74LVC244ABZX Equivalent & Substitute Parts

Part Overview

The 74LVC244ABZX is a non-inverting buffer logic integrated circuit manufactured by Nexperia USA Inc. This device functions as a 2-element, 4-bit per element buffer with 3-state output capability, designed for low-voltage CMOS applications. The part operates across a supply voltage range of 1.65V to 3.6V and is housed in a 20-DHXQFN surface mount package with exposed pad. The 74LVC244ABZX maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining identical electrical and functional performance.

Substiute Parts

74LVC244ABZX

Nexperia USA Inc.In Stock: 363374LVC244ABZX Datasheet

Current PartRFQ

SN74LVC244ARWPR

Texas InstrumentsIn Stock: 25462SN74LVC244ARWPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC244ABZX is determined by strict equivalence across all critical electrical and functional parameters. The substitute part SN74LVC244ARWPR is classified as a parametric equivalent based on the following matching criteria:

Matching Parameters:

• Logic type: Buffer, Non-Inverting
• Number of elements: 2
• Number of bits per element: 4
• Output type: 3-State
• Output current specifications: 24mA high, 24mA low
• Supply voltage range: 1.65V ~ 3.6V
• Operating temperature range: -40°C ~ 125°C (TA)
• Mounting type: Surface Mount
• Base product number: 74LVC244
• RoHS3 compliance status
• Moisture sensitivity level: 1 (Unlimited)
• REACH unaffected status
• ECCN and HTSUS classifications

The substitute part is manufactured by Texas Instruments and operates within identical electrical specifications. Both parts belong to the 74LVC logic series and provide equivalent functional performance in applications requiring non-inverting buffer functionality with 3-state output control.

Parameter Comparison

Engineering Selection Recommendations

Both the 74LVC244ABZX and SN74LVC244ARWPR are active product offerings with full regulatory compliance. Selection between these parts is based on availability, supply chain considerations, and design requirements rather than electrical performance differences.

The 74LVC244ABZX (Nexperia) is suitable for applications where Nexperia component qualification is specified or preferred. The SN74LVC244ARWPR (Texas Instruments) provides an alternative source with higher current inventory availability (25,400 pieces versus 3,538 pieces).

Both parts satisfy RoHS3 compliance requirements and carry unlimited moisture sensitivity ratings, eliminating special handling or storage considerations. The identical electrical specifications, operating temperature range, and supply voltage requirements ensure direct functional interchangeability in circuit designs.

Package considerations are minimal, as both parts utilize the 20-XFQFN exposed pad configuration. Physical dimensions differ slightly (2x3.2mm for Nexperia versus 3.3x2.5mm for Texas Instruments), but both conform to the same 20-pin QFN footprint standard.

Frequently Asked Questions (FAQ)

Q: Are the 74LVC244ABZX and SN74LVC244ARWPR electrically identical?

A: Yes. Both parts share identical electrical specifications including supply voltage range (1.65V ~ 3.6V), output current ratings (24mA high and low), operating temperature range (-40°C ~ 125°C), and logic functionality (2-element, 4-bit non-inverting buffer with 3-state output).

Q: Can I substitute the SN74LVC244ARWPR for the 74LVC244ABZX in an existing design?

A: Yes. The parts are parametric equivalents with matching electrical and functional characteristics. Both operate within identical specifications and carry the same regulatory certifications.

Q: What are the physical differences between these parts?

A: The 74LVC244ABZX is packaged in a 20-DHXQFN (2x3.2mm) configuration, while the SN74LVC244ARWPR uses a 20-X1QFN (3.3x2.5mm) package. Both conform to the 20-pin QFN standard with exposed pad. PCB layout and footprint design must accommodate the specific package dimensions of the selected part.

Q: Do both parts require special handling or storage?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control or baking requirements during storage or handling.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8542.39.0001. Regulatory requirements are identical.

Q: Which part should I select based on availability?

A: The SN74LVC244ARWPR (Texas Instruments) currently has higher inventory availability at 25,400 pieces compared to 3,538 pieces for the 74LVC244ABZX (Nexperia). Selection should consider project timeline and supply chain requirements.

Q: Are there any performance differences in output drive capability?

A: No. Both parts provide identical output current specifications of 24mA for high and low states, ensuring equivalent drive capability for connected logic circuits.