SN74ABTH245DWR Equivalent & Substitute Parts

Part Overview

The SN74ABTH245DWR is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data bus applications. This device operates at supply voltages between 4.5V and 5.5V with 3-state output capability, making it suitable for bidirectional signal buffering in digital systems. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on matching electrical specifications, functional equivalence, and compatible packaging standards.

Key Parameters

Parameter	Specification
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-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74ABTH245DWR are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical logic type (non-inverting transceiver), element count (1), bit width (8 bits), output configuration (3-state), output current ratings (32mA high / 64mA low), and supply voltage range (4.5V ~ 5.5V).

Thermal Compatibility: Operating temperature range of -40°C to 85°C is maintained across all substitutes.

Compliance & Certification: All substitutes carry ROHS3 compliance, MSL 1 rating, and identical ECCN/HTSUS classifications.

Packaging Considerations: Substitutes are available in either 20-SOIC or 20-SO package variants, both compatible with the same PCB footprint and mounting methodology (surface mount).

Manufacturer Variants: Substitutes include both Texas Instruments and Nexperia USA Inc. manufactured parts, all within the 74ABT/74ABTH logic series family.

Parameter Comparison

Parameter	SN74ABTH245DWR	SN74ABT245BDWR	SN74ABT623DWR	74ABT245D,623
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Nexperia USA Inc.
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting
Number of Elements	1	1	1	1
Number of Bits per Element	8	8	8	8
Output Type	3-State	3-State	3-State	3-State
Current - Output High / Low	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
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-SOIC	20-SOIC	20-SOIC	20-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the SN74ABTH245DWR and maintain full electrical and thermal compatibility. Selection among these alternatives should be based on:

Packaging Format: The SN74ABTH245DWR and SN74ABT623DWR are supplied in Tape & Reel (TR) format, while SN74ABT245BDWR is available in Cut Tape (CT) & Digi-Reel® format, and 74ABT245D,623 is supplied in Cut Tape (CT) & Digi-Reel® format. Choose based on procurement and assembly requirements.

Manufacturer Availability: Texas Instruments parts (SN74ABTH245DWR, SN74ABT245BDWR, SN74ABT623DWR) and Nexperia USA Inc. part (74ABT245D,623) are all in active production with confirmed inventory availability.

Compliance Certification: All substitutes carry identical RoHS3 compliance, MSL 1 rating, REACH unaffected status, and matching ECCN/HTSUS classifications, ensuring regulatory equivalence for all applications.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT245BDWR be used as a direct replacement for SN74ABTH245DWR?

A: Yes. Both parts are electrically identical non-inverting transceivers with matching 8-bit configuration, 3-state output, 32mA/64mA current ratings, 4.5V–5.5V supply range, and -40°C to 85°C operating temperature. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Q: What is the difference between SN74ABT623DWR and SN74ABTH245DWR?

A: Both parts are functionally equivalent transceivers with identical electrical specifications. The difference lies in the base product number designation (74ABT623 versus 74ABTH245) and manufacturer series classification, but all critical parameters including logic type, bit width, output current, and supply voltage are identical.

Q: Is the Nexperia part 74ABT245D,623 compatible with the Texas Instruments SN74ABTH245DWR?

A: Yes. The Nexperia part maintains all electrical equivalence criteria: non-inverting transceiver logic, 8-bit configuration, 3-state output, identical current ratings, and matching supply voltage and temperature ranges. Both are RoHS3 compliant with MSL 1 rating.

Q: Are there any package differences that affect PCB compatibility?

A: All parts use 20-SOIC or 20-SO package variants with 0.295" (7.50mm) width, maintaining identical PCB footprint and surface mount compatibility. No layout modifications are required when substituting between these parts.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All listed substitutes carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

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