74VHC157MTC Equivalent & Substitute Parts

Part Overview

The 74VHC157MTC is a 4 x 2:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The 74VHC157MTC operates across a single supply voltage range of 2V to 5.5V with output currents of 8mA for both high and low states, serving applications requiring signal multiplexing in low-voltage digital systems.

Substiute Parts

74VHC157MTC

onsemiIn Stock: 190974VHC157MTC Datasheet

Current PartRFQ

SN74AHC157PW

Texas InstrumentsIn Stock: 3213SN74AHC157PW Datasheet

DirectRFQ

SN74AHC157PWR

Texas InstrumentsIn Stock: 3201SN74AHC157PWR Datasheet

DirectRFQ

74AHC157PW,118

NXP USA Inc.In Stock: 595974AHC157PW,118 Datasheet

UpgradeRFQ

74AHC157PW-Q100J

Nexperia USA Inc.In Stock: 87574AHC157PW-Q100J Datasheet

UpgradeRFQ

SN74AHC157PWRG3

Texas InstrumentsIn Stock: 3230SN74AHC157PWRG3 Datasheet

UpgradeRFQ

SN74AHC157DBR

Texas InstrumentsIn Stock: 16218SN74AHC157DBR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VHC157MTC is determined by the following critical parameters that must remain constant across all equivalent parts:

• Circuit configuration: 4 x 2:1 multiplexer topology
• Package type: 16-TSSOP surface mount package with 0.173" width (4.40mm)
• Voltage supply range: 2V to 5.5V single supply operation
• Output current capability: 8mA high and low states
• Independent circuits: 1 circuit per device
• Mounting technology: Surface mount

Substitute parts are grouped into three categories based on product status and availability:

Direct Substitutes maintain identical electrical and mechanical specifications with improved product status (active or discontinued at distributor level).

Upgrade Substitutes provide enhanced operating temperature ranges (-40°C to 125°C versus -40°C to 85°C) or automotive-grade qualifications while maintaining all other critical parameters.

Similar Substitutes use alternative package geometries (16-SSOP versus 16-TSSOP) that require PCB layout modifications but maintain identical electrical performance and circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): SN74AHC157PWR is the primary recommended substitute. This Texas Instruments part maintains all electrical and mechanical specifications of the 74VHC157MTC while offering active product status and improved long-term availability. The part is available in Cut Tape and Digi-Reel packaging formats.

For Enhanced Temperature Range Applications: SN74AHC157PWRG3, 74AHC157PW,118, and 74AHC157PW-Q100J provide extended operating temperature ranges (-40°C to 125°C) compared to the original 74VHC157MTC (-40°C to 85°C). These parts are suitable for applications requiring higher temperature performance while maintaining identical circuit functionality and package geometry.

For Automotive Applications: 74AHC157PW-Q100J is qualified to AEC-Q100 automotive standards and provides the extended temperature range required for automotive-grade multiplexer applications. This part is manufactured by Nexperia USA Inc. and maintains all critical electrical parameters.

For Alternative Package Geometry: SN74AHC157DBR uses a 16-SSOP package (0.209" width) instead of 16-TSSOP (0.173" width). This substitute requires PCB layout modification but maintains identical electrical performance. This option is suitable only when PCB redesign is feasible.

Frequently Asked Questions (FAQ)

Q: Can I use SN74AHC157DBR as a direct replacement for 74VHC157MTC? A: SN74AHC157DBR maintains identical electrical specifications but uses a 16-SSOP package instead of 16-TSSOP. The package width differs (0.209" versus 0.173"), requiring PCB layout modifications. Direct socket substitution is not possible without redesign.

Q: What is the difference between the 74VHC and 74AHC series? A: Both series implement identical 4 x 2:1 multiplexer circuits with the same voltage supply range (2V to 5.5V) and output current specifications (8mA). The primary difference is operating temperature range: 74VHC operates to 85°C while 74AHC operates to 125°C.

Q: Is 74AHC157PW-Q100J suitable for automotive applications? A: Yes. 74AHC157PW-Q100J carries AEC-Q100 automotive qualification and is manufactured by Nexperia USA Inc. This part meets automotive-grade requirements while maintaining all electrical and mechanical specifications required for multiplexer functionality.

Q: Why is the 74VHC157MTC listed as obsolete? A: The 74VHC157MTC is obsolete due to manufacturer discontinuation. Active alternatives from Texas Instruments (SN74AHC157PWR, SN74AHC157PWRG3) and NXP/Nexperia (74AHC157PW,118, 74AHC157PW-Q100J) provide equivalent functionality with improved product status and availability.

Q: Can I substitute parts with different packaging formats? A: Packaging format changes (Tube, Cut Tape, Digi-Reel, Tape & Reel, Bulk) do not affect electrical compatibility. These formats represent different distribution and handling methods. Select based on your procurement and assembly requirements.

Q: What are the critical parameters for multiplexer substitution? A: Circuit configuration (4 x 2:1), package type (16-TSSOP), voltage supply range (2V to 5.5V), output current (8mA), and mounting type (surface mount) must remain constant. Operating temperature range and product status may vary based on application requirements.