74ACT258MTCX Equivalent & Substitute Parts

Part Overview

The 74ACT258MTCX is a 4 x 2:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The part operates with a single 4.5V to 5.5V supply and delivers 24mA output current capability in both high and low states, suitable for standard TTL logic applications requiring multiplexing functionality.

Substiute Parts

74ACT258MTCX

onsemiIn Stock: 83574ACT258MTCX Datasheet

Current PartRFQ

MC74ACT157DTR2G

onsemiIn Stock: 37744MC74ACT157DTR2G Datasheet

Parametric EquivalentRFQ

74LVC257APW,118

Nexperia USA Inc.In Stock: 713874LVC257APW,118 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACT258MTCX is determined by strict alignment of the following parameters:

• Circuit configuration: 4 x 2:1 multiplexer topology
• Package type: 16-TSSOP surface mount form factor
• Output current capability: 24mA high and low
• Single supply operation
• Moisture sensitivity level: MSL 1

Two substitute parts meet these criteria with the following distinctions:

Parametric Equivalent (MC74ACT157DTR2G): Maintains identical electrical specifications and 74ACT series logic family characteristics. Differs only in base product number (74ACT157 vs. 74ACT258) and product status (Active vs. Obsolete). Packaging format is Tape & Reel (TR).

Similar Substitute (74LVC257APW,118): Maintains identical circuit configuration, package type, and output current specifications. Operates across an extended supply voltage range (1.2V ~ 3.6V) and extended operating temperature range (-40°C ~ 125°C). Belongs to the 74LVC logic family rather than 74ACT. Packaging format is Tape & Reel (TR).

Parameter Comparison

Engineering Selection Recommendations

MC74ACT157DTR2G is the direct parametric equivalent for applications requiring strict adherence to 74ACT series specifications and 4.5V ~ 5.5V supply voltage operation. This part maintains identical electrical performance and operating temperature range. The part is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

74LVC257APW,118 is suitable for applications that can accommodate extended supply voltage range (1.2V ~ 3.6V) and extended operating temperature range (-40°C ~ 125°C). This part is appropriate for low-voltage logic designs and applications requiring broader temperature operation. The part is in active production status with ROHS3 compliance certification.

Selection between these substitutes depends on circuit supply voltage requirements and operating temperature specifications. Both parts are available in active production status with equivalent compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT157DTR2G directly replace 74ACT258MTCX in existing designs?

A: Yes, for applications operating at 4.5V ~ 5.5V supply voltage and -40°C ~ 85°C temperature range. Both parts maintain identical electrical specifications, output current capability, and package form factor. Verify pinout compatibility with your specific application schematic.

Q: What is the primary difference between MC74ACT157DTR2G and 74LVC257APW,118?

A: The primary differences are logic family (74ACT vs. 74LVC), supply voltage range (4.5V ~ 5.5V vs. 1.2V ~ 3.6V), and operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C). Both maintain identical circuit configuration and output current specifications.

Q: Can 74LVC257APW,118 operate at standard 5V logic levels?

A: Yes. The 74LVC257APW,118 operates across 1.2V ~ 3.6V supply range, which includes standard 5V logic compatibility through its upper voltage specification. However, verify that your specific application circuit design accommodates the 74LVC logic family characteristics.

Q: Are all substitute parts available in the same package type?

A: All three parts use 16-TSSOP surface mount packaging. MC74ACT157DTR2G and 74LVC257APW,118 are supplied in Tape & Reel (TR) format, while the original 74ACT258MTCX packaging format is not specified in available data.

Q: What compliance certifications apply to these substitute parts?

A: MC74ACT157DTR2G and 74LVC257APW,118 both carry ROHS3 compliance certification. All parts are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001. MSL rating is 1 (Unlimited) for all parts.