74LVC245ADTR2G Equivalent & Substitute Parts

Part Overview

The 74LVC245ADTR2G is a non-inverting transceiver IC manufactured by onsemi, designed for 8-bit bidirectional data transfer with 3-state output capability. This device operates across a supply voltage range of 1.2V to 3.6V and is housed in a 20-TSSOP surface mount package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

74LVC245ADTR2G

onsemiIn Stock: 97674LVC245ADTR2G Datasheet

Current PartRFQ

MC74LCX245DTR2G

onsemiIn Stock: 10464MC74LCX245DTR2G Datasheet

SimilarRFQ

74LVC245APW,118

NXP SemiconductorsIn Stock: 19051774LVC245APW,118 Datasheet

DirectRFQ

74LVC245APW-Q100J

Nexperia USA Inc.In Stock: 341574LVC245APW-Q100J Datasheet

Parametric EquivalentRFQ

74LVC245APW/AUJ

NXP USA Inc.In Stock: 93974LVC245APW/AUJ Datasheet

Parametric EquivalentRFQ

74LVCH245APW,118

NXP SemiconductorsIn Stock: 25760674LVCH245APW,118 Datasheet

Parametric EquivalentRFQ

74LVCH245APW-Q100J

Nexperia USA Inc.In Stock: 79874LVCH245APW-Q100J Datasheet

Parametric EquivalentRFQ

74LVCH245APW/AUJ

NXP USA Inc.In Stock: 85074LVCH245APW/AUJ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LVC245ADTR2G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Voltage Supply Compatibility: Substitutes must operate within or encompass the original 1.2V ~ 3.6V supply range. Parts with extended voltage ranges (such as 2V ~ 5.5V) are acceptable as they maintain backward compatibility with the original specification.

Temperature Range: Operating temperature range of -40°C ~ 125°C is maintained across all qualified substitutes.

Compliance Requirements: All substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Same Series - 74LVC): The 74LVC245APW,118, 74LVC245APW-Q100J, and 74LVC245APW/AUJ maintain identical electrical specifications and voltage supply range as the original 74LVC245ADTR2G. These parts are manufactured by NXP Semiconductors and Nexperia USA Inc., both active suppliers with substantial inventory availability. The 74LVC245APW-Q100J carries AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

Enhanced Series Substitutes (74LVCH): The 74LVCH245APW,118, 74LVCH245APW-Q100J, and 74LVCH245APW/AUJ represent the enhanced variant of the 74LVC series. These parts maintain identical electrical parameters and voltage supply specifications while offering active product status and higher inventory levels. The 74LVCH245APW,118 provides the highest inventory availability at 257,577 units. The 74LVCH245APW-Q100J includes AEC-Q100 automotive qualification.

Extended Voltage Range Substitute (74LCX): The MC74LCX245DTR2G from onsemi operates across an extended voltage range of 2V ~ 5.5V, encompassing the original 1.2V ~ 3.6V specification. This part maintains all other critical parameters and offers the highest inventory availability at 10,400 units. The extended temperature range of -55°C ~ 125°C provides additional operational margin. This substitute is suitable for applications where higher supply voltage tolerance is beneficial.

Product Status Consideration: All recommended substitutes maintain active product status, ensuring long-term availability and manufacturing support. The original 74LVC245ADTR2G is obsolete; transition to an active substitute is necessary for production continuity.

Frequently Asked Questions (FAQ)

Q: Can the MC74LCX245DTR2G replace the 74LVC245ADTR2G in all applications? A: The MC74LCX245DTR2G maintains all critical electrical parameters including output current, logic type, and package specifications. The extended voltage range of 2V ~ 5.5V encompasses the original 1.2V ~ 3.6V specification, making it electrically compatible. However, verify that your application does not depend on the specific 1.2V lower voltage limit of the original part.

Q: What is the difference between 74LVC and 74LVCH series substitutes? A: Both series maintain identical electrical specifications and voltage supply ranges. The 74LVCH represents an enhanced variant with improved performance characteristics. All critical parameters for substitution—output current, logic type, bit configuration, and package—are identical between the two series.

Q: Are the NXP and Nexperia variants interchangeable? A: Yes. The 74LVC245APW,118 (NXP Semiconductors), 74LVC245APW-Q100J (Nexperia USA Inc.), and 74LVC245APW/AUJ (NXP USA Inc.) maintain identical electrical specifications and package specifications. Nexperia is a subsidiary of NXP, and these parts are functionally equivalent.

Q: What does the "-Q100J" designation indicate? A: The "-Q100J" suffix indicates AEC-Q100 automotive qualification. This certification is relevant only if your application requires automotive-grade components. For non-automotive applications, standard variants without this designation are suitable.

Q: Does packaging type affect substitution compatibility? A: All substitutes use the 20-TSSOP surface mount package with identical dimensions (0.173", 4.40mm Width). Packaging variants such as Tape & Reel (TR) or Bulk refer to supply format only and do not affect electrical or mechanical compatibility on the PCB.

Q: Is the MSL (Moisture Sensitivity Level) rating the same across all substitutes? A: Yes. All substitutes maintain MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.