74FCT163244APVG8 Equivalent & Substitute Parts

Part Overview

The 74FCT163244APVG8 is a non-inverting buffer logic IC manufactured by Renesas Electronics Corporation, designed for 3.6V operation in 48-SSOP surface mount packaging. This part is classified as a Buffer, Non-Inverting with 4 elements and 4 bits per element, featuring 3-state output capability. The device is currently in active product status and ROHS3 compliant.

Substitute parts are necessary when the primary part becomes unavailable due to inventory constraints, supply chain disruptions, or when alternative voltage specifications better suit system requirements. Several equivalent models from Texas Instruments and Cypress Semiconductor provide functional compatibility with modified electrical parameters.

Key Parameters

Parameter	Specification
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C ~ 85°C (TA)
Voltage - Supply	2.7V ~ 3.6V (Main Part)
Current - Output High, Low	8mA, 24mA (Main Part)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the 74FCT163244APVG8 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Package / Case: 48-BSSOP (0.295", 7.50mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C ~ 85°C (TA)

Variable Parameters Allowing Substitution:

Voltage - Supply: The main part operates at 2.7V ~ 3.6V. Substitute parts operating at 4.5V ~ 5.5V are functionally compatible in systems where the higher voltage specification does not create design conflicts.
Current - Output High, Low: Output current ratings vary among substitutes (8mA/24mA, 24mA/24mA, or 32mA/64mA). Higher current ratings provide enhanced drive capability and are backward compatible with lower-current applications.
Manufacturer: Renesas Electronics, Texas Instruments, and Cypress Semiconductor all produce compatible 74FCT series logic buffers.
Packaging Format: Tape & Reel (TR), Cut Tape (CT), Bulk, and Tube packaging formats are interchangeable for component selection purposes.
Product Status: Active and Obsolete parts are both listed; obsolete parts remain functionally equivalent but may have limited future availability.
Moisture Sensitivity Level (MSL): Varies from 1 (Unlimited) to 3 (168 Hours); lower MSL values indicate less stringent moisture handling requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage - Supply	Current - Output High, Low	Product Status	MSL	Packaging
74FCT163244APVG8	Renesas Electronics	2.7V ~ 3.6V	8mA, 24mA	Active	3 (168 Hours)	Tape & Reel (TR)
74FCT162244ATPVCT	Texas Instruments	4.5V ~ 5.5V	24mA, 24mA	Obsolete	1 (Unlimited)	Cut Tape (CT) & Digi-Reel®
74FCT162244CTPVCT	Cypress Semiconductor	4.5V ~ 5.5V	24mA, 24mA	Active	Not specified	Bulk
74FCT162H244CTPVC	Texas Instruments	4.5V ~ 5.5V	24mA, 24mA	Obsolete	1 (Unlimited)	Tube
CY74FCT162244ATPVC	Texas Instruments	4.5V ~ 5.5V	24mA, 24mA	Obsolete	1 (Unlimited)	Not specified
CY74FCT162244CTPVC	Texas Instruments	4.5V ~ 5.5V	24mA, 24mA	Obsolete	1 (Unlimited)	Tube
CY74FCT162244TPVC	Cypress Semiconductor	4.5V ~ 5.5V	24mA, 24mA	Active	Not specified	Bulk
CY74FCT162244TPVCT	Cypress Semiconductor	4.5V ~ 5.5V	24mA, 24mA	Active	Not specified	Not specified
CY74FCT16244ATPVC	Texas Instruments	4.5V ~ 5.5V	32mA, 64mA	Obsolete	1 (Unlimited)	Not specified
CY74FCT16244CTPVC	Texas Instruments	4.5V ~ 5.5V	32mA, 64mA	Obsolete	1 (Unlimited)	Tube
CY74FCT16244TPVC	Texas Instruments	4.5V ~ 5.5V	32mA, 64mA	Obsolete	1 (Unlimited)	Tube

Engineering Selection Recommendations

Primary Substitutes (Active Status): The 74FCT162244CTPVCT (Cypress Semiconductor), CY74FCT162244TPVC (Cypress Semiconductor), and CY74FCT162244TPVCT (Cypress Semiconductor) are recommended as primary substitutes. All three maintain active product status, ensuring long-term availability and manufacturer support. These parts operate at 4.5V ~ 5.5V supply voltage with 24mA output current ratings, providing equivalent functional performance to the main part within their specified voltage domain.

Secondary Substitutes (Obsolete Status): The 74FCT162244ATPVCT, 74FCT162H244CTPVC, CY74FCT162244ATPVC, and CY74FCT162244CTPVC are classified as obsolete. While functionally equivalent, these parts carry reduced availability risk and should be selected only when primary substitutes are unavailable. All maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings.

Higher Current Output Variants: The CY74FCT16244ATPVC, CY74FCT16244CTPVC, and CY74FCT16244TPVC provide enhanced output current capability (32mA high, 64mA low) compared to the main part. These variants are suitable for applications requiring increased drive strength but are currently obsolete. Selection should be based on specific current delivery requirements.

Voltage Consideration: All substitute parts operate at 4.5V ~ 5.5V supply voltage, which differs from the main part's 2.7V ~ 3.6V specification. System design must accommodate this voltage difference. Substitutes are not suitable for low-voltage applications constrained to 3.6V maximum supply.

Compliance Status: All listed parts maintain ROHS3 compliance and EAR99 export classification. REACH status is unaffected for all variants.

Frequently Asked Questions (FAQ)

Q: Can the 74FCT163244APVG8 be directly replaced with a 4.5V ~ 5.5V substitute?

A: Direct replacement depends on system voltage specifications. The main part operates at 2.7V ~ 3.6V, while all listed substitutes operate at 4.5V ~ 5.5V. If the system power supply is designed for 5V operation, substitutes are functionally compatible. If the system is constrained to 3.6V maximum, substitutes are not suitable.

Q: What is the difference between 74FCT162244 and 74FCT16244 variants?

A: The primary difference is output current capability. 74FCT162244 variants provide 24mA output current (high and low), while 74FCT16244 variants provide 32mA high and 64mA low output current. Both maintain identical logic functionality, element count, and package specifications. Selection depends on circuit current requirements.

Q: Are packaging format differences (Tape & Reel, Cut Tape, Bulk, Tube) significant for substitution?

A: Packaging format affects handling, storage, and assembly processes but does not impact electrical functionality or compatibility. All formats contain identical die and electrical specifications. Selection should be based on manufacturing process requirements and inventory management practices.

Q: What does MSL (Moisture Sensitivity Level) mean for part substitution?

A: MSL indicates moisture handling requirements during storage and assembly. The main part has MSL 3 (168 Hours), requiring desiccant storage and baking before reflow. Substitutes with MSL 1 (Unlimited) have no moisture sensitivity restrictions. Lower MSL values provide manufacturing flexibility but do not affect electrical performance.

Q: Is the obsolete status of certain substitutes a concern?

A: Obsolete parts remain functionally equivalent but have limited future availability. Current inventory levels are provided in the specification data. For long-term production requirements, active status parts (74FCT162244CTPVCT, CY74FCT162244TPVC, CY74FCT162244TPVCT) are recommended to ensure sustained supply.

Q: Do all substitutes maintain the same operating temperature range?

A: Yes. All listed parts operate within -40°C ~ 85°C (TA) temperature range, matching the main part specification.

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