SN74AC244NG4 Equivalent & Substitute Parts

Part Overview

The SN74AC244NG4 is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability. This device is designed for signal buffering and line driving applications in digital logic systems operating at supply voltages between 2V and 6V.

The SN74AC244NG4 is currently discontinued at DiGi Electronics. Equivalent substitute parts are available to maintain design continuity and ensure project completion without redesign requirements.

Substiute Parts

SN74AC244NG4

Texas InstrumentsIn Stock: 847SN74AC244NG4 Datasheet

Current PartRFQ

SN74AC244N

Texas InstrumentsIn Stock: 1307SN74AC244N Datasheet

MFR RecommendedRFQ

SN74AC241N

Texas InstrumentsIn Stock: 1839SN74AC241N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74AC244NG4 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 2V ~ 6V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

All substitute parts listed maintain identical electrical specifications and mechanical form factors, ensuring direct replacement capability in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC244N is the manufacturer-recommended substitute for the discontinued SN74AC244NG4. Both parts share identical electrical and mechanical specifications, with the primary distinction being product status and packaging format. The SN74AC244N is currently in active production with confirmed inventory availability.

The SN74AC241N serves as a parametric equivalent, maintaining all critical electrical characteristics and physical form factor. This part is also in active production status.

Both substitute parts carry ROHS3 compliance certification and are unaffected by REACH regulations, meeting current environmental and regulatory requirements for component selection.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC244N directly replace the SN74AC244NG4 in existing designs?

A: Yes. The SN74AC244N is electrically and mechanically identical to the SN74AC244NG4. Both devices feature the same logic type, element count, bit configuration, output type, current ratings, supply voltage range, operating temperature range, and 20-DIP package form factor. Direct substitution is supported without circuit modification.

Q: What is the difference between the SN74AC244N and SN74AC241N?

A: Both parts are functionally equivalent with identical electrical specifications and package form factors. The primary difference is the base product number designation (74AC244 versus 74AC241). Both are suitable for applications requiring non-inverting buffer functionality with 3-state outputs.

Q: Are there packaging considerations when substituting these parts?

A: The SN74AC244NG4 packaging specification was not provided in the original documentation. The substitute parts SN74AC244N and SN74AC241N are supplied in tube packaging. Both maintain the 20-DIP (0.300", 7.62mm) through-hole form factor, ensuring compatibility with existing PCB layouts and socket configurations.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both SN74AC244N and SN74AC241N are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original SN74AC244NG4.

Q: What is the current availability status of these substitute parts?

A: The SN74AC244N has 1249 pieces in stock. The SN74AC241N has 1825 pieces in stock. Both are classified as active products with confirmed availability.