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74LVC541APW,112 Equivalent & Substitute Parts
Part Overview
The 74LVC541APW,112 is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., designed for 3-state output applications in low-voltage digital circuits. This device features 1 element with 8 bits per element, operating across a supply voltage range of 1.2V to 3.6V and a temperature range of -40°C to 125°C. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.
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 | 1.2V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the 74LVC541APW,112 is determined by 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
- Package / Case: 20-TSSOP or compatible surface-mount packages
- Voltage - Supply: Minimum 1.2V to 3.6V compatibility
- Operating Temperature: -40°C to 125°C minimum range
- RoHS3 Compliance and MSL Level 1
Substitute parts are grouped into two categories based on package compatibility:
Category 1: 20-TSSOP Package (Direct Pin-Compatible) Parts maintaining the exact 20-TSSOP footprint with identical electrical specifications.
Category 2: Alternative Surface-Mount Packages (20-SSOP, 20-TVSOP) Parts with equivalent functionality but different package geometries, requiring PCB layout modification.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Voltage - Supply | Operating Temperature | Package / Case | Product Status | Current - Output (mA) |
|---|---|---|---|---|---|---|---|
| 74LVC541APW,112 | Nexperia USA Inc. | Buffer, Non-Inverting | 1.2V ~ 3.6V | -40°C ~ 125°C | 20-TSSOP | Obsolete | 24, 24 |
| 74LCX541MTC | onsemi | Buffer, Non-Inverting | 2V ~ 3.6V | -40°C ~ 85°C | 20-TSSOP | Active | 24, 24 |
| CLVC541AQPWRG4Q1 | Texas Instruments | Buffer, Non-Inverting | 2V ~ 3.6V | -40°C ~ 125°C | 20-TSSOP | Active | 24, 24 |
| MC74LCX541DTG | onsemi | Buffer, Non-Inverting | 2V ~ 3.6V | -40°C ~ 85°C | 20-TSSOP | Active | 24, 24 |
| MC74LCX541DTR2G | onsemi | Buffer, Non-Inverting | 2V ~ 3.6V | -40°C ~ 85°C | 20-TSSOP | Active | 24, 24 |
| SN74LVC541ADB | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-SSOP | Active | 24, 24 |
| SN74LVC541ADBR | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-SSOP | Active | 24, 24 |
| SN74LVC541ADGVR | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-TVSOP | Active | 24, 24 |
| SN74LVC541APW | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-TSSOP | Active | 24, 24 |
| SN74LVC541APWR | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-TSSOP | Active | 24, 24 |
| SN74LVC541APWRG4 | Texas Instruments | Buffer, Non-Inverting | 1.65V ~ 3.6V | -40°C ~ 125°C | 20-TSSOP | Discontinued at DiGi Electronics | 24, 24 |
Engineering Selection Recommendations
For Direct Replacement (20-TSSOP Package, No PCB Modification Required):
SN74LVC541APW and SN74LVC541APWR from Texas Instruments are the primary active alternatives. Both maintain the 20-TSSOP footprint, support the full -40°C to 125°C operating temperature range, and are ROHS3 compliant with MSL Level 1. SN74LVC541APWR offers higher inventory availability (32,300 pcs) in Cut Tape & Digi-Reel packaging.
CLVC541AQPWRG4Q1 from Texas Instruments is an automotive-grade option (AEC-Q100 qualified) in 20-TSSOP package, suitable for applications requiring automotive qualification.
For Active Inventory with Temperature Trade-off:
MC74LCX541DTR2G and MC74LCX541DTG from onsemi provide the highest inventory availability (55,400 pcs and 1,900 pcs respectively) in 20-TSSOP package. These parts operate at -40°C to 85°C, which is acceptable for non-extended-temperature applications. Both are ROHS3 compliant with MSL Level 1.
For Alternative Package Geometries:
SN74LVC541ADB and SN74LVC541ADBR use 20-SSOP package (0.209" width vs. 0.173" for TSSOP), requiring PCB layout modification but maintaining full electrical compatibility and -40°C to 125°C operation.
SN74LVC541ADGVR uses 20-TVSOP package, also requiring layout modification but offering the same temperature range and electrical specifications.
Frequently Asked Questions (FAQ)
Q: Can I use 74LCX541MTC as a direct replacement for 74LVC541APW,112?
A: Yes, for most applications. Both are non-inverting buffers with 1 element, 8 bits per element, 3-state output, 24mA drive current, and 20-TSSOP package. The 74LCX541MTC operates at 2V to 3.6V (vs. 1.2V minimum for the original) and -40°C to 85°C (vs. 125°C maximum). Verify your circuit's minimum supply voltage and maximum operating temperature requirements before substitution.
Q: What is the difference between 20-TSSOP and 20-SSOP packages?
A: Both are 20-pin surface-mount packages, but 20-TSSOP has a 0.173" body width while 20-SSOP has a 0.209" body width. They are not pin-compatible on the same PCB footprint. Parts in 20-SSOP package (SN74LVC541ADB, SN74LVC541ADBR) require PCB layout modification.
Q: Is SN74LVC541APWRG4 still available?
A: SN74LVC541APWRG4 is discontinued at DiGi Electronics with 2,140 pcs remaining in stock. For new designs, use SN74LVC541APWR or SN74LVC541APW, which are active products with higher availability.
Q: Do all substitute parts meet RoHS3 compliance?
A: Yes, all listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original part's compliance status.
Q: Which substitute offers the best inventory availability?
A: MC74LCX541DTR2G from onsemi offers the highest inventory (55,400 pcs) in Cut Tape & Digi-Reel packaging. SN74LVC541APWR from Texas Instruments is the second option with 32,300 pcs available.
Q: Can I use CLVC541AQPWRG4Q1 in non-automotive applications?
A: Yes. CLVC541AQPWRG4Q1 is automotive-grade (AEC-Q100 qualified) but functions identically to standard-grade parts in non-automotive circuits. It provides additional qualification margin if needed.
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