74FCT162244CTPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162244CTPACT is a non-inverting buffer IC with 4 elements, 4 bits per element, and 3-state output capability in a 48-TSSOP package. Manufactured by Texas Instruments, this component operates at 5.5V supply voltage with 24mA output current capability. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	74FCT162244CTPACT
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	24mA, 24mA
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 for the 74FCT162244CTPACT is determined by the following critical parameters:

Functional Equivalence: Logic type (Buffer, Non-Inverting), number of elements (4), bits per element (4), and output type (3-State) must remain constant.

Electrical Compatibility: Supply voltage range (4.5V ~ 5.5V), output current (24mA, 24mA), and operating temperature range (-40°C ~ 85°C) define the primary substitution class.

Package Compatibility: The 48-TFSOP package footprint (0.240", 6.10mm Width) is the baseline mechanical requirement. Variants using 48-BSSOP (0.295", 7.50mm Width) or 48-SSOP packages represent mechanical alternatives with identical pinout functionality.

Compliance Requirements: RoHS3 compliance and MSL rating (1 - Unlimited) are maintained across all recommended substitutes.

Substitutes are grouped into two categories:

Direct Electrical Equivalents: Parts maintaining identical voltage, current, and temperature specifications with the same 48-TFSOP package.
Parametric Equivalents: Parts with identical electrical specifications but alternative packaging (48-BSSOP or 48-SSOP) or from different manufacturers.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (mA)	Supply Voltage	Temp Range (°C)	Package	Product Status
74FCT162244CTPACT	Texas Instruments	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Obsolete
SN74LVC162244ADGGR	Texas Instruments	Buffer, Non-Inverting	4 / 4	12, 12	1.65V ~ 3.6V	-40 ~ 125	48-TFSOP	Active
74ACT16244DGGR	Texas Instruments	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Active
74FCT162244ATPACT	Cypress Semiconductor Corp	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Active
74FCT162H244ATPACT	Texas Instruments	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Obsolete
CY74FCT162244TPACT	Texas Instruments	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Obsolete
74FCT162244ATPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
74FCT162244ATPVG8	Renesas Electronics Corporation	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
74FCT162244CTPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4 / 4	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
74FCT16244ATPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4 / 4	32, 64	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
74FCT16244CTPAG8	Renesas Electronics Corporation	Buffer, Non-Inverting	4 / 4	32, 64	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Obsolete

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement:

The 74ACT16244DGGR (Texas Instruments, Active status) is the preferred substitute. It maintains identical electrical specifications (24mA output current, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range) and the same 48-TFSOP package footprint. Active product status ensures long-term availability and supply chain stability.

Alternative with Extended Temperature Range:

The SN74LVC162244ADGGR (Texas Instruments, Active status) offers extended operating temperature range (-40°C ~ 125°C) and improved supply voltage flexibility (1.65V ~ 3.6V). However, reduced output current (12mA vs. 24mA) requires circuit-level verification for load compatibility. This part is suitable only when lower output current meets application requirements.

Package-Variant Alternatives:

The 74FCT162244ATPVG, 74FCT162244ATPVG8, and 74FCT162244CTPVG maintain identical electrical specifications but use the 48-BSSOP package (0.295", 7.50mm Width). These are suitable only for designs with PCB layouts accommodating the larger package footprint.

Higher Output Current Variants:

The 74FCT16244ATPVG and 74FCT16244CTPAG8 provide increased output current (32mA high, 64mA low) with identical supply and temperature specifications. These are suitable for applications requiring higher drive capability but require PCB layout verification for the 48-BSSOP package.

Compliance Verification:

All recommended substitutes maintain RoHS3 compliance and REACH unaffected status. MSL ratings vary; verify moisture sensitivity requirements for storage and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC162244ADGGR replace the 74FCT162244CTPACT in all applications?

A: The SN74LVC162244ADGGR is electrically compatible only if the application operates at supply voltages within 1.65V ~ 3.6V and requires output current not exceeding 12mA. The 74FCT162244CTPACT operates at 4.5V ~ 5.5V with 24mA output capability. Direct substitution requires circuit-level analysis to confirm load compatibility and voltage domain compatibility.

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

A: Both packages contain 48 pins with identical pinout functionality. The 48-TFSOP (0.240", 6.10mm Width) is narrower than the 48-BSSOP (0.295", 7.50mm Width). PCB layout and footprint design determine package compatibility. Mechanical substitution is not possible without PCB redesign.

Q: Why are some substitutes listed as Obsolete?

A: Obsolete parts may still be available from inventory but are no longer manufactured. Active status parts are preferred for new designs and long-term supply assurance. Obsolete parts are listed for reference in legacy system support and repair applications.

Q: Can I use 74FCT16244ATPVG instead of 74FCT162244CTPACT?

A: The 74FCT16244ATPVG provides higher output current (32mA high, 64mA low) and uses a different package (48-BSSOP vs. 48-TFSOP). Electrical compatibility is confirmed, but PCB layout redesign is required for the larger package footprint. This substitution is suitable only when increased output current is beneficial and package change is feasible.

Q: Are all substitutes RoHS3 compliant?

A: All listed substitutes maintain RoHS3 compliance status. Verify specific compliance documentation for your supply chain and regulatory requirements.

Q: What does MSL rating mean for component selection?

A: Moisture Sensitivity Level (MSL) indicates storage and handling requirements. MSL 1 (Unlimited) allows indefinite storage without moisture control. Higher MSL ratings require controlled humidity storage and baking procedures before reflow soldering. Verify MSL compatibility with your manufacturing process.

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