SN74ACT244PW Equivalent & Substitute Parts

Part Overview

The SN74ACT244PW is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability in a 20-TSSOP surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. The 74ACT logic family provides standard TTL-compatible buffering functionality with 5V supply operation and industrial temperature range specifications.

Substiute Parts

SN74ACT244PW

Texas InstrumentsIn Stock: 2307SN74ACT244PW Datasheet

Current PartRFQ

SN74ACT244PWR

Texas InstrumentsIn Stock: 45441SN74ACT244PWR Datasheet

DirectRFQ

74ACT244MTCX

onsemiIn Stock: 206074ACT244MTCX Datasheet

DirectRFQ

MC74ACT244DTR2G

onsemiIn Stock: 125208MC74ACT244DTR2G Datasheet

DirectRFQ

74ACT244MTC

onsemiIn Stock: 440574ACT244MTC Datasheet

Parametric EquivalentRFQ

SN74ACT241PW

Texas InstrumentsIn Stock: 1746SN74ACT241PW Datasheet

Parametric EquivalentRFQ

SN74ACT244PWE4

Texas InstrumentsIn Stock: 878SN74ACT244PWE4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74ACT244PW are classified based on strict electrical and mechanical parameter matching within the 74ACT logic family. All substitute relationships are determined by the following criteria:

Critical Parameters for Substitution:

• 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: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Base Product Number: 74ACT244 or 74ACT241

Substitution Categories:

Direct Manufacturer Substitutes (identical electrical and mechanical specifications, different packaging or product status):

• SN74ACT244PWR (Texas Instruments, Cut Tape & Digi-Reel packaging, Active status)
• 74ACT244MTCX (onsemi, Cut Tape & Digi-Reel packaging, Active status)
• MC74ACT244DTR2G (onsemi, Tape & Reel packaging, Active status)

Parametric Equivalents (identical electrical specifications, different base product number or packaging):

• 74ACT244MTC (onsemi, Tube packaging, Active status)
• SN74ACT241PW (Texas Instruments, Tube packaging, Discontinued at DiGi Electronics)
• SN74ACT244PWE4 (Texas Instruments, Discontinued at DiGi Electronics)

Parameter Comparison

Engineering Selection Recommendations

For Active Production and Long-Term Availability:

SN74ACT244PWR (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical and mechanical specifications to the SN74ACT244PW while offering Active product status and significantly higher inventory availability (45,400 units). The only difference is packaging format (Cut Tape & Digi-Reel versus Tube), which does not affect electrical performance or PCB assembly compatibility for surface mount applications.

MC74ACT244DTR2G (onsemi) provides an alternative from a different manufacturer with Active status and the highest available inventory (125,100 units). This part is supplied in Tape & Reel format, suitable for high-volume automated assembly operations.

For Tube Packaging Requirement:

74ACT244MTC (onsemi) maintains Tube packaging identical to the original SN74ACT244PW while offering Active product status. This part is suitable when tube packaging is a specific procurement requirement.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the original SN74ACT244PW specifications. All parts are classified under ECCN EAR99 and HTSUS 8542.39.0001.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT244PWR be used as a direct replacement for SN74ACT244PW?

A: Yes. SN74ACT244PWR is electrically and mechanically identical to SN74ACT244PW. The difference is packaging format: SN74ACT244PWR is supplied in Cut Tape & Digi-Reel format while SN74ACT244PW is supplied in Tube format. Both are surface mount 20-TSSOP packages with identical pin configurations and electrical performance.

Q: What is the difference between 74ACT244MTCX and MC74ACT244DTR2G?

A: Both parts are manufactured by onsemi with identical electrical specifications. The primary difference is packaging format: 74ACT244MTCX is supplied in Cut Tape & Digi-Reel format, while MC74ACT244DTR2G is supplied in Tape & Reel format. Tape & Reel packaging is optimized for high-volume automated assembly, while Cut Tape & Digi-Reel is suitable for mixed-volume production.

Q: Are SN74ACT241PW and SN74ACT244PW interchangeable?

A: SN74ACT241PW is a parametric equivalent with identical electrical specifications and operating characteristics. Both parts feature 2 elements, 4 bits per element, 3-state output, and identical supply voltage and temperature ranges. The base product numbers differ (74ACT241 versus 74ACT244), but functional performance in buffering applications is equivalent.

Q: Why should I choose an Active status part over a Discontinued part?

A: Active status parts have ongoing manufacturer support, guaranteed long-term availability, and continued production. Discontinued parts have limited remaining inventory and no assurance of future availability. For new designs or ongoing production, Active status parts ensure supply chain continuity.

Q: Does the 20-TSSOP package remain the same across all substitute parts?

A: Yes. All substitute parts listed use the identical 20-TSSOP package (0.173", 4.40mm Width). This ensures PCB footprint compatibility and no redesign is required for package migration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the original SN74ACT244PW environmental and regulatory specifications.