74VHC244N Equivalent & Substitute Parts

Part Overview

The 74VHC244N is a non-inverting buffer IC manufactured by onsemi, featuring 2 elements with 4 bits per element and 3-state output capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The 74VHC series operates across a supply voltage range of 2V to 5.5V and is housed in a 20-DIP package suitable for through-hole mounting applications.

Substiute Parts

74VHC244N

onsemiIn Stock: 226574VHC244N Datasheet

Current PartRFQ

SN74AHC244N

Texas InstrumentsIn Stock: 4102SN74AHC244N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC244N is determined by strict alignment of the following critical parameters:

• Logic function: Non-inverting buffer with identical element and bit configuration (2 elements, 4 bits per element)
• Output architecture: 3-state output capability
• Electrical performance: Output current specifications (8mA high, 8mA low)
• Supply voltage range: 2V to 5.5V compatibility
• Package format: 20-DIP through-hole mounting
• Pin configuration: Identical pinout and signal routing

The SN74AHC244N from Texas Instruments satisfies all substitution criteria, maintaining functional and electrical equivalence while offering active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The SN74AHC244N qualifies as a direct substitute for the 74VHC244N based on functional equivalence and electrical parameter alignment. The substitute part maintains active product status, ensuring long-term availability and supply chain stability. Both components carry identical REACH and ECCN classifications, confirming regulatory compliance parity. The SN74AHC244N provides an extended operating temperature range (-40°C to 125°C versus -40°C to 85°C), offering enhanced thermal performance for applications requiring broader environmental tolerance. RoHS3 compliance of the substitute part supports modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC244N directly replace the 74VHC244N in existing designs?

A: Yes. Both parts share identical logic function, output configuration, electrical performance, and 20-DIP package format. Pin-for-pin compatibility is maintained, allowing direct substitution without circuit modification.

Q: What is the primary advantage of selecting the SN74AHC244N?

A: The SN74AHC244N carries active product status, ensuring continued availability and manufacturing support. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin for demanding applications.

Q: Are there compliance differences between the two parts?

A: Both parts maintain REACH Unaffected and EAR99 ECCN classifications. The SN74AHC244N includes RoHS3 compliance certification, supporting contemporary regulatory requirements.

Q: Does the substitute part require any circuit design changes?

A: No. Electrical specifications, supply voltage range, output current ratings, and package dimensions are identical. The substitute operates as a direct functional equivalent.

Q: What packaging options are available for the SN74AHC244N?

A: The SN74AHC244N is supplied in tube packaging, suitable for automated assembly and component handling processes.