SN74HC244QPWREP Equivalent & Substitute Parts

Part Overview

The SN74HC244QPWREP is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, designed for 2V to 6V supply voltage applications. This 20-TSSOP surface mount device provides 2 elements with 4 bits per element and 3-state output capability, delivering 7.8mA output current at both high and low logic levels. The part is currently in active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are necessary when addressing supply constraints, packaging preferences, temperature range requirements, or automotive qualification needs.

Substiute Parts

SN74HC244QPWREP

Texas InstrumentsIn Stock: 945SN74HC244QPWREP Datasheet

Current PartRFQ

SN74HC244QPWREP

Texas InstrumentsIn Stock: 945SN74HC244QPWREP Datasheet

Parametric EquivalentRFQ

SN74HC244QPWRG4Q1

Texas InstrumentsIn Stock: 3245SN74HC244QPWRG4Q1 Datasheet

Parametric EquivalentRFQ

74HC244PW,112

Nexperia USA Inc.In Stock: 100774HC244PW,112 Datasheet

MFR RecommendedRFQ

MC74HC244ADTG

onsemiIn Stock: 767MC74HC244ADTG Datasheet

MFR RecommendedRFQ

MC74HC244ADTR2G

onsemiIn Stock: 16622MC74HC244ADTR2G Datasheet

MFR RecommendedRFQ

MM74HC244MTCX

onsemiIn Stock: 2156MM74HC244MTCX Datasheet

MFR RecommendedRFQ

74HC244PW,118

NXP SemiconductorsIn Stock: 371974HC244PW,118 Datasheet

Parametric EquivalentRFQ

74HC244PW-Q100,118

Nexperia USA Inc.In Stock: 338074HC244PW-Q100,118 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC244QPWREP is determined by strict adherence to the following parameters:

Core Electrical Parameters (Non-Negotiable):

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current - Output High, Low: 7.8mA, 7.8mA
• Voltage - Supply: 2V ~ 6V
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)

Allowable Variations:

• Operating Temperature Range: May extend beyond -40°C ~ 125°C (wider ranges are acceptable)
• Packaging Format: Tape & Reel (TR), Cut Tape (CT), Tube, or Bulk (different delivery methods for same component)
• Product Status: Active or Obsolete (both acceptable if electrical parameters match)
• Manufacturer: Texas Instruments, Nexperia USA Inc., NXP Semiconductors, or onsemi
• Grade/Qualification: Standard or Automotive (AEC-Q100) variants acceptable

All substitute parts listed maintain identical electrical functionality and package specifications as the main part number.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: Select MC74HC244ADTR2G (onsemi) or 74HC244PW,118 (NXP Semiconductors) when standard temperature range (-40°C ~ 125°C) is acceptable. Both parts are in active product status with high inventory availability. MC74HC244ADTR2G offers extended lower temperature operation (-55°C) if required.

For Automotive Applications: Select SN74HC244QPWRG4Q1 (Texas Instruments) or 74HC244PW-Q100,118 (Nexperia USA Inc.) when AEC-Q100 automotive qualification is required. Both maintain the -40°C ~ 125°C operating range with active product status.

For Packaging Flexibility:

• Tape & Reel (TR): SN74HC244QPWREP, SN74HC244QPWRG4Q1, MC74HC244ADTR2G, MM74HC244MTCX, 74HC244PW-Q100,118
• Tube: 74HC244PW,112, MC74HC244ADTG
• Bulk: 74HC244PW,118
• Cut Tape & Digi-Reel: SN74HC244QPWRG4Q1

For Extended Temperature Range: Select MC74HC244ADTG or MC74HC244ADTR2G (onsemi) for operation down to -55°C. Note that MM74HC244MTCX has a reduced upper temperature limit of 85°C and is not suitable for applications requiring full 125°C operation.

For Supply Continuity: Avoid 74HC244PW,112 (Nexperia USA Inc.) as it carries obsolete product status. Prioritize active status parts for long-term availability.

Frequently Asked Questions (FAQ)

Q: Can I substitute SN74HC244QPWREP with MM74HC244MTCX? A: Electrical substitution is valid only if your application operates within -40°C ~ 85°C. MM74HC244MTCX has a reduced upper temperature limit of 85°C compared to the standard 125°C. Verify your application's maximum operating temperature before selection.

Q: What is the difference between standard and automotive-grade versions? A: Automotive-grade versions (SN74HC244QPWRG4Q1 and 74HC244PW-Q100,118) carry AEC-Q100 qualification, indicating compliance with automotive reliability standards. Standard versions lack this certification. Select automotive-grade only if your application requires this qualification.

Q: Are all substitute parts available in Tape & Reel packaging? A: No. Tape & Reel availability includes SN74HC244QPWREP, SN74HC244QPWRG4Q1, MC74HC244ADTR2G, MM74HC244MTCX, and 74HC244PW-Q100,118. Tube packaging is available for 74HC244PW,112 and MC74HC244ADTG. Bulk packaging is available for 74HC244PW,118.

Q: Why does MC74HC244ADTR2G show -55°C minimum operating temperature? A: onsemi's MC74HC244ADTR2G is specified for -55°C ~ 125°C operation, extending the lower temperature range beyond the standard -40°C minimum. This provides additional margin for cold environment applications.

Q: Is 74HC244PW,112 still available for new designs? A: No. 74HC244PW,112 carries obsolete product status. For new designs, select from active status alternatives such as MC74HC244ADTR2G, 74HC244PW,118, or SN74HC244QPWREP.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component has unlimited shelf life under normal storage conditions without requiring special moisture control measures.

Q: Can I use these parts interchangeably on the same PCB? A: Yes, all listed substitute parts maintain identical electrical parameters, output characteristics, and 20-TSSOP package dimensions. PCB layout and footprint remain unchanged across all substitutes.