74LCX10MX NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74LCX10MX is a 3-channel, 3-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74LCX series operates at 2.3V to 3.6V supply voltage with low quiescent current and standard propagation delay characteristics suitable for general-purpose logic applications.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	3
Number of Inputs	3
Voltage - Supply	2.3V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	4.9ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 74LCX10MX is determined by the following critical parameters:

Logic function: 3-channel, 3-input NAND gate
Supply voltage compatibility: Minimum 2.3V operation required
Output drive capability: 24mA minimum for both high and low states
Input logic thresholds: 0.7V–0.8V (low), 1.7V–2V (high)
Propagation delay: Maximum 4.9ns at 3.3V with 50pF load
Package form factor: 14-SOIC surface mount
Moisture sensitivity: MSL 1 or better

All substitute parts listed maintain functional equivalence across these parameters. The 74LVC series variants from Texas Instruments and NXP Semiconductors provide direct functional replacement with enhanced specifications in several categories, including lower quiescent current and extended operating temperature range.

Parameter Comparison

Parameter	74LCX10MX (Main)	74LVC10AD,118 (NXP)	SN74LVC10AD (TI)	SN74LVC10ADR (TI)	SN74LVC10ADT (TI)	SN74LVC10ANSR (TI)
Logic Type	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate
Number of Circuits	3	3	3	3	3	3
Number of Inputs	3	3	3	3	3	3
Voltage - Supply	2.3V ~ 3.6V	Not specified	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Current - Quiescent (Max)	10 µA	Not specified	1 µA	1 µA	1 µA	1 µA
Current - Output High, Low	24mA, 24mA	Not specified	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.7V ~ 0.8V	Not specified	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V	Not specified	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	4.9ns	Not specified	4.7ns	4.7ns	4.7ns	4.7ns
Operating Temperature	-40°C ~ 85°C	Not specified	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm)	Not specified	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.209", 5.30mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 74LCX10MX is obsolete and requires substitution for new production. All listed substitute parts maintain functional equivalence for the core NAND gate logic operation.

Primary Substitutes (Recommended for New Designs):

The Texas Instruments 74LVC series variants (SN74LVC10AD, SN74LVC10ADR, SN74LVC10ADT, SN74LVC10ANSR) are active products with ROHS3 compliance. These parts offer improved specifications including lower quiescent current (1 µA versus 10 µA) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). All Texas Instruments variants maintain identical logic thresholds, output drive capability, and propagation delay performance.

Package Consideration:

SN74LVC10ANSR uses a 14-SO package with 5.30mm width, differing from the standard 14-SOIC (0.154", 3.90mm) footprint. This variant requires PCB layout verification before selection.

Secondary Substitute:

The NXP Semiconductors 74LVC10AD,118 is an active product. Detailed electrical specifications are not fully provided in the reference data; verification against design requirements is necessary before implementation.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC10AD series directly replace the 74LCX10MX?

A: Yes. The 74LVC series maintains the same logic function (3-channel, 3-input NAND gate), output drive capability (24mA), input logic thresholds, and propagation delay performance. The 74LVC variants are active products with enhanced specifications.

Q: What is the difference between the Texas Instruments 74LVC10 variants?

A: SN74LVC10AD is supplied in tube packaging. SN74LVC10ADR and SN74LVC10ADT are supplied in cut tape and digi-reel formats. SN74LVC10ANSR is supplied in tape and reel format with a wider 14-SO package (5.30mm). All variants share identical electrical specifications.

Q: Is the SN74LVC10ANSR pin-compatible with the 74LCX10MX?

A: The SN74LVC10ANSR uses a 14-SO package with 5.30mm width, while the 74LCX10MX uses a 14-SOIC package with 3.90mm width. PCB footprint verification is required before substitution.

Q: What is the quiescent current difference between the 74LCX10MX and 74LVC substitutes?

A: The 74LCX10MX draws a maximum of 10 µA quiescent current. The 74LVC series draws a maximum of 1 µA, representing a 10-fold reduction in standby power consumption.

Q: Are all substitute parts RoHS compliant?

A: The Texas Instruments 74LVC variants are ROHS3 compliant. The NXP 74LVC10AD,118 RoHS status is not specified in the reference data.

Q: What is the operating temperature range difference?

A: The 74LCX10MX operates from -40°C to 85°C. The Texas Instruments 74LVC variants operate from -40°C to 125°C, providing extended high-temperature capability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message