74FCT162H244ATPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162H244ATPACT is a Buffer, Non-Inverting logic IC with 4 elements and 4 bits per element, featuring 3-state output capability in a 48-TSSOP package. This component is classified as obsolete by Texas Instruments. Due to its obsolete status, identifying functionally equivalent and parametrically compatible substitute parts is essential for design continuity, procurement flexibility, and long-term system reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	74FCT162H244ATPACT
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)
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 74FCT162H244ATPACT are categorized based on the following critical parameters that determine functional and electrical compatibility:

Primary Substitution Criteria:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Voltage Supply Range: 4.5V ~ 5.5V
Current Output Capability: 24mA (High and Low)
Operating Temperature Range: -40°C ~ 85°C
Package Type: 48-TFSOP or equivalent 48-pin surface mount packages
Mounting Type: Surface Mount

Substitution Categories:

Category 1: Manufacturer Recommended - Direct Electrical Equivalent (Active Status) Parts that maintain identical electrical specifications and active product status, offering the most reliable long-term availability.

Category 2: Parametric Equivalent - Same Electrical Performance (Active Status) Parts with matching core electrical parameters but potentially different packaging or manufacturer sourcing, suitable for designs with flexible packaging requirements.

Category 3: Parametric Equivalent - Enhanced Performance (Active Status) Parts with higher output current capability or alternative package options that maintain backward compatibility while offering additional design flexibility.

Category 4: Manufacturer Recommended - Lower Voltage Alternative (Active Status) The SN74LVC162244ADGGR operates at reduced voltage (1.65V ~ 3.6V) with lower output current (12mA), suitable for low-power applications requiring voltage compatibility verification.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Voltage (V)	Temp Range (°C)	Package	Status
74FCT162H244ATPACT	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-TFSOP	Obsolete
SN74LVC162244ADGGR	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	12/12	1.65-3.6	-40 to 125	48-TFSOP	Active
74ACT16244DGGR	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-TFSOP	Active
74FCT162244ATPACT	Cypress Semiconductor Corp	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-TFSOP	Active
74FCT162244CTPACT	Cypress Semiconductor Corp	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-TFSOP	Active
CY74FCT162244TPACT	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-TFSOP	Obsolete
74FCT162244ATPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-BSSOP	Active
74FCT162244ATPVG8	Renesas Electronics Corporation	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-BSSOP	Active
74FCT162244CTPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4	4	3-State	24/24	4.5-5.5	-40 to 85	48-BSSOP	Active
74FCT16244ATPVG	IDT, Integrated Device Technology Inc	Buffer, Non-Inverting	4	4	3-State	32/64	4.5-5.5	-40 to 85	48-BSSOP	Active
74FCT16244CTPAG8	Renesas Electronics Corporation	Buffer, Non-Inverting	4	4	3-State	32/64	4.5-5.5	-40 to 85	48-TFSOP	Obsolete

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance, Active Status):

Select 74ACT16244DGGR (Texas Instruments) or 74FCT162244ATPACT (Cypress Semiconductor Corp) or 74FCT162244CTPACT (Cypress Semiconductor Corp) when exact electrical specifications and 48-TFSOP packaging are required. These parts maintain 24mA output current, 4.5V-5.5V supply voltage, and -40°C to 85°C operating range with active product status and ROHS3 compliance.

For Alternative Packaging (Same Electrical Performance, Active Status):

Select 74FCT162244ATPVG (IDT) or 74FCT162244CTPVG (IDT) or 74FCT162244ATPVG8 (Renesas) when 48-BSSOP packaging is acceptable. These maintain identical electrical specifications with active product status.

For Enhanced Output Current Capability (Active Status):

Select 74FCT16244ATPVG (IDT) when higher output current (32mA high, 64mA low) is beneficial. This part maintains the same logic configuration and voltage range with 48-BSSOP packaging and active status.

For Low-Voltage Applications (Active Status, Extended Temperature Range):

Select SN74LVC162244ADGGR (Texas Instruments) only when the design operates at 1.65V-3.6V supply voltage. This part offers extended operating temperature range (-40°C to 125°C) and lower output current (12mA), with active product status and ROHS3 compliance.

Avoid:

CY74FCT162244TPACT and 74FCT16244CTPAG8 are obsolete and should not be selected for new designs despite parametric equivalence.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC162244ADGGR as a direct replacement for 74FCT162H244ATPACT?

A: No. The SN74LVC162244ADGGR operates at 1.65V-3.6V supply voltage, while the 74FCT162H244ATPACT requires 4.5V-5.5V. Output current is also reduced (12mA vs. 24mA). Use this part only if your circuit design supports low-voltage operation.

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

A: Both are 48-pin surface mount packages. 48-TFSOP has a width of 0.240" (6.10mm), while 48-BSSOP has a width of 0.295" (7.50mm). PCB layout and footprint compatibility must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts listed are ROHS3 compliant. Verify compliance documentation for specific part numbers and manufacturers when regulatory requirements apply.

Q: Can I use 74FCT16244ATPVG instead of 74FCT162244ATPACT?

A: Yes, with consideration. The 74FCT16244ATPVG has higher output current (32mA high, 64mA low) and uses 48-BSSOP packaging instead of 48-TFSOP. Electrical compatibility is maintained, but PCB footprint must be verified.

Q: Why is the 74FCT162H244ATPACT obsolete?

A: The part is classified as obsolete by Texas Instruments. Multiple active alternatives with identical or superior specifications are available from multiple manufacturers, providing better long-term supply security.

Q: What certifications should I verify for my application?

A: Verify ROHS3 compliance, REACH status, and Moisture Sensitivity Level (MSL) requirements. All listed parts are ROHS3 compliant and REACH unaffected. MSL ratings vary; confirm compatibility with your assembly process requirements.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All substitute parts maintain identical logic specifications, voltage ranges, and operating temperatures. Verify that your procurement and quality assurance processes support multiple manufacturer sources.

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