74ACT16244DL Equivalent & Substitute Parts

Part Overview

The 74ACT16244DL is a 16-bit buffer with non-inverting logic, featuring 4 elements with 4 bits per element and 3-state output capability. Manufactured by Texas Instruments in a 48-SSOP surface mount package, this component operates across a 4.5V to 5.5V supply voltage range with ±24mA output current capability. The part is classified as Last Time Buy, indicating discontinued production. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

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	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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74ACT16244DL is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Output Current Capability: 24mA, 24mA
Supply Voltage Range: 4.5V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Package / Case: 48-BSSOP (0.295", 7.50mm Width)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories: manufacturer-recommended direct substitutes (same base product number from the original manufacturer) and parametric equivalents (functionally identical parts from alternative manufacturers or product series). All listed substitutes maintain identical electrical specifications and physical packaging, ensuring pin-for-pin and functional compatibility.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements / Bits	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	Inventory
74ACT16244DL	Texas Instruments	74ACT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Last Time Buy	1255 Pcs
74ACT16244DLR	Texas Instruments	74ACT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	15782 Pcs
CY74FCT162244TPVC	Cypress Semiconductor Corp	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	1806 Pcs
74FCT162244ATPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	4078 Pcs
74FCT162244CTPVG	IDT, Integrated Device Technology Inc	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	1661 Pcs
74FCT162H244CTPVC	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete	2060 Pcs
CY74FCT162244ATPVC	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete	1528 Pcs
CY74FCT162244CTPVC	Texas Instruments	74FCT	Buffer, Non-Inverting	4 / 4	3-State	24, 24	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete	1596 Pcs

Engineering Selection Recommendations

For new production designs, 74ACT16244DLR is the primary recommended substitute. This part maintains the same base product number (74ACT16244) and is manufactured by Texas Instruments with Active product status, ensuring long-term availability and supply chain stability. The DLR variant differs only in packaging format (Cut Tape & Digi-Reel versus Tube), with significantly higher inventory (15782 Pcs) supporting volume requirements.

For designs requiring cross-manufacturer alternatives, the 74FCT series parts from IDT (74FCT162244ATPVG and 74FCT162244CTPVG) provide parametric equivalence with Active product status. These parts maintain identical electrical specifications and 48-BSSOP packaging while offering independent supply sources.

Parts with Obsolete status (74FCT162H244CTPVC, CY74FCT162244ATPVC, CY74FCT162244CTPVC) are suitable only for legacy system maintenance or repair applications where existing inventory is available. These parts should not be selected for new production due to discontinued manufacturing status.

All substitute parts listed maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can 74ACT16244DLR be used as a direct replacement for 74ACT16244DL?

A: Yes. Both parts share the same base product number (74ACT16244) and are manufactured by Texas Instruments. The DLR variant uses Cut Tape & Digi-Reel packaging instead of Tube packaging. Electrical specifications, pin configuration, and functional performance are identical. The only consideration is packaging format compatibility with your assembly process.

Q: What is the difference between 74ACT and 74FCT series buffers?

A: Both series provide identical logic functionality, output current capability (24mA), supply voltage range (4.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). The primary difference is manufacturer and product line designation. 74ACT is Texas Instruments' Advanced CMOS Technology series, while 74FCT is the Fast CMOS Technology series. Functionally, they are interchangeable for this application.

Q: Are IDT 74FCT162244 parts suitable for new production?

A: Yes. IDT parts 74FCT162244ATPVG and 74FCT162244CTPVG both carry Active product status with adequate inventory (4078 Pcs and 1661 Pcs respectively). These provide parametric equivalence with identical electrical and mechanical specifications. They are suitable for new production designs requiring cross-manufacturer sourcing or supply chain diversification.

Q: Why should I avoid Obsolete status parts?

A: Obsolete parts (74FCT162H244CTPVC, CY74FCT162244ATPVC, CY74FCT162244CTPVC) have discontinued manufacturing. While current inventory exists, future availability cannot be guaranteed. These parts are appropriate only for legacy system repairs or maintenance where existing stock is available. New production designs should use Active status parts to ensure long-term supply continuity.

Q: Does the 48-BSSOP package differ between manufacturers?

A: No. The 48-BSSOP package specification (0.295", 7.50mm Width) is standardized across all listed parts. All substitute parts are pin-for-pin compatible and physically interchangeable on PCBs designed for the 74ACT16244DL.

Q: Are all listed parts RoHS3 compliant?

A: All parts listed maintain RoHS3 compliance and MSL Level 1 rating. This ensures compatibility with modern manufacturing processes and environmental regulations across all substitute options.

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