SN74AHCT244MPWREP Equivalent & Substitute Parts

Part Overview

The SN74AHCT244MPWREP is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 3-state output applications in digital systems. This 20-TSSOP surface mount device operates across a 4.5V to 5.5V supply range and is classified as an active product with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching functional specifications, electrical parameters, and package compatibility to ensure seamless integration in circuit designs requiring buffer functionality with identical pin configurations and electrical characteristics.

Substiute Parts

SN74AHCT244MPWREP

Texas InstrumentsIn Stock: 1102SN74AHCT244MPWREP Datasheet

Current PartRFQ

MC74VHCT244ADTRG

onsemiIn Stock: 3719MC74VHCT244ADTRG Datasheet

DirectRFQ

74AHCT244PW,118

Nexperia USA Inc.In Stock: 400374AHCT244PW,118 Datasheet

MFR RecommendedRFQ

74VHCT244AMTCX

onsemiIn Stock: 422474VHCT244AMTCX Datasheet

MFR RecommendedRFQ

74VHCT244PW,118

Nexperia USA Inc.In Stock: 536574VHCT244PW,118 Datasheet

MFR RecommendedRFQ

MC74VHCT244ADTG

onsemiIn Stock: 1602MC74VHCT244ADTG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74AHCT244MPWREP are qualified based on the following criteria:

Electrical Parameter Matching:

• Logic type: Buffer, Non-Inverting
• Element configuration: 2 elements, 4 bits per element
• Output configuration: 3-State
• Output current capability: 8mA high and low
• Supply voltage range: 4.5V ~ 5.5V
• Moisture sensitivity level: 1 (Unlimited)

Package Compatibility:

• Package type: 20-TSSOP
• Physical dimensions: 0.173" width, 4.40mm width
• Mounting type: Surface Mount

Compliance Requirements:

• RoHS3 compliance
• REACH unaffected status
• Active product status

All substitute parts listed maintain identical functional specifications and package dimensions, ensuring direct replacement capability in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and functional equivalence to the SN74AHCT244MPWREP. Selection among these alternatives should be based on the following factors:

Temperature Range Considerations: The SN74AHCT244MPWREP operates from -55°C to 125°C, providing the widest temperature specification. The 74VHCT244AMTCX operates from -40°C to 85°C, representing a narrower range suitable for standard industrial applications. All other substitutes operate from -40°C to 125°C, meeting extended temperature requirements for most applications.

Packaging and Supply Chain: Substitute parts are available in multiple packaging formats: Tape & Reel (TR), Cut Tape with Digi-Reel, and Tube. Selection depends on assembly process requirements and inventory management practices. All parts maintain identical 20-TSSOP package dimensions and surface mount compatibility.

Manufacturer Availability: Texas Instruments (SN74AHCT244MPWREP), onsemi (MC74VHCT244 series), and Nexperia USA Inc. (74AHCT244PW,118 and 74VHCT244PW,118) all maintain active product status with current inventory availability. Cross-manufacturer substitution is supported by matching electrical specifications and compliance certifications.

Compliance and Regulatory: All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. No regulatory restrictions apply to substitution between listed parts.

Frequently Asked Questions (FAQ)

Q: Can the MC74VHCT244ADTRG replace the SN74AHCT244MPWREP in all applications?

A: Yes, the MC74VHCT244ADTRG is electrically equivalent with matching logic type, element configuration, output type, current ratings, and supply voltage specifications. The operating temperature range differs (-40°C to 125°C versus -55°C to 125°C), so applications requiring operation below -40°C require the original SN74AHCT244MPWREP or equivalent parts with extended low-temperature ratings.

Q: What is the difference between 74AHCT244PW,118 and 74VHCT244PW,118?

A: Both parts are manufactured by Nexperia USA Inc. and share identical electrical specifications, package dimensions, and functional characteristics. The primary difference is the series designation (74AHCT versus 74VHCT) and operating temperature range (74AHCT244PW,118 operates -40°C to 125°C; 74VHCT244PW,118 operates -40°C to 125°C). Both are direct substitutes for the SN74AHCT244MPWREP.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR), Cut Tape with Digi-Reel, and Tube packaging formats contain identical die and electrical specifications. Packaging selection is determined by assembly process requirements, automated pick-and-place equipment compatibility, and inventory management practices.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the SN74AHCT244MPWREP.

Q: What is the significance of the 20-TSSOP package specification?

A: The 20-TSSOP (Thin Shrink Small Outline Package) with 0.173" width and 4.40mm width is the standardized package for all listed parts. This ensures pin-for-pin compatibility, identical PCB footprints, and direct mechanical and electrical interchangeability without design modifications.

Q: Can the 74VHCT244AMTCX be used in applications requiring -55°C operation?

A: No. The 74VHCT244AMTCX operates from -40°C to 85°C, which does not meet the extended low-temperature requirement of -55°C. For applications requiring -55°C operation, use the SN74AHCT244MPWREP or substitute parts with matching extended temperature specifications.