74LVC623ADB,118 Equivalent & Substitute Parts

Part Overview

The 74LVC623ADB,118 is a non-inverting transceiver IC manufactured by NXP USA Inc., designed for 3-state output logic applications in 20-SSOP surface mount packaging. This component operates across a supply voltage range of 1.2V to 3.6V and is rated for -40°C to 125°C operating temperature. The part is classified as obsolete, making identification of active equivalent substitutes essential for ongoing production and maintenance applications.

Substiute Parts

74LVC623ADB,118

NXP USA Inc.In Stock: 114674LVC623ADB,118 Datasheet

Current PartRFQ

SN74LVC245ADBR

Texas InstrumentsIn Stock: 25190SN74LVC245ADBR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC623ADB,118 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution 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-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 125°C (TA)
• RoHS Status: ROHS3 Compliant

Voltage Supply Compatibility: The 74LVC623ADB,118 operates at 1.2V ~ 3.6V. Substitute parts must support this voltage range or a range that fully encompasses it. Parts with a minimum supply voltage requirement higher than 1.2V or maximum lower than 3.6V are not direct substitutes.

The SN74LVC245ADBR from Texas Instruments meets all critical parameters with a supply voltage range of 1.65V ~ 3.6V, which overlaps the original specification within the 1.65V to 3.6V window.

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC245ADBR is an active product from Texas Instruments and serves as the primary substitute for the obsolete 74LVC623ADB,118. Both components are ROHS3 compliant and carry identical MSL ratings, ensuring regulatory and environmental compatibility.

The supply voltage range difference (1.2V ~ 3.6V versus 1.65V ~ 3.6V) represents the only electrical parameter variance. Applications operating at supply voltages below 1.65V will not be compatible with the SN74LVC245ADBR substitute. For such applications, alternative solutions must be evaluated.

The SN74LVC245ADBR is available in higher inventory quantities (25,100 pcs) compared to the original part, supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC245ADBR directly replace the 74LVC623ADB,118 in all applications?

A: Direct replacement is valid for applications operating at supply voltages of 1.65V or higher. Applications requiring operation below 1.65V require alternative component selection.

Q: Are the package dimensions identical between these parts?

A: Yes. Both components use 20-SSOP packaging with identical dimensions (0.209", 5.30mm Width), ensuring PCB footprint compatibility and no layout modifications are required.

Q: What is the significance of the product status difference?

A: The 74LVC623ADB,118 is classified as obsolete, indicating NXP has discontinued production. The SN74LVC245ADBR is active, meaning Texas Instruments continues manufacturing and supporting this component for new designs and ongoing production.

Q: Are there compliance differences between the two parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited), ensuring equivalent regulatory and environmental compliance.

Q: What output current specifications apply to both parts?

A: Both the 74LVC623ADB,118 and SN74LVC245ADBR provide 24mA output current capability for both high and low states, ensuring identical drive capability for connected logic circuits.