SN74ALVC244PWRE4 Equivalent & Substitute Parts

Part Overview

The SN74ALVC244PWRE4 is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 3-state output applications in low-voltage digital systems. This device features 2 elements with 4 bits per element, operating across a supply voltage range of 1.65V to 3.6V. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain functional and electrical compatibility for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74ALVC244PWRE4
Manufacturer	Texas Instruments
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

Substitution eligibility for the SN74ALVC244PWRE4 is determined by strict equivalence across 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 (minimum requirement)
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical and mechanical specifications) and Manufacturer-Recommended alternatives (functionally compatible with minor specification variations).

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements	Bits/Element	Output Type	I/O Current (mA)	Supply Voltage	Temp Range	Package	Product Status
SN74ALVC244PWRE4	Texas Instruments	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Discontinued
SN74ALVC244IPWREP	Texas Instruments	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74ALVC244PWR	Texas Instruments	74ALVC	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74ALVCH244PWR	Texas Instruments	74ALVCH	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74LVCH244APWR	Texas Instruments	74LVCH	Buffer, Non-Inverting	2	4	3-State	24, 24	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active
SN74LVCH244APWT	Texas Instruments	74LVCH	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	TC74VCX	Buffer, Non-Inverting	2	4	3-State	24, 24	1.2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Not For New Designs
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
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

Engineering Selection Recommendations

For applications requiring direct replacement of the discontinued SN74ALVC244PWRE4, the following selection criteria apply:

Primary Recommendation - Texas Instruments Active Parts: SN74ALVC244PWR and SN74ALVC244IPWREP are parametric equivalents with identical electrical specifications and active product status. Both maintain full compatibility with the original part across all critical parameters. SN74ALVC244PWR offers the highest inventory availability (6200 pcs) and is available in Cut Tape and Digi-Reel packaging.

Alternative Texas Instruments Series: SN74ALVCH244PWR, SN74LVCH244APWR, and SN74LVCH244APWT are functionally equivalent alternatives from Texas Instruments with active product status. These parts maintain identical electrical performance and package specifications, differing only in series designation and packaging format.

Cross-Manufacturer Alternatives: 74ALVC244PW,118 (Nexperia USA Inc.) and 74LCX244FT (Toshiba Semiconductor and Storage) are parametric equivalents with active product status. Both maintain full electrical and mechanical compatibility. Nexperia's part offers 3470 pcs inventory availability.

Not Recommended for New Designs: TC74VCX244FTEL (Toshiba) carries a "Not For New Designs" status and should be avoided for new applications, though it remains functionally compatible with a lower minimum supply voltage specification (1.2V vs. 1.65V).

All recommended substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ALVC244PWR as a direct replacement for SN74ALVC244PWRE4? A: Yes. SN74ALVC244PWR is a parametric equivalent with identical electrical specifications, output current ratings, supply voltage range, operating temperature, and 20-TSSOP package. The primary difference is packaging format (Cut Tape & Digi-Reel vs. the original format) and active product status.

Q: What is the difference between the 74ALVC, 74ALVCH, and 74LVCH series? A: All three series maintain identical electrical performance for this buffer application: 2 elements, 4 bits per element, 3-state output, 24mA output current, and 1.65V to 3.6V supply voltage. Series designation reflects internal design variations that do not affect functional compatibility in this application.

Q: Is TC74VCX244FTEL compatible with SN74ALVC244PWRE4? A: TC74VCX244FTEL is functionally compatible with identical logic type, element count, bit configuration, output type, and current ratings. However, it carries a "Not For New Designs" status and features a lower minimum supply voltage (1.2V vs. 1.65V). It should not be selected for new applications.

Q: Does packaging format affect substitution eligibility? A: All substitute parts use the same 20-TSSOP package with identical mechanical dimensions (0.173", 4.40mm Width). Packaging format differences (Cut Tape, Tape & Reel, Digi-Reel) relate only to supply and handling, not electrical or mechanical compatibility.

Q: Are all substitute parts RoHS compliant? A: Yes. All recommended substitute parts maintain ROHS3 compliance and MSL Level 1 rating, meeting standard environmental and manufacturing requirements.

Q: Which substitute offers the best inventory availability? A: SN74ALVC244PWR (Texas Instruments) offers the highest inventory with 6200 pcs in stock, followed by 74LCX244FT (Toshiba) with 3794 pcs and 74ALVC244PW,118 (Nexperia) with 3470 pcs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message