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74ACT541MTC Equivalent & Substitute Parts
Part Overview
The 74ACT541MTC is a non-inverting buffer logic integrated circuit manufactured by onsemi, designed for 8-bit buffering applications with 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-TSSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74ACT541MTC |
| Manufacturer | onsemi |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| 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) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 74ACT541MTC is determined by strict equivalence across the following critical parameters:
- Logic Type: Buffer, Non-Inverting
- Number of Elements: 1
- Number of Bits per Element: 8
- Output Type: 3-State
- Current - Output High, Low: 24mA, 24mA
- Voltage - Supply: 4.5V ~ 5.5V
- Base Product Number: 74ACT541
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Substitute parts are grouped into two categories: direct equivalents with identical packaging (20-TSSOP), and similar parts with alternative packaging configurations or extended operating temperature ranges. All substitutes maintain functional and electrical compatibility with the original specification.
Parameter Comparison
| Parameter | 74ACT541MTC (Main) | MC74ACT541DTG | MC74ACT541DTR2G | CD74ACT541SM96 |
|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | Texas Instruments |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 8 | 8 | 8 | 8 |
| Output Type | 3-State | 3-State | 3-State | 3-State |
| Current - Output High, Low | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -55°C ~ 125°C (TA) |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-SSOP (0.209", 5.30mm Width) |
| Packaging Type | — | Tube | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Obsolete | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
MC74ACT541DTG and MC74ACT541DTR2G are direct functional equivalents to the 74ACT541MTC, differing only in packaging format (tube versus tape & reel). Both are manufactured by onsemi with active product status, ensuring long-term availability and supply chain stability. These parts are preferred for applications requiring identical thermal and electrical performance characteristics.
CD74ACT541SM96, manufactured by Texas Instruments, provides functional equivalence with an extended operating temperature range of -55°C to 125°C compared to the -40°C to 85°C specification of the original part. The package footprint differs (20-SSOP versus 20-TSSOP), requiring PCB layout verification. This part is suitable for applications demanding broader temperature operation within the same electrical specification envelope.
All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards.
Frequently Asked Questions (FAQ)
Q: Can MC74ACT541DTG be used as a direct replacement for 74ACT541MTC?
A: Yes. MC74ACT541DTG is functionally equivalent across all critical electrical and logical parameters. The difference is packaging format (tube versus unspecified original packaging). PCB footprint and pinout are identical.
Q: What is the difference between MC74ACT541DTG and MC74ACT541DTR2G?
A: Both parts are electrically and functionally identical. The difference is in packaging: MC74ACT541DTG is supplied in tube format, while MC74ACT541DTR2G is supplied in tape & reel (TR) format. Selection depends on assembly process requirements and volume considerations.
Q: Can CD74ACT541SM96 replace 74ACT541MTC in all applications?
A: CD74ACT541SM96 is functionally equivalent in logic operation and electrical performance. However, the package footprint differs (20-SSOP versus 20-TSSOP). PCB layout and land pattern modifications are required. The extended operating temperature range (-55°C to 125°C) provides additional thermal capability beyond the original specification.
Q: Are all substitute parts RoHS compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL Level 1 rating, meeting current environmental and manufacturing standards.
Q: What is the significance of the 74ACT541 base product number?
A: The base product number 74ACT541 identifies the core logic function and electrical specification. All listed parts share this base designation, confirming functional equivalence across the 74ACT logic family.
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