PI74FCT162244ATV Equivalent & Substitute Parts

Part Overview

The PI74FCT162244ATV is a non-inverting buffer logic IC manufactured by Diodes Incorporated, featuring 4 elements with 4 bits per element and 3-state output capability. Designed for 4.5V to 5.5V supply operation, this 48-SSOP package component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, identifying functionally equivalent substitute parts is essential for design continuity and procurement flexibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI74FCT162244ATV
Manufacturer	Diodes Incorporated
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-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PI74FCT162244ATV are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Logic Configuration: Buffer, Non-Inverting with 4 elements and 4 bits per element
Output Capability: 3-State output
Electrical Specifications: 4.5V to 5.5V supply voltage, 24mA output current (high and low)
Operating Temperature Range: -40°C to 85°C
Package Compatibility: 48-SSOP or 48-TSSOP surface mount packages

Substitutes are classified into two categories:

Category A - Direct Package Match (48-BSSOP/48-SSOP): Parts maintaining identical package dimensions and pin configuration, enabling direct PCB replacement without layout modification.

Category B - Compatible Package Variant (48-TFSOP/48-TSSOP): Parts with equivalent electrical specifications but different package footprint (0.240" width versus 0.295" width), requiring PCB layout adjustment.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (mA)	Supply Voltage	Temp Range	Package	Product Status	RoHS Status
PI74FCT162244ATV	Diodes Inc.	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-BSSOP	Obsolete	Non-compliant
74FCT162244ATPVCT	Texas Instruments	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-BSSOP	Obsolete	ROHS3 Compliant
74FCT162244ATPVG8	Renesas Electronics	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	ROHS3 Compliant
74FCT162244ATPACT	Cypress Semiconductor	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-TFSOP	Active	Not specified
74FCT162244CTPACT	Cypress Semiconductor	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-TFSOP	Active	Not specified
74FCT162244CTPVCT	Cypress Semiconductor	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified
74FCT16244ATPVG	IDT	Buffer, Non-Inv	4 / 4	32, 64	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified
74FCT16244CTPAG8	Renesas Electronics	Buffer, Non-Inv	4 / 4	32, 64	4.5-5.5V	-40 to 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
74FCT162H244ATPACT	Texas Instruments	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
CY74FCT162244TPACT	Texas Instruments	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-TFSOP	Obsolete	ROHS3 Compliant
CY74FCT162244TPVCT	Cypress Semiconductor	Buffer, Non-Inv	4 / 4	24, 24	4.5-5.5V	-40 to 85°C	48-BSSOP	Active	Not specified

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Changes Required)

Select from parts maintaining the 48-BSSOP package: 74FCT162244ATPVCT (Texas Instruments), 74FCT162244ATPVG8 (Renesas Electronics), 74FCT162244CTPVCT (Cypress Semiconductor), or CY74FCT162244TPVCT (Cypress Semiconductor). Among these, 74FCT162244ATPVG8 and 74FCT162244CTPVCT offer active product status with ROHS3 compliance or equivalent certifications, ensuring long-term availability and regulatory alignment.

For Applications Permitting Package Footprint Change

The 48-TFSOP/48-TSSOP variants (74FCT162244ATPACT, 74FCT162244CTPACT, 74FCT162H244ATPACT, CY74FCT162244TPACT) provide active product status from Cypress Semiconductor and Texas Instruments. These parts maintain identical electrical specifications while offering reduced package width (0.240" versus 0.295"), suitable for space-constrained designs.

Output Current Consideration

Parts designated as 74FCT16244 variants (74FCT16244ATPVG, 74FCT16244CTPAG8) feature elevated output current specifications (32mA high, 64mA low) compared to the original 24mA specification. These are suitable only for applications requiring higher drive capability and must be evaluated for thermal and power distribution implications.

Compliance and Availability

For new designs or long-term production requirements, prioritize active-status parts with ROHS3 compliance. Renesas Electronics 74FCT162244ATPVG8 and Cypress Semiconductor 74FCT162244CTPVCT offer optimal availability and regulatory compliance profiles.

Frequently Asked Questions (FAQ)

Q: Can I use 74FCT16244 variants as direct substitutes for PI74FCT162244ATV?

A: 74FCT16244 parts are electrically compatible but feature higher output current specifications (32mA/64mA versus 24mA/24mA). They are suitable only if your circuit design accommodates the increased drive capability. Verify thermal performance and power distribution before implementation.

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

A: Both are 48-pin surface mount packages with identical pin counts and electrical compatibility. The primary difference is package width: 48-BSSOP measures 0.295" (7.50mm) while 48-TFSOP measures 0.240" (6.10mm). Direct PCB replacement requires matching package type; footprint changes are necessary when switching between them.

Q: Are obsolete-status parts suitable for new production designs?

A: Obsolete parts carry supply chain risk and may become unavailable. For new designs, select active-status alternatives such as 74FCT162244ATPVG8 (Renesas) or 74FCT162244CTPVCT (Cypress) to ensure long-term component availability and manufacturing continuity.

Q: What does ROHS3 compliance mean for this component?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This certification is required for many industrial and consumer applications and supports regulatory compliance in global markets.

Q: Can I substitute a part with different RoHS status?

A: RoHS compliance status affects regulatory acceptability and supply chain eligibility. Substituting a non-compliant part with a ROHS3-compliant alternative is generally acceptable for new designs. Reverse substitution (compliant to non-compliant) may violate procurement specifications and regulatory requirements depending on application context.

Q: Which substitute offers the best long-term availability?

A: 74FCT162244ATPVG8 (Renesas Electronics) and 74FCT162244CTPVCT (Cypress Semiconductor) both maintain active product status with substantial inventory levels (1140 and 2311 units respectively) and ROHS3 compliance, providing optimal long-term supply security.

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