74ALVC244PW,112 Equivalent & Substitute Parts

Part Overview

The 74ALVC244PW,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 device operates across a supply voltage range of 1.65V 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
Manufacturer Part Number	74ALVC244PW,112
Manufacturer	Nexperia USA Inc.
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74ALVC244PW,112 is determined by the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 4
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 1.65V ~ 3.6V
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 20-TSSOP or compatible package footprint

Substitute parts are grouped into two categories: direct functional equivalents with identical electrical specifications and packaging, and parametric equivalents that maintain core functionality within the same voltage and temperature operating ranges. Package variations (20-TSSOP versus 20-TVSOP) are noted where applicable, as they affect PCB layout compatibility.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status
74ALVC244PW,112	Nexperia USA Inc.	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Obsolete
SN74ALVC244DGVR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TVSOP	Active
SN74ALVC244IPWREP	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74ALVC244PWR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74ALVCH244DGVR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TVSOP	Active
SN74ALVCH244PWR	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
TC74VCX244FTEL	Toshiba Semiconductor and Storage	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Not For New Designs
SN74ALVC244PW	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74ALVCH244PW	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74LVCH244APW	Texas Instruments	Buffer, Non-Inverting	2 / 4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active

Engineering Selection Recommendations

For replacement of the obsolete 74ALVC244PW,112, the following active alternatives are recommended based on product status and compliance certifications:

Primary Recommendations (Identical Package - 20-TSSOP):

SN74ALVC244PWR and SN74ALVC244IPWREP (Texas Instruments) are direct functional equivalents with identical electrical specifications and 20-TSSOP packaging. Both parts are active products with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

SN74ALVCH244PWR (Texas Instruments) provides equivalent functionality within the 74ALVCH series, maintaining all critical electrical parameters and 20-TSSOP packaging. This part is active and ROHS3 compliant.

SN74ALVC244PW and SN74ALVCH244PW (Texas Instruments) are parametric equivalents available in tube packaging, suitable for applications where reel packaging is not required.

Secondary Recommendation (Package Variant - 20-TVSOP):

SN74ALVC244DGVR and SN74ALVCH244DGVR (Texas Instruments) maintain identical electrical specifications but use 20-TVSOP packaging. These parts are active and ROHS3 compliant. PCB layout modification is required due to package footprint differences.

Not Recommended for New Designs:

TC74VCX244FTEL (Toshiba) is classified as "Not For New Designs" and should be avoided for new applications despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC244DGVR be used as a direct replacement for 74ALVC244PW,112?

A: SN74ALVC244DGVR is electrically equivalent but uses 20-TVSOP packaging instead of 20-TSSOP. While the electrical specifications are identical, the package footprint differs, requiring PCB layout modification. If the PCB is already designed for 20-TSSOP, use SN74ALVC244PWR or SN74ALVC244IPWREP instead.

Q: What is the difference between the 74ALVC and 74ALVCH series?

A: Both series maintain identical logic type, element count, bit configuration, output type, current ratings, supply voltage range, and operating temperature. The primary distinction is series designation; both are functionally interchangeable for this buffer application.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended active substitutes (SN74ALVC244PWR, SN74ALVC244IPWREP, SN74ALVCH244PWR, SN74ALVC244PW, SN74ALVCH244PW, SN74LVCH244APW, SN74ALVC244DGVR, and SN74ALVCH244DGVR) are ROHS3 compliant. TC74VCX244FTEL is RoHS compliant but not ROHS3 compliant and is not recommended for new designs.

Q: What packaging options are available for active substitutes?

A: Active substitutes are available in three packaging formats: 20-TSSOP (standard reel and tube options), 20-TVSOP (reel and cut tape options), and various tape & reel configurations. Select based on your procurement and assembly requirements.

Q: Is the supply voltage range identical across all substitutes?

A: Most substitutes operate at 1.65V ~ 3.6V, matching the original part. TC74VCX244FTEL operates at a wider range of 1.2V ~ 3.6V, providing additional low-voltage capability if required.

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