MM74HC541N Equivalent & Substitute Parts

Part Overview

The MM74HC541N is a non-inverting buffer logic integrated circuit manufactured by onsemi, designed for 8-bit buffering applications with 3-state output capability. This device operates across a 2V to 6V supply voltage range and is housed in a 20-pin DIP package. The MM74HC541N is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

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	7.8mA, 7.8mA
Voltage - Supply	2V ~ 6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Series	74HC

Substitute Part Grouping Explanation

Substitute parts for the MM74HC541N are classified based on electrical and mechanical parameter alignment within the 74HC logic family. All substitute candidates maintain identical functional specifications: 1 element, 8 bits per element, non-inverting buffer topology, 3-state output configuration, 7.8mA output current capability, and 2V to 6V supply voltage operation. Package compatibility is maintained through the 20-DIP form factor across all substitutes. Substitution eligibility is determined by matching these core parameters: logic type, bit configuration, output type, current ratings, voltage range, and physical package dimensions.

Parameter Comparison

Parameter	MM74HC541N (onsemi)	SN74HC541N (TI)	CD74HC541E (TI)	TC74HC541APF (Toshiba)	SN74HC541NE4 (TI)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	1	1	1	1	1
Number of Bits per Element	8	8	8	8	8
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	7.8mA, 7.8mA	7.8mA, 7.8mA	7.8mA, 7.8mA	7.8mA, 7.8mA	7.8mA, 7.8mA
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the MM74HC541N across the specified parameter set. Selection among active alternatives should prioritize product status and compliance certifications.

SN74HC541N (Texas Instruments) provides direct substitution with active product status and ROHS3 compliance. This part is available in tube packaging with 2200 units in stock inventory.

CD74HC541E (Texas Instruments) offers extended operating temperature range (-55°C to 125°C) compared to the original specification (-40°C to 85°C), providing broader thermal application coverage while maintaining all other electrical parameters. This part carries ROHS3 compliance and is available in tube packaging.

TC74HC541APF (Toshiba Semiconductor and Storage) delivers equivalent electrical performance with active product status and ROHS3 compliance. Moisture sensitivity level is specified as 1 (Unlimited), matching the original part classification.

SN74HC541NE4 (Texas Instruments) provides parametric equivalence with active product status and ROHS3 compliance, available in tube packaging with 699 units in stock.

Frequently Asked Questions (FAQ)

Q: Can SN74HC541N directly replace MM74HC541N in existing designs?

A: Yes. SN74HC541N maintains identical electrical specifications including logic type, bit configuration, output type, current ratings, voltage supply range, and operating temperature. The 20-DIP package dimensions are equivalent, enabling direct through-hole mounting substitution.

Q: What is the difference between CD74HC541E and other substitutes?

A: CD74HC541E extends the operating temperature range to -55°C to 125°C, compared to -40°C to 85°C for other alternatives. All other electrical and mechanical parameters remain identical. This extended range is suitable for applications requiring broader thermal operation.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts (SN74HC541N, CD74HC541E, TC74HC541APF, and SN74HC541NE4) carry ROHS3 compliance certification. The original MM74HC541N does not specify RoHS status.

Q: Does package type affect substitution compatibility?

A: No. All parts use the 20-DIP (0.300", 7.62mm) package with through-hole mounting. Packaging format (tube) does not affect electrical or mechanical compatibility.

Q: Which substitute offers the best inventory availability?

A: SN74HC541N (Texas Instruments) provides the highest inventory level at 2200 units in stock, followed by CD74HC541E at 1225 units and TC74HC541APF at 1041 units.

Q: Can these parts be used interchangeably in the same circuit board?

A: Yes. All substitute parts are pin-compatible and electrically equivalent across the specified parameter range, enabling interchangeable use within the same PCB design.

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