74LCXR2245WM Equivalent & Substitute Parts

Part Overview

The 74LCXR2245WM is a non-inverting transceiver IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability. Designed for 3.6V operation, this component is classified as obsolete. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

74LCXR2245WM

onsemiIn Stock: 95374LCXR2245WM Datasheet

Current PartRFQ

74LVC2245AD,118

Nexperia USA Inc.In Stock: 307874LVC2245AD,118 Datasheet

DirectRFQ

SN74LVCR2245ADW

Texas InstrumentsIn Stock: 1570SN74LVCR2245ADW Datasheet

SimilarRFQ

SN74LVCR2245ADWR

Texas InstrumentsIn Stock: 761SN74LVCR2245ADWR Datasheet

SimilarRFQ

SN74LVCR2245ANSR

Texas InstrumentsIn Stock: 1026SN74LVCR2245ANSR Datasheet

SimilarRFQ

TC74LCX245F(EL,K,F

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LCXR2245WM is determined by the following critical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Output Current Capability: 12mA minimum (High and Low)
• Supply Voltage Range: Must support 2V ~ 3.6V operation
• Package / Case: 20-SOIC form factor
• Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Substitutes meet all electrical and mechanical parameters within the specified ranges.

Similar Substitutes maintain functional equivalence and package compatibility but may have extended operating temperature ranges, improved voltage supply flexibility, or enhanced current drive capabilities that exceed the original specification.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Recommended for Pin-Compatible Replacement):

74LVC2245AD,118 (Nexperia USA Inc.) is the primary direct substitute. It maintains identical electrical specifications (12mA output current, 3-state output) and package dimensions (20-SOIC, 0.295" width). This part is active and ROHS3 compliant, providing long-term availability and regulatory compliance. The extended supply voltage range (1.2V ~ 3.6V) and operating temperature range (-40°C ~ 125°C) exceed the original specification, offering design flexibility without compromising compatibility.

Active Alternatives (Texas Instruments):

SN74LVCR2245ADW, SN74LVCR2245ADWR, and SN74LVCR2245ANSR are all active Texas Instruments products within the 74LVCR series. These parts maintain the required 12mA output current and 3-state output configuration. All three are ROHS3 compliant with extended operating temperature ranges (-40°C ~ 125°C). SN74LVCR2245ADW and SN74LVCR2245ADWR retain the original 20-SOIC package width (0.295", 7.50mm), while SN74LVCR2245ANSR uses a narrower 20-SO package (0.209", 5.30mm). Supply voltage ranges (1.65V ~ 3.6V) remain compatible with the original 2V ~ 3.6V specification.

Enhanced Performance Alternative:

TC74LCX245F(EL,K,F (Toshiba Semiconductor and Storage) provides increased output current capability (24mA vs. 12mA), which may benefit applications requiring higher drive strength. This part is active and RoHS compliant. Operating temperature range matches the original specification (-40°C ~ 85°C). Package width is narrower (0.209", 5.30mm). Supply voltage range (1.65V ~ 3.6V) is compatible with the original design.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74LCXR2245WM with 74LVC2245AD,118?

A: Yes. Both parts share identical logic type (non-inverting transceiver), element count (1), bit width (8), output type (3-state), and output current specifications (12mA). Package dimensions are identical (20-SOIC, 0.295" width). The 74LVC2245AD,118 is active and ROHS3 compliant, making it the recommended direct substitute.

Q: What is the difference between the Texas Instruments SN74LVCR2245 variants?

A: All three Texas Instruments variants (SN74LVCR2245ADW, SN74LVCR2245ADWR, SN74LVCR2245ANSR) are functionally equivalent with identical electrical specifications. The primary differences are packaging format (Tube vs. Tape & Reel) and package width. SN74LVCR2245ADW and SN74LVCR2245ADWR use the wider 20-SOIC package (0.295", 7.50mm), while SN74LVCR2245ANSR uses the narrower 20-SO package (0.209", 5.30mm). Selection depends on PCB layout requirements and procurement preferences.

Q: Why does TC74LCX245F(EL,K,F have higher output current (24mA)?

A: The TC74LCX245F(EL,K,F is specified with 24mA output current capability compared to 12mA for the original part. This enhanced drive strength is a design characteristic of the Toshiba 74LCX series and does not affect compatibility. Applications requiring higher current drive may benefit from this specification, while standard applications will operate identically.

Q: Are all substitute parts ROHS compliant?

A: Yes. All active substitute parts listed are either ROHS3 compliant (Nexperia and Texas Instruments) or RoHS compliant (Toshiba). The original 74LCXR2245WM is REACH unaffected. All substitutes meet current environmental and regulatory requirements.

Q: What is the impact of the narrower package width in SN74LVCR2245ANSR and TC74LCX245F(EL,K,F?

A: The narrower 20-SO package (0.209", 5.30mm width) versus the original 20-SOIC (0.295", 7.50mm width) affects PCB footprint dimensions. If your design uses a footprint specific to the wider package, mechanical compatibility must be verified. Pin count and electrical specifications remain identical, but physical placement and board layout may require adjustment.

Q: Can I use these substitutes in applications operating below 2V?

A: The original 74LCXR2245WM specifies a minimum supply voltage of 2V. Most substitute parts (SN74LVCR series and TC74LCX245F) specify 1.65V minimum, which is compatible with the original specification. The 74LVC2245AD,118 extends this to 1.2V minimum. If your application operates below 2V, verify that the substitute part's lower voltage limit meets your system requirements.