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SN74ACT241DWRG4 Equivalent & Substitute Parts
Part Overview
The SN74ACT241DWRG4 is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-SOIC package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74ACT241DWRG4 |
| Manufacturer | Texas Instruments |
| 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-SOIC (0.295", 7.50mm Width) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the SN74ACT241DWRG4 is determined by strict equivalence across the following critical parameters:
- 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-SOIC (0.295", 7.50mm Width)
- Series: 74ACT
Substitute parts are grouped into two categories: MFR Recommended substitutes (direct replacements from the original manufacturer or authorized equivalents) and Parametric Equivalents (parts meeting all electrical and mechanical specifications but potentially from different manufacturers or with different product status classifications).
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements | Bits/Element | Output Type | Current (mA) | Supply Voltage | Temp Range | Package | Product Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SN74ACT241DWRG4 | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Obsolete | ROHS3 |
| SN74ACT241NSR | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.209") | Active | ROHS3 |
| CD74ACT241M96 | Harris Corporation | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Obsolete | Non-compliant |
| CD74ACT244M96 | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| SN74ACT241DWR | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| SN74ACT244DWR | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| SN74ACT244IDWREP | Texas Instruments | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| MC74ACT241DWG | onsemi | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Obsolete | ROHS3 |
| 74ACT244SCX | onsemi | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| MC74ACT241DWR2G | onsemi | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
| MC74ACT244DWR2G | onsemi | Buffer, Non-Inverting | 2 | 4 | 3-State | 24/24 | 4.5V ~ 5.5V | -40°C ~ 85°C | 20-SOIC (0.295") | Active | ROHS3 |
Engineering Selection Recommendations
For new designs and ongoing system support, the following selection criteria apply:
Active Product Status Priority: SN74ACT241DWR, SN74ACT244DWR, SN74ACT244IDWREP, CD74ACT244M96, 74ACT244SCX, MC74ACT241DWR2G, and MC74ACT244DWR2G are all classified as active products and represent the most viable long-term substitutes for the obsolete SN74ACT241DWRG4.
Texas Instruments Direct Substitutes: SN74ACT241NSR (MFR Recommended), SN74ACT241DWR, SN74ACT244DWR, and SN74ACT244IDWREP maintain full compatibility with the original part's electrical specifications and ROHS3 compliance status.
onsemi Equivalents: MC74ACT241DWR2G and MC74ACT244DWR2G provide parametric equivalence with active product status and ROHS3 compliance. The 74ACT244SCX variant is also available with active status.
RoHS Compliance Consideration: CD74ACT241M96 meets all electrical parameters but carries RoHS non-compliant status, limiting its use in applications requiring regulatory compliance.
Packaging Note: SN74ACT241NSR features a narrower package width (0.209" vs. 0.295"), which may require PCB layout verification before implementation.
Frequently Asked Questions (FAQ)
Q: Can SN74ACT241NSR be used as a direct replacement for SN74ACT241DWRG4?
A: SN74ACT241NSR is electrically equivalent and meets all functional specifications. However, the package width differs (0.209" vs. 0.295"), requiring PCB footprint verification. This is the MFR Recommended substitute from Texas Instruments.
Q: What is the difference between 74ACT241 and 74ACT244 base part numbers in the substitute list?
A: Both base part numbers (74ACT241 and 74ACT244) meet the identical electrical and mechanical specifications for this application. The distinction is in manufacturer part numbering conventions and does not affect functional compatibility.
Q: Are onsemi parts (MC74ACT241DWR2G, MC74ACT244DWR2G) suitable replacements?
A: Yes. These parts meet all electrical specifications, maintain ROHS3 compliance, and carry active product status. They are parametric equivalents suitable for direct substitution.
Q: Why is CD74ACT241M96 listed if it is RoHS non-compliant?
A: CD74ACT241M96 is included as a parametric equivalent meeting all electrical and mechanical specifications. However, its RoHS non-compliant status restricts use to applications without regulatory compliance requirements.
Q: What inventory considerations should guide part selection?
A: SN74ACT244DWR offers the highest inventory availability (93,100 pcs), followed by MC74ACT244DWR2G (35,100 pcs) and 74ACT244SCX (9,458 pcs). Availability should be balanced against lead time and supply chain requirements.
Q: Is the operating temperature range consistent across all substitutes?
A: Yes. All listed substitutes maintain the -40°C to 85°C operating temperature range, ensuring thermal compatibility across the full product range.
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