74LVC240APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC240APW,112 is a Buffer, Inverting logic IC manufactured by Nexperia USA Inc., featuring 2 elements with 4 bits per element and 3-state output capability. This component operates across a supply voltage range of 1.2V to 3.6V and is housed in a 20-TSSOP package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC240APW,112
Manufacturer	Nexperia USA Inc.
Logic Type	Buffer, Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.2V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74LVC240APW,112 is determined by the following critical parameters:

Logic Type: Buffer, Inverting (2 elements, 4 bits per element)
Output Type: 3-State
Output Current: 24mA (High and Low)
Package / Case: 20-TSSOP or compatible package variants
Operating Temperature Range: Minimum -40°C to 125°C
Supply Voltage Range: Minimum 1.2V to 3.6V overlap

Substitute parts are grouped into two categories:

Category 1: Direct Pin-Compatible Substitutes (20-TSSOP Package) Parts with identical 20-TSSOP packaging and full parameter compatibility with the original specification.

Category 2: Functional Equivalents with Package Variants (20-SSOP, 20-TVSOP) Parts with identical electrical specifications but different package geometries, requiring PCB layout modification.

Category 3: Series Variants (74LCX, 74LVCZ Series) Parts from alternative logic series with compatible electrical characteristics but potentially different operating ranges.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Type	Current (mA)	Supply Voltage (V)	Temp Range (°C)	Package	Status
74LVC240APW,112	Nexperia USA Inc.	Buffer, Inverting	2 / 4	3-State	24, 24	1.2 ~ 3.6	-40 ~ 125	20-TSSOP	Obsolete
SN74LVC240APW	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-TSSOP	Active
SN74LVC240APWR	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-TSSOP	Active
SN74LVC240APWT	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-TSSOP	Active
SN74LVC240APWRG4	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-TSSOP	Discontinued at DiGi Electronics
SN74LVC240ADBR	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-SSOP	Active
SN74LVC240ADGVR	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	20-TVSOP	Active
74LCX240MTCX	Fairchild Semiconductor	Buffer, Inverting	2 / 4	3-State	24, 24	2.0 ~ 3.6	-40 ~ 85	20-TSSOP	Active
MC74LCX240DTR2G	onsemi	Buffer, Inverting	2 / 4	3-State	24, 24	2.0 ~ 3.6	-40 ~ 85	20-TSSOP	Active
SN74LVCZ240APW	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	2.7 ~ 3.6	-40 ~ 85	20-TSSOP	Active
SN74LVCZ240APWR	Texas Instruments	Buffer, Inverting	2 / 4	3-State	24, 24	2.7 ~ 3.6	-40 ~ 85	20-TSSOP	Active

Engineering Selection Recommendations

Primary Recommendation: SN74LVC240APW or SN74LVC240APWR

Texas Instruments SN74LVC240APW and SN74LVC240APWR are the preferred substitutes. Both are active products with identical electrical specifications to the original 74LVC240APW,112, including the full supply voltage range of 1.65V to 3.6V and operating temperature range of -40°C to 125°C. Both are ROHS3 compliant with MSL 1 rating. The primary difference is packaging: APW is supplied in Tube format, while APWR is supplied in Tape & Reel format. Selection depends on procurement and assembly requirements.

Secondary Recommendation: SN74LVC240APWT

SN74LVC240APWT from Texas Instruments provides identical electrical performance in 20-TSSOP packaging with Tape & Reel delivery. This part is active and fully compliant with RoHS3 and REACH requirements.

Alternative for Package Flexibility: SN74LVC240ADBR

SN74LVC240ADBR is an active Texas Instruments product with identical electrical specifications but uses 20-SSOP packaging (0.209", 5.30mm Width) instead of 20-TSSOP. This option is suitable only if PCB layout can accommodate the wider package footprint.

Alternative for Package Flexibility: SN74LVC240ADGVR

SN74LVC240ADGVR is an active Texas Instruments product with identical electrical specifications but uses 20-TVSOP packaging. This option is suitable only if PCB layout can accommodate the alternative package geometry.

Series Alternatives: 74LCX240MTCX and MC74LCX240DTR2G

Fairchild Semiconductor 74LCX240MTCX and onsemi MC74LCX240DTR2G are active products from the 74LCX series with compatible electrical specifications. Both operate at 2.0V to 3.6V supply voltage and -40°C to 85°C temperature range. These parts are suitable for applications where the reduced supply voltage floor (2.0V vs. 1.2V) and narrower temperature range are acceptable.

Restricted Recommendation: SN74LVCZ240APW and SN74LVCZ240APWR

Texas Instruments 74LVCZ series parts (SN74LVCZ240APW and SN74LVCZ240APWR) are active products with 3-state output capability. These parts operate at 2.7V to 3.6V supply voltage and -40°C to 85°C temperature range. Use only in applications where the higher supply voltage floor and narrower temperature range are compatible with system requirements.

Avoid: SN74LVC240APWRG4

SN74LVC240APWRG4 is discontinued at DiGi Electronics and should not be selected for new designs despite active status at other distributors.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC240ADBR as a direct replacement for 74LVC240APW,112?

A: SN74LVC240ADBR has identical electrical specifications but uses 20-SSOP packaging instead of 20-TSSOP. Direct PCB substitution is not possible without layout modification. The 20-SSOP package is wider (5.30mm vs. 4.40mm), requiring footprint redesign.

Q: What is the difference between SN74LVC240APW and SN74LVC240APWR?

A: Both parts have identical electrical specifications and 20-TSSOP packaging. The difference is in delivery format: APW is supplied in Tube packaging, while APWR is supplied in Tape & Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: Can I substitute 74LCX240MTCX for 74LVC240APW,112?

A: 74LCX240MTCX is functionally equivalent with identical logic type, element count, and output current. However, the supply voltage range is 2.0V to 3.6V (vs. 1.2V to 3.6V for the original), and the operating temperature range is -40°C to 85°C (vs. -40°C to 125°C). Use only if your application operates within these narrower ranges.

Q: Why is the original 74LVC240APW,112 marked as obsolete?

A: The part is obsolete according to Nexperia USA Inc. status. Active equivalents from Texas Instruments, Fairchild Semiconductor, and onsemi provide continued design support and procurement availability.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are ROHS3 compliant. Verify specific compliance documentation with your supplier for regulatory requirements in your application.

Q: What is the difference between 74LVC and 74LVCZ series?

A: The 74LVC series operates at 1.65V to 3.6V supply voltage with -40°C to 125°C temperature range. The 74LVCZ series operates at 2.7V to 3.6V supply voltage with -40°C to 85°C temperature range. The 74LVCZ series has a higher minimum supply voltage and narrower temperature range.

Q: Can I use SN74LVC240ADGVR in place of the original part?

A: SN74LVC240ADGVR has identical electrical specifications but uses 20-TVSOP packaging instead of 20-TSSOP. Direct PCB substitution is not possible without layout modification. The package geometry differs, requiring footprint redesign.

Q: What inventory levels are available for substitute parts?

A: Inventory levels vary by part and supplier. SN74LVC240APWR has 7,442 pieces in stock, SN74LVC240APWRG4 has 3,300 pieces, and MC74LCX240DTR2G has 3,970 pieces. Verify current availability with your component supplier before design finalization.

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