74FCT16244CTPVG Equivalent & Substitute Parts

Part Overview

The 74FCT16244CTPVG is a non-inverting buffer logic IC manufactured by Renesas Electronics Corporation, featuring 4 elements with 4 bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
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)
Mounting Type	Surface Mount
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the 74FCT16244CTPVG is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

Logic Type: Buffer, Non-Inverting (must match exactly)
Number of Elements: 4 (must match exactly)
Number of Bits per Element: 4 (must match exactly)
Output Type: 3-State (must match exactly)
Voltage - Supply: 4.5V ~ 5.5V (must match exactly)
Operating Temperature: -40°C ~ 85°C (TA) (must match exactly)
Mounting Type: Surface Mount (must match exactly)
Base Product Number: 74FCT162244 or 74FCT16244 (functional equivalence)

Package Compatibility: Substitutes are grouped into two package categories:

48-BSSOP (0.295", 7.50mm Width) - Direct footprint compatibility with original
48-TFSOP (0.240", 6.10mm Width) - Alternate package with different physical dimensions

Output Current Consideration: The original part specifies 32mA (High) and 64mA (Low) output current. Substitute parts with 24mA (High) and 24mA (Low) output current represent reduced drive capability and must be evaluated for application requirements.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current High/Low (mA)	Supply Voltage	Temp Range	Package	Product Status
74FCT16244CTPVG	Renesas Electronics	Buffer, Non-Inverting	4	4	3-State	32/64	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
74FCT162244ATPACT	Cypress Semiconductor	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active
74FCT162244ATPVCT	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
74FCT162244CTPACT	Cypress Semiconductor	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Active
74FCT162244CTPVCT	Cypress Semiconductor	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active
74FCT162H244ATPACT	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
74FCT162H244CTPVC	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
CY74FCT162244ATPVC	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
CY74FCT162244CTPVC	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
CY74FCT162244TPACT	Texas Instruments	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-TFSOP	Obsolete
CY74FCT162244TPVC	Cypress Semiconductor	Buffer, Non-Inverting	4	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active

Engineering Selection Recommendations

For Direct Footprint Replacement (48-BSSOP Package):

The 74FCT162244CTPVCT (Cypress Semiconductor, Active status) provides the most suitable direct replacement with identical 48-BSSOP packaging. This part maintains ROHS3 compliance and active product status, ensuring long-term availability and supply chain stability.

The 74FCT162244ATPVCT (Texas Instruments, Obsolete status) offers the same 48-BSSOP footprint but carries obsolete status, limiting its suitability for new designs despite current inventory availability.

For Alternate Package Compatibility (48-TFSOP Package):

The 74FCT162244CTPACT (Cypress Semiconductor, Active status) and 74FCT162244ATPACT (Cypress Semiconductor, Active status) provide functional equivalence with the 48-TFSOP package. These parts require PCB layout modification but offer active product status and superior long-term availability.

Output Current Consideration:

All substitute parts listed operate at reduced output current specifications (24mA High/Low) compared to the original 74FCT16244CTPVG (32mA High/64mA Low). Applications requiring the original higher drive capability must evaluate load impedance and signal integrity requirements before substitution.

Compliance and Regulatory Status:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original part's regulatory classification. Moisture sensitivity levels vary between MSL 1 (Unlimited) for most substitutes and MSL 3 (168 Hours) for the original, requiring attention to storage and handling procedures during component procurement and assembly.

Frequently Asked Questions (FAQ)

Q: Can 74FCT162244CTPVCT be used as a direct replacement for 74FCT16244CTPVG?

A: Yes. Both parts share identical electrical specifications (4 elements, 4 bits per element, 3-state output, 4.5V–5.5V supply, -40°C to 85°C operating range) and 48-BSSOP packaging. The primary difference is reduced output current (24mA vs. 32mA/64mA), which must be evaluated for your specific load requirements.

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

A: Both are 48-pin surface mount packages for the 74FCT162244 logic buffer. The 48-BSSOP measures 0.295" (7.50mm) in width, while the 48-TFSOP measures 0.240" (6.10mm) in width. Substitution between these packages requires PCB layout modification and cannot be performed without redesign.

Q: Why do substitute parts show lower output current specifications?

A: The substitute parts (74FCT162244 series) are engineered variants of the original 74FCT16244 series. The reduced output current (24mA High/Low vs. 32mA/64mA) reflects design optimization for lower power consumption while maintaining functional compatibility for standard logic buffer applications. Applications with high-impedance loads or long trace lengths must evaluate whether reduced drive capability affects signal integrity.

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

A: The 74FCT162244CTPVCT (Cypress Semiconductor) and CY74FCT162244TPVC (Cypress Semiconductor) carry Active product status, indicating ongoing manufacturing and supply chain support. Parts marked Obsolete may have limited future availability despite current inventory levels.

Q: Are all substitute parts ROHS3 compliant?

A: The 74FCT162244ATPVCT and 74FCT162244ATPACT explicitly list ROHS3 compliance. The Cypress Semiconductor parts (74FCT162244CTPVCT, 74FCT162244CTPACT, CY74FCT162244TPVC) do not specify RoHS status in the provided data. Verify RoHS compliance requirements with your procurement specifications before final selection.

Q: What is the moisture sensitivity level difference between the original and substitutes?

A: The original 74FCT16244CTPVG specifies MSL 3 (168 Hours), requiring controlled storage conditions. Most substitute parts specify MSL 1 (Unlimited), indicating superior moisture resistance and more flexible storage requirements. This represents an improvement in component handling and shelf-life management.

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