74ACT241MTCX Equivalent & Substitute Parts

Part Overview

The 74ACT241MTCX is a non-inverting buffer logic IC manufactured by onsemi, featuring 2 elements with 4 bits per element and 3-state output capability. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part operates within the 74ACT logic family standard, providing 24mA output current capability at supply voltages between 4.5V and 5.5V.

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	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74ACT241MTCX is determined by strict equivalence across the following critical parameters: logic type (non-inverting buffer), element count (2), bits per element (4), output configuration (3-state), output current specifications (24mA high and low), supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and package type (20-TSSOP surface mount).

Substitute parts are grouped into two categories:

Parametric Equivalents maintain identical electrical and mechanical specifications with differences only in packaging format (tape & reel versus cut tape) or manufacturer designation. These parts are direct functional replacements.

Similar Parts share the same logic function and electrical specifications but may differ in package case dimensions (20-SSOP versus 20-TSSOP) or product status. These require verification of PCB layout compatibility before substitution.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	RoHS Status
74ACT241MTCX	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Obsolete	Not Specified
74ACT244MTCX	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
MC74ACT241DTR2G	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
MC74ACT244DTR2G	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
SN74ACT241DBR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	ROHS3 Compliant
SN74ACT241PW	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Discontinued at DiGi Electronics	ROHS3 Compliant
SN74ACT241PWR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
SN74ACT244IPWRG4Q1	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
SN74ACT244IPWRQ1	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant
SN74ACT244PWR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MC74ACT244DTR2G

This onsemi part is a parametric equivalent with identical electrical specifications and 20-TSSOP packaging. It maintains active product status with ROHS3 compliance and offers the highest inventory availability (125,100 units), ensuring supply chain continuity.

Secondary Recommendation: SN74ACT244PWR

This Texas Instruments part provides equivalent functionality with active status and ROHS3 compliance. The 20-TSSOP package matches the original 74ACT241MTCX footprint, and inventory levels (45,400 units) support production requirements.

Alternative for Automotive Applications: SN74ACT244IPWRG4Q1 or SN74ACT244IPWRQ1

Both Texas Instruments parts carry AEC-Q100 qualification and automotive-grade designation, suitable for applications requiring automotive-level reliability and traceability.

Package Consideration: SN74ACT241DBR

This Texas Instruments part uses 20-SSOP packaging (0.209", 5.30mm width) instead of 20-TSSOP (0.173", 4.40mm width). PCB layout verification is required before substitution due to dimensional differences.

Avoid: SN74ACT241PW

This part is discontinued at DiGi Electronics and should not be selected for new designs despite active status elsewhere.

Frequently Asked Questions (FAQ)

Q: Can I substitute 74ACT241MTCX with 74ACT244MTCX?

A: Yes. Both parts share identical electrical specifications: 2 elements, 4 bits per element, 3-state output, 24mA output current, 4.5V–5.5V supply range, and -40°C to 85°C operating temperature. The primary difference is product status (74ACT244MTCX is active). Both use 20-TSSOP packaging.

Q: What is the difference between onsemi and Texas Instruments versions?

A: Functionally, there is no difference in electrical performance. Both manufacturers produce parts meeting identical 74ACT logic family specifications. Selection depends on supply availability, packaging format preference, and compliance requirements. Texas Instruments offers automotive-qualified variants (IPWRQ1, IPWRG4Q1) with AEC-Q100 certification.

Q: Why does SN74ACT241DBR have a different package designation?

A: SN74ACT241DBR uses 20-SSOP packaging (5.30mm width) compared to the original 20-TSSOP (4.40mm width). While electrical specifications are identical, the physical footprint differs. PCB layout compatibility must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed carry ROHS3 compliance. The original 74ACT241MTCX does not specify RoHS status due to its obsolete classification.

Q: Which part has the best inventory availability?

A: MC74ACT244DTR2G offers the highest inventory (125,100 units), followed by SN74ACT244PWR (45,400 units). Both are active products suitable for immediate procurement.

Q: Can I use automotive-qualified parts in non-automotive applications?

A: Yes. Automotive-qualified parts (SN74ACT244IPWRQ1, SN74ACT244IPWRG4Q1) meet or exceed standard specifications and are suitable for any application requiring equivalent functionality. Their additional qualification provides enhanced reliability margins.

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