74LCX652MSAX Equivalent & Substitute Parts

Part Overview

The 74LCX652MSAX is a non-inverting transceiver IC manufactured by onsemi, designed for 8-bit data bus applications with 3-state output capability. This component operates across a 2V to 3.6V supply voltage range and is housed in a 24-SSOP package. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts maintain functional equivalence while offering improved availability and active product status.

Substiute Parts

74LCX652MSAX

onsemiIn Stock: 69474LCX652MSAX Datasheet

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SN74LVC652APW

Texas InstrumentsIn Stock: 1327SN74LVC652APW Datasheet

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SN74LVC652APWR

Texas InstrumentsIn Stock: 3458SN74LVC652APWR Datasheet

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SN74LVC652APWT

Texas InstrumentsIn Stock: 1842SN74LVC652APWT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LCX652MSAX is determined by the following critical parameters:

• Logic Function: Transceiver, Non-Inverting with 1 Element and 8 Bits per Element
• Output Configuration: 3-State output capability
• Drive Current: 24mA output high and low
• Supply Voltage Range: Minimum 2V operation required; substitutes support 1.65V ~ 3.6V, which encompasses the original specification
• Operating Temperature: -40°C ~ 85°C maintained across all substitutes
• Mounting and Package: Surface mount technology; package form factor differences (SSOP vs. TSSOP) are acceptable for PCB redesign scenarios

The three substitute parts (SN74LVC652APW, SN74LVC652APWR, SN74LVC652APWT) are manufactured by Texas Instruments under the 74LVC series and maintain functional equivalence with the obsolete 74LCX652MSAX. These substitutes differ only in packaging format (Tube, Tape & Reel variants) and represent the same silicon die with improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three Texas Instruments SN74LVC652 variants are functionally equivalent substitutes for the obsolete 74LCX652MSAX. Selection among the three substitute options is determined by procurement and assembly requirements:

SN74LVC652APW (Tube Packaging): Suitable for low-volume applications, prototype development, and manual assembly processes where individual component handling is required.

SN74LVC652APWR (Tape & Reel): Recommended for high-volume production runs utilizing automated pick-and-place assembly equipment. Standard reel format supports continuous manufacturing workflows.

SN74LVC652APWT (Tape & Reel): Functionally identical to SN74LVC652APWR; packaging format selection depends on supplier availability and procurement agreements.

All substitutes maintain ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The extended supply voltage range (1.65V ~ 3.6V) of the Texas Instruments parts provides additional design margin compared to the original 2V ~ 3.6V specification.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC652 series directly replace the 74LCX652MSAX without circuit modifications?

A: The SN74LVC652 maintains electrical equivalence across all critical parameters: 8-bit non-inverting transceiver function, 3-state output, 24mA drive current, and -40°C to 85°C operating temperature. The extended lower supply voltage limit (1.65V vs. 2V) is backward compatible. PCB layout modifications are required due to package form factor change from 24-SSOP to 24-TSSOP, but pin functionality remains identical.

Q: What is the difference between the three SN74LVC652 substitute options?

A: The three parts (SN74LVC652APW, SN74LVC652APWR, SN74LVC652APWT) contain identical silicon and electrical specifications. The differences are packaging formats only: Tube format for manual handling, and two Tape & Reel variants for automated assembly. Selection depends on production volume and assembly method.

Q: Are there package compatibility considerations when switching from 24-SSOP to 24-TSSOP?

A: Yes. The 24-TSSOP package is narrower (4.40mm vs. 5.30mm width) and requires PCB footprint redesign. Pin pitch and lead count remain consistent, but the physical layout on the circuit board must be updated. Electrical functionality is unaffected by this package change.

Q: Do the substitute parts meet current regulatory compliance standards?

A: All three SN74LVC652 variants are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The obsolete 74LCX652MSAX does not carry these certifications, making the substitutes preferable for new designs and ongoing production.

Q: What is the inventory status of these substitute parts?

A: SN74LVC652APWR (Tape & Reel) has the highest inventory availability at 3400 units. SN74LVC652APWT (Tape & Reel) has 1776 units in stock. SN74LVC652APW (Tube) has 1266 units available. All substitutes are classified as active products with ongoing manufacturing support.