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74HC541PW,112 Equivalent & Substitute Parts
Part Overview
The 74HC541PW,112 is a non-inverting buffer logic integrated circuit manufactured by Nexperia USA Inc., designed for 3-state output applications in 20-TSSOP surface mount packaging. This component operates across a 2V to 6V supply voltage range and is rated for -40°C to 125°C operating temperature. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers to ensure design continuity and supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74HC541PW,112 |
| Manufacturer | Nexperia USA Inc. |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 74HC541PW,112 is determined by strict equivalence across the following critical parameters:
- Logic Type: Buffer, Non-Inverting (1 Element, 8 Bit per Element)
- Output Type: 3-State
- Current Ratings: 7.8mA output high and low
- Supply Voltage Range: 2V ~ 6V
- Package / Case: 20-TSSOP surface mount
- Base Product Number: 74HC541
Substitute parts are categorized as follows:
Upgrade Parts (Active Status, Extended Temperature Range): CD74HC541PW and CD74HC541PWR from Texas Instruments provide -55°C to 125°C operating temperature, exceeding the original specification.
Similar Parts (Active Status, Standard Temperature Range): MC74HC541ADTG, MC74HC541ADTR2G (onsemi), SN74HC541PWR, SN74HC541PWT (Texas Instruments), and MM74HC541MTC, MM74HC541MTCX (Fairchild Semiconductor) maintain the core functional and electrical parameters with -40°C to 85°C or -55°C to 125°C operating ranges.
Package Variant: SN74HC541DBR uses 20-SSOP packaging (0.209", 5.30mm Width) instead of 20-TSSOP, requiring PCB layout verification before substitution.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Logic Type | Output Type | Current (mA) | Supply Voltage | Operating Temp (°C) | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| 74HC541PW,112 | Nexperia USA Inc. | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 125 | 20-TSSOP | Obsolete | ROHS3 |
| CD74HC541PW | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -55 ~ 125 | 20-TSSOP | Discontinued at DiGi Electronics | ROHS3 |
| CD74HC541PWR | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -55 ~ 125 | 20-TSSOP | Active | ROHS3 |
| MC74HC541ADTG | onsemi | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -55 ~ 125 | 20-TSSOP | Active | ROHS3 |
| MC74HC541ADTR2G | onsemi | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -55 ~ 125 | 20-TSSOP | Active | ROHS3 |
| MM74HC541MTC | Fairchild Semiconductor | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-TSSOP | Active | Not specified |
| MM74HC541MTCX | Fairchild Semiconductor | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-TSSOP | Active | Not specified |
| SN74HC541DBR | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-SSOP | Active | ROHS3 |
| SN74HC541PW | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-TSSOP | Discontinued at DiGi Electronics | ROHS3 |
| SN74HC541PWR | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-TSSOP | Active | ROHS3 |
| SN74HC541PWT | Texas Instruments | Buffer, Non-Inverting | 3-State | 7.8 / 7.8 | 2V ~ 6V | -40 ~ 85 | 20-TSSOP | Discontinued at DiGi Electronics | ROHS3 |
Engineering Selection Recommendations
For applications requiring immediate substitution of the obsolete 74HC541PW,112:
Primary Selection: CD74HC541PWR (Texas Instruments) is the recommended substitute. This part maintains full electrical and functional equivalence, operates across the extended temperature range of -55°C to 125°C, holds active product status, and is ROHS3 compliant with unlimited moisture sensitivity rating. Tape & Reel packaging supports high-volume production requirements.
Alternative Selection: MC74HC541ADTR2G (onsemi) provides equivalent performance with active status, extended temperature range (-55°C to 125°C), ROHS3 compliance, and the highest available inventory (8266 pcs). Tape & Reel packaging is suitable for automated assembly.
Secondary Selection: SN74HC541PWR (Texas Instruments) offers active product status and ROHS3 compliance with standard temperature range (-40°C to 85°C). This part is suitable for applications not requiring extended low-temperature operation.
Package Consideration: SN74HC541DBR uses 20-SSOP packaging with different physical dimensions (0.209" vs 0.173" width). PCB layout and footprint compatibility must be verified before selection.
Frequently Asked Questions (FAQ)
Q: Can I directly substitute CD74HC541PWR for 74HC541PW,112 without design changes?
A: Yes. Both parts share identical logic type (Buffer, Non-Inverting), output type (3-State), current ratings (7.8mA), supply voltage range (2V ~ 6V), and 20-TSSOP package. The extended operating temperature range (-55°C to 125°C vs -40°C to 125°C) provides additional margin without requiring circuit modification.
Q: What is the difference between MC74HC541ADTG and MC74HC541ADTR2G?
A: Both parts are functionally identical. MC74HC541ADTG is supplied in Tube packaging, while MC74HC541ADTR2G is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume.
Q: Why is SN74HC541DBR listed as a similar part if the package is different?
A: SN74HC541DBR maintains all electrical and functional specifications but uses 20-SSOP packaging (0.209" width) instead of 20-TSSOP (0.173" width). This package difference requires PCB footprint verification and is not a direct drop-in replacement without layout modification.
Q: Are all substitute parts ROHS3 compliant?
A: CD74HC541PW, CD74HC541PWR, MC74HC541ADTG, MC74HC541ADTR2G, SN74HC541DBR, SN74HC541PW, SN74HC541PWR, and SN74HC541PWT are ROHS3 compliant. MM74HC541MTC and MM74HC541MTCX do not specify RoHS status in available documentation.
Q: Which substitute has the best long-term availability?
A: MC74HC541ADTR2G (onsemi) shows the highest inventory level (8266 pcs) with active product status, indicating strong long-term availability. CD74HC541PWR (Texas Instruments) with 2857 pcs in stock and active status is also a reliable choice.
Q: Can I use parts with -40°C to 85°C temperature range in place of the original -40°C to 125°C specification?
A: Only if your application does not require operation above 85°C. SN74HC541PWR, SN74HC541PWT, SN74HC541PW, SN74HC541DBR, MM74HC541MTC, and MM74HC541MTCX are limited to -40°C to 85°C. For full temperature range compatibility, select CD74HC541PWR, CD74HC541PW, MC74HC541ADTG, or MC74HC541ADTR2G.
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