SN74LVC08AMDREP

Texas InstrumentsIn Stock: 911SN74LVC08AMDREP Datasheet

SimilarRFQ

SN74LVC08ANS

Texas InstrumentsIn Stock: 1170SN74LVC08ANS Datasheet

SimilarRFQ

SN74LVC08ANSR

Texas InstrumentsIn Stock: 2337SN74LVC08ANSR Datasheet

SimilarRFQ

SN74LVC08AQDREP

Texas InstrumentsIn Stock: 1186SN74LVC08AQDREP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LCX08M is determined by the following critical parameters: logic type (AND gate), circuit count (4 channels), input count (2 inputs per channel), package type (14-SOIC surface mount), and electrical compatibility within the specified voltage and timing ranges.

Substitute parts are grouped into two categories:

Parametric Equivalent: MC74LCX08DG matches all electrical specifications and package requirements of the 74LCX08M, including supply voltage range (2V ~ 3.6V), quiescent current (10 µA), and propagation delay (5.5ns @ 3.3V, 50pF). This part is manufactured by onsemi and remains in active production status.

Direct and Similar Manufacturers: Texas Instruments (SN74LVC08 series) and Nexperia USA Inc. (74LVC08 series) offer functionally equivalent AND gate ICs in 14-SOIC or 14-SO packaging. These parts operate within compatible voltage ranges (1.2V ~ 3.6V to 1.65V ~ 3.6V) and maintain equivalent output drive capability (24mA). Propagation delays range from 3.9ns to 4.1ns at 3.3V with 50pF load, meeting or exceeding the 74LCX08M performance. All substitute parts are ROHS3 compliant and MSL Level 1.

Parameter Comparison

Engineering Selection Recommendations

MC74LCX08DG is the direct parametric equivalent for the 74LCX08M. Both parts share identical electrical specifications, supply voltage range, quiescent current, and propagation delay characteristics. MC74LCX08DG is manufactured by onsemi and maintains active production status, ensuring long-term availability. This part is recommended as the primary replacement for obsolete 74LCX08M inventory.

SN74LVC08 series (Texas Instruments) and 74LVC08AD,118 (Nexperia USA Inc.) provide functional equivalence with enhanced performance characteristics. These parts operate across wider voltage ranges (1.2V ~ 3.6V to 1.65V ~ 3.6V) and deliver faster propagation delays (3.9ns to 4.1ns). Extended operating temperature ranges (-40°C ~ 125°C) provide additional design margin compared to the 74LCX08M (-40°C ~ 85°C). All substitute parts maintain ROHS3 compliance and MSL Level 1 rating.

Package considerations: SN74LVC08ANS and SN74LVC08ANSR feature a wider 14-SO package (0.209", 5.30mm width) compared to the standard 14-SOIC (0.154", 3.90mm width). Verify PCB layout compatibility before selection.

Quiescent current: SN74LVC08 variants with 1 µA quiescent current (SN74LVC08AD, SN74LVC08ADR, SN74LVC08ADRG3, SN74LVC08ANSR) offer reduced power consumption compared to the 74LCX08M (10 µA).

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74LCX08M with MC74LCX08DG? A: Yes. MC74LCX08DG is the parametric equivalent with identical electrical specifications, supply voltage range (2V ~ 3.6V), quiescent current (10 µA), and propagation delay (5.5ns @ 3.3V, 50pF). Both parts use 14-SOIC packaging with 0.154" width. Packaging differs only in delivery format (Tube vs. unspecified for 74LCX08M).

Q: What are the key differences between 74LCX and 74LVC series? A: The 74LVC series operates across a wider supply voltage range (1.2V ~ 3.6V to 1.65V ~ 3.6V) compared to 74LCX (2V ~ 3.6V). 74LVC parts typically feature lower quiescent current (1 µA vs. 10 µA) and faster propagation delays (3.9ns to 4.1ns vs. 5.5ns). Both series maintain equivalent output drive capability (24mA) and are ROHS3 compliant.

Q: Are all substitute parts pin-compatible with 74LCX08M? A: Yes. All listed substitute parts maintain 4-channel 2-input AND gate functionality in 14-pin SOIC or 14-pin SO packaging with identical pin assignments. Verify specific package dimensions (0.154" vs. 0.209" width) for PCB layout compatibility.

Q: Which substitute part offers the lowest power consumption? A: SN74LVC08AD, SN74LVC08ADR, SN74LVC08ADRG3, and SN74LVC08ANSR feature 1 µA quiescent current, compared to 10 µA for the 74LCX08M and MC74LCX08DG. 74LVC08AD,118 (Nexperia) operates at 40 µA quiescent current.

Q: What is the temperature operating range difference? A: The 74LCX08M operates from -40°C to 85°C. Most 74LVC substitutes extend to -40°C to 125°C, providing 40°C additional high-temperature margin. SN74LVC08AMDREP and SN74LVC08AQDREP extend the low-temperature range to -55°C.

Q: Can I use SN74LVC08ANS or SN74LVC08ANSR as direct replacements? A: These parts are functionally equivalent but use a wider 14-SO package (0.209", 5.30mm width) compared to the standard 14-SOIC (0.154", 3.90mm width). Verify PCB footprint compatibility before substitution. Electrical performance and pin assignments remain equivalent.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the 74LCX08M compliance profile.