74LVC157AD,118 Equivalent & Substitute Parts

Part Overview

The 74LVC157AD,118 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This device functions as a data selector, routing one of two input signals to a single output based on control logic. The part is currently active in production with 1842 units in stock. Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed for supply chain resilience.

Key Parameters

Parameter	Value
Multiplexer Configuration	4 x 2:1
Independent Circuits	1
Output Current (High/Low)	24mA / 24mA
Supply Voltage Range	1.2V – 3.6V
Operating Temperature Range	-40°C to 125°C
Package Type	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC157AD,118 is determined by the following criteria:

Primary Substitution Criteria:

Multiplexer circuit configuration: 4 x 2:1
Package type: 16-SOIC form factor
Output current capability: 24mA minimum (both high and low)
Single independent circuit
Surface mount mounting type

Secondary Compatibility Factors:

Supply voltage range overlap (minimum 1.2V to 3.6V or compatible subset)
Operating temperature range (minimum -40°C to 85°C; extended range to 125°C preferred)
RoHS and REACH compliance status
Moisture sensitivity level MSL 1

Parts are grouped into two categories: Parametric Equivalents (identical specifications across all parameters) and Similar Parts (functionally equivalent with minor parameter variations that do not affect circuit operation within standard design margins).

Parameter Comparison

Part Number	Manufacturer	Circuit	Supply Voltage	Temp Range	Output Current	Package	Status	Inventory
74LVC157AD,118	Nexperia USA Inc.	4 x 2:1	1.2V – 3.6V	-40°C to 125°C	24mA / 24mA	16-SOIC	Active	1842
74LVC257AD,118	Nexperia USA Inc.	4 x 2:1	1.2V – 3.6V	-40°C to 125°C	24mA / 24mA	16-SOIC	Active	3007
74LCX157M	Fairchild Semiconductor	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	20300
74LCX157MX	Fairchild Semiconductor	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	20900
MC74LCX157DR2G	onsemi	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	5300
SN74LVC157AD	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	3300
SN74LVC157ADE4	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Discontinued	4181
SN74LVC157ADR	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	3700
SN74LVC157ADRG3	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	1645
SN74LVC157ADT	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 85°C	24mA / 24mA	16-SOIC	Active	2278
SN74LVC157AQDRG4Q1	Texas Instruments	4 x 2:1	2V – 3.6V	-40°C to 125°C	24mA / 24mA	16-SOIC	Active	3451

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): The 74LVC257AD,118 from Nexperia USA Inc. is a parametric equivalent with identical electrical specifications and temperature range. This part maintains full compatibility with the 74LVC157AD,118 across all critical parameters and offers higher inventory availability (3007 units).

Active Substitutes with Minor Parameter Variations: Parts from the 74LVC series (Texas Instruments variants: SN74LVC157AD, SN74LVC157ADR, SN74LVC157ADRG3, SN74LVC157ADT) and 74LCX series (Fairchild Semiconductor: 74LCX157M, 74LCX157MX; onsemi: MC74LCX157DR2G) are functionally equivalent multiplexers. These parts operate within a reduced supply voltage range (2V – 3.6V minimum) and reduced temperature range (-40°C to 85°C), which is acceptable for most standard industrial and commercial applications. All active parts maintain ROHS3 compliance and MSL 1 rating.

Automotive-Grade Option: The SN74LVC157AQDRG4Q1 from Texas Instruments is qualified to AEC-Q100 automotive standards with extended temperature range (-40°C to 125°C), suitable for automotive and high-reliability applications requiring grade certification.

Parts to Avoid: The SN74LVC157ADE4 is discontinued at DiGi Electronics and should not be selected for new designs despite available inventory.

Frequently Asked Questions (FAQ)

Q: Can I use 74LCX157M as a direct replacement for 74LVC157AD,118? A: The 74LCX157M is functionally equivalent in circuit configuration and package type. However, it operates at a minimum supply voltage of 2V (versus 1.2V for the original part) and a maximum temperature of 85°C (versus 125°C). If your application requires operation below 2V or above 85°C, this substitution is not suitable. For standard industrial applications within 2V – 3.6V and -40°C to 85°C, it is compatible.

Q: What is the difference between 74LVC157AD,118 and 74LVC257AD,118? A: Both parts are 4 x 2:1 multiplexers in identical 16-SOIC packages with matching electrical specifications. The primary difference is the base product number (157 versus 257), which reflects different internal logic configurations. The 74LVC257AD,118 is a parametric equivalent suitable for direct substitution.

Q: Are all substitute parts RoHS compliant? A: All active substitute parts listed are ROHS3 compliant. The discontinued SN74LVC157ADE4 is also ROHS3 compliant but should not be used for new designs.

Q: Which substitute offers the best inventory availability? A: The 74LCX157MX from Fairchild Semiconductor offers the highest inventory at 20,900 units, followed by 74LCX157M at 20,300 units. Both are functionally equivalent with the noted supply voltage and temperature range limitations.

Q: Is the SN74LVC157AQDRG4Q1 suitable for automotive applications? A: Yes. The SN74LVC157AQDRG4Q1 carries AEC-Q100 automotive qualification and maintains the extended temperature range (-40°C to 125°C) of the original part, making it appropriate for automotive and high-reliability applications.

Q: Can I mix different manufacturers' parts in the same design? A: Yes. All listed parts are functionally equivalent 4 x 2:1 multiplexers in 16-SOIC packages with matching output current and logic specifications. Mixing manufacturers is acceptable provided all parts meet your application's voltage and temperature requirements.

Q: What is the significance of the packaging suffix (AD, ADR, ADT)? A: These suffixes indicate different packaging formats from the same manufacturer. AD typically indicates tube packaging, ADR indicates tape and reel, and ADT indicates tape and reel with specific reel specifications. The electrical specifications remain identical; the suffix only affects how the parts are supplied.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message