74LVC157ADB,112 Equivalent & Substitute Parts

Part Overview

The 74LVC157ADB,112 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 16-SSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The 74LVC157 series provides four independent 2:1 multiplexer circuits with single supply voltage operation. The device is designed for low-voltage digital logic applications requiring signal routing and selection functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC157ADB,112
Manufacturer	Nexperia USA Inc.
Type	Multiplexer 4 x 2:1
Package / Case	16-SSOP (0.209", 5.30mm Width)
Voltage Supply	1.2V ~ 3.6V
Current - Output High, Low	24mA, 24mA
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 74LVC157ADB,112 is determined by the following critical parameters:

Circuit Configuration: 4 x 2:1 multiplexer topology
Output Current: 24mA high and low
Supply Voltage Range: Minimum 1.2V to 3.6V operation
Operating Temperature Range: -40°C to 125°C
Package Type: 16-SSOP or 16-TSSOP surface mount packages
Compliance: ROHS3 compliant, EAR99 classification

Substitute parts are grouped into two package categories: 16-SSOP (original package) and 16-TSSOP (alternative package). Both packages are functionally equivalent for circuit operation, with differences limited to physical dimensions and thermal characteristics.

Parameter Comparison

Part Number	Manufacturer	Package	Voltage Supply	Operating Temp	Output Current	Product Status	Automotive Grade
74LVC157ADB,112	Nexperia USA Inc.	16-SSOP	1.2V ~ 3.6V	-40°C ~ 125°C	24mA, 24mA	Obsolete	No
SN74LVC157ADBR	Texas Instruments	16-SSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA, 24mA	Active	No
74LCX157MTCX	onsemi	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA, 24mA	Active	No
CLVC157AQPWRG4Q1	Texas Instruments	16-TSSOP	2V ~ 3.6V	-40°C ~ 125°C	24mA, 24mA	Active	Yes (AEC-Q100)
SN74LVC157APW	Texas Instruments	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA, 24mA	Active	No
SN74LVC157APWT	Texas Instruments	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA, 24mA	Active	No
SN74LVC157AQPWREP	Texas Instruments	16-TSSOP	2V ~ 3.6V	-40°C ~ 125°C	24mA, 24mA	Active	No
SN74LVC157AQPWRQ1	Texas Instruments	16-TSSOP	2V ~ 3.6V	-40°C ~ 125°C	24mA, 24mA	Active	Yes (AEC-Q100)

Engineering Selection Recommendations

For 16-SSOP Package Continuity: SN74LVC157ADBR is the direct active substitute maintaining the original 16-SSOP package format. This part is currently active and available from Texas Instruments. Note that the supply voltage range is reduced to 2V ~ 3.6V and operating temperature is limited to -40°C ~ 85°C compared to the original specification.

For Extended Temperature Range (-40°C ~ 125°C): SN74LVC157AQPWREP and SN74LVC157AQPWRQ1 maintain the full -40°C ~ 125°C operating temperature range. Both are active parts from Texas Instruments in 16-TSSOP package. SN74LVC157AQPWRQ1 includes automotive-grade qualification (AEC-Q100).

For Automotive Applications: CLVC157AQPWRG4Q1 and SN74LVC157AQPWRQ1 are both AEC-Q100 qualified automotive-grade parts. Both operate across -40°C ~ 125°C and are currently active. CLVC157AQPWRG4Q1 is supplied in Tape & Reel packaging.

For Standard Industrial Applications: SN74LVC157APW and SN74LVC157APWT are cost-effective active alternatives with standard temperature range (-40°C ~ 85°C). Both are available in 16-TSSOP package from Texas Instruments.

For onsemi Supply Chain: 74LCX157MTCX from onsemi provides functional equivalence in 16-TSSOP package with active product status and high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use a 16-TSSOP package part as a direct replacement for the 16-SSOP original? A: Yes, functionally the parts are equivalent. However, 16-TSSOP and 16-SSOP packages have different physical dimensions and pin spacing. PCB layout modifications are required. 16-TSSOP is narrower (0.173" vs 0.209" width) and may require footprint redesign.

Q: What is the key difference between SN74LVC157AQPWRQ1 and SN74LVC157AQPWREP? A: Both parts are identical in electrical specifications and temperature range (-40°C ~ 125°C). SN74LVC157AQPWRQ1 includes automotive-grade qualification (AEC-Q100), making it suitable for automotive applications. SN74LVC157AQPWREP is the standard industrial version.

Q: Why does the original part specify 1.2V ~ 3.6V supply voltage while most substitutes specify 2V ~ 3.6V? A: The original Nexperia part has a lower minimum supply voltage specification. Most active substitutes from Texas Instruments and onsemi specify 2V minimum. Designs operating below 2V require verification of substitute part datasheets or selection of the original specification parts if available.

Q: Are all substitute parts ROHS3 compliant? A: Yes, all listed substitute parts are ROHS3 compliant and carry EAR99 export classification, matching the original part's compliance status.

Q: Which substitute offers the best inventory availability? A: 74LCX157MTCX from onsemi shows the highest inventory level at 22,989 pieces. SN74LVC157AQPWRQ1 and CLVC157AQPWRG4Q1 also maintain substantial active inventory levels above 2,800 pieces.

Q: Can I substitute based on package type alone? A: No. While package type is important for PCB compatibility, electrical parameters must also match: circuit configuration (4 x 2:1), output current (24mA), and operating temperature range must be verified against your application requirements.

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