N74F245D,623 Equivalent & Substitute Parts

Part Overview

The N74F245D,623 is a non-inverting transceiver logic IC manufactured by NXP Semiconductors in the 74F series. This component functions as a 1-element, 8-bit per element transceiver with 3-state output capability, designed for 5.5V operation in surface mount 20-SOIC packaging. The part is currently classified as obsolete, making identification of functional equivalents and direct substitutes essential for ongoing system support and new design implementations.

Substiute Parts

N74F245D,623

NXP SemiconductorsIn Stock: 1221N74F245D,623 Datasheet

Current PartRFQ

SN74F245DW

Texas InstrumentsIn Stock: 2240SN74F245DW Datasheet

DirectRFQ

SN74F245DWR

Texas InstrumentsIn Stock: 2571SN74F245DWR Datasheet

DirectRFQ

SN74BCT245DWR

Texas InstrumentsIn Stock: 1936SN74BCT245DWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the N74F245D,623 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: 3mA, 24mA; 15mA, 64mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: 0°C ~ 70°C (TA)
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Substitute parts are classified into two categories:

Direct Manufacturer Substitutes (SN74F245DW, SN74F245DWR): Texas Instruments parts maintaining identical 74F series specifications and electrical characteristics. These differ only in packaging format (Tube vs. Tape & Reel) and product status.

Parametric Equivalent (SN74BCT245DWR): Texas Instruments part from the 74BCT series that maintains all critical electrical and mechanical parameters while operating from a different logic family. This part meets all functional requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

SN74F245DWR is the primary recommendation. This Texas Instruments part maintains full 74F series compatibility with the original N74F245D,623, carries Active product status, and is available in Tape & Reel packaging suitable for automated assembly. ROHS3 compliance and MSL 1 rating ensure regulatory and environmental compatibility.

For Existing Inventory Management:

SN74F245DW provides an alternative from Texas Instruments with identical electrical specifications. This part carries Last Time Buy status, indicating limited future availability. Selection should account for long-term supply chain requirements.

For Extended Lifecycle Support:

SN74BCT245DWR serves as a parametric equivalent from the 74BCT logic family. All critical electrical parameters, package dimensions, and operating conditions remain identical to the original part. Active product status and established supply chain availability support extended system lifecycles. The 74BCT series represents a modern alternative within the same functional class.

All substitute options maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can SN74F245DWR directly replace N74F245D,623 in existing designs?

A: Yes. SN74F245DWR maintains identical electrical specifications, output characteristics, supply voltage range, operating temperature range, and 20-SOIC package dimensions. No circuit modifications are required.

Q: What is the difference between SN74F245DW and SN74F245DWR?

A: Both parts are electrically identical 74F series transceivers from Texas Instruments. The difference is packaging format: SN74F245DW is supplied in Tube packaging, while SN74F245DWR is supplied in Tape & Reel format. Selection depends on assembly process requirements. SN74F245DWR carries Active status; SN74F245DW is Last Time Buy.

Q: Is SN74BCT245DWR a suitable substitute for the original NXP part?

A: Yes. SN74BCT245DWR is a parametric equivalent that maintains all critical electrical and mechanical specifications. The 74BCT series represents a different logic family but delivers identical performance within the specified operating parameters. This part carries Active status and represents a long-term supply alternative.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. N74F245D,623, SN74F245DW, SN74F245DWR, and SN74BCT245DWR are all ROHS3 compliant with MSL 1 rating, meeting current environmental and regulatory requirements.

Q: What is the significance of the N74F245D,623 being classified as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by NXP Semiconductors. Existing inventory may be available through authorized distributors, but new production is not available. Substitution with active alternatives (SN74F245DWR or SN74BCT245DWR) is recommended for new designs and long-term system support.

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

A: Yes. All substitute parts use identical 20-SOIC package dimensions (0.295", 7.50mm Width) and pin configurations. PCB footprints and assembly processes require no modification.