N74F245DB,118 Equivalent & Substitute Parts

Part Overview

The N74F245DB,118 is a non-inverting transceiver logic IC manufactured by NXP Semiconductors, designed for 8-bit bidirectional data transfer with 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-SSOP surface mount package.

The N74F245DB,118 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

N74F245DB,118

NXP SemiconductorsIn Stock: 1031N74F245DB,118 Datasheet

Current PartRFQ

SN74BCT245DBR

Texas InstrumentsIn Stock: 983SN74BCT245DBR Datasheet

Parametric EquivalentRFQ

SN74F245DBR

Texas InstrumentsIn Stock: 3299SN74F245DBR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the N74F245DB,118 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical 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)

Mechanical Parameters:

• Package / Case: 20-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

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

Substitute parts must match all electrical and mechanical parameters exactly. Series designation (74F, 74BCT) may vary provided the base functional characteristics remain identical.

Parameter Comparison

Engineering Selection Recommendations

SN74F245DBR (Texas Instruments) is the primary substitute for the N74F245DB,118. Both components share identical series designation (74F) and are functionally equivalent across all electrical and mechanical parameters. The SN74F245DBR maintains active product status, ensuring long-term availability and supply chain stability. This part is ROHS3 compliant and carries MSL Level 1 rating, matching the original component's compliance profile.

SN74BCT245DBR (Texas Instruments) is a secondary substitute option. While it belongs to the 74BCT series rather than 74F, it satisfies all specified electrical and mechanical requirements. The SN74BCT245DBR is also active in production status and maintains equivalent ROHS3 compliance and MSL Level 1 rating. Selection between SN74F245DBR and SN74BCT245DBR depends on design-specific timing and performance characteristics not detailed in the provided parameters.

Both substitute parts are available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SN74F245DBR directly replace the N74F245DB,118 without circuit modifications?

A: Yes. The SN74F245DBR matches all electrical parameters (supply voltage, output current, operating temperature range) and mechanical specifications (20-SSOP package, surface mount configuration). No circuit modifications are required for direct substitution.

Q: What is the difference between the 74F and 74BCT series options?

A: Both series meet the specified electrical and mechanical parameters provided. The 74F series represents the original fast logic family, while 74BCT represents a BiCMOS variant. Selection between these series should be based on design-specific timing requirements and performance characteristics not included in this reference.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both SN74F245DBR and SN74BCT245DBR are ROHS3 compliant, matching the original N74F245DB,118 compliance status.

Q: What is the significance of the 20-SSOP package specification?

A: The 20-SSOP (Shrink Small Outline Package) with 0.209" width and 5.30mm width is a surface mount package standard. All substitute parts use this identical package, ensuring PCB footprint compatibility and automated assembly compatibility without layout modifications.

Q: Does the MSL Level 1 rating affect handling or storage?

A: MSL Level 1 indicates unlimited moisture sensitivity, meaning the component does not require special moisture control during storage or handling. This specification is identical across the original part and all substitutes.

Q: Why is the original N74F245DB,118 marked as obsolete?

A: Obsolete status indicates the manufacturer (NXP Semiconductors) has discontinued production. The substitute parts from Texas Instruments (SN74F245DBR and SN74BCT245DBR) remain in active production, providing continued availability for new designs and legacy system support.