SN74AHC541PW Equivalent & Substitute Parts

Part Overview

The SN74AHC541PW is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, housed in a 20-TSSOP surface mount package. This device functions as a 1-element, 8-bit buffer with 3-state output capability, operating across a 2V to 5.5V supply voltage range. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure supply chain availability.

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	8mA, 8mA
Voltage - Supply	2V ~ 5.5V
Operating Temperature Range	-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 eligibility for the SN74AHC541PW is determined by strict equivalence across 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: 8mA, 8mA
Voltage - Supply: 2V ~ 5.5V
Package / Case: 20-TSSOP
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain these electrical and mechanical specifications. Variations in operating temperature range, product status, manufacturer, and packaging format (tube, cut tape, tape & reel) do not affect functional substitutability within the defined parameter set.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements / Bits	Output Type	Current (mA)	Voltage Supply	Temp Range (°C)	Package	Product Status
SN74AHC541PW	Texas Instruments	74AHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Discontinued
SN74AHC541PWR	Texas Instruments	74AHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Active
74VHC541MTC	onsemi	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 85	20-TSSOP	Active
74VHC541MTCX	onsemi	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 85	20-TSSOP	Active
MC74VHC541DTG	onsemi	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
MC74VHC541DTR2G	onsemi	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
74AHC541PW,118	Nexperia USA Inc.	74AHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Active
74VHC541PW,118	Nexperia USA Inc.	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Active
74AHC541PW-Q100J	Nexperia USA Inc.	74AHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Active
74VHC541PW-Q100J	Nexperia USA Inc.	74VHC	Buffer, Non-Inverting	1 / 8	3-State	8, 8	2V ~ 5.5V	-40 ~ 125	20-TSSOP	Active

Engineering Selection Recommendations

For direct replacement of the discontinued SN74AHC541PW, the SN74AHC541PWR from Texas Instruments is the primary choice, maintaining identical electrical specifications, temperature range (-40°C to 125°C), and series designation (74AHC). This part is currently active and available in cut tape and Digi-Reel packaging formats.

The Nexperia USA Inc. variants 74AHC541PW,118 and 74AHC541PW-Q100J provide equivalent functionality with active product status. The Q100J variant includes AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

onsemi 74VHC series parts (74VHC541MTC, 74VHC541MTCX, MC74VHC541DTG, MC74VHC541DTR2G) and Nexperia 74VHC541PW,118 and 74VHC541PW-Q100J are functionally equivalent across all critical electrical parameters. The MC74VHC541DTG and MC74VHC541DTR2G variants extend the operating temperature range to -55°C to 125°C, providing enhanced low-temperature performance when required.

All listed substitutes maintain ROHS3 compliance, MSL Level 1 rating, and identical 20-TSSOP package geometry, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC541PWR directly replace the SN74AHC541PW?

A: Yes. Both parts share identical electrical specifications, operating temperature range (-40°C to 125°C), output current ratings (8mA), supply voltage range (2V to 5.5V), and 20-TSSOP package dimensions. The primary difference is packaging format (cut tape/Digi-Reel versus tube) and product status (active versus discontinued).

Q: What is the difference between 74AHC and 74VHC series buffers?

A: Both series meet the specified electrical parameters for this application. The 74VHC series is manufactured by onsemi and Nexperia, while 74AHC is manufactured by Texas Instruments and Nexperia. All variants listed maintain identical logic function, output current, voltage supply range, and package configuration.

Q: Are the onsemi MC74VHC541DTG and MC74VHC541DTR2G suitable substitutes?

A: Yes. These parts meet all critical electrical and mechanical parameters. The extended operating temperature range (-55°C to 125°C) provides additional margin for low-temperature applications. The primary difference is packaging format (tube versus tape & reel).

Q: Does the AEC-Q100 qualification on 74AHC541PW-Q100J affect substitutability?

A: No. AEC-Q100 qualification is an additional certification that does not alter the core electrical specifications. The Q100J variant is suitable for automotive applications requiring this qualification, while non-qualified variants remain functionally equivalent for standard industrial applications.

Q: Are all listed parts compatible with existing PCB layouts designed for the SN74AHC541PW?

A: Yes. All substitute parts use the identical 20-TSSOP package with 0.173" width and 4.40mm dimensions, ensuring direct pin-for-pin compatibility without PCB modifications.

Q: What packaging formats are available for these substitute parts?

A: Substitute parts are available in tube, cut tape (CT) & Digi-Reel, and tape & reel (TR) formats. Selection depends on production volume and assembly process requirements. All formats contain the same die and electrical performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message