CD74ACT540M96G4 Equivalent & Substitute Parts

Part Overview

The CD74ACT540M96G4 is a Buffer, Inverting logic IC manufactured by Texas Instruments, featuring 1 element with 8 bits per element and 3-state output capability. This 20-SOIC surface mount device operates across a 4.5V to 5.5V supply voltage range and supports output currents of 24mA for both high and low states. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Logic Type	Buffer, Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-55°C ~ 125°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the CD74ACT540M96G4 is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Inverting
Number of Elements: 1
Number of Bits per Element: 8
Output Type: 3-State
Output Current Capability: 24mA (both high and low)
Supply Voltage Range: 4.5V ~ 5.5V
Package / Case: 20-SOIC
Mounting Type: Surface Mount
Base Product Number: 74ACT

Substitute parts must maintain identical electrical specifications and physical packaging to ensure direct functional replacement without circuit redesign.

Parameter Comparison

Parameter	CD74ACT540M96G4 (Main)	CD74ACT540M96 (Parametric Equivalent)	MC74ACT540DWG (MFR Recommended)	MC74ACT540DWR2G (MFR Recommended)
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi
Logic Type	Buffer, Inverting	Buffer, Inverting	Buffer, Inverting	Buffer, Inverting
Number of Elements	1	1	1	1
Number of 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	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-55°C ~ 125°C (TA)	-55°C ~ 125°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

CD74ACT540M96 (Texas Instruments, Parametric Equivalent): This part maintains full electrical and thermal specification equivalence with the discontinued CD74ACT540M96G4, including the extended operating temperature range of -55°C to 125°C and MSL rating of 1. This substitute is the primary choice for applications requiring identical performance characteristics and is available in active production status.

MC74ACT540DWG (onsemi, MFR Recommended, Tube Packaging): This onsemi equivalent provides full electrical compatibility across all critical parameters. The operating temperature range is reduced to -40°C to 85°C, and the MSL rating is 3 (168 hours). Selection of this part is appropriate for applications operating within the -40°C to 85°C temperature window and where tube packaging meets procurement requirements.

MC74ACT540DWR2G (onsemi, MFR Recommended, Tape & Reel Packaging): This onsemi equivalent is electrically identical to MC74ACT540DWG with the same operating temperature range (-40°C to 85°C) and MSL rating (3, 168 hours). This part is suitable for high-volume production environments where tape and reel packaging is standard.

Frequently Asked Questions (FAQ)

Q: Can CD74ACT540M96 directly replace CD74ACT540M96G4? A: Yes. CD74ACT540M96 is a parametric equivalent with identical electrical specifications, output current ratings, supply voltage range, and package configuration. The primary difference is product status; CD74ACT540M96 is in active production.

Q: What is the difference between the Texas Instruments and onsemi substitutes? A: Both manufacturers provide 74ACT540 logic buffers with identical electrical performance for the core specifications. The onsemi parts (MC74ACT540DWG and MC74ACT540DWR2G) operate within a narrower temperature range (-40°C to 85°C versus -55°C to 125°C) and have a higher moisture sensitivity level (MSL 3 versus MSL 1). Selection depends on application temperature requirements and packaging format needs.

Q: Does operating temperature range affect substitution compatibility? A: Operating temperature range is a critical parameter for substitution. If your application requires operation below -40°C or above 85°C, the onsemi parts are not suitable. CD74ACT540M96 maintains the full -55°C to 125°C range and is the appropriate choice for extended temperature applications.

Q: What is the significance of MSL (Moisture Sensitivity Level) rating? A: MSL rating indicates moisture sensitivity during storage and handling. MSL 1 (Unlimited) allows indefinite shelf life under standard conditions. MSL 3 (168 hours) requires controlled storage conditions and limits shelf life to 168 hours after moisture barrier bag opening. Choose based on your supply chain and storage capabilities.

Q: Are packaging differences between Tube and Tape & Reel significant? A: Packaging format affects procurement and assembly processes but does not impact electrical performance. Tube packaging (MC74ACT540DWG) is suitable for lower-volume or manual assembly operations. Tape & Reel packaging (MC74ACT540DWR2G) is optimized for automated pick-and-place assembly in high-volume production.

Q: Can I use MC74ACT540DWG or MC74ACT540DWR2G in applications requiring -55°C operation? A: No. The onsemi parts are rated only to -40°C minimum. For applications requiring -55°C operation, use CD74ACT540M96, which maintains the full -55°C to 125°C operating range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message