PI74FCT244CTSE Equivalent & Substitute Parts

Part Overview

The PI74FCT244CTSE is a non-inverting buffer logic IC manufactured by Diodes Incorporated, designed for 2 element, 4-bit per element configurations with 3-state output capability. This component operates within the 4.75V to 5.25V supply voltage range and is housed in a 20-SOIC package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI74FCT244CTSE
Manufacturer	Diodes Incorporated
Series	74FCT
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	15mA, 64mA
Voltage - Supply	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the PI74FCT244CTSE 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
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Supply voltage range: 4.75V ~ 5.25V
Current output specifications: 15mA (high), 64mA (low)
Operating temperature range: -40°C ~ 85°C

Substitute parts are grouped into two categories based on base product number alignment:

Category 1: 74FCT244 Base Series - Direct functional equivalents with identical electrical specifications and output current ratings (15mA, 64mA).

Category 2: 74FCT2244 Base Series - Functionally compatible with modified output current specifications (15mA, 12mA), suitable for applications where lower output current is acceptable.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Base Product	Product Status	Current - Output High, Low (mA)	Operating Temperature (°C)	RoHS Status	Packaging
PI74FCT244CTSE	Diodes Incorporated	74FCT244	Obsolete	15, 64	-40 ~ 85	ROHS3 Compliant	Bulk
74FCT244ATSOG8	IDT	74FCT244	Active	15, 64	-40 ~ 85	Not specified	Bulk
CD74FCT244ATM	Harris Corporation	74FCT244	Obsolete	15, 64	0 ~ 70	RoHS non-compliant	Tube
CD74FCT244ATM96	Texas Instruments	74FCT244	Active	15, 64	0 ~ 70	ROHS3 Compliant	Tape & Reel
CD74FCT244M	Harris Corporation	74FCT244	Obsolete	15, 64	0 ~ 70	RoHS non-compliant	Tube
CD74FCT244M96	Harris Corporation	74FCT244	Obsolete	15, 64	0 ~ 70	RoHS non-compliant	Bulk
CY74FCT2244ATSOC	Texas Instruments	74FCT2244	Active	15, 12	-40 ~ 85	ROHS3 Compliant	Tube
CY74FCT2244CTSOC	Texas Instruments	74FCT2244	Active	15, 12	-40 ~ 85	ROHS3 Compliant	Tube
CY74FCT2244TSOC	Texas Instruments	74FCT2244	Active	15, 12	-40 ~ 85	ROHS3 Compliant	Tube
CY74FCT244ATSOC	Texas Instruments	74FCT244	Active	32, 64	-40 ~ 85	ROHS3 Compliant	Tube
CY74FCT244ATSOCT	Cypress Semiconductor Corp	74FCT244	Active	32, 64	-40 ~ 85	Not specified	Bulk

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

CD74FCT244ATM96 (Texas Instruments) and 74FCT244ATSOG8 (IDT) are the preferred substitutes. Both maintain active product status, ROHS3 compliance, and identical electrical specifications to the PI74FCT244CTSE. CD74FCT244ATM96 is available in Tape & Reel packaging, suitable for automated assembly processes.

Secondary Substitutes (Operating Temperature Consideration):

CD74FCT244ATM and CD74FCT244M (Harris Corporation) provide functional equivalence but operate within a reduced temperature range (0°C ~ 70°C versus -40°C ~ 85°C). These parts are obsolete and non-compliant with RoHS standards. Selection is appropriate only for applications not requiring extended low-temperature operation or RoHS certification.

Alternative Substitutes (Modified Output Current):

CY74FCT2244ATSOC, CY74FCT2244CTSOC, and CY74FCT2244TSOC (Texas Instruments) are functionally compatible alternatives with reduced output low current (12mA versus 64mA). These parts maintain active status, ROHS3 compliance, and full temperature range (-40°C ~ 85°C). Selection is appropriate for applications where lower output current specifications are acceptable.

Enhanced Output Current Alternatives:

CY74FCT244ATSOC (Texas Instruments) and CY74FCT244ATSOCT (Cypress Semiconductor Corp) provide increased output high current (32mA versus 15mA) while maintaining 64mA output low current. Both maintain active status and full temperature range operation. Selection is appropriate for applications requiring higher output drive capability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PI74FCT244CTSE with CD74FCT244ATM96?

A: Yes. CD74FCT244ATM96 maintains identical logic type, element configuration, output type, package, and supply voltage specifications. Both parts operate at -40°C to 85°C and are ROHS3 compliant. The primary difference is packaging format (Tape & Reel versus bulk).

Q: What is the difference between 74FCT244 and 74FCT2244 base series substitutes?

A: The 74FCT2244 series provides reduced output low current (12mA versus 64mA). Both series maintain identical logic function, element count, and package specifications. Selection depends on whether your application requires the full 64mA output current specification.

Q: Are obsolete substitute parts acceptable for new designs?

A: Obsolete parts such as CD74FCT244ATM, CD74FCT244M, and CD74FCT244M96 are not recommended for new designs. Active status parts (CD74FCT244ATM96, 74FCT244ATSOG8, CY74FCT244ATSOC) ensure long-term availability and supply chain stability.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in Bulk, Tube, and Tape & Reel packaging. Tape & Reel (CD74FCT244ATM96) is optimized for automated assembly. Bulk and Tube packaging are suitable for manual assembly or lower-volume applications.

Q: Does operating temperature range affect substitution compatibility?

A: Operating temperature range is a critical parameter. The PI74FCT244CTSE operates from -40°C to 85°C. Substitutes with reduced temperature ranges (0°C to 70°C) are compatible only for applications not requiring extended low-temperature operation.

Q: Are all substitute parts RoHS compliant?

A: No. Active substitutes (CD74FCT244ATM96, 74FCT244ATSOG8, CY74FCT244 series) are ROHS3 compliant. Obsolete Harris Corporation parts (CD74FCT244ATM, CD74FCT244M, CD74FCT244M96) are RoHS non-compliant. Compliance requirements should be verified against your application standards.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message