74ACT11244NT Equivalent & Substitute Parts

Part Overview

The 74ACT11244NT is a Buffer, Non-Inverting logic IC featuring 2 elements with 4 bits per element and 3-state output capability. Manufactured by Texas Instruments in the 74ACT series, this component operates across a 4.5V to 5.5V supply voltage range with output current ratings of 24mA for both high and low states. The device is packaged in a 24-pin DIP (Dual In-line Package) configuration suitable for through-hole mounting applications.

The 74ACT11244NT is classified as obsolete. Locating equivalent substitute parts becomes necessary for new designs, production continuity, and system upgrades where through-hole components may be transitioning to surface-mount alternatives or where active product availability is required.

Substiute Parts

74ACT11244NT

Texas InstrumentsIn Stock: 89674ACT11244NT Datasheet

Current PartRFQ

74ACT11244DWR

Texas InstrumentsIn Stock: 134574ACT11244DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT11244NT is determined by functional equivalence across the following critical parameters:

• Logic Function: Buffer, Non-Inverting topology with identical element and bit configuration (2 elements, 4 bits per element)
• Output Characteristics: 3-state output capability with matching current ratings (24mA high/low)
• Electrical Specifications: Identical supply voltage range (4.5V ~ 5.5V) and operating temperature range (-40°C ~ 85°C)
• Series Compatibility: Same 74ACT logic family designation
• Base Product Number: Identical base product number (74ACT11244) ensures functional equivalence
• Compliance Standards: ROHS3 compliance and MSL rating maintained across substitutes

The 74ACT11244DWR qualifies as a direct functional substitute, with the primary difference being the package type: surface-mount 24-SOIC versus through-hole 24-DIP. All electrical and logical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

The 74ACT11244DWR is the active product substitute for the obsolete 74ACT11244NT. Both components maintain identical electrical specifications, logic functionality, and compliance certifications (ROHS3, REACH Unaffected, EAR99 classification).

Selection between these parts depends on circuit board design requirements:

• 74ACT11244NT (Through-Hole): Applicable only for legacy system repairs or existing through-hole PCB designs where component replacement is necessary
• 74ACT11244DWR (Surface-Mount): Recommended for new designs and production continuity due to active product status and modern surface-mount manufacturing compatibility

Both parts satisfy identical functional and electrical requirements. The choice is determined by PCB assembly technology and design constraints rather than performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT11244DWR directly replace the 74ACT11244NT in existing circuits?

A: Functionally, yes. Both parts provide identical logic operation, output characteristics, and electrical specifications. However, physical replacement requires PCB redesign due to package differences: 24-DIP (through-hole) versus 24-SOIC (surface-mount). Direct socket substitution is not possible without adapter hardware.

Q: What determines if a part is a valid substitute for the 74ACT11244NT?

A: Valid substitutes must maintain the same base product number (74ACT11244), logic type (Buffer, Non-Inverting), element configuration (2 elements, 4 bits per element), output type (3-state), current ratings (24mA), supply voltage range (4.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C).

Q: Why is the 74ACT11244NT listed as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The active substitute 74ACT11244DWR in surface-mount packaging represents the current product offering for this logic function.

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

A: No. Both parts maintain identical RoHS3 compliance, MSL rating (1 - Unlimited), REACH status (Unaffected), and ECCN classification (EAR99).

Q: What is the primary difference between these substitute parts?

A: The primary difference is packaging technology. The 74ACT11244NT uses through-hole 24-DIP packaging, while the 74ACT11244DWR uses surface-mount 24-SOIC packaging. All electrical and functional specifications are identical.