74ABT245CPC Equivalent & Substitute Parts

Part Overview

The 74ABT245CPC is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit bidirectional data transfer with 3-state output capability. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 20-pin DIP package. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	32mA, 64mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Through Hole
Package / Case	20-DIP (0.300", 7.62mm)
Supplier Device Package	20-PDIP

Substitute Part Grouping Explanation

Substitution of the 74ABT245CPC is determined by strict equivalence across the following critical parameters:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 1
Number of Bits per Element: 8
Output Type: 3-State
Current - Output High, Low: 32mA, 64mA
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 20-DIP (0.300", 7.62mm)
Supplier Device Package: 20-PDIP

All substitute parts listed below meet these exact specifications and are therefore functionally and mechanically interchangeable with the original 74ABT245CPC.

Parameter Comparison

Parameter	74ABT245CPC (onsemi)	SN74ABT245BN (TI)	SN74ABT245BNE4 (TI)	SN74ABT623N (TI)	SN74ABTH245N (TI)
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting
Number of Elements	1	1	1	1	1
Number of Bits per Element	8	8	8	8	8
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)
Supplier Device Package	20-PDIP	20-PDIP	20-PDIP	20-PDIP	20-PDIP
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001

Engineering Selection Recommendations

All four substitute parts—SN74ABT245BN, SN74ABT245BNE4, SN74ABT623N, and SN74ABTH245N—are manufactured by Texas Instruments and maintain active product status, ensuring long-term availability and supply chain stability compared to the obsolete 74ABT245CPC.

The Texas Instruments substitutes carry ROHS3 compliance certification, meeting modern environmental and regulatory requirements. All parts maintain REACH Unaffected status and EAR99 export classification, consistent with the original component.

For applications requiring maximum supply availability, SN74ABT245BN offers the highest inventory level at 3396 units. For applications with specific traceability requirements, SN74ABT245BNE4 provides an alternative Texas Instruments variant. SN74ABT623N and SN74ABTH245N represent additional parametric equivalents with active status and full compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT245BN be used as a direct replacement for 74ABT245CPC?

A: Yes. SN74ABT245BN meets all electrical and mechanical specifications of the 74ABT245CPC, including logic type, bit configuration, output characteristics, supply voltage range, operating temperature, and 20-DIP package format.

Q: What is the difference between SN74ABT245BN and SN74ABT245BNE4?

A: Both parts are Texas Instruments products with identical electrical and mechanical specifications. SN74ABT245BNE4 represents an alternative part number variant. Selection between them depends on procurement requirements and inventory availability.

Q: How does SN74ABT623N differ from SN74ABT245BN?

A: SN74ABT623N maintains identical electrical specifications and package format. The difference lies in the base product number designation (74ABT623 versus 74ABT245), though parametric equivalence is confirmed across all critical operating parameters.

Q: Is SN74ABTH245N compatible with the original 74ABT245CPC?

A: Yes. SN74ABTH245N is parametrically equivalent to 74ABT245CPC. The "H" designation in the series name indicates a variant within the Texas Instruments product line, but all functional and mechanical parameters remain identical.

Q: Are all substitute parts RoHS compliant?

A: All Texas Instruments substitutes carry ROHS3 Compliant certification. The original 74ABT245CPC does not specify RoHS status, making the substitutes suitable for applications with RoHS compliance requirements.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the identical 20-DIP (0.300", 7.62mm) package format and pin configuration, enabling direct socket replacement without PCB modification.

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