74FCT16952ATPVCG4 Equivalent & Substitute Parts

Part Overview

The 74FCT16952ATPVCG4 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, designed for 5.5V operation in a 56-SSOP surface mount package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

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	32mA
Current - Output Low	64mA
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 74FCT16952ATPVCG4 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

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)

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: 56-BSSOP (0.295", 7.50mm Width)
Supplier Device Package: 56-SSOP

Compliance Equivalence Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical specifications, mechanical packaging, and regulatory compliance status. Substitutes are grouped by product status: obsolete parts from the 74FCT series and active parts from the 74ABT series.

Parameter Comparison

Manufacturer Part Number	Series	Product Status	Logic Type	Elements / Bits	Output Type	Current High / Low (mA)	Voltage Supply	Temp Range (°C)	Package	Inventory (Pcs)
74FCT16952ATPVCG4	74FCT	Discontinued	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1112
CY74FCT16652ATPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	2144
CY74FCT16543CTPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1310
CY74FCT16646ATPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	863
CY74FCT16646CTPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	827
CY74FCT16652CTPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1250
CY74FCT16952ATPVC	74FCT	Obsolete	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1364
SN74ABT16470DL	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1027
SN74ABT16543DL	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	1900
SN74ABT16646DL	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	3080
SN74ABT16652DL	74ABT	Active	Transceiver, Non-Inverting	2 / 8	3-State	32 / 64	4.5V ~ 5.5V	-40 ~ 85	56-BSSOP	846

Engineering Selection Recommendations

Active Product Status Substitutes (Recommended for New Designs):

The SN74ABT series parts—SN74ABT16470DL, SN74ABT16543DL, SN74ABT16646DL, and SN74ABT16652DL—maintain active product status with Texas Instruments. These parts satisfy all electrical and mechanical equivalence criteria and carry ROHS3 compliance and REACH unaffected status identical to the original 74FCT16952ATPVCG4. Active status ensures long-term availability and manufacturing support.

Obsolete Product Status Substitutes (Suitable for Legacy System Support):

The CY74FCT series parts—CY74FCT16652ATPVC, CY74FCT16543CTPVC, CY74FCT16646ATPVC, CY74FCT16646CTPVC, CY74FCT16652CTPVC, and CY74FCT16952ATPVC—are classified as obsolete. These parts maintain full electrical and mechanical equivalence with identical supply voltage, output current ratings, operating temperature range, and 56-BSSOP packaging. Obsolete status indicates limited future availability; these parts are suitable for replacement in existing systems where inventory exists but not recommended for new production designs.

Compliance Verification:

All substitute parts listed carry ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original 74FCT16952ATPVCG4. Moisture sensitivity level remains constant at MSL 1 (Unlimited) across all alternatives.

Frequently Asked Questions (FAQ)

Q: What makes a part a valid substitute for the 74FCT16952ATPVCG4?

A: A valid substitute must match all critical electrical parameters (logic type, element count, bit width, output type, current ratings, supply voltage, and operating temperature), mechanical packaging (56-BSSOP surface mount), and compliance certifications (ROHS3, REACH unaffected, MSL 1).

Q: Can I use an active 74ABT series part to replace a discontinued 74FCT series part?

A: Yes. The SN74ABT16470DL, SN74ABT16543DL, SN74ABT16646DL, and SN74ABT16652DL parts are electrically and mechanically equivalent to the 74FCT16952ATPVCG4. Active product status provides superior long-term availability for new designs and ongoing production.

Q: Are there differences between CY74FCT and SN74ABT series parts?

A: Both series maintain identical electrical specifications and mechanical packaging for the listed part numbers. The primary difference is product status: CY74FCT parts are obsolete, while SN74ABT parts are active. Series designation reflects manufacturing lineage but does not affect functional equivalence for the specified parameters.

Q: What is the significance of the packaging designation "56-BSSOP"?

A: The 56-BSSOP (Shrink Small Outline Package) is a surface mount package with 0.295" width and 7.50mm body width. All substitute parts use identical packaging, ensuring direct PCB footprint compatibility without layout modifications.

Q: Why is product status important when selecting a substitute?

A: Product status indicates manufacturing support and availability. Active parts (74ABT series) are recommended for new designs due to ongoing production and long-term supply assurance. Obsolete parts (74FCT series) are suitable for legacy system support where existing inventory is available but carry risk of future unavailability.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All listed substitutes carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Can I mix 74FCT and 74ABT series parts in the same system?

A: Yes. Both series maintain identical electrical specifications for the listed part numbers, including supply voltage (4.5V ~ 5.5V), output current (32mA high, 64mA low), and operating temperature range (-40°C ~ 85°C). Functional interchangeability is assured within the specified parameters.

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