CY74FCT16244TPACT Equivalent & Substitute Parts

Part Overview

The CY74FCT16244TPACT is a non-inverting buffer logic integrated circuit 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	CY74FCT16244TPACT
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)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CY74FCT16244TPACT is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Logic type: Buffer, Non-Inverting
Number of elements: 4
Number of bits per element: 4
Output type: 3-State
Package type: 48-TFSOP or compatible 48-pin SSOP variants
Operating temperature range: -40°C ~ 85°C (TA)
Supply voltage compatibility: 4.5V ~ 5.5V or subset thereof

Substitution Categories:

Category 1 - Parametric Equivalents (Identical Electrical Specifications): Parts maintaining identical output drive current (32mA/64mA), supply voltage range (4.5V ~ 5.5V), and package footprint. These provide direct functional replacement with no design modification required.

Category 2 - Manufacturer Recommended Substitutes (Reduced Output Drive Current): Parts with reduced output drive specifications (24mA/24mA) but identical logic function, package footprint, and operating temperature range. These require verification of load drive capability in the target application.

Category 3 - Voltage-Reduced Alternatives (Lower Supply Voltage Range): Parts operating at reduced supply voltage (2.7V ~ 3.6V) with identical logic function and package footprint. These are suitable only for applications designed for lower voltage operation.

Category 4 - Package Variant Alternatives (48-BSSOP): Parts with identical electrical specifications but housed in 48-BSSOP package (0.295", 7.50mm Width) instead of 48-TFSOP. These require PCB footprint verification before implementation.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements / Bits	Output Current (H/L)	Supply Voltage	Package	Product Status	Inventory
CY74FCT16244TPACT	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Obsolete	2052 Pcs
SN74LVCZ16244ADGGR	Texas Instruments	74LVCZ	Buffer, Non-Inverting	4 / 4	24mA / 24mA	2.7V ~ 3.6V	48-TFSOP	Active	37228 Pcs
CY74FCT16244ATPACT	Cypress Semiconductor Corp	74FCT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Active	2700 Pcs
CY74FCT16244CTPACT	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Obsolete	798 Pcs
SN74ABT16241ADGGR	Texas Instruments	74ABT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Active	2100 Pcs
SN74ABT16244ADGGR	Texas Instruments	74ABT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Active	2527 Pcs
SN74ABTH16244DGGR	Texas Instruments	74ABTH	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-TFSOP	Active	3300 Pcs
74FCT162244ATPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	24mA / 24mA	4.5V ~ 5.5V	48-BSSOP	Active	4078 Pcs
74FCT162244ATPVG8	Renesas Electronics Corporation	74FCT	Buffer, Non-Inverting	4 / 4	24mA / 24mA	4.5V ~ 5.5V	48-BSSOP	Active	1140 Pcs
74FCT162244CTPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	24mA / 24mA	4.5V ~ 5.5V	48-BSSOP	Active	1661 Pcs
74FCT16244ATPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	48-BSSOP	Active	2400 Pcs

Engineering Selection Recommendations

For Direct Replacement (No Design Modification):

CY74FCT16244ATPACT (Cypress Semiconductor Corp) and SN74ABT16244ADGGR (Texas Instruments) provide parametric equivalence with identical output drive current (32mA/64mA), supply voltage range (4.5V ~ 5.5V), and 48-TFSOP package footprint. Both parts are active products with ROHS3 compliance and MSL-1 rating. CY74FCT16244ATPACT maintains the 74FCT series designation, while SN74ABT16244ADGGR operates within the 74ABT logic family. Both support the full -40°C to 85°C operating temperature range.

For Applications with Reduced Output Drive Requirements:

74FCT162244ATPVG (IDT) and 74FCT162244CTPVG (IDT) deliver reduced output drive current (24mA/24mA) while maintaining 4.5V ~ 5.5V supply voltage compatibility and -40°C to 85°C operating temperature. These parts are housed in 48-BSSOP package format. Selection requires confirmation that application load impedance does not exceed the reduced drive capability.

For Lower Voltage Applications:

SN74LVCZ16244ADGGR (Texas Instruments) operates at reduced supply voltage (2.7V ~ 3.6V) with 24mA/24mA output drive in 48-TFSOP package. This part is suitable only for designs specified for 3.3V or lower supply operation and is not compatible with 5V systems.

Product Status Considerations:

The original CY74FCT16244TPACT is classified as obsolete. Active alternatives ensure long-term availability and supply chain continuity. SN74ABT16244ADGGR, SN74ABTH16244DGGR, and CY74FCT16244ATPACT represent the highest inventory availability among parametric equivalents.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCZ16244ADGGR replace CY74FCT16244TPACT in a 5V system?

A: No. SN74LVCZ16244ADGGR operates at 2.7V ~ 3.6V supply voltage and is not compatible with 4.5V ~ 5.5V systems. This part is suitable only for 3.3V applications.

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

A: 48-TFSOP measures 0.240" (6.10mm) width, while 48-BSSOP measures 0.295" (7.50mm) width. These are different physical footprints requiring separate PCB layout designs. Parts in 48-BSSOP package (74FCT162244ATPVG, 74FCT162244ATPVG8, 74FCT162244CTPVG, 74FCT16244ATPVG) cannot be directly substituted into 48-TFSOP sockets without PCB redesign.

Q: Are 74FCT162244 and 74FCT16244 variants interchangeable?

A: No. 74FCT162244 variants feature reduced output drive current (24mA/24mA), while 74FCT16244 variants maintain full drive current (32mA/64mA). Selection depends on application load requirements.

Q: Which substitute offers the best inventory availability?

A: SN74LVCZ16244ADGGR maintains the highest inventory level at 37,228 pieces. However, this part operates at reduced voltage (2.7V ~ 3.6V) and is suitable only for 3.3V applications. For 5V system replacement, SN74ABTH16244DGGR offers 3,300 pieces with full parametric equivalence.

Q: Do all substitute parts maintain ROHS3 compliance?

A: ROHS3 compliance is confirmed for CY74FCT16244ATPACT, CY74FCT16244CTPACT, SN74ABT16241ADGGR, SN74ABT16244ADGGR, and SN74ABTH16244DGGR. Compliance status for 74FCT162244ATPVG8 is confirmed; compliance for 74FCT162244ATPVG and 74FCT162244CTPVG is not specified in provided data.

Q: What is the Moisture Sensitivity Level (MSL) for substitute parts?

A: CY74FCT16244ATPACT, CY74FCT16244CTPACT, SN74ABT16241ADGGR, SN74ABT16244ADGGR, and SN74ABTH16244DGGR maintain MSL-1 (Unlimited). 74FCT162244ATPVG8 is rated MSL-3 (168 Hours). MSL ratings for IDT parts are not specified in provided data.

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