74LVC2244APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC2244APW,112 is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., featuring 2 elements with 4 bits per element and 3-state output capability. This component operates across a supply voltage range of 1.2V to 3.6V and is housed in a 20-TSSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	12mA, 12mA
Voltage - Supply	1.2V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC2244APW,112 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

Logic type: Buffer, Non-Inverting
Number of elements: 2
Number of bits per element: 4
Output type: 3-State
Package type: 20-TSSOP or compatible package
Supply voltage range: Must encompass or exceed 1.2V ~ 3.6V
Output current capability: Minimum 12mA per output
Operating temperature range: Must support -40°C ~ 125°C or equivalent industrial range

Substitute parts are grouped into two categories based on package compatibility and electrical specifications:

Category A - Direct Package Match (20-TSSOP): Parts maintaining identical 20-TSSOP packaging with equivalent or superior electrical performance across the required voltage and temperature ranges.

Category B - Alternative Package (20-SSOP, 20-TVSOP): Parts with identical functional specifications but different surface-mount packages, requiring PCB layout verification before substitution.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Type	Current (mA)	Supply Voltage	Temp Range (°C)	Package	Status
74LVC2244APW,112	Nexperia USA Inc.	Buffer, Non-Inverting	2 / 4	3-State	12, 12	1.2V ~ 3.6V	-40 ~ 125	20-TSSOP	Obsolete
74LCX2244MTCX	Fairchild Semiconductor	Buffer, Non-Inverting	2 / 4	3-State	12, 12	2V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
74LCX244MTC	onsemi	Buffer, Non-Inverting	2 / 4	3-State	24, 24	2V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
74LCX244MTCX	onsemi	Buffer, Non-Inverting	2 / 4	3-State	24, 24	2V ~ 3.6V	-40 ~ 85	20-TSSOP	Active
CLVC244AQPWRG4Q1	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40 ~ 125	20-TSSOP	Active
MC74LCX244DTG	onsemi	Buffer, Non-Inverting	2 / 4	3-State	24, 24	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
MC74LCX244DTR2G	onsemi	Buffer, Non-Inverting	2 / 4	3-State	24, 24	2V ~ 5.5V	-55 ~ 125	20-TSSOP	Active
SN74LVC2244ADBQR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	12, 12	1.65V ~ 3.6V	-40 ~ 85	20-SSOP	Active
SN74LVC2244ADBR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	12, 12	1.65V ~ 3.6V	-40 ~ 85	20-SSOP	Active
SN74LVC2244ADGVR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	12, 12	1.65V ~ 3.6V	-40 ~ 85	20-TVSOP	Active
SN74LVC2244APW	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	12, 12	1.65V ~ 3.6V	-40 ~ 85	20-TSSOP	Active

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement (20-TSSOP Package):

The SN74LVC2244APW from Texas Instruments provides the closest functional match with active product status. This part maintains identical output current specifications (12mA), 20-TSSOP packaging, and ROHS3 compliance. The supply voltage range of 1.65V ~ 3.6V encompasses the original specification, and the operating temperature range of -40°C ~ 85°C covers standard industrial applications. This part is recommended for designs where the lower temperature limit of 85°C is acceptable.

For applications requiring the full -40°C ~ 125°C operating range, the CLVC244AQPWRG4Q1 from Texas Instruments is qualified to AEC-Q100 automotive standards and maintains 20-TSSOP packaging with enhanced output current (24mA) and supply voltage range of 1.65V ~ 3.6V.

Alternative Options - Enhanced Performance (20-TSSOP Package):

The MC74LCX244DTG and MC74LCX244DTR2G from onsemi offer extended supply voltage capability (2V ~ 5.5V) and wider operating temperature range (-55°C ~ 125°C), with increased output current (24mA). These parts are suitable for applications requiring broader environmental tolerance.

Package Alternatives (Non-TSSOP):

The SN74LVC2244ADBR and SN74LVC2244ADBQR from Texas Instruments provide equivalent electrical specifications in 20-SSOP packaging. The SN74LVC2244ADGVR offers the same functionality in 20-TVSOP packaging. These alternatives require PCB layout modification and are suitable only when package footprint constraints necessitate alternative surface-mount formats.

Frequently Asked Questions (FAQ)

Q: Can the 74LCX244MTC or 74LCX244MTCX substitute for the 74LVC2244APW,112?

A: Yes, with design verification. Both parts maintain identical logic configuration (2 elements, 4 bits per element, 3-state output) and 20-TSSOP packaging. However, the minimum supply voltage is 2V versus the original 1.2V specification, and the maximum operating temperature is 85°C versus 125°C. Verify that your application does not require operation below 2V or above 85°C.

Q: What is the difference between the TSSOP, SSOP, and TVSOP packages?

A: All three are surface-mount packages with 20 pins. TSSOP (Thin Shrink Small Outline Package) and TVSOP (Thin Very Small Outline Package) have similar dimensions (0.173" width, 4.40mm). SSOP (Shrink Small Outline Package) has a larger width (0.209", 5.30mm). Package selection depends on PCB layout constraints. Direct footprint compatibility exists only between TSSOP and TVSOP variants.

Q: Is the CLVC244AQPWRG4Q1 suitable for automotive applications?

A: Yes. The CLVC244AQPWRG4Q1 carries AEC-Q100 automotive qualification and is rated for -40°C ~ 125°C operation. This part is appropriate for automotive and extended-temperature industrial applications.

Q: What is the minimum supply voltage difference between substitute parts?

A: The original 74LVC2244APW,112 operates from 1.2V minimum. Most active substitutes (74LCX series) require 2V minimum, while Texas Instruments alternatives (SN74LVC and CLVC series) operate from 1.65V minimum. Verify your circuit's minimum supply voltage before selection.

Q: Can I use parts with higher output current (24mA) as direct replacements?

A: Yes. Higher output current capability is a superset of the original 12mA specification and provides improved drive capability without functional incompatibility. No circuit modification is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original part's environmental compliance status.

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