SN74ABT623PW Equivalent & Substitute Parts

Part Overview

The SN74ABT623PW is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. It features 1 element with 8 bits per element and 3-state output capability, housed in a 20-TSSOP surface mount package. The device operates across a 4.5V to 5.5V supply voltage range and supports industrial temperature specifications from -40°C to 85°C.

This part is classified as obsolete, making identification of equivalent substitute components essential for ongoing system support, design updates, and procurement continuity. The SN74ABT245BPW serves as a parametric equivalent with identical electrical and mechanical specifications but maintains active product status.

Substiute Parts

SN74ABT623PW

Texas InstrumentsIn Stock: 746SN74ABT623PW Datasheet

Current PartRFQ

SN74ABT245BPW

Texas InstrumentsIn Stock: 2156SN74ABT245BPW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN74ABT245BPW qualifies as a parametric equivalent to the SN74ABT623PW based on strict alignment of the following critical parameters:

• Logic Type: Both are non-inverting transceivers
• Element and Bit Configuration: Identical 1 element, 8 bits per element
• Output Architecture: Both feature 3-state output capability
• Current Specifications: Matching output high (32mA) and output low (64mA) ratings
• Supply Voltage Range: Identical 4.5V to 5.5V operating window
• Temperature Range: Both support -40°C to 85°C operation
• Package Specification: Identical 20-TSSOP surface mount package with 0.173" width (4.40mm)
• Compliance Standards: Both ROHS3 compliant with MSL 1 rating

The primary distinction is product status: SN74ABT623PW is obsolete, while SN74ABT245BPW maintains active status with higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74ABT245BPW is the direct parametric substitute for the SN74ABT623PW. Both components share identical electrical specifications, mechanical dimensions, and compliance certifications. The SN74ABT245BPW maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. Current inventory levels for the SN74ABT245BPW (2100 units) exceed those of the obsolete SN74ABT623PW (652 units), supporting procurement reliability.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements. The MSL 1 rating for both components indicates unlimited moisture sensitivity protection, suitable for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can the SN74ABT245BPW directly replace the SN74ABT623PW in existing designs?

A: Yes. The SN74ABT245BPW is a parametric equivalent with identical electrical characteristics, output drive capabilities, supply voltage range, temperature specifications, and 20-TSSOP package dimensions. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The SN74ABT623PW is classified as obsolete. The SN74ABT245BPW maintains active product status with Texas Instruments, ensuring continued availability and manufacturing support.

Q: Are the package dimensions identical?

A: Yes. Both components use the 20-TSSOP package with 0.173" width (4.40mm). PCB footprints and assembly processes remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74ABT623PW and SN74ABT245BPW are ROHS3 compliant, REACH unaffected, and carry MSL 1 moisture sensitivity ratings.

Q: What are the output drive specifications?

A: Both parts deliver 32mA output high current and 64mA output low current, supporting identical load driving capabilities across the 4.5V to 5.5V supply range.

Q: Is inventory availability a consideration?

A: The SN74ABT245BPW has significantly higher inventory availability (2100 units) compared to the obsolete SN74ABT623PW (652 units), supporting procurement continuity and lead time reduction.