SN74LVC2G157DCTRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G157DCTRG4 is a logic multiplexer IC manufactured by Texas Instruments, featuring a 1 x 2:1 multiplexer configuration in an 8-LSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design requirements and production needs. The device operates across a wide voltage supply range of 1.65V to 5.5V with output currents of 32mA for both high and low states, suitable for general-purpose logic multiplexing applications.

Substiute Parts

SN74LVC2G157DCTRG4

Texas InstrumentsIn Stock: 1995SN74LVC2G157DCTRG4 Datasheet

Current PartRFQ

SN74LVC2G157DCTR

Texas InstrumentsIn Stock: 3280SN74LVC2G157DCTR Datasheet

Parametric EquivalentRFQ

TC7WH157FU,LJ(CT

Toshiba Semiconductor and StorageIn Stock: 2704TC7WH157FU,LJ(CT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LVC2G157DCTRG4 is determined by the following critical parameters:

Functional Equivalence: Circuit configuration must be 1 x 2:1 multiplexer with 1 independent circuit.

Electrical Compatibility: Voltage supply range must encompass or match the original specification (1.65V ~ 5.5V). Output current capability must meet or exceed 32mA for both high and low states. Operating temperature range must cover -40°C ~ 85°C.

Physical Compatibility: Package must be surface mount with compatible pinout and footprint (8-LSSOP, 8-MSOP, or equivalent 8-pin SSOP variants).

Compliance Requirements: RoHS3 compliance and MSL rating of 1 are mandatory for production environments.

Two substitute parts meet these criteria:

1. SN74LVC2G157DCTR (Texas Instruments) - Parametric equivalent with identical electrical specifications and active product status.
2. TC7WH157FU,LJ(CT (Toshiba Semiconductor and Storage) - Manufacturer-recommended alternative with compatible functionality, though with reduced output current specifications.

Parameter Comparison

Engineering Selection Recommendations

SN74LVC2G157DCTR is the primary substitute for the SN74LVC2G157DCTRG4. Both parts are manufactured by Texas Instruments with identical electrical specifications, including 32mA output current capability and 1.65V ~ 5.5V supply voltage range. The SN74LVC2G157DCTR maintains active product status, ensuring long-term availability and supply chain stability. Packaging and compliance certifications are equivalent, making this a direct replacement with no design modifications required.

TC7WH157FU,LJ(CT is a secondary alternative from Toshiba Semiconductor and Storage. While functionally equivalent in circuit configuration and operating temperature range, this part has reduced output current specifications (8mA versus 32mA) and a minimum supply voltage of 2V instead of 1.65V. This substitute is suitable only for applications where the lower output current and higher minimum voltage do not present design constraints. The part maintains active status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC2G157DCTR be used as a direct replacement for SN74LVC2G157DCTRG4?

A: Yes. Both parts share identical electrical specifications, including output current (32mA), voltage supply range (1.65V ~ 5.5V), and operating temperature (-40°C ~ 85°C). The SN74LVC2G157DCTR is available in active status with equivalent packaging and compliance certifications.

Q: What are the key differences between the Texas Instruments and Toshiba substitutes?

A: The primary differences are output current capability (32mA for Texas Instruments versus 8mA for Toshiba) and minimum supply voltage (1.65V for Texas Instruments versus 2V for Toshiba). Both maintain the same circuit configuration, operating temperature range, and compliance status.

Q: Is the TC7WH157FU,LJ(CT suitable for all applications using the original part?

A: The Toshiba substitute is suitable only for applications where output current requirements do not exceed 8mA and minimum supply voltage is 2V or higher. Applications requiring the full 32mA output current or operation below 2V require the Texas Instruments substitute.

Q: Are package footprints compatible between all three parts?

A: All three parts use 8-pin surface mount packages (8-LSSOP, 8-MSOP, or 8-TSSOP variants). Standard 8-MSOP footprints are compatible across all parts. Verify specific package designations for your PCB layout to ensure proper fit.

Q: What compliance certifications apply to these substitutes?

A: All three parts are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting standard production and environmental requirements. REACH status is unaffected for all parts.