CY74FCT16652ATPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT16652ATPVC is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. This device functions as a 2-element, 8-bit per element transceiver with 3-state output capability, housed in a 56-SSOP surface mount package. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within the same parameter envelope.

Key Parameters

Parameter	Value
Logic Type	Transceiver, Non-Inverting
Number of Elements	2
Number of Bits per Element	8
Output Type	3-State
Current - Output High	32 mA
Current - Output Low	64 mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	56-BSSOP (0.295", 7.50mm Width)
Supplier Device Package	56-SSOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the CY74FCT16652ATPVC is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 2
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)
Package / Case: 56-BSSOP (0.295", 7.50mm Width)
Supplier Device Package: 56-SSOP
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain these specifications without deviation. Substitutes are grouped into two categories: obsolete series equivalents (74FCT) and active series alternatives (74ABT). The 74ABT series parts provide the same functional and electrical characteristics with active product status, offering long-term availability advantages.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Logic Type	Elements / Bits	Output Type	I/O Current (H/L)	Supply Voltage	Temp Range	Package	Inventory (Pcs)
CY74FCT16652ATPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	2144
CY74FCT16543CTPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	1310
CY74FCT16646ATPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	863
CY74FCT16646CTPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	827
CY74FCT16652CTPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	1250
CY74FCT16952ATPVC	Texas Instruments	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	1364
SN74ABT16470DL	Texas Instruments	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	1027
SN74ABT16543DL	Texas Instruments	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	1900
SN74ABT16646DL	Texas Instruments	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	3080
SN74ABT16652DL	Texas Instruments	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	846
SN74ABT16657DL	Texas Instruments	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	56-SSOP	2100

Engineering Selection Recommendations

For Obsolete Design Continuation: When the CY74FCT16652ATPVC is no longer available, the CY74FCT16652CTPVC provides direct equivalence within the obsolete 74FCT series. Both parts maintain identical electrical specifications and packaging. The CY74FCT16652CTPVC offers 1250 units in current inventory.

For Long-Term Availability: The SN74ABT16652DL is the active-status equivalent within the 74ABT series. This part maintains all electrical and mechanical specifications of the CY74FCT16652ATPVC while offering active product status from Texas Instruments. The 74ABT series provides superior long-term procurement security and is ROHS3 compliant with REACH unaffected status.

Alternative Functional Equivalents: The SN74ABT16646DL and SN74ABT16657DL provide functional equivalence with active product status. These parts maintain identical electrical parameters and packaging specifications. The SN74ABT16646DL has the highest current inventory at 3080 units.

Compliance Verification: All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH unaffected status, ensuring regulatory alignment with the original CY74FCT16652ATPVC.

Frequently Asked Questions (FAQ)

Q: Can the CY74FCT16652ATPVC be directly replaced with SN74ABT16652DL?

A: Yes. Both parts maintain identical electrical specifications: 2-element, 8-bit per element transceiver configuration, 3-state output, 32mA/64mA output current, 4.5V to 5.5V supply voltage, -40°C to 85°C operating temperature, and 56-SSOP packaging. The SN74ABT16652DL offers active product status.

Q: What is the difference between CY74FCT16652ATPVC and CY74FCT16652CTPVC?

A: Both parts are electrically and mechanically identical. The difference is in packaging designation: ATPVC indicates tube packaging in the original specification, while CTPVC also indicates tube packaging. Both are obsolete 74FCT series parts with identical functional parameters.

Q: Why are there multiple substitute options listed?

A: Multiple substitutes are provided because different base part numbers (74FCT16543, 74FCT16646, 74FCT16652, 74FCT16952) within the 74FCT series, and their 74ABT series equivalents, all maintain the same electrical and mechanical specifications required for transceiver functionality. Selection depends on design requirements and inventory availability.

Q: Is the 56-SSOP package identical across all substitute parts?

A: Yes. All substitute parts use the 56-BSSOP package (0.295", 7.50mm Width) with 56-SSOP supplier device package designation. This ensures mechanical compatibility and PCB layout compatibility.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH unaffected status, matching the compliance profile of the CY74FCT16652ATPVC.

Q: Should I prioritize active or obsolete series parts for new designs?

A: For new designs, active series parts (74ABT) are recommended due to long-term availability assurance. For legacy design support where the original 74FCT series is required, obsolete equivalents within the 74FCT series are available while inventory permits.

Q: Are there any electrical performance differences between 74FCT and 74ABT series substitutes?

A: No. Within the specified parameter set (output current, supply voltage, operating temperature, logic type, element count, and bit configuration), both series maintain identical electrical specifications. Differences exist in other parameters not specified for this substitution analysis.

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