74ABT244CSJ Equivalent & Substitute Parts

Part Overview

The 74ABT244CSJ is a non-inverting buffer logic IC manufactured by onsemi, featuring 2 elements with 4 bits per element and 3-state output capability. Designed for 4.5V to 5.5V supply operation, this component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, equivalent substitute parts from active product lines are necessary to ensure design continuity and procurement reliability.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 74ABT244CSJ are classified based on the following criteria:

Direct Substitutes (Same Base Product - 74ABT244): Parts maintaining identical logic configuration, element count, bit width, output type, supply voltage range, and operating temperature. These parts differ only in packaging format or supplier designation.

Parametric Equivalents (Enhanced Base Product - 74ABT2244): Parts with identical functional parameters but based on the 74ABT2244 base product number. These maintain all critical electrical specifications while offering active product status and RoHS3 compliance.

Key Parameters for Substitution:

Logic Type: Buffer, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 4
Output Type: 3-State
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
Moisture Sensitivity Level: 1 (Unlimited)

Parameter Comparison

Part Number	Manufacturer	Base Product	Product Status	Current - Output High (mA)	Current - Output Low (mA)	Package / Case	Packaging	RoHS Status	Inventory (Pcs)
74ABT244CSJ	onsemi	74ABT244	Obsolete	32	64	20-SOIC (0.209", 5.30mm Width)	-	-	2200
SN74ABT244ADW	Texas Instruments	74ABT244	Active	32	64	20-SOIC (0.295", 7.50mm Width)	Tube	ROHS3 Compliant	3195
SN74ABT244ADWR	Texas Instruments	74ABT244	Active	32	64	20-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	ROHS3 Compliant	2800
SN74ABT244ANSR	Texas Instruments	74ABT244	Active	32	64	20-SOIC (0.209", 5.30mm Width)	Tape & Reel (TR)	ROHS3 Compliant	3400
SN74ABT244ANS	Texas Instruments	74ABT244	Active	32	64	20-SOIC (0.209", 5.30mm Width)	-	ROHS3 Compliant	969
SN74ABT2244ADW	Texas Instruments	74ABT2244	Active	32	12	20-SOIC (0.295", 7.50mm Width)	Tube	ROHS3 Compliant	2000
SN74ABT2244ADWR	Texas Instruments	74ABT2244	Active	32	12	20-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	ROHS3 Compliant	3215
SN74ABT2244ANS	Texas Instruments	74ABT2244	Active	32	12	20-SOIC (0.209", 5.30mm Width)	Tube	ROHS3 Compliant	1481
SN74ABT2244ANSR	Texas Instruments	74ABT2244	Active	32	12	20-SOIC (0.209", 5.30mm Width)	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant	10400

Engineering Selection Recommendations

Direct Substitutes (74ABT244 Base Product): SN74ABT244ANSR, SN74ABT244ADW, SN74ABT244ADWR, and SN74ABT244ANS are direct functional equivalents with identical output current specifications (32mA high, 64mA low). All are manufactured by Texas Instruments with active product status and ROHS3 compliance. SN74ABT244ANSR offers the highest inventory availability (3400 pcs) with matching package dimensions to the original 74ABT244CSJ (0.209", 5.30mm width) and Tape & Reel packaging suitable for automated assembly.

Parametric Equivalents (74ABT2244 Base Product): SN74ABT2244ADWR, SN74ABT2244ADW, SN74ABT2244ANS, and SN74ABT2244ANSR maintain identical functional parameters with reduced output low current (12mA versus 64mA). These parts are suitable for applications where lower output current is acceptable. SN74ABT2244ANSR provides maximum inventory (10400 pcs) with matching package dimensions and active product status.

All substitute options maintain supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and MSL rating (1 - Unlimited). Selection should prioritize active product status, ROHS3 compliance, and packaging compatibility with existing assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT2244 series parts replace the 74ABT244CSJ directly?

A: SN74ABT2244 parts are parametric equivalents with identical logic function, element count, bit width, and output type. The primary difference is reduced output low current (12mA versus 64mA). Substitution is valid if the application does not require the higher output current capability of the original part.

Q: What is the difference between packaging designations (ADW, ADWR, ANS, ANSR)?

A: ADW and ADWR variants use 20-SOIC packages with 0.295" (7.50mm) width. ANS and ANSR variants use 20-SOIC packages with 0.209" (5.30mm) width, matching the original 74ABT244CSJ dimensions. ADWR and ANSR include Tape & Reel packaging for automated assembly. ADW and ANS use Tube packaging.

Q: Are all substitute parts RoHS3 compliant?

A: All Texas Instruments substitute parts listed are ROHS3 compliant. The original 74ABT244CSJ does not specify RoHS status.

Q: Which substitute offers the best availability?

A: SN74ABT2244ANSR provides the highest inventory (10400 pcs) with active product status, ROHS3 compliance, and matching package dimensions (0.209", 5.30mm width) to the original part.

Q: Can I use different packaging formats interchangeably?

A: Packaging format selection depends on assembly process requirements. Tube packaging (ADW, ANS) suits manual or semi-automated assembly. Tape & Reel packaging (ADWR, ANSR) is optimized for automated pick-and-place assembly. Package dimensions must match PCB footprint requirements.

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