74LVC240AD,118 Equivalent & Substitute Parts

Part Overview

The 74LVC240AD,118 is an inverting buffer logic integrated circuit manufactured by Nexperia USA Inc. in the 74LVC series. This device functions as a 2-element, 4-bit inverting buffer with 3-state output capability, designed for low-voltage CMOS applications. The part is currently in active production status with 3054 units in stock. Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for specific assembly processes, or when supply chain optimization demands component standardization across multiple manufacturers.

Substiute Parts

74LVC240AD,118

Nexperia USA Inc.In Stock: 310974LVC240AD,118 Datasheet

Current PartRFQ

MC74LCX240DWR2G

onsemiIn Stock: 2487MC74LCX240DWR2G Datasheet

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SN74LVC240ADW

Texas InstrumentsIn Stock: 3094SN74LVC240ADW Datasheet

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SN74LVC240ADWR

Texas InstrumentsIn Stock: 2183SN74LVC240ADWR Datasheet

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SN74LVCZ240ADW

Texas InstrumentsIn Stock: 1565SN74LVCZ240ADW Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC240AD,118 is determined by the following critical parameters: logic type (buffer, inverting), number of elements (2), bits per element (4), output type (3-state), output current capability (24mA minimum for both high and low), package type (20-SOIC form factor), and surface mount compatibility. The supply voltage range and operating temperature range define the operational envelope within which substitutes must function. Parts meeting these core electrical and mechanical specifications are considered functionally equivalent, regardless of manufacturer or series designation.

The identified substitute parts fall into two categories: direct series equivalents from Texas Instruments (SN74LVC240ADW, SN74LVC240ADWR, SN74LVCZ240ADW) and cross-manufacturer equivalents (MC74LCX240DWR2G from onsemi). All substitutes maintain identical logic functionality, element count, bit configuration, and output characteristics. Packaging variations (Tube, Cut Tape & Digi-Reel, Tape & Reel) represent different distribution formats for the same 20-SOIC physical package and do not affect electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active production status and ROHS3 compliance, confirming their suitability for new designs and ongoing production. The Texas Instruments SN74LVC240ADW and SN74LVC240ADWR variants offer the closest electrical alignment with the primary part, supporting the full -40°C to 125°C operating temperature range and supply voltage down to 1.65V. These parts are available in alternative packaging formats (Tube and Cut Tape & Digi-Reel respectively) to accommodate different assembly workflows.

The SN74LVCZ240ADW from Texas Instruments operates within a narrower supply voltage window (2.7V ~ 3.6V) and reduced temperature range (-40°C ~ 85°C), making it suitable for applications where these constraints are acceptable. The MC74LCX240DWR2G from onsemi similarly operates within 2V ~ 3.6V supply range and -40°C ~ 85°C temperature range, with MSL rating of 3 requiring 168-hour moisture protection during storage and handling.

Selection between substitutes should prioritize supply voltage and temperature requirements of the target application. For applications requiring the full 1.2V minimum supply voltage of the primary part, the SN74LVC240ADW or SN74LVC240ADWR are the appropriate choices. For applications operating within 2V ~ 3.6V supply range, all substitutes are functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC240ADW be used as a direct replacement for 74LVC240AD,118?

A: Yes. Both parts share identical logic functionality, element configuration, bit count, output type, output current capability, and 20-SOIC package form factor. The primary difference is packaging format (Tube versus Tape & Reel) and manufacturer. Electrical performance is equivalent within the overlapping supply voltage range of 1.65V ~ 3.6V and operating temperature range of -40°C ~ 125°C.

Q: What is the difference between SN74LVC240ADW and SN74LVC240ADWR?

A: Both parts are identical in electrical specifications and 20-SOIC package form factor. The difference is packaging distribution: SN74LVC240ADW is supplied in Tube format, while SN74LVC240ADWR is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Why does MC74LCX240DWR2G have a different series designation (74LCX versus 74LVC)?

A: The 74LCX series from onsemi is a functionally equivalent logic family to the 74LVC series. Both implement the same inverting buffer logic with 2 elements, 4 bits per element, and 3-state output. The series designation reflects the manufacturer's product line organization but does not affect functional compatibility. The MC74LCX240DWR2G operates within 2V ~ 3.6V supply range and -40°C ~ 85°C temperature range.

Q: Is the 74LVC240AD,118 compatible with applications requiring 1.2V supply voltage?

A: The primary part 74LVC240AD,118 supports supply voltage as low as 1.2V. Among the identified substitutes, only the SN74LVC240ADW and SN74LVC240ADWR support this minimum voltage level (1.65V minimum). The SN74LVCZ240ADW and MC74LCX240DWR2G have higher minimum supply voltage requirements (2.7V and 2V respectively) and are not suitable for 1.2V applications.

Q: What does MSL rating 3 (168 Hours) mean for the MC74LCX240DWR2G?

A: Moisture Sensitivity Level 3 indicates the component requires moisture protection during storage and handling. The 168-hour specification means the part can be exposed to ambient conditions (typically 30°C, 85% relative humidity) for a maximum of 168 hours before requiring baking to remove absorbed moisture. The primary part and Texas Instruments substitutes have MSL rating 1 (Unlimited), requiring no moisture protection.

Q: Can all substitute parts be used interchangeably in the same PCB assembly?

A: Yes, all identified substitutes share the identical 20-SOIC (0.295", 7.50mm Width) package form factor and surface mount compatibility. PCB footprints, solder pad layouts, and assembly processes are identical. Substitution requires only verification that the target application's supply voltage and operating temperature requirements fall within the substitute part's specified ranges.