74ABT652CMTCX Equivalent & Substitute Parts

Part Overview

The 74ABT652CMTCX is a non-inverting transceiver logic IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability. Designed for 4.5V to 5.5V supply operation, this component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent active alternatives is essential for design continuity and procurement reliability.

Key Parameters

Parameter	Value
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)
Mounting Type	Surface Mount
Package / Case	24-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Series	74ABT

Substitute Part Grouping Explanation

Substitute parts for the 74ABT652CMTCX are identified based on strict parameter alignment across the following criteria:

Core Electrical Parameters (Must Match):

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)
Series: 74ABT

Mechanical Parameters (Must Match or Be Compatible):

Mounting Type: Surface Mount
Package / Case: 24-pin configuration (TSSOP or SSOP variants)
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compliance & Status:

REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS: 8542.39.0001

Three substitute parts meet these criteria with active product status and RoHS3 compliance.

Parameter Comparison

Parameter	74ABT652CMTCX (Main)	SN74ABT652ADBR	SN74ABT543APWR	SN74ABT646PWR
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-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	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	24-TSSOP (0.173", 4.40mm Width)	24-SSOP (0.209", 5.30mm Width)	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Not specified	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Inventory Availability	716 Pcs	861 Pcs	3083 Pcs	710 Pcs

Engineering Selection Recommendations

SN74ABT652ADBR (Texas Instruments) This substitute maintains electrical parameter equivalence with the 74ABT652CMTCX. The package variant differs (24-SSOP vs. 24-TSSOP), resulting in a 0.209" width versus 0.173" width. This package difference requires PCB layout verification for footprint compatibility. Active product status and ROHS3 compliance provide long-term supply assurance. Inventory availability is adequate at 861 pieces.

SN74ABT543APWR (Texas Instruments) This part achieves full electrical and mechanical parameter equivalence, including identical 24-TSSOP packaging (0.173", 4.40mm Width). Active product status and ROHS3 compliance ensure procurement continuity. Highest inventory availability at 3083 pieces supports immediate deployment. No layout modifications are required for direct substitution.

SN74ABT646PWR (Texas Instruments) This substitute provides complete electrical and mechanical parameter alignment with 24-TSSOP packaging identical to the original part. Active product status and ROHS3 compliance guarantee supply reliability. Inventory availability at 710 pieces is sufficient for production requirements. Direct pin-compatible substitution is supported.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT652ADBR be used as a direct replacement for 74ABT652CMTCX? A: Electrical parameters are fully equivalent. However, the package differs: SN74ABT652ADBR uses 24-SSOP (0.209" width) while 74ABT652CMTCX uses 24-TSSOP (0.173" width). PCB footprint compatibility must be verified before implementation.

Q: Which substitute requires no PCB layout modifications? A: Both SN74ABT543APWR and SN74ABT646PWR use identical 24-TSSOP packaging (0.173", 4.40mm Width) and are pin-compatible with the original 74ABT652CMTCX. No layout changes are necessary.

Q: What is the difference between TSSOP and SSOP packaging? A: TSSOP (Thin Shrink Small Outline Package) has a narrower body width (0.173") compared to SSOP (Shrink Small Outline Package) at 0.209". Both are 24-pin surface mount packages, but footprint dimensions differ, affecting PCB compatibility.

Q: Are all substitute parts RoHS3 compliant? A: Yes. SN74ABT652ADBR, SN74ABT543APWR, and SN74ABT646PWR are all ROHS3 compliant. The original 74ABT652CMTCX RoHS status is not specified in available documentation.

Q: Which substitute has the best inventory availability? A: SN74ABT543APWR offers the highest inventory at 3083 pieces, providing the greatest supply assurance for production volumes.

Q: Do all substitutes operate within the same temperature range? A: Yes. All substitute parts operate across -40°C to 85°C (TA), matching the original 74ABT652CMTCX specification.

Q: Are the electrical output characteristics identical across all substitutes? A: Yes. All substitutes maintain 32mA output high current and 64mA output low current, with 4.5V to 5.5V supply voltage and 3-state output configuration.

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