SN74F657DWRE4 Equivalent & Substitute Parts

Part Overview

The SN74F657DWRE4 is a non-inverting transceiver IC manufactured by Texas Instruments, featuring 1 element with 8 bits per element and 3-state output capability. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 24-SOIC surface mount package. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

SN74F657DWRE4

Texas InstrumentsIn Stock: 1099SN74F657DWRE4 Datasheet

Current PartRFQ

SN74F657DW

Texas InstrumentsIn Stock: 872SN74F657DW Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74F657DWRE4 is determined by strict equivalence across the following critical parameters:

• Logic type and function: Non-inverting transceiver configuration
• Element and bit configuration: 1 element, 8 bits per element
• Output characteristics: 3-state output capability
• Electrical specifications: 4.5V to 5.5V supply voltage, matching output current ratings (3mA/24mA and 12mA/64mA)
• Package specification: 24-SOIC surface mount package with identical physical dimensions
• Operating temperature range: 0°C to 70°C
• Compliance standards: ROHS3 compliance and REACH unaffected status

The SN74F657DW qualifies as a direct substitute based on identical electrical and mechanical parameters. The primary distinction is product status: the substitute part is active in production, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SN74F657DW is a direct functional and electrical equivalent to the SN74F657DWRE4. Both parts maintain identical electrical specifications, package dimensions, and compliance certifications. The SN74F657DW is the recommended selection for new designs and component replacement applications due to its active production status, ensuring long-term availability and supply chain continuity. Both parts satisfy ROHS3 compliance and REACH requirements, making either suitable for regulated applications where environmental compliance is mandated.

Frequently Asked Questions (FAQ)

Q: Can the SN74F657DW be used as a direct replacement for the SN74F657DWRE4?

A: Yes. Both parts are electrically and mechanically identical. They share the same logic type, element configuration, output characteristics, supply voltage range, operating temperature range, and 24-SOIC package specification. The SN74F657DW is preferred due to its active production status.

Q: What is the difference between SN74F657DWRE4 and SN74F657DW?

A: The primary difference is product status. The SN74F657DWRE4 is obsolete, while the SN74F657DW is active. All electrical and mechanical parameters are identical.

Q: Are there any packaging differences between these parts?

A: No. Both parts use the 24-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm width). Packaging material differs only in form factor: the SN74F657DWRE4 uses tape and reel packaging, while the SN74F657DW uses tube packaging. This does not affect electrical performance or PCB compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74F657DWRE4 and SN74F657DW are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What output current specifications should I verify for my application?

A: Both parts provide identical output current ratings: 3mA and 24mA for high output, and 12mA and 64mA for low output. Verify that your circuit design accommodates these current levels.