CD74ACT157PW Equivalent & Substitute Parts

Part Overview

The CD74ACT157PW is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The CD74ACT157PW belongs to the 74ACT logic family and provides four independent 2:1 multiplexer circuits in a single package.

Substiute Parts

CD74ACT157PW

Texas InstrumentsIn Stock: 1799CD74ACT157PW Datasheet

Current PartRFQ

CD74ACT157PWR

Texas InstrumentsIn Stock: 913CD74ACT157PWR Datasheet

DirectRFQ

MC74ACT157DTR2G

onsemiIn Stock: 37744MC74ACT157DTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74ACT157PW are qualified based on the following electrical and mechanical parameters:

• Identical circuit configuration: 4 x 2:1 multiplexer topology
• Matching package type: 16-TSSOP surface mount package with identical physical dimensions
• Compatible voltage supply range: 4.5V ~ 5.5V single supply operation
• Equivalent output current specifications: 24mA high and low output current
• Same logic family: 74ACT series
• Identical base product number: 74ACT157
• RoHS3 compliance and MSL Level 1 rating

Substitutes are grouped by packaging format (Tube vs. Tape & Reel) and manufacturer, with all electrical characteristics remaining constant across qualified alternatives.

Parameter Comparison

Engineering Selection Recommendations

CD74ACT157PWR is the direct equivalent substitute from Texas Instruments, maintaining identical electrical specifications and operating temperature range (-55°C ~ 125°C). This part differs only in packaging format (Tape & Reel instead of Tube) and is currently in active production status.

MC74ACT157DTR2G from onsemi is a qualified alternative that maintains all critical electrical parameters and package dimensions. This part operates within a narrower temperature range (-40°C ~ 85°C) compared to the original specification. Selection of this substitute should be based on application temperature requirements. Both substitute parts carry ROHS3 compliance and MSL Level 1 ratings identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can CD74ACT157PWR be used as a direct replacement for CD74ACT157PW?

A: Yes. Both parts are manufactured by Texas Instruments with identical electrical specifications, circuit configuration, and operating temperature range. The only difference is packaging format: CD74ACT157PW is supplied in Tube packaging, while CD74ACT157PWR is supplied in Tape & Reel format. Electrical performance and pinout are identical.

Q: What is the key difference between MC74ACT157DTR2G and the Texas Instruments alternatives?

A: MC74ACT157DTR2G is manufactured by onsemi and maintains all electrical parameters and package specifications. The operating temperature range is -40°C ~ 85°C, which is narrower than the Texas Instruments versions (-55°C ~ 125°C). Selection depends on application temperature requirements.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 16-TSSOP package with identical pinout and electrical characteristics. They are mechanically and electrically interchangeable within their specified operating conditions.

Q: Does packaging format affect electrical performance?

A: No. Tube and Tape & Reel packaging formats contain identical components. The packaging difference affects only handling, storage, and automated assembly processes. Electrical performance is unchanged.

Q: Are all substitute parts RoHS compliant?

A: Yes. All parts listed are ROHS3 compliant with MSL Level 1 moisture sensitivity rating, matching the original CD74ACT157PW specifications.