SN74AS652DWRE4 Equivalent & Substitute Parts

Part Overview

The SN74AS652DWRE4 is a non-inverting transceiver IC manufactured by Texas Instruments, designed for 8-bit data transmission with 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 functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

SN74AS652DWRE4

Texas InstrumentsIn Stock: 1064SN74AS652DWRE4 Datasheet

Current PartRFQ

SN74AS652DW

Texas InstrumentsIn Stock: 1021SN74AS652DW Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74AS652DWRE4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 15mA, 48mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: 0°C ~ 70°C (TA)
• Package / Case: 24-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

The SN74AS652DW meets all substitution criteria as a direct functional equivalent. Both parts share identical electrical specifications, pinout configuration, and package geometry. The primary distinction is product status: the SN74AS652DW is classified as active, whereas the SN74AS652DWRE4 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS652DW is a direct substitute for the SN74AS652DWRE4. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The SN74AS652DW carries active product status, ensuring continued availability and manufacturing support from Texas Instruments. For applications currently using the obsolete SN74AS652DWRE4, transition to the SN74AS652DW provides functional continuity with improved supply chain reliability. No circuit modifications or design changes are required for this substitution.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS652DW directly replace the SN74AS652DWRE4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. Pin configuration, voltage supply requirements, output current ratings, and operating temperature ranges are equivalent. Direct PCB substitution is possible without design modification.

Q: What is the difference between SN74AS652DWRE4 and SN74AS652DW?

A: The primary difference is product status. The SN74AS652DWRE4 is obsolete, while the SN74AS652DW is active. The suffix "RE4" in the main part number indicates a specific packaging or qualification variant. Both parts share the same base product number (74AS652) and identical electrical specifications.

Q: Are there packaging differences between these parts?

A: Both parts use the 24-SOIC surface mount package with identical dimensions (0.295", 7.50mm width). The SN74AS652DW is supplied in tube packaging, while the SN74AS652DWRE4 was supplied in alternative packaging. This does not affect electrical performance or PCB compatibility.

Q: Do both parts meet current compliance standards?

A: Yes. Both the SN74AS652DWRE4 and SN74AS652DW are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.