74F245SJX Equivalent & Substitute Parts

Part Overview

The 74F245SJX is a non-inverting transceiver logic IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates within a 4.5V to 5.5V supply voltage range and is rated for 0°C to 70°C operating temperature. Surface mount packaging in 20-SOP configuration provides integration into modern PCB designs.

Substiute Parts

74F245SJX

onsemiIn Stock: 381274F245SJX Datasheet

Current PartRFQ

SN74F245DW

Texas InstrumentsIn Stock: 2240SN74F245DW Datasheet

SimilarRFQ

SN74F245DWR

Texas InstrumentsIn Stock: 2571SN74F245DWR Datasheet

SimilarRFQ

SN74BCT245NSR

Texas InstrumentsIn Stock: 3977SN74BCT245NSR Datasheet

Parametric EquivalentRFQ

SN74F245NSR

Texas InstrumentsIn Stock: 2086SN74F245NSR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74F245SJX is determined by strict alignment of the following critical parameters: logic type (non-inverting transceiver), element and bit configuration (1 element, 8 bits per element), output type (3-state), output current specifications (3mA/24mA and 15mA/64mA), supply voltage range (4.5V ~ 5.5V), and operating temperature range (0°C ~ 70°C). Package and case dimensions are secondary considerations that may vary within acceptable mechanical constraints for surface mount applications.

The substitute parts are categorized as follows:

Direct Substitutes (Same Base Product Number - 74F245): SN74F245DW and SN74F245DWR from Texas Instruments maintain identical electrical specifications and differ only in packaging format (tube versus tape & reel) and product status.

Parametric Equivalents (Alternative Series - 74BCT): SN74BCT245NSR represents a parametric equivalent from the 74BCT logic family, offering identical electrical performance with enhanced compatibility characteristics while maintaining the same functional specifications.

Cross-Series Compatibility: SN74F245NSR provides compatibility across packaging variants within the 74F series, supporting design flexibility for different procurement and assembly requirements.

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, SN74F245DWR is the primary recommended substitute. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. It carries ROHS3 compliance certification and identical electrical specifications to the 74F245SJX.

SN74F245DW serves as an alternative when tape & reel packaging is not required, though its Last Time Buy status indicates limited future availability.

SN74BCT245NSR provides a parametric equivalent option from the 74BCT logic family, offering active product status and full electrical compatibility. This part is suitable for applications where the 74BCT series is already established in the design ecosystem.

SN74F245NSR offers compatibility within the 74F series for packaging variant requirements, with active product status and ROHS3 compliance.

All substitute parts maintain identical electrical performance, output current ratings, supply voltage specifications, and operating temperature ranges as the original 74F245SJX.

Frequently Asked Questions (FAQ)

Q: Can SN74F245DWR directly replace 74F245SJX in existing designs?

A: Yes. SN74F245DWR maintains identical electrical specifications including logic type, element configuration, output type, current ratings, supply voltage, and operating temperature. The primary difference is packaging format (tape & reel versus tube) and manufacturer (Texas Instruments versus onsemi). PCB footprint compatibility depends on specific package dimensions; verify mechanical specifications for your application.

Q: What is the difference between SN74F245DW and SN74F245DWR?

A: Both parts are electrically identical. SN74F245DW is supplied in tube packaging, while SN74F245DWR is supplied in tape & reel format. SN74F245DWR maintains active product status, whereas SN74F245DW is designated Last Time Buy. For new procurement, SN74F245DWR is preferred.

Q: Is SN74BCT245NSR a suitable substitute for 74F245SJX?

A: Yes. SN74BCT245NSR is a parametric equivalent offering identical electrical performance across all critical parameters: logic type, element and bit configuration, output type, current ratings, supply voltage, and operating temperature. The 74BCT series represents an enhanced logic family variant. Active product status and ROHS3 compliance support long-term design continuity.

Q: Are there package compatibility considerations when substituting these parts?

A: Yes. While all parts are surface mount devices, package case dimensions vary. The 74F245SJX uses 20-SOIC (0.209", 5.30mm width), while SN74F245DW and SN74F245DWR use 20-SOIC (0.295", 7.50mm width). SN74BCT245NSR and SN74F245NSR use 20-SOIC (0.209", 5.30mm width). Verify PCB footprint compatibility before design implementation.

Q: What compliance certifications apply to substitute parts?

A: All substitute parts carry ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level is 1 (Unlimited) across all parts, indicating no special moisture handling requirements during storage or assembly.

Q: Why is the 74F245SJX listed as obsolete?

A: The 74F245SJX from onsemi has reached end-of-life status. Texas Instruments maintains active production of functionally equivalent parts (SN74F245DWR, SN74BCT245NSR, SN74F245NSR), ensuring design continuity and supply availability for applications requiring non-inverting transceiver logic with 8-bit, 3-state output capability.