CY74FCT16244CTPACT Equivalent & Substitute Parts

Part Overview

The CY74FCT16244CTPACT is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 4 elements with 4 bits per element and 3-state output capability. Housed in a 48-TSSOP package, this component operates across a 4.5V to 5.5V supply voltage range with output drive capabilities of 32mA (high) and 64mA (low). The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CY74FCT16244CTPACT
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-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CY74FCT16244CTPACT are categorized based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Operating Temperature Range: -40°C ~ 85°C (TA)
Package / Case: 48-TFSOP or equivalent 48-pin surface mount
Mounting Type: Surface Mount

Substitution Categories:

Category 1: Parametric Equivalents (Identical Electrical Specifications) Parts matching all electrical parameters including voltage supply range (4.5V ~ 5.5V), output current (32mA / 64mA), and functional configuration. These include CY74FCT16244ATPACT, CY74FCT16244TPACT, SN74ABT16244ADGGR, SN74ABTH16244DGGR, and SN74ABT16241ADGGR.

Category 2: Manufacturer Recommended Alternatives (Modified Electrical Specifications) Parts with different voltage supply ranges or output current ratings but maintaining the same logic function, element count, and package footprint. SN74LVCZ16244ADGGR operates at 2.7V ~ 3.6V with reduced output current (24mA / 24mA). The 74FCT162244 series variants operate at 4.5V ~ 5.5V but with 24mA / 24mA output current and different package dimensions (48-BSSOP vs. 48-TFSOP).

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements / Bits	Output Type	Voltage Supply	Output Current (H/L)	Package	Product Status
CY74FCT16244CTPACT	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Obsolete
CY74FCT16244ATPACT	Cypress Semiconductor Corp	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Active
CY74FCT16244TPACT	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Obsolete
SN74ABT16244ADGGR	Texas Instruments	74ABT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Active
SN74ABTH16244DGGR	Texas Instruments	74ABTH	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Active
SN74ABT16241ADGGR	Texas Instruments	74ABT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-TFSOP	Active
SN74LVCZ16244ADGGR	Texas Instruments	74LVCZ	Buffer, Non-Inverting	4 / 4	3-State	2.7V ~ 3.6V	24mA / 24mA	48-TFSOP	Active
74FCT162244ATPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active
74FCT162244ATPVG8	Renesas Electronics Corporation	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active
74FCT162244CTPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	24mA / 24mA	48-BSSOP	Active
74FCT16244ATPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	3-State	4.5V ~ 5.5V	32mA / 64mA	48-BSSOP	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (48-TFSOP Package):

Select CY74FCT16244ATPACT or SN74ABT16244ADGGR for applications requiring identical electrical performance and package footprint. Both parts are active products with ROHS3 compliance and MSL-1 moisture sensitivity rating, ensuring long-term availability and handling compatibility with the original CY74FCT16244CTPACT.

For Reduced Supply Voltage Applications (2.7V ~ 3.6V):

SN74LVCZ16244ADGGR provides functional equivalence with lower voltage operation and reduced output current (24mA / 24mA). This part is suitable for systems operating at 3.3V or lower, though output drive capability is reduced compared to the original specification.

For Alternative Package Formats (48-BSSOP):

74FCT162244ATPVG, 74FCT162244ATPVG8, 74FCT162244CTPVG, and 74FCT16244ATPVG maintain electrical compatibility with the original part but use a 48-BSSOP package (0.295", 7.50mm width) instead of 48-TFSOP. These parts are suitable for designs where PCB layout accommodates the wider package footprint. Output current specifications vary: 74FCT162244 variants provide 24mA / 24mA, while 74FCT16244ATPVG provides 32mA / 64mA matching the original.

Compliance and Availability:

All recommended substitutes maintain ROHS3 compliance and EAR99 export classification. Active product status ensures continued availability for procurement and technical support. Inventory levels range from 1,140 to 4,078 units across recommended alternatives.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCZ16244ADGGR replace CY74FCT16244CTPACT in a 5V system?

A: No. SN74LVCZ16244ADGGR operates at 2.7V ~ 3.6V supply voltage, making it incompatible with 5V systems. Use SN74ABT16244ADGGR or CY74FCT16244ATPACT for 5V applications.

Q: What is the difference between 48-TFSOP and 48-BSSOP packages?

A: 48-TFSOP has a width of 0.240" (6.10mm), while 48-BSSOP has a width of 0.295" (7.50mm). Both are 48-pin surface mount packages with different footprints. PCB layout and routing must accommodate the selected package type.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts listed carry ROHS3 compliance certification, matching the environmental compliance of the original CY74FCT16244CTPACT.

Q: Why do some alternatives have lower output current (24mA / 24mA) versus the original (32mA / 64mA)?

A: Different logic families (74FCT162244 vs. 74FCT16244) have different output drive specifications. Applications requiring the full 32mA / 64mA output current must select parts explicitly rated for these levels, such as SN74ABT16244ADGGR or 74FCT16244ATPVG.

Q: Is CY74FCT16244TPACT a suitable replacement?

A: CY74FCT16244TPACT is a parametric equivalent with identical electrical specifications and package format. However, it is classified as obsolete. For new designs and long-term availability, CY74FCT16244ATPACT or SN74ABT16244ADGGR are preferred active alternatives.

Q: What is the moisture sensitivity level (MSL) for these parts?

A: Most recommended substitutes carry MSL-1 (Unlimited) rating, identical to the original part. SN74LVCZ16244ADGGR variants and 74FCT162244ATPVG8 carry MSL-3 (168 Hours), requiring controlled storage and handling procedures.

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