SN74ABT652DW Equivalent & Substitute Parts

Part Overview

The SN74ABT652DW is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This device operates across a 4.5V to 5.5V supply range and is housed in a 24-SOIC package. The SN74ABT652DW is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Active alternatives with identical or compatible electrical specifications are available from the same manufacturer series.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Series	74ABT
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High	32mA
Current - Output Low	64mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the SN74ABT652DW is determined by the following critical parameters:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 1
Number of Bits per Element: 8
Output Type: 3-State
Current - Output High, Low: 32mA, 64mA
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: -40°C ~ 85°C (TA)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

MFR Recommended Substitute: SN74ABT652ADBR differs only in package format (24-SSOP vs. 24-SOIC) and packaging method (Tape & Reel vs. standard), with active product status.

Parametric Equivalents: SN74ABT543ADW, SN74ABT646ADW, SN74ABT646DW, SN74ABT652ADW, and SN74ABT657ADW maintain identical electrical specifications and 24-SOIC packaging. These parts differ only in base product number designation and product status (all active).

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Bits per Element	Output Type	Output Current (High/Low)	Supply Voltage	Operating Temp	Package	Product Status	Inventory
SN74ABT652DW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Obsolete	970 Pcs
SN74ABT652ADBR	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Active	861 Pcs
SN74ABT543ADW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	2200 Pcs
SN74ABT646ADW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	2254 Pcs
SN74ABT646DW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	1103 Pcs
SN74ABT652ADW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	1239 Pcs
SN74ABT657ADW	Texas Instruments	74ABT	Transceiver, Non-Inverting	8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	902 Pcs

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The SN74ABT652ADBR is the manufacturer-recommended substitute, offering active product status with identical electrical performance; however, the 24-SSOP package requires PCB layout modification compared to the original 24-SOIC footprint.

For direct PCB compatibility without layout changes, SN74ABT652ADW provides an active alternative in the identical 24-SOIC package with the same base product number. SN74ABT543ADW, SN74ABT646ADW, SN74ABT646DW, and SN74ABT657ADW are parametric equivalents with active status and 24-SOIC packaging; these differ in base product designation but deliver equivalent electrical performance and thermal characteristics.

All substitute options are currently in production with established inventory levels, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT652ADBR replace SN74ABT652DW directly on the PCB?

A: SN74ABT652ADBR is electrically equivalent but uses a 24-SSOP package instead of 24-SOIC. Direct PCB substitution is not possible without footprint modification. The 24-SSOP package has a narrower width (5.30mm vs. 7.50mm) and different pin spacing.

Q: What is the difference between SN74ABT652ADW and SN74ABT652DW?

A: SN74ABT652ADW is the active production equivalent of the obsolete SN74ABT652DW. Both share identical electrical specifications, operating temperature range, supply voltage, output current ratings, and 24-SOIC packaging. The primary difference is product status: SN74ABT652DW is obsolete while SN74ABT652ADW is active.

Q: Are SN74ABT543ADW, SN74ABT646ADW, and SN74ABT657ADW interchangeable with SN74ABT652DW?

A: These parts are parametric equivalents with identical electrical performance, output characteristics, and 24-SOIC packaging. They differ in base product number, which reflects different internal logic configurations. Interchangeability depends on the specific application requirements and whether the functional differences between these base products are acceptable for your circuit design.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All substitute parts listed are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original SN74ABT652DW specifications.

Q: Which substitute offers the best inventory availability?

A: SN74ABT646ADW has the highest inventory level at 2254 pieces, followed by SN74ABT543ADW at 2200 pieces. Both are active products in 24-SOIC packaging.

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