MC74ACT652DWR2 Equivalent & Substitute Parts

Part Overview

The MC74ACT652DWR2 is a non-inverting transceiver logic IC with 1 element, 8 bits per element, and 3-state output capability. Housed in a 24-SOIC package, this component operates across a 4.5V to 5.5V supply voltage range with 24mA output current capability. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Part Number	MC74ACT652DWR2
Manufacturer	onsemi
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Bits per Element	8
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	24-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the MC74ACT652DWR2 is determined by strict equivalence across the following parameters:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 1
Bits per Element: 8
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 4.5V ~ 5.5V
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes: Parts from the same manufacturer (onsemi) with identical electrical and mechanical specifications.

Parametric Equivalents: Parts from alternative manufacturers (Texas Instruments) that meet all core electrical and mechanical parameters, though they may differ in product status, compliance certifications, or temperature operating ranges.

Parameter Comparison

Parameter	MC74ACT652DWR2	MC74ACT652DWR2G	MC74ACT646DWR2G	CD74ACT652M96	74ACT11245DWR
Manufacturer	onsemi	onsemi	onsemi	Texas Instruments	Texas Instruments
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting
Number of Elements	1	1	1	1	1
Bits per Element	8	8	8	8	8
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	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	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C
Package / Case	24-SOIC	24-SOIC	24-SOIC	24-SOIC	24-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Obsolete	Obsolete	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MC74ACT652DWR2G (onsemi): Direct manufacturer substitute with identical electrical specifications. Offers ROHS3 compliance and active product support from onsemi, though MSL rating increases to 3. Suitable for applications requiring onsemi sourcing continuity.

MC74ACT646DWR2G (onsemi): Parametric equivalent with identical core electrical and mechanical parameters. Maintains onsemi manufacturer relationship with ROHS3 compliance. Base product number differs (74ACT646 vs. 74ACT652), indicating potential functional variations not specified in provided parameters.

CD74ACT652M96 (Texas Instruments): Parametric equivalent with extended operating temperature range (-55°C to 125°C) and active product status. Offers ROHS3 compliance and MSL rating of 1. Suitable for applications requiring extended temperature performance or long-term availability assurance.

74ACT11245DWR (Texas Instruments): Parametric equivalent with active product status and ROHS3 compliance. Maintains standard operating temperature range (-40°C to 85°C) and MSL rating of 1. Provides alternative sourcing from Texas Instruments with confirmed long-term availability.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT652DWR2G be used as a direct replacement for MC74ACT652DWR2?

A: Yes. Both parts share identical electrical specifications, logic type, element count, bit configuration, output type, current ratings, supply voltage range, operating temperature, and 24-SOIC package. The primary differences are product status (obsolete vs. obsolete) and compliance certifications (RoHS and MSL ratings).

Q: What is the difference between MC74ACT646DWR2G and MC74ACT652DWR2?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The base product numbers differ (74ACT646 vs. 74ACT652), which may indicate functional variations not detailed in the provided parameters. Consult manufacturer datasheets for functional differences.

Q: Why does CD74ACT652M96 have a wider operating temperature range?

A: CD74ACT652M96 is specified for -55°C to 125°C operation, compared to -40°C to 85°C for the MC74ACT652DWR2. This extended range is a characteristic of the Texas Instruments product line and does not affect compatibility for applications within the standard -40°C to 85°C range.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts are housed in 24-SOIC (0.295", 7.50mm Width) surface mount packages, ensuring mechanical and footprint compatibility.

Q: What does RoHS3 compliance mean for substitution?

A: ROHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. The original MC74ACT652DWR2 is RoHS non-compliant, while all substitute parts are ROHS3 compliant. This affects regulatory and environmental requirements but does not impact electrical functionality.

Q: Which substitute part offers the best long-term availability?

A: CD74ACT652M96 and 74ACT11245DWR both carry active product status from Texas Instruments, indicating ongoing manufacturing and support. MC74ACT652DWR2G and MC74ACT646DWR2G remain obsolete despite onsemi sourcing.

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