SN74AC04PW Equivalent & Substitute Parts

Part Overview

The SN74AC04PW is a 6-channel inverter logic IC in 14-TSSOP surface mount packaging manufactured by Texas Instruments. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74AC04 series provides standard inverter functionality across the 2V to 6V supply voltage range with consistent propagation delay characteristics.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V
Max Propagation Delay @ 5V, 50pF	7ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74AC04PW is determined by strict equivalence across the following critical parameters:

Logic Type: Inverter with 6 channels, 1 input per channel
Voltage Supply Range: 2V ~ 6V
Output Current Capability: 24mA high and low
Propagation Delay: 7ns maximum at 5V, 50pF load
Operating Temperature Range: -40°C ~ 85°C
Package Type: 14-TSSOP surface mount
Compliance: ROHS3, MSL Level 1

Substitutes are grouped into two categories:

Direct Manufacturer Substitutes: Parts with identical electrical specifications and different packaging formats (Cut Tape & Digi-Reel or Tape & Reel).

Parametric Equivalent: Parts meeting all electrical specifications with alternative packaging (Tube) from the same base product family.

Parameter Comparison

Part Number	Manufacturer	Packaging	Product Status	Quiescent Current (Max)	Propagation Delay	Inventory
SN74AC04PW	Texas Instruments	Tube	Discontinued	2 µA	7ns @ 5V, 50pF	3107 Pcs
SN74AC04PWR	Texas Instruments	Cut Tape & Digi-Reel	Active	2 µA	7ns @ 5V, 50pF	2674 Pcs
74AC04MTCX	onsemi	Cut Tape & Digi-Reel	Active	2 µA	7ns @ 5V, 50pF	1401 Pcs
MC74AC04DTR2G	onsemi	Tape & Reel	Active	4 µA	7ns @ 5V, 50pF	3900 Pcs
74AC04MTC	onsemi	Tube	Active	2 µA	7ns @ 5V, 50pF	1382 Pcs

Engineering Selection Recommendations

SN74AC04PWR (Texas Instruments): Recommended as the primary substitute. Maintains Texas Instruments manufacturing continuity with identical electrical specifications and active product status. Available in Cut Tape & Digi-Reel packaging suitable for automated assembly.

74AC04MTCX (onsemi): Suitable alternative with active status and identical quiescent current specification. Cut Tape & Digi-Reel packaging supports high-volume production requirements.

74AC04MTC (onsemi): Parametric equivalent with Tube packaging matching the original SN74AC04PW format. Maintains identical quiescent current and propagation delay specifications with active product status.

MC74AC04DTR2G (onsemi): Functionally compatible with maximum quiescent current of 4 µA (versus 2 µA nominal). Tape & Reel packaging suitable for automated pick-and-place assembly. Verify quiescent current tolerance in application before selection.

All substitutes maintain ROHS3 compliance, MSL Level 1 rating, and identical 14-TSSOP package dimensions.

Frequently Asked Questions (FAQ)

Q: Can I use MC74AC04DTR2G as a direct replacement for SN74AC04PW?

A: Yes, with consideration for quiescent current. MC74AC04DTR2G specifies 4 µA maximum quiescent current compared to 2 µA for the original part. All other electrical parameters are identical. Verify that the application power budget accommodates the higher quiescent current specification.

Q: What is the difference between the packaging options?

A: SN74AC04PW uses Tube packaging. Substitutes are available in Cut Tape & Digi-Reel (SN74AC04PWR, 74AC04MTCX), Tape & Reel (MC74AC04DTR2G), and Tube (74AC04MTC). Packaging selection depends on assembly process requirements and volume. Tube and Tape & Reel formats are suitable for manual or low-volume assembly; Cut Tape & Digi-Reel and Tape & Reel support automated high-volume production.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and MSL Level 1 rating, matching the original part specifications.

Q: Which substitute offers the best availability?

A: MC74AC04DTR2G currently has the highest inventory at 3900 pieces. SN74AC04PWR (2674 pieces) and 74AC04MTC (1382 pieces) provide additional sourcing options.

Q: Can I mix different manufacturers in the same design?

A: Yes. All substitutes meet identical electrical specifications for the 14-TSSOP 74AC04 inverter function. Texas Instruments (SN74AC04PWR) and onsemi (74AC04MTCX, MC74AC04DTR2G, 74AC04MTC) parts are functionally interchangeable within the specified parameters.

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