CD74ACT244M Equivalent & Substitute Parts

Part Overview

The CD74ACT244M is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability. This 20-SOIC surface mount device operates across a 4.5V to 5.5V supply range and is rated for -40°C to 85°C operating temperature. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

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-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the CD74ACT244M 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 ratings (24mA output high and low), Supply Voltage range (4.5V ~ 5.5V), Operating Temperature range (-40°C ~ 85°C), Package type (20-SOIC), and Mounting Type (Surface Mount). All substitute parts listed maintain identical electrical and mechanical specifications within these parameters. Packaging format (Cut Tape, Tube, or Tape & Reel) and product status variations do not affect functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	Inventory
CD74ACT244M	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Discontinued	1300 Pcs
CD74ACT244M96	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	2000 Pcs
SN74ACT244DW	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Discontinued	7200 Pcs
MC74ACT244DWR2G	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	35100 Pcs
74ACT244SCX	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	9458 Pcs
74ACT244SC	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	1665 Pcs
MC74ACT244DWG	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	2032 Pcs
SN74ACT241DW	Texas Instruments	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Last Time Buy	2680 Pcs
MC74ACT241DWG	onsemi	Buffer, Non-Inverting	2	4	3-State	24/24	4.5V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Obsolete	1126 Pcs

Engineering Selection Recommendations

For active production designs, CD74ACT244M96 (Texas Instruments, Active status) provides direct manufacturer continuity with identical specifications and improved availability. MC74ACT244DWR2G (onsemi, Active status) offers the highest inventory level at 35,100 pieces and maintains full electrical and mechanical compatibility. Both parts are ROHS3 compliant and suitable for new designs.

For existing designs currently using CD74ACT244M, SN74ACT244DW and SN74ACT241DW remain available from Texas Instruments stock, though both carry discontinued or last-time-buy status. onsemi alternatives 74ACT244SCX and 74ACT244SC provide active product status with stable long-term availability.

MC74ACT241DWG is classified as obsolete and should not be selected for new applications despite technical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I substitute CD74ACT244M with CD74ACT244M96? A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, output current ratings, supply voltage range, operating temperature, and 20-SOIC package. The primary difference is packaging format and product status; CD74ACT244M96 is currently active.

Q: What is the difference between Texas Instruments and onsemi substitute parts? A: All listed substitutes maintain identical logic function, element count, bit configuration, output type, current ratings, voltage range, temperature range, and package specifications. Manufacturer differences do not affect functional equivalence. onsemi parts generally offer higher inventory availability.

Q: Are there packaging format differences among the substitutes? A: Yes. Substitutes are available in Cut Tape (CT) & Digi-Reel, Tube, and Tape & Reel (TR) formats. These packaging variations do not affect electrical or mechanical compatibility; selection depends on procurement and assembly requirements.

Q: Why is MC74ACT241DWG listed if it is obsolete? A: MC74ACT241DWG maintains full parametric equivalence with CD74ACT244M and is included for reference in legacy system support scenarios. For new designs, active-status alternatives are recommended.

Q: Do all substitutes meet the same compliance standards? A: All listed parts are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level varies between MSL 1 (Unlimited) and MSL 3 (168 Hours); verify storage and handling requirements for your specific manufacturing process.

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