SN74ALVC244IPWREP Equivalent & Substitute Parts

Part Overview

The SN74ALVC244IPWREP is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for low-voltage digital applications. This device features 2 elements with 4 bits per element and 3-state output capability, operating across a supply voltage range of 1.65V to 3.6V. The part is housed in a 20-TSSOP surface mount package and maintains active product status with full RoHS3 compliance. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity while maintaining electrical and mechanical compatibility.

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	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°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

Substitute parts for the SN74ALVC244IPWREP are classified based on strict electrical and mechanical parameter alignment. All identified substitutes maintain identical functional specifications: 2-element, 4-bit non-inverting buffer with 3-state output, 24mA output current capability, 20-TSSOP package geometry, and surface mount configuration. Substitution eligibility is determined by the following critical parameters:

Logic Type: Buffer, Non-Inverting (identical across all substitutes)
Number of Elements: 2 (identical across all substitutes)
Number of Bits per Element: 4 (identical across all substitutes)
Output Type: 3-State (identical across all substitutes)
Output Current: 24mA, 24mA (identical across all substitutes)
Package / Case: 20-TSSOP (identical across all substitutes)
Mounting Type: Surface Mount (identical across all substitutes)
Operating Temperature Range: -40°C ~ 85°C (identical across all substitutes)

Substitutes are further categorized by supply voltage range and product status. Texas Instruments parametric equivalents (SN74ALVC244PWR, SN74ALVCH244PWR, SN74LVCH244APWR, SN74LVCH244APWT) and Nexperia equivalent (74ALVC244PW,118) maintain the 1.65V ~ 3.6V supply voltage specification. The Toshiba TC74VCX244FTEL operates at 1.2V ~ 3.6V, providing extended low-voltage capability. The Toshiba 74LCX244FT maintains 1.65V ~ 3.6V compatibility. Packaging variants (Tape & Reel vs. Cut Tape) do not affect electrical substitution but influence procurement and handling considerations.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	RoHS Status	Packaging Type	Inventory (Pcs)
SN74ALVC244IPWREP	Texas Instruments	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Tape & Reel	989
SN74ALVC244PWR	Texas Instruments	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Cut Tape & Digi-Reel	6200
SN74ALVCH244PWR	Texas Instruments	74ALVCH	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Tape & Reel	3352
SN74LVCH244APWR	Texas Instruments	74LVCH	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Cut Tape & Digi-Reel	3560
SN74LVCH244APWT	Texas Instruments	74LVCH	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Tape & Reel	1526
TC74VCX244FTEL	Toshiba Semiconductor and Storage	TC74VCX	Buffer, Non-Inverting	2	4	3-State	24, 24	1.2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Not For New Designs	RoHS Compliant	Cut Tape	824
74ALVC244PW,118	Nexperia USA Inc.	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Tape & Reel	3470
74LCX244FT	Toshiba Semiconductor and Storage	74LCX	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3	Cut Tape & Digi-Reel	3794

Engineering Selection Recommendations

Selection among equivalent and substitute parts should prioritize product status and compliance certifications. All Texas Instruments parts (SN74ALVC244PWR, SN74ALVCH244PWR, SN74LVCH244APWR, SN74LVCH244APWT) and the Nexperia part (74ALVC244PW,118) maintain Active product status with ROHS3 compliance, making them suitable for new designs and long-term production applications. The Toshiba TC74VCX244FTEL carries "Not For New Designs" status and should be reserved for legacy system maintenance or replacement scenarios only.

For applications requiring extended low-voltage operation below 1.65V, the TC74VCX244FTEL provides 1.2V minimum supply capability. All other substitutes operate within the standard 1.65V ~ 3.6V range. Packaging format selection (Tape & Reel vs. Cut Tape & Digi-Reel) depends on procurement volume and assembly line requirements but does not affect electrical performance.

Inventory availability varies across substitutes, with SN74ALVC244PWR offering the highest stock level (6200 pcs), followed by 74LCX244FT (3794 pcs) and 74ALVC244PW,118 (3470 pcs). The original SN74ALVC244IPWREP maintains 989 pcs in stock.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC244PWR be used as a direct replacement for SN74ALVC244IPWREP?

A: Yes. Both parts are Texas Instruments 74ALVC series devices with identical electrical specifications: 2-element, 4-bit non-inverting buffer, 3-state output, 24mA drive capability, 1.65V ~ 3.6V supply range, and 20-TSSOP package. The difference is packaging format: SN74ALVC244IPWREP is supplied in Tape & Reel, while SN74ALVC244PWR is available in Cut Tape & Digi-Reel. Both are Active status products with ROHS3 compliance.

Q: What is the difference between the Texas Instruments and Nexperia 74ALVC244 parts?

A: The 74ALVC244PW,118 from Nexperia USA Inc. is electrically equivalent to the Texas Instruments SN74ALVC244 variants. Both maintain identical functional specifications, supply voltage range (1.65V ~ 3.6V), output current (24mA), package geometry (20-TSSOP), and compliance certifications (ROHS3). The primary difference is manufacturer source and part numbering convention.

Q: Can the Toshiba TC74VCX244FTEL be used in new designs?

A: No. The TC74VCX244FTEL carries "Not For New Designs" product status. This part should be used only for replacement or maintenance of existing systems. For new designs, select from Active status alternatives: SN74ALVC244PWR, SN74ALVCH244PWR, SN74LVCH244APWR, SN74LVCH244APWT, or 74ALVC244PW,118.

Q: Does the Toshiba TC74VCX244FTEL offer any advantage over other substitutes?

A: The TC74VCX244FTEL operates at a minimum supply voltage of 1.2V, compared to 1.65V for other substitutes. This extended low-voltage capability may be beneficial for ultra-low-power applications. However, its "Not For New Designs" status limits its use to legacy system support.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the 20-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical compatibility. Packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) varies by part number but does not affect board-level compatibility.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain RoHS compliance. Texas Instruments and Nexperia parts are ROHS3 compliant. The Toshiba parts are RoHS compliant. All parts are MSL 1 (Unlimited moisture sensitivity level) and carry EAR99 ECCN classification with HTSUS code 8542.39.0001.

Q: Which substitute offers the best inventory availability?

A: SN74ALVC244PWR from Texas Instruments provides the highest inventory level at 6200 pcs, followed by 74LCX244FT (3794 pcs) and 74ALVC244PW,118 (3470 pcs). Inventory levels support both immediate procurement and long-term production planning.

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