SN74AC244PW Equivalent & Substitute Parts

Part Overview

The SN74AC244PW is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for 2-element, 4-bit per element configurations with 3-state output capability. This device operates across a 2V to 6V supply voltage range and is housed in a 20-TSSOP surface mount package. The SN74AC244PW is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. Substitute parts maintain identical functional specifications and electrical parameters while offering active product status or alternative packaging options.

Substiute Parts

SN74AC244PW

Texas InstrumentsIn Stock: 3135SN74AC244PW Datasheet

Current PartRFQ

SN74AC244PWR

Texas InstrumentsIn Stock: 2990SN74AC244PWR Datasheet

DirectRFQ

74AC244MTC

onsemiIn Stock: 127774AC244MTC Datasheet

DirectRFQ

74AC244MTCX

Fairchild SemiconductorIn Stock: 163474AC244MTCX Datasheet

DirectRFQ

MC74AC244DTR2G

onsemiIn Stock: 15476MC74AC244DTR2G Datasheet

MFR RecommendedRFQ

MC74AC244DTG

onsemiIn Stock: 1169MC74AC244DTG Datasheet

Parametric EquivalentRFQ

SN74AC241PW

Texas InstrumentsIn Stock: 1015SN74AC241PW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74AC244PW are classified based on functional and electrical equivalence within the 74AC logic family. All substitute parts maintain identical specifications across the following critical parameters: logic type (non-inverting buffer), element configuration (2 elements, 4 bits per element), output type (3-state), output current ratings (24mA high and low), supply voltage range (2V to 6V), operating temperature range (-40°C to 85°C), and package type (20-TSSOP surface mount). Substitution is valid when these parameters are matched across manufacturers and packaging variants. The grouping includes direct manufacturer alternatives from Texas Instruments and onsemi, as well as parametric equivalents that maintain full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the SN74AC244PW, the SN74AC244PWR from Texas Instruments is the primary recommended substitute. This part maintains identical electrical and mechanical specifications while offering active product status and alternative packaging in Cut Tape and Digi-Reel formats, ensuring long-term availability and supply chain continuity.

The MC74AC244DTR2G from onsemi represents a manufacturer-recommended alternative with active product status and the highest current inventory (15,406 units). This part is supplied in Cut Tape packaging and carries full ROHS3 compliance and MSL Level 1 certification, matching all critical parameters of the original device.

The 74AC244MTC from onsemi and 74AC244MTCX from Fairchild Semiconductor are parametric equivalents with active product status. Both maintain full electrical compatibility and 20-TSSOP packaging. The 74AC244MTC is available in Tube packaging with 1,223 units in stock, while 74AC244MTCX offers an alternative sourcing option with 1,599 units available.

The SN74AC241PW from Texas Instruments is a parametric equivalent with discontinued status. While electrically compatible, this part shares the same discontinuation status as the original SN74AC244PW and should be considered only when other active alternatives are unavailable.

Selection should prioritize parts with active product status to ensure sustained availability. ROHS3 compliance and MSL Level 1 certification are maintained across all recommended substitutes, supporting compliance requirements for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can SN74AC244PWR be used as a direct replacement for SN74AC244PW?

A: Yes. The SN74AC244PWR is a direct substitute with identical electrical specifications, output current ratings, supply voltage range, operating temperature, and 20-TSSOP package. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tube) and active product status, making it the preferred alternative for new designs and production.

Q: What is the difference between the various onsemi 74AC244 variants?

A: The onsemi 74AC244MTC and MC74AC244DTR2G are functionally equivalent parts with identical electrical parameters. The primary distinction is packaging format: 74AC244MTC is supplied in Tube, while MC74AC244DTR2G is supplied in Cut Tape. Both maintain full compatibility with the original SN74AC244PW specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts carry ROHS3 compliance certification. The 74AC244MTCX from Fairchild Semiconductor does not specify RoHS status in available documentation. Verify compliance requirements for your specific application before selection.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tube, Cut Tape, Digi-Reel) affects only supply chain logistics and handling procedures. All substitute parts in the 20-TSSOP package maintain identical electrical performance and are mechanically interchangeable on PCBs.

Q: Which substitute part offers the best supply availability?

A: The MC74AC244DTR2G from onsemi currently has the highest inventory level at 15,406 units, providing the strongest supply assurance for production requirements.

Q: Can SN74AC241PW be used as a substitute?

A: The SN74AC241PW is a parametric equivalent with identical electrical specifications and 20-TSSOP packaging. However, it shares discontinued product status with the original SN74AC244PW. Use only when active alternatives are unavailable.