74AC241MTCX Equivalent & Substitute Parts

Part Overview

The 74AC241MTCX 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, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 74AC series buffer is widely used in digital logic applications requiring signal buffering and bus driving functionality with 3-state output control.

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	2V ~ 6V
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 for the 74AC241MTCX is determined by strict equivalence across the following critical parameters: logic type (non-inverting buffer), element count (2), bits per element (4), output type (3-state), output current capability (24mA high and low), supply voltage range (2V ~ 6V), operating temperature range (-40°C ~ 85°C), and surface mount packaging. Parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalents share identical electrical and mechanical specifications with the 74AC241MTCX, differing only in manufacturer or packaging format. These parts are direct functional replacements.

Direct Manufacturer Parts are alternative part numbers from the same or different manufacturers that maintain full compatibility with the original specification.

Similar Parts may have minor package variations (such as 20-SSOP versus 20-TSSOP) but retain all critical electrical parameters.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status
74AC241MTCX	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Obsolete
74AC244MTCX	Fairchild Semiconductor	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Active
MC74AC244DTR2G	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Active
SN74AC241PW	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Discontinued at DiGi Electronics
SN74AC241DBR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-SSOP	Active
SN74AC241PWR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Active
SN74AC244PWR	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	2V ~ 6V	-40°C ~ 85°C	20-TSSOP	Active

Engineering Selection Recommendations

For applications currently using the obsolete 74AC241MTCX, the following selection criteria apply:

Primary Recommendation: MC74AC244DTR2G (onsemi) and SN74AC241PWR (Texas Instruments) are preferred substitutes. Both maintain identical electrical specifications and 20-TSSOP packaging. MC74AC244DTR2G offers the highest current inventory (15,406 pcs) and carries RoHS3 compliance. SN74AC241PWR is actively produced by Texas Instruments with robust availability (3,094 pcs) and RoHS3 compliance.

Alternative Selection: 74AC244MTCX (Fairchild Semiconductor) provides parametric equivalence with active product status and identical packaging. SN74AC244PWR (Texas Instruments) is functionally equivalent with active status and high inventory levels (2,900 pcs).

Package Consideration: SN74AC241DBR uses 20-SSOP packaging (0.209", 5.30mm width) instead of 20-TSSOP (0.173", 4.40mm width). This part maintains all electrical specifications but requires PCB layout verification due to package footprint differences.

All recommended substitutes carry REACH Unaffected and EAR99 ECCN classifications, matching the original part's compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use SN74AC241DBR as a direct replacement for 74AC241MTCX?

A: SN74AC241DBR is electrically equivalent but uses 20-SSOP packaging instead of 20-TSSOP. The package footprint differs (5.30mm versus 4.40mm width), requiring PCB layout verification before substitution.

Q: What is the difference between 74AC241 and 74AC244 base part numbers?

A: Both are non-inverting buffers with identical electrical specifications (2 elements, 4 bits per element, 3-state output, 24mA drive capability). The base number difference reflects manufacturer design variants but does not affect functional compatibility in applications.

Q: Are all substitute parts RoHS compliant?

A: MC74AC244DTR2G and all Texas Instruments parts (SN74AC241PW, SN74AC241DBR, SN74AC241PWR, SN74AC244PWR) carry RoHS3 compliance. The original 74AC241MTCX does not specify RoHS status.

Q: Which substitute has the best availability?

A: MC74AC244DTR2G (onsemi) has the highest inventory at 15,406 pcs in stock, followed by SN74AC241DBR (Texas Instruments) with 2,781 pcs.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All listed substitutes maintain identical electrical parameters (supply voltage 2V ~ 6V, operating temperature -40°C ~ 85°C, output current 24mA, 3-state logic). Mixing manufacturers is acceptable provided PCB layout accommodates the package type (20-TSSOP or 20-SSOP).

Q: Is SN74AC241PW still available?

A: SN74AC241PW is discontinued at DiGi Electronics but 983 pcs remain in stock. For new designs, use SN74AC241PWR or MC74AC244DTR2G for assured long-term availability.

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