SN74BCT623DW Equivalent & Substitute Parts

Part Overview

The SN74BCT623DW is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This device operates within a 4.5V to 5.5V supply voltage range and is housed in a 20-SOIC surface mount package.

The SN74BCT623DW carries an Obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement planning. Substitute parts must maintain identical electrical performance characteristics and package specifications to ensure direct compatibility in existing circuit designs.

Substiute Parts

SN74BCT623DW

Texas InstrumentsIn Stock: 692SN74BCT623DW Datasheet

Current PartRFQ

SN74BCT245DW

Texas InstrumentsIn Stock: 1322SN74BCT245DW Datasheet

Parametric EquivalentRFQ

SN74F245DW

Texas InstrumentsIn Stock: 2240SN74F245DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74BCT623DW are identified based on strict parametric equivalence across the following critical criteria:

Electrical Equivalence Parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current ratings (Output High/Low): 3mA, 24mA; 15mA, 64mA
• Voltage Supply Range: 4.5V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C (TA)

Mechanical Equivalence Parameters:

• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 20-SOIC

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

All identified substitute parts maintain identical electrical performance specifications and physical package dimensions, enabling direct functional replacement in circuit designs originally specified for the SN74BCT623DW.

Parameter Comparison

Engineering Selection Recommendations

Both SN74BCT245DW and SN74F245DW meet all parametric requirements for direct substitution with the SN74BCT623DW. Selection between alternatives should be based on product lifecycle status and availability:

SN74BCT245DW carries Last Time Buy status with 1235 units in stock. This part maintains the same 74BCT logic series as the original SN74BCT623DW, ensuring consistent electrical behavior and timing characteristics within the 74BCT family.

SN74F245DW carries Last Time Buy status with 2184 units in stock. This part operates within the 74F logic series, which maintains identical electrical performance parameters specified for this application while offering higher inventory availability.

Both substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 moisture sensitivity ratings. Selection may be determined by procurement lead times, inventory requirements, and existing supply chain relationships with Texas Instruments logic device families.

Frequently Asked Questions (FAQ)

Q: Can SN74BCT245DW directly replace SN74BCT623DW in existing designs?

A: Yes. The SN74BCT245DW maintains identical electrical specifications including 8-bit transceiver configuration, 3-state output capability, 4.5V to 5.5V supply voltage range, and 20-SOIC package dimensions. No circuit modifications are required.

Q: What is the difference between SN74BCT245DW and SN74F245DW?

A: Both parts meet identical electrical performance requirements for this application. The primary difference is logic series designation: SN74BCT245DW belongs to the 74BCT family, while SN74F245DW belongs to the 74F family. Both maintain the same output current ratings, supply voltage range, and operating temperature specifications.

Q: Are package dimensions identical across all three parts?

A: Yes. All three parts use the 20-SOIC (0.295", 7.50mm Width) surface mount package. PCB footprints and assembly processes remain unchanged when substituting between these parts.

Q: Do compliance certifications differ between the main part and substitutes?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 moisture sensitivity ratings. Compliance documentation requirements remain consistent across substitutions.

Q: Which substitute part should be selected for new procurement?

A: Both SN74BCT245DW and SN74F245DW are available as Last Time Buy products. Selection should be based on inventory availability, supply chain lead times, and existing relationships with Texas Instruments distribution channels. Both parts provide equivalent functionality and compliance status.