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CD74ACT541MG4 Equivalent & Substitute Parts
Part Overview
The CD74ACT541MG4 is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 8-bit buffering applications with 3-state output capability. This device operates across a 4.5V to 5.5V supply range and is housed in a 20-SOIC surface mount package. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| 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 | -55°C ~ 125°C (TA) |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Series | 74ACT |
Substitute Part Grouping Explanation
Substitute parts for the CD74ACT541MG4 are qualified based on 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
- Package / Case: 20-SOIC (0.295", 7.50mm Width)
- Base Product Number: 74ACT541
All listed substitute parts maintain identical functional specifications and package geometry, ensuring direct pin-for-pin compatibility. Variations in operating temperature range, product status, and packaging format (tube, tape & reel, bulk, cut tape) do not affect electrical interchangeability within the specified supply voltage and output current parameters.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Output Type | Current (mA) | Voltage Supply | Temp Range (°C) | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| CD74ACT541MG4 | Texas Instruments | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -55 ~ 125 | 20-SOIC | Discontinued | ROHS3 |
| CD74ACT541M | Texas Instruments | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -55 ~ 125 | 20-SOIC | Discontinued | ROHS3 |
| MC74ACT541DWR2G | onsemi | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -40 ~ 85 | 20-SOIC | Active | ROHS3 |
| 74ACT541SC | Fairchild Semiconductor | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -40 ~ 85 | 20-SOIC | Active | Not specified |
| 74ACT541SCX | onsemi | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -40 ~ 85 | 20-SOIC | Active | ROHS3 |
| MC74ACT541DWG | onsemi | Buffer, Non-Inverting | 3-State | 24/24 | 4.5V ~ 5.5V | -40 ~ 85 | 20-SOIC | Active | ROHS3 |
Engineering Selection Recommendations
For applications currently using the CD74ACT541MG4, the following selection criteria apply:
Active Product Status Priority: MC74ACT541DWR2G, 74ACT541SCX, and MC74ACT541DWG are actively manufactured and represent the preferred substitutes for new designs and ongoing procurement. These parts ensure long-term availability and supply chain continuity.
Temperature Range Consideration: The original CD74ACT541MG4 operates across -55°C to 125°C. Active substitutes operate within -40°C to 85°C. Applications requiring the extended lower temperature range (-55°C) must verify that the narrower operating window is acceptable for the target environment.
RoHS Compliance: All recommended substitutes maintain ROHS3 compliance, ensuring compatibility with environmental and regulatory requirements.
Packaging Format: Substitute parts are available in multiple packaging formats (tube, tape & reel, bulk, cut tape). Selection should align with procurement and assembly workflow requirements without affecting electrical performance.
Frequently Asked Questions (FAQ)
Q: Are all listed substitute parts pin-for-pin compatible with the CD74ACT541MG4?
A: Yes. All substitute parts maintain identical pinout, package geometry (20-SOIC), and electrical specifications for logic type, output configuration, and current ratings. Direct board-level substitution is supported.
Q: What is the primary difference between the CD74ACT541MG4 and active substitutes?
A: The CD74ACT541MG4 is discontinued and operates across -55°C to 125°C. Active substitutes (MC74ACT541DWR2G, 74ACT541SCX, MC74ACT541DWG) operate within -40°C to 85°C. Electrical performance within the overlapping temperature range is identical.
Q: Can I use MC74ACT541DWR2G in place of CD74ACT541MG4 in an existing design?
A: Yes, provided your application does not require operation below -40°C. The part is electrically and mechanically compatible and is actively manufactured by onsemi.
Q: What packaging options are available for substitutes?
A: Substitute parts are available in tube, tape & reel, bulk, and cut tape formats. Selection depends on assembly requirements and procurement volume. All formats contain the same die and electrical specifications.
Q: Are there compliance or certification differences between substitutes?
A: All substitute parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels vary (MSL 1 for discontinued parts, MSL 3 for active parts), which may affect storage and handling procedures.
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