74LVC157APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC157APW,112 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 16-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device operates across a single supply voltage range of 1.2V to 3.6V with output currents of 24mA for both high and low states, suitable for low-voltage logic applications requiring signal multiplexing functionality.

Key Parameters

Parameter	Value
Type	Multiplexer 4 x 2:1
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Voltage Supply Range	1.2V ~ 3.6V
Output Current (High/Low)	24mA / 24mA
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC157APW,112 is determined by the following critical parameters: multiplexer circuit configuration (4 x 2:1), package type (16-TSSOP), output current capability (24mA), supply voltage range compatibility, and operating temperature range. Substitute parts are grouped into two categories:

Parametric Equivalent: Parts with identical or overlapping electrical specifications and the same 16-TSSOP package footprint, allowing direct replacement without design modification.

Similar Parts: Parts with the same functional circuit and package but with variations in supply voltage range, operating temperature limits, or product status. These require design verification for specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Circuit	Package	Voltage Supply	Operating Temp	Output Current	Product Status
74LVC157APW,112	Nexperia USA Inc.	4 x 2:1	16-TSSOP	1.2V ~ 3.6V	-40°C ~ 125°C	24mA / 24mA	Obsolete
74LVC257APW,112	NXP Semiconductors	4 x 2:1	16-TSSOP	1.2V ~ 3.6V	-40°C ~ 125°C	24mA / 24mA	Active
74LCX157MTCX	onsemi	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Active
CLVC157AQPWRG4Q1	Texas Instruments	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 125°C	24mA / 24mA	Active
MC74LCX157DTG	onsemi	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Obsolete
MC74LCX157DTR2G	onsemi	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Active
SN74LVC157ADBR	Texas Instruments	4 x 2:1	16-SSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Active
SN74LVC157APW	Texas Instruments	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Active
SN74LVC157APWE4	Texas Instruments	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Discontinued at DiGi Electronics
SN74LVC157APWR	Texas Instruments	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Active
SN74LVC157APWRE4	Texas Instruments	4 x 2:1	16-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA / 24mA	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Primary Recommendation: 74LVC257APW,112 (NXP Semiconductors) is the preferred parametric equivalent. This part maintains identical electrical specifications including the full 1.2V to 3.6V supply voltage range and -40°C to 125°C operating temperature of the original 74LVC157APW,112. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Secondary Recommendations: SN74LVC157APW (Texas Instruments) and SN74LVC157APWR (Texas Instruments) are active alternatives with identical 16-TSSOP packaging and 24mA output current specifications. These parts operate within a 2V to 3.6V supply range and -40°C to 85°C temperature range, suitable for applications not requiring the extended 1.2V minimum supply voltage or 125°C maximum temperature of the original part.

Automotive Grade Option: CLVC157AQPWRG4Q1 (Texas Instruments) is available for automotive applications with AEC-Q100 qualification. This part maintains the -40°C to 125°C operating temperature range and is currently active in production.

Package Consideration: SN74LVC157ADBR (Texas Instruments) uses a 16-SSOP package (0.209" width) instead of 16-TSSOP (0.173" width). This part requires PCB layout modification and is suitable only when package footprint change is acceptable.

Frequently Asked Questions (FAQ)

Q: Can 74LVC257APW,112 directly replace 74LVC157APW,112?

A: Yes. Both parts share identical electrical specifications: 4 x 2:1 multiplexer circuit, 16-TSSOP package, 1.2V to 3.6V supply voltage range, 24mA output current, and -40°C to 125°C operating temperature. The 74LVC257APW,112 is currently active in production, making it the direct equivalent for the obsolete 74LVC157APW,112.

Q: What is the difference between 16-TSSOP and 16-SSOP packages?

A: 16-TSSOP has a 0.173" body width with 4.40mm pitch, while 16-SSOP has a 0.209" body width with 5.30mm pitch. These are different footprints requiring separate PCB designs. Direct substitution between these packages is not possible without layout modification.

Q: Are parts with 2V minimum supply voltage compatible with 1.2V applications?

A: No. Parts specified with 2V to 3.6V supply range are not rated for operation below 2V. Applications requiring 1.2V minimum supply voltage must use parts with 1.2V to 3.6V specifications, such as 74LVC257APW,112.

Q: Which substitute parts are currently in active production?

A: Active production parts include 74LVC257APW,112 (NXP), 74LCX157MTCX (onsemi), CLVC157AQPWRG4Q1 (Texas Instruments), MC74LCX157DTR2G (onsemi), SN74LVC157ADBR (Texas Instruments), SN74LVC157APW (Texas Instruments), and SN74LVC157APWR (Texas Instruments).

Q: Is RoHS3 compliance maintained across all substitute parts?

A: Yes. All substitute parts listed maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), consistent with the original 74LVC157APW,112 specifications.

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