74ACT652SCX Equivalent & Substitute Parts

Part Overview

The 74ACT652SCX is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit bidirectional data transmission with 3-state output capability. This component operates within a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ACT652SCX
Manufacturer	onsemi
Logic Type	Transceiver, Non-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	-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 of the 74ACT652SCX is determined by strict equivalence across the following parameters: logic type (non-inverting transceiver), number of elements (1), bits per element (8), output type (3-state), output current capability (24mA high and low), supply voltage range (4.5V ~ 5.5V), package type (24-SOIC), and mounting method (surface mount). Parts meeting these criteria are classified as parametric equivalents. Parts with extended operating temperature ranges or improved product status are classified as similar alternatives suitable for new designs or long-term availability requirements.

Parameter Comparison

Parameter	74ACT652SCX (Main)	MC74ACT646DWR2G	MC74ACT652DWR2G	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
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	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	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For direct replacement in existing designs, MC74ACT652DWR2G and MC74ACT646DWR2G from onsemi provide parametric equivalence to the 74ACT652SCX. Both maintain identical electrical specifications and 24-SOIC packaging. MC74ACT652DWR2G is the closest match, sharing the same base product number.

For new designs or applications requiring extended component lifecycle, CD74ACT652M96 from Texas Instruments is recommended. This part maintains all electrical and mechanical compatibility while offering active product status and extended operating temperature range (-55°C to 125°C). CD74ACT652M96 also provides unlimited moisture sensitivity rating, eliminating MSL handling constraints.

74ACT11245DWR from Texas Instruments is a parametric equivalent with active status suitable for applications where the specific base product number is not critical. This part meets all functional requirements and offers long-term availability.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT646DWR2G replace 74ACT652SCX in existing applications?

A: MC74ACT646DWR2G is a parametric equivalent meeting all electrical and mechanical specifications of the 74ACT652SCX. Both parts feature identical supply voltage range (4.5V ~ 5.5V), output current (24mA), operating temperature (-40°C ~ 85°C), and 24-SOIC packaging. Direct substitution is supported for pin-compatible applications.

Q: What is the difference between MC74ACT652DWR2G and CD74ACT652M96?

A: Both parts are functionally equivalent to 74ACT652SCX with identical electrical specifications and 24-SOIC packaging. MC74ACT652DWR2G is manufactured by onsemi with obsolete status. CD74ACT652M96 is manufactured by Texas Instruments with active product status and extended operating temperature range (-55°C ~ 125°C versus -40°C ~ 85°C). CD74ACT652M96 also features unlimited moisture sensitivity rating compared to 168-hour MSL for MC74ACT652DWR2G.

Q: Are there package alternatives to 24-SOIC for this transceiver function?

A: All listed substitute parts maintain the 24-SOIC package format. No alternative package options are provided within the parametric equivalent classification for this component.

Q: What does MSL (Moisture Sensitivity Level) mean for component selection?

A: MSL indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before soldering. MSL 1 (Unlimited) allows indefinite storage without special handling. MSL 3 (168 Hours) requires controlled storage and handling procedures. For applications with extended lead times or inventory storage, parts with MSL 1 rating are preferred.

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

A: CD74ACT652M96 from Texas Instruments offers active product status, indicating ongoing manufacturing and support. This part is recommended for new designs or applications requiring extended component lifecycle beyond the obsolete status of the original 74ACT652SCX.

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