74ACT244MTCX Equivalent & Substitute Parts

Part Overview

The 74ACT244MTCX is a non-inverting buffer logic integrated circuit manufactured by onsemi, supplied in Cut Tape (CT) & Digi-Reel® packaging with a 20-TSSOP package configuration. This device functions as a 2-element, 4-bit buffer with 3-state output capability, operating across a 4.5V to 5.5V supply voltage range. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence within the 74ACT logic family.

Substiute Parts

74ACT244MTCX

onsemiIn Stock: 206074ACT244MTCX Datasheet

Current PartRFQ

MC74ACT244DTR2G

onsemiIn Stock: 125208MC74ACT244DTR2G Datasheet

DirectRFQ

MC74ACT241DTR2G

onsemiIn Stock: 20243MC74ACT241DTR2G Datasheet

Parametric EquivalentRFQ

SN74ACT244PW

Texas InstrumentsIn Stock: 2307SN74ACT244PW Datasheet

DirectRFQ

SN74ACT244PWE4

Texas InstrumentsIn Stock: 878SN74ACT244PWE4 Datasheet

DirectRFQ

SN74ACT244PWR

Texas InstrumentsIn Stock: 45441SN74ACT244PWR Datasheet

DirectRFQ

CD74ACT244SM96

Texas InstrumentsIn Stock: 884CD74ACT244SM96 Datasheet

SimilarRFQ

SN74ACT244DBR

Texas InstrumentsIn Stock: 4507SN74ACT244DBR Datasheet

SimilarRFQ

SN74ACT241PWR

Texas InstrumentsIn Stock: 2248SN74ACT241PWR Datasheet

Parametric EquivalentRFQ

SN74ACT244IPWRG4Q1

Texas InstrumentsIn Stock: 15015SN74ACT244IPWRG4Q1 Datasheet

Parametric EquivalentRFQ

SN74ACT244IPWRQ1

Texas InstrumentsIn Stock: 2732SN74ACT244IPWRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACT244MTCX are classified into three categories based on substitution compatibility:

Direct Manufacturer Substitutes maintain identical electrical parameters, logic function, package type (20-TSSOP), and supply voltage specifications. These parts are functionally interchangeable with the main part number and differ only in packaging format (Tape & Reel versus Cut Tape) or manufacturer source.

Parametric Equivalents share all critical electrical specifications and package dimensions but may have different base product numbers within the 74ACT family (such as 74ACT241 versus 74ACT244). These parts provide equivalent functionality for applications requiring non-inverting buffer operation with matching output current and voltage ratings.

Similar Parts maintain the same logic function and electrical specifications but use alternative package configurations (20-SSOP versus 20-TSSOP). Package dimension differences may affect PCB layout compatibility and require mechanical verification before substitution.

Key parameters determining substitution eligibility:

• Logic Type: Buffer, Non-Inverting
• Output Type: 3-State
• Current Rating: 24mA output (high and low)
• Supply Voltage: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C
• Package Type: 20-TSSOP or 20-SSOP

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Same Package, Same Base Product): SN74ACT244PWR (Texas Instruments, Active status) and MC74ACT244DTR2G (onsemi, Active status) are primary direct substitutes. Both maintain 20-TSSOP package compatibility and identical electrical specifications. SN74ACT244PWR offers the highest inventory availability (45,400 units) with Active product status, making it the preferred choice for new designs requiring immediate availability. MC74ACT244DTR2G provides an alternative from onsemi with substantial inventory (125,100 units) in Tape & Reel format.

For Automotive Applications: SN74ACT244IPWRG4Q1 and SN74ACT244IPWRQ1 are qualified to AEC-Q100 automotive standards with Active product status. These parts maintain identical electrical and package specifications while providing automotive-grade reliability certification. SN74ACT244IPWRG4Q1 offers higher inventory (14,906 units) compared to SN74ACT244IPWRQ1 (2,671 units).

For Parametric Equivalence (Different Base Product Number): MC74ACT241DTR2G and SN74ACT241PWR provide parametric equivalence with identical electrical performance and 20-TSSOP packaging. These parts use the 74ACT241 base product number instead of 74ACT244 but maintain all critical functional parameters. Selection depends on packaging preference (Tape & Reel versus Cut Tape) and inventory requirements.

For Package Variant Substitution (20-SSOP Alternative): SN74ACT244DBR (Active status, 4,437 units) and CD74ACT244SM96 (Discontinued, 809 units) use 20-SSOP packaging with 0.209" width versus the 0.173" width of 20-TSSOP. These parts maintain identical electrical specifications but require PCB layout verification due to package dimension differences. SN74ACT244DBR is recommended only when 20-SSOP footprint compatibility is confirmed, as it is the only active 20-SSOP option.

Avoid Discontinued Parts: SN74ACT244PW, SN74ACT244PWE4, and CD74ACT244SM96 are marked as Discontinued at DiGi Electronics. While limited inventory exists, these parts should not be selected for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute MC74ACT244DTR2G for 74ACT244MTCX in my design? A: Yes. MC74ACT244DTR2G is a direct substitute with identical electrical specifications, logic function, and 20-TSSOP package. The only difference is packaging format (Tape & Reel versus Cut Tape). Verify your assembly process accepts Tape & Reel format before substitution.

Q: What is the difference between 74ACT244 and 74ACT241 base products? A: Both are non-inverting buffers with 2 elements, 4 bits per element, and 3-state output. They share identical electrical specifications (24mA output current, 4.5V-5.5V supply, -40°C to 85°C operating range). The base product number difference reflects internal logic architecture variations that do not affect functional equivalence for standard buffer applications.

Q: Can I use SN74ACT244DBR (20-SSOP) instead of 74ACT244MTCX (20-TSSOP)? A: Electrical specifications are identical, but package dimensions differ. 20-SSOP has 0.209" width versus 20-TSSOP at 0.173" width. Substitution requires verification that your PCB footprint and assembly process accommodate the larger package. Do not substitute without confirming mechanical compatibility.

Q: Are automotive-qualified parts (SN74ACT244IPWRG4Q1, SN74ACT244IPWRQ1) suitable for non-automotive applications? A: Yes. Automotive-qualified parts meet or exceed standard commercial specifications. AEC-Q100 qualification ensures additional reliability testing and quality assurance. These parts are fully compatible with non-automotive designs and provide enhanced reliability margins.

Q: Why are some parts listed as Discontinued at DiGi Electronics? A: Discontinued status indicates the distributor no longer actively stocks or supports these parts. While limited inventory may remain, these parts should not be selected for new designs or production quantities requiring long-term supply assurance. Active status parts are recommended for all new applications.

Q: What packaging format should I choose: Cut Tape, Tape & Reel, or Tube? A: Selection depends on assembly process and volume requirements. Cut Tape (CT) & Digi-Reel® suits lower volumes and manual handling. Tape & Reel (TR) is optimized for automated pick-and-place assembly at higher volumes. Tube format is used for manual assembly or lower-volume applications. Verify your assembly equipment compatibility before selecting packaging format.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, matching the main part specification. Compliance certifications are consistent across all direct substitutes and parametric equivalents.