74LVC623AD-Q100J Equivalent & Substitute Parts

Part Overview

The 74LVC623AD-Q100J is a non-inverting transceiver logic IC manufactured by NXP USA Inc., designed for 3-state output applications in automotive-grade environments. This device features 1 element with 8 bits per element, operating across a supply voltage range of 1.2V to 3.6V with output current capability of 24mA for both high and low states. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

74LVC623AD-Q100J

NXP USA Inc.In Stock: 107974LVC623AD-Q100J Datasheet

Current PartRFQ

SN74LVC245ADWR

Texas InstrumentsIn Stock: 100284SN74LVC245ADWR Datasheet

DirectRFQ

74LVC245AD,118

Nexperia USA Inc.In Stock: 5841274LVC245AD,118 Datasheet

Parametric EquivalentRFQ

74LVC245AD-Q100J

Nexperia USA Inc.In Stock: 97874LVC245AD-Q100J Datasheet

Parametric EquivalentRFQ

74LVCH245AD,118

Nexperia USA Inc.In Stock: 95874LVCH245AD,118 Datasheet

Parametric EquivalentRFQ

74LVCH245AD-Q100J

Nexperia USA Inc.In Stock: 296574LVCH245AD-Q100J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC623AD-Q100J are identified based on strict parametric equivalence across the following critical criteria:

Core Functional 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
• Operating Temperature: -40°C ~ 125°C (TA)
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Compliance & Environmental Parameters:

• RoHS Status: ROHS3 Compliant
• Voltage - Supply: 1.2V ~ 3.6V (or compatible range)
• Automotive Grade / AEC-Q100 qualification (where applicable)

Substitutes are grouped into two categories: Direct Manufacturer Substitutes (different manufacturer, identical electrical and mechanical specifications) and Parametric Equivalents (same or compatible electrical parameters with active product status).

Parameter Comparison

Engineering Selection Recommendations

For Automotive Applications with AEC-Q100 Requirement:

Select 74LVC245AD-Q100J or 74LVCH245AD-Q100J. Both parts maintain automotive-grade qualification and AEC-Q100 certification, ensuring compliance with automotive reliability standards. These parts are currently active in production, providing long-term availability and supply chain stability compared to the obsolete 74LVC623AD-Q100J.

For Commercial Applications without Automotive Qualification:

SN74LVC245ADWR (Texas Instruments) and 74LVC245AD,118 (Nexperia) are suitable alternatives. Both maintain identical electrical specifications and 20-SOIC packaging. Note that SN74LVC245ADWR operates at a minimum supply voltage of 1.65V, which may limit compatibility in systems requiring 1.2V operation.

For Extended Supply Voltage Range (1.2V minimum):

74LVC245AD,118, 74LVC245AD-Q100J, 74LVCH245AD,118, and 74LVCH245AD-Q100J all support the full 1.2V to 3.6V supply range. SN74LVC245ADWR is limited to 1.65V minimum and should be avoided if 1.2V operation is required.

For Maximum Inventory Availability:

SN74LVC245ADWR offers the highest stock level (100,200 pcs), followed by 74LVC245AD,118 (58,382 pcs) and 74LVCH245AD-Q100J (2,896 pcs).

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC245ADWR as a direct replacement for 74LVC623AD-Q100J in an automotive application?

A: SN74LVC245ADWR is not recommended for automotive applications requiring AEC-Q100 certification. While it matches all electrical and mechanical parameters, it lacks automotive qualification. For automotive designs, use 74LVC245AD-Q100J or 74LVCH245AD-Q100J instead.

Q: What is the difference between 74LVC245AD,118 and 74LVC245AD-Q100J?

A: Both parts are parametrically equivalent with identical electrical specifications and 20-SOIC packaging. The primary difference is that 74LVC245AD-Q100J carries automotive-grade qualification and AEC-Q100 certification, while 74LVC245AD,118 is a commercial-grade part. Select based on your application's automotive requirements.

Q: Why does SN74LVC245ADWR have a higher minimum supply voltage (1.65V) compared to other substitutes?

A: This is a manufacturer-specific design characteristic of the Texas Instruments variant. If your system operates at 1.2V, select alternatives from Nexperia (74LVC245AD,118, 74LVC245AD-Q100J, 74LVCH245AD,118, or 74LVCH245AD-Q100J) which support the full 1.2V to 3.6V range.

Q: Are all substitute parts in the same 20-SOIC package?

A: Yes. All listed substitutes use the 20-SOIC (0.295", 7.50mm Width) package, ensuring mechanical compatibility with existing PCB layouts and footprints designed for the 74LVC623AD-Q100J.

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

A: Both series maintain identical electrical specifications for this application (1 element, 8 bits per element, 3-state output, 24mA output current, -40°C to 125°C operating range). The 74LVCH series represents a newer product line from Nexperia. Selection between them should be based on availability, lead time, and automotive qualification requirements.

Q: Is the 74LVC623AD-Q100J truly obsolete, or can I still source it?

A: The part is classified as obsolete by the manufacturer. While limited inventory may exist through distributors (985 pcs noted as in stock), long-term availability is not guaranteed. For new designs or ongoing production, transition to an active substitute part to ensure supply chain continuity.