74F157APC Equivalent & Substitute Parts

Part Overview

The 74F157APC is a 4 x 2:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The 74F157 series provides single-supply multiplexing functionality suitable for digital logic applications requiring data selection across multiple input channels.

Substiute Parts

74F157APC

onsemiIn Stock: 505674F157APC Datasheet

Current PartRFQ

SN74F157AN

Texas InstrumentsIn Stock: 3481SN74F157AN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F157APC is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: 4 x 2:1 multiplexer topology
• Package Type: 16-DIP (0.300", 7.62mm) form factor
• Mounting Type: Through-hole technology
• Electrical Specifications: Single supply voltage range (4.5V ~ 5.5V), output current ratings (1mA high, 20mA low)
• Operating Temperature Range: 0°C ~ 70°C
• Series Compatibility: 74F logic family

The SN74F157AN from Texas Instruments meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The SN74F157AN is the primary substitute for the 74F157APC. This selection is based on:

• Functional Equivalence: Identical circuit configuration, electrical specifications, and pin compatibility within the 16-DIP package
• Product Status: The SN74F157AN maintains active production status, ensuring long-term availability and supply chain reliability
• Compliance: The SN74F157AN is RoHS3 compliant, meeting current environmental and regulatory standards
• Regulatory Alignment: Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99)

For applications currently using the obsolete 74F157APC, direct substitution with the SN74F157AN requires no circuit modifications or design changes.

Frequently Asked Questions (FAQ)

Q: Can the SN74F157AN replace the 74F157APC in existing designs?

A: Yes. The SN74F157AN is a direct functional equivalent with identical pin configuration, electrical specifications, and package dimensions. No circuit modifications are required.

Q: Are there differences in packaging between these parts?

A: Both parts use the 16-DIP (0.300", 7.62mm) through-hole package. The primary difference is packaging format: the 74F157APC uses standard packaging, while the SN74F157AN is supplied in tube packaging. This does not affect electrical performance or mechanical compatibility.

Q: What is the significance of the product status difference?

A: The 74F157APC is obsolete, meaning onsemi has discontinued production. The SN74F157AN is active, ensuring continued availability from Texas Instruments. For new designs and long-term production, the SN74F157AN is the recommended choice.

Q: Are there compliance or regulatory differences?

A: The SN74F157AN is RoHS3 compliant, while the 74F157APC does not specify RoHS status. Both parts are REACH unaffected and classified as EAR99. For applications requiring RoHS compliance, the SN74F157AN is the appropriate selection.

Q: Do these parts have the same electrical performance?

A: Yes. Both parts operate within identical voltage supply ranges (4.5V ~ 5.5V), have matching output current specifications (1mA high, 20mA low), and support the same operating temperature range (0°C ~ 70°C).