74LCXR2245WMX Equivalent & Substitute Parts

Part Overview

The 74LCXR2245WMX is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit data bus applications with 3-state output capability. Operating across a 2V to 3.6V supply range, this component is classified as obsolete product status. Due to its obsolescence, identifying functionally equivalent active alternatives is essential for ongoing design support, production continuity, and long-term component availability.

Substiute Parts

74LCXR2245WMX

onsemiIn Stock: 97674LCXR2245WMX Datasheet

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SN74LVCR2245ADW

Texas InstrumentsIn Stock: 1570SN74LVCR2245ADW Datasheet

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SN74LVCR2245ADWR

Texas InstrumentsIn Stock: 761SN74LVCR2245ADWR Datasheet

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SN74LVCR2245ANSR

Texas InstrumentsIn Stock: 1026SN74LVCR2245ANSR Datasheet

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TC74LCX245F(EL,K,F

Toshiba Semiconductor and StorageIn Stock: 1072TC74LCX245F(EL,K,F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LCXR2245WMX is determined by the following critical parameters:

Core Functional Requirements:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Output Current Capability: Minimum 12mA per output (High and Low)

Electrical Compatibility:

• Voltage Supply Range: Must encompass or exceed 2V ~ 3.6V
• Operating Temperature: Must support -40°C ~ 85°C minimum

Physical Compatibility:

• Package / Case: 20-SOIC form factor (pin count and pitch compatibility)
• Mounting Type: Surface Mount

Substitute parts meeting these criteria maintain functional and electrical equivalence while offering improved product status (Active) and enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

SN74LVCR2245ADW and SN74LVCR2245ADWR are direct functional equivalents manufactured by Texas Instruments. Both maintain identical electrical specifications (12mA output current, 1.65V ~ 3.6V supply range) and package form factor (20-SOIC, 0.295" width). These parts offer extended operating temperature range (-40°C ~ 125°C) and active product status with ROHS3 compliance. Selection between ADW (Tube packaging) and ADWR (Tape & Reel packaging) depends on procurement and assembly requirements.

Secondary Substitute (Package Variant):

SN74LVCR2245ANSR is functionally equivalent but uses a narrower 20-SOIC package (0.209" width) compared to the original 0.295" width. This package difference requires PCB layout verification for pin-to-pin compatibility. Active product status and ROHS3 compliance are maintained.

Alternative Substitute (Enhanced Current Capability):

TC74LCX245F(EL,K,F from Toshiba Semiconductor and Storage provides doubled output current capability (24mA vs. 12mA) while maintaining all other functional parameters. This part operates within the same voltage and temperature ranges as the original and offers RoHS compliance. The enhanced current rating provides design margin for applications requiring higher drive capability.

All substitute parts maintain MSL Level 1 (Unlimited) moisture sensitivity classification and EAR99 export control status consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCR2245ANSR be used as a direct replacement for 74LCXR2245WMX?

A: SN74LVCR2245ANSR is functionally equivalent but uses a narrower package (0.209" vs. 0.295" width). Pin count and pitch remain compatible, but PCB layout must be verified to confirm physical fit within the existing footprint. Electrical performance is identical.

Q: What is the primary advantage of using TC74LCX245F(EL,K,F as a substitute?

A: TC74LCX245F(EL,K,F provides doubled output current capability (24mA vs. 12mA), offering enhanced drive strength for applications requiring higher current delivery. All other functional parameters remain equivalent to the original part.

Q: Are all substitute parts RoHS compliant?

A: Yes. SN74LVCR2245ADW, SN74LVCR2245ADWR, and SN74LVCR2245ANSR are ROHS3 compliant. TC74LCX245F(EL,K,F is RoHS compliant. All parts meet environmental compliance requirements.

Q: What is the difference between SN74LVCR2245ADW and SN74LVCR2245ADWR?

A: Both parts are electrically and functionally identical. The difference is packaging format: ADW is supplied in Tube packaging, while ADWR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and procurement preferences.

Q: Do substitute parts support the same operating temperature range as the original?

A: SN74LVCR2245ADW, SN74LVCR2245ADWR, and SN74LVCR2245ANSR support -40°C ~ 125°C, exceeding the original -40°C ~ 85°C range. TC74LCX245F(EL,K,F matches the original -40°C ~ 85°C range. All parts exceed minimum temperature requirements.

Q: Is the 74LCXR2245WMX still available for purchase?

A: The 74LCXR2245WMX is classified as obsolete. Active substitute parts (SN74LVCR2245 series and TC74LCX245F series) are recommended for new designs and ongoing production support.