74AC541SCX Equivalent & Substitute Parts

Part Overview

The 74AC541SCX is an active, ROHS3-compliant non-inverting buffer logic IC manufactured by onsemi. This 20-SOIC surface mount device provides 1 element with 8 bits per element and 3-state output capability, operating across a 2V to 6V supply voltage range. The device is supplied in Cut Tape (CT) & Digi-Reel® packaging with 20,200 pieces currently in stock.

Substitute parts are identified based on matching core electrical parameters: logic type, number of elements, bits per element, output configuration, output current ratings, package type, and compliance certifications. Packaging format variations (Cut Tape, Tape & Reel, Tube) and inventory availability may necessitate alternative part selection.

Key Parameters

Parameter	Specification
Manufacturer Part Number	74AC541SCX
Manufacturer	onsemi
Logic Type	Buffer, Non-Inverting
Number of Elements	1
Bits per Element	8
Output Type	3-State
Current - Output High/Low	24mA / 24mA
Voltage - Supply	2V ~ 6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 74AC541SCX are classified based on strict electrical and mechanical parameter matching:

Direct Substitutes share identical or equivalent electrical specifications, package dimensions, and functional characteristics. These parts maintain the same logic type (Buffer, Non-Inverting), element count (1), bit width (8), output configuration (3-State), and output current ratings (24mA/24mA). All substitute parts use the 20-SOIC package with 0.295" width and 7.50mm dimensions.

Packaging Format Variations are permitted substitutes when electrical parameters remain constant. The 74AC541SCX is supplied in Cut Tape (CT) & Digi-Reel® format; equivalent parts may be available in Tape & Reel (TR) or Tube packaging without affecting functional compatibility.

Voltage Supply Range Considerations determine substitution eligibility. The primary part operates at 2V ~ 6V. Substitute parts with extended or equivalent voltage ranges (1.5V ~ 5.5V or 2V ~ 6V) are functionally compatible within the 2V ~ 6V operating window.

Temperature Range Variations do not restrict substitution when the substitute part's operating range encompasses or exceeds the primary part's range (-40°C ~ 85°C).

Compliance and Certification requirements are maintained across all substitutes: ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification.

Parameter Comparison

Parameter	74AC541SCX (onsemi)	MC74AC541DWR2G (onsemi)	MC74AC541DWG (onsemi)	CD74AC541M96 (Texas Instruments)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	1	1	1	1
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	2V ~ 6V	2V ~ 6V	2V ~ 6V	1.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C
Package / Case	20-SOIC (0.295", 7.50mm)	20-SOIC (0.295", 7.50mm)	20-SOIC (0.295", 7.50mm)	20-SOIC (0.295", 7.50mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tube	Cut Tape (CT) & Digi-Reel®
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)
Product Status	Active	Active	Active	Active
Inventory (Pcs)	20,200	10,100	942	8,150

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full ROHS3 compliance, ensuring regulatory and environmental standards are met across alternative selections.

MC74AC541DWR2G (onsemi, Tape & Reel) provides direct electrical equivalence to the 74AC541SCX with identical voltage supply range (2V ~ 6V) and operating temperature range (-40°C ~ 85°C). This part differs only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel®), making it suitable for high-volume production environments where reel-based component handling is standard.

MC74AC541DWG (onsemi, Tube) maintains identical electrical specifications and temperature range as the primary part. Tube packaging is appropriate for lower-volume applications or manual assembly processes. Inventory availability (942 pieces) is lower than alternative options.

CD74AC541M96 (Texas Instruments, Cut Tape) offers extended operating temperature range (-55°C ~ 125°C) and superior moisture sensitivity rating (MSL 1, Unlimited versus MSL 3, 168 Hours). The voltage supply range (1.5V ~ 5.5V) encompasses the primary part's 2V ~ 6V window. This part is suitable for applications requiring enhanced environmental performance or extended temperature operation.

Selection should be based on packaging requirements, inventory availability, and environmental performance needs within the specified electrical parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can MC74AC541DWR2G be used as a direct replacement for 74AC541SCX?

A: Yes. Both parts share identical logic type, element count, bit width, output configuration, output current ratings, voltage supply range (2V ~ 6V), operating temperature range (-40°C ~ 85°C), and 20-SOIC package dimensions. The only difference is packaging format: MC74AC541DWR2G uses Tape & Reel format while 74AC541SCX uses Cut Tape & Digi-Reel® format. Electrical and functional compatibility is complete.

Q: What is the difference between the onsemi and Texas Instruments versions?

A: The CD74AC541M96 (Texas Instruments) differs in three areas: voltage supply range (1.5V ~ 5.5V versus 2V ~ 6V), operating temperature range (-55°C ~ 125°C versus -40°C ~ 85°C), and moisture sensitivity level (MSL 1 Unlimited versus MSL 3 168 Hours). All other electrical parameters—logic type, element count, bit width, output type, and output current—remain identical. The Texas Instruments part is suitable for applications requiring extended temperature performance or superior moisture resistance.

Q: Are all substitute parts in the same 20-SOIC package?

A: Yes. All substitute parts use the 20-SOIC package with identical dimensions (0.295" width, 7.50mm). Package compatibility is maintained across all alternatives. Differences exist only in packaging format (Cut Tape, Tape & Reel, or Tube), which affects handling and supply method, not physical component dimensions or PCB footprint.

Q: Does the voltage supply range difference affect substitution?

A: The CD74AC541M96 operates at 1.5V ~ 5.5V, which overlaps with the primary part's 2V ~ 6V range. Within the 2V ~ 5.5V window, both parts are electrically equivalent. If your application requires operation above 5.5V, the CD74AC541M96 is not suitable. For applications operating within 2V ~ 5.5V, the Texas Instruments part is fully compatible.

Q: What does MSL rating mean for component selection?

A: Moisture Sensitivity Level (MSL) indicates how long a component can be exposed to moisture before soldering. MSL 3 (168 Hours) allows 168 hours of exposure; MSL 1 (Unlimited) has no time restriction. The CD74AC541M96 with MSL 1 is suitable for applications with extended storage or delayed assembly. The onsemi parts with MSL 3 require soldering within 168 hours of moisture exposure.

Q: Which substitute part should I select for high-volume production?

A: MC74AC541DWR2G in Tape & Reel format is optimized for high-volume automated assembly. This format integrates with standard pick-and-place equipment and reel-based component handling systems. Electrical specifications are identical to the primary part.

Q: Can I mix different substitute parts in the same assembly?

A: Yes. All substitute parts are electrically and functionally equivalent within their specified operating ranges. They share identical 20-SOIC package dimensions and pinout. Mixing parts from different manufacturers or packaging formats does not affect circuit performance, provided all parts operate within the application's voltage and temperature requirements.

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