CY74FCT16244ATPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT16244ATPVC is a non-inverting buffer IC manufactured by Texas Instruments, featuring 4 elements with 4 bits per element and 3-state output capability in a 48-SSOP package. This part operates at 4.5V to 5.5V supply voltage with output currents of 32mA (high) and 64mA (low). The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CY74FCT16244ATPVC
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
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	48-BSSOP (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the CY74FCT16244ATPVC is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic type: Buffer, Non-Inverting
Number of elements: 4
Number of bits per element: 4
Output type: 3-State
Package type: 48-SSOP (mechanical compatibility)
Operating temperature range: -40°C ~ 85°C

Electrical Compatibility Categories:

Direct Electrical Equivalents (5.5V Supply): Parts maintaining 4.5V ~ 5.5V supply voltage with identical or higher output current ratings (32mA/64mA minimum). These include 74FCT162244ATPVG, 74FCT162244ATPVG8, 74FCT162244CTPVG, and 74FCT16244CTPAG8.
Lower Voltage Equivalents (3.6V Supply): Parts operating at 2.7V ~ 3.6V supply voltage with reduced output current ratings (8mA/24mA). These include 74FCT163244APVG, 74FCT163244APVG8, 74FCT163244CPVG, and 74FCT163244CPVG8. These are suitable only for applications where lower supply voltage is acceptable.
Advanced Technology Equivalent (3.6V Supply): The SN74LVCZ16244ADLR represents a modern low-voltage CMOS alternative with 2.7V ~ 3.6V supply and 24mA output current, suitable for new designs requiring lower power consumption.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Output Current (High/Low)	Package	Product Status	MSL
CY74FCT16244ATPVC	Texas Instruments	4.5V ~ 5.5V	32mA / 64mA	48-BSSOP	Obsolete	1
74FCT162244ATPVG	IDT	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active	N/A
74FCT162244ATPVG8	Renesas Electronics	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active	3
74FCT162244CTPVG	IDT	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active	N/A
74FCT16244CTPAG8	Renesas Electronics	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Obsolete	1
74FCT163244APVG	IDT	2.7V ~ 3.6V	8mA / 24mA	48-BSSOP	Active	N/A
74FCT163244APVG8	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	48-BSSOP	Active	3
74FCT163244CPVG	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	48-BSSOP	Active	3
74FCT163244CPVG8	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	48-BSSOP	Active	3
74FCT16244ATPVG	IDT	4.5V ~ 5.5V	32mA / 64mA	48-BSSOP	Active	N/A
SN74LVCZ16244ADLR	Texas Instruments	2.7V ~ 3.6V	24mA / 24mA	48-BSSOP	Active	1

Engineering Selection Recommendations

For 5.5V Supply Applications (Direct Replacement):

The 74FCT16244ATPVG (IDT, Active status) is the primary parametric equivalent, maintaining identical supply voltage (4.5V ~ 5.5V) and output current specifications (32mA/64mA). This part is currently in active production status, ensuring long-term availability and supply chain stability.

The 74FCT162244ATPVG (IDT, Active) and 74FCT162244CTPVG (IDT, Active) provide functional equivalence at 5.5V supply but with reduced output current (24mA/24mA). These are suitable where lower drive capability is acceptable.

The 74FCT162244ATPVG8 (Renesas, Active) offers the same electrical characteristics as the IDT variants with MSL-3 moisture sensitivity rating, appropriate for applications requiring extended moisture exposure protection.

For Lower Voltage Applications (Design Modification Required):

The 74FCT163244APVG, 74FCT163244APVG8, 74FCT163244CPVG, and 74FCT163244CPVG8 operate at 2.7V ~ 3.6V supply voltage with reduced output current (8mA/24mA). These parts are suitable only for applications where the lower supply voltage is compatible with system design requirements.

The SN74LVCZ16244ADLR (Texas Instruments, Active) represents a modern low-voltage CMOS technology alternative with 2.7V ~ 3.6V supply and 24mA output current, suitable for new designs prioritizing lower power consumption and current technology support.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and EAR99 export classification consistent with the original part. Parts with MSL-1 rating (unlimited moisture sensitivity) are preferred for applications with extended storage or high-humidity environments.

Frequently Asked Questions (FAQ)

Q: Can I use a 74FCT163244 series part (3.6V) as a direct replacement for the CY74FCT16244ATPVC (5.5V)?

A: No. The 74FCT163244 series operates at 2.7V ~ 3.6V supply voltage, which is incompatible with 5.5V system designs. Use only if your application can operate at the lower voltage range.

Q: What is the difference between 74FCT162244ATPVG and 74FCT16244ATPVG?

A: Both are 5.5V supply buffers in 48-BSSOP packages. The 74FCT162244ATPVG has reduced output current (24mA/24mA) compared to the 74FCT16244ATPVG (32mA/64mA). Select based on your circuit's current drive requirements.

Q: Are the IDT and Renesas versions of the same part number interchangeable?

A: Yes, when part numbers are identical (e.g., 74FCT162244ATPVG from IDT vs. Renesas). Both manufacturers produce parts to the same electrical and mechanical specifications. Packaging format (Bulk, Tape & Reel, Cut Tape) may differ; verify your procurement requirements.

Q: What does MSL-3 (168 Hours) mean compared to MSL-1?

A: MSL-3 parts have moisture sensitivity requiring baking before reflow if exposed to humidity for more than 168 hours. MSL-1 parts have unlimited moisture sensitivity and require no baking. For long-term storage in humid environments, MSL-1 parts are preferred.

Q: Can I use the SN74LVCZ16244ADLR in a 5.5V system?

A: No. The SN74LVCZ16244ADLR operates at maximum 3.6V supply voltage. It is suitable only for 3.6V or lower systems. Using it in a 5.5V system will damage the device.

Q: Why is the CY74FCT16244ATPVC marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active alternatives such as 74FCT16244ATPVG (IDT) or 74FCT162244ATPVG8 (Renesas) are available for new designs and ongoing production support.

Q: Does package type affect substitution compatibility?

A: Yes. The CY74FCT16244ATPVC uses 48-BSSOP package. Most substitutes also use 48-BSSOP. The 74FCT16244CTPAG8 uses 48-TFSOP (different footprint), requiring PCB layout modification. Verify package compatibility before selection.

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