SN74LVC245APWR-P Equivalent & Substitute Parts

Part Overview

The SN74LVC245APWR-P is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. This device functions as a 1-element, 8-bit per element transceiver with 3-state output capability, housed in a 20-TSSOP surface mount package. The part is classified as Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Substitute parts are identified when packaging format differs or when equivalent series variants are required for specific procurement or inventory conditions while maintaining identical electrical and mechanical specifications.

Substiute Parts

SN74LVC245APWR-P

Texas InstrumentsIn Stock: 747SN74LVC245APWR-P Datasheet

Current PartRFQ

SN74LVC245APWT

Texas InstrumentsIn Stock: 5121SN74LVC245APWT Datasheet

Parametric EquivalentRFQ

SN74LVCH245APWT

Texas InstrumentsIn Stock: 1992SN74LVCH245APWT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC245APWR-P are determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 1.65V ~ 3.6V
• Operating Temperature: -40°C ~ 125°C (TA)

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)

Compliance Criteria:

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

Substitutes differ only in packaging format (Tape & Reel vs. Prototype) or series designation (74LVC vs. 74LVCH) while maintaining identical electrical performance and physical footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

SN74LVC245APWT Selection: The SN74LVC245APWT is a direct parametric equivalent to the SN74LVC245APWR-P. Both parts share identical electrical specifications, operating parameters, and physical package dimensions. The primary distinction is packaging format: SN74LVC245APWT is supplied in Tape & Reel format, whereas SN74LVC245APWR-P is supplied as Prototype packaging. Both maintain Active product status and ROHS3 compliance. Selection of SN74LVC245APWT is appropriate when production volume or supply chain requirements necessitate Tape & Reel packaging.

SN74LVCH245APWT Selection: The SN74LVCH245APWT is a parametric equivalent belonging to the 74LVCH series rather than the 74LVC series. All electrical specifications, output characteristics, supply voltage range, operating temperature, and physical package dimensions remain identical to the main part. The SN74LVCH245APWT is supplied in Tape & Reel format. Selection of this variant is appropriate when 74LVCH series designation is required by design specification or when inventory availability of the 74LVCH series is preferred.

All three parts are Active status products with ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC245APWT be used as a direct replacement for SN74LVC245APWR-P?

A: Yes. Both parts are parametrically equivalent with identical electrical specifications, output drive capability (24mA), supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 125°C), and 20-TSSOP package footprint. The difference is packaging format only: Prototype versus Tape & Reel.

Q: What is the difference between SN74LVC245APWT and SN74LVCH245APWT?

A: Both parts are parametrically equivalent in all electrical and mechanical specifications. The difference is series designation: 74LVC versus 74LVCH. Both are manufactured by Texas Instruments, supplied in Tape & Reel format, and maintain identical performance characteristics for transceiver functionality.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 20-TSSOP package with identical pin configuration and footprint dimensions (0.173", 4.40mm Width). PCB layout and schematic connections require no modification when substituting between these parts.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. SN74LVC245APWT and SN74LVCH245APWT are both ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of SN74LVC245APWR-P.

Q: What determines whether a part can substitute for SN74LVC245APWR-P?

A: Substitution is determined by equivalence in: Logic Type (Transceiver, Non-Inverting), Number of Elements (1), Number of Bits per Element (8), Output Type (3-State), Output Current (24mA, 24mA), Supply Voltage (1.65V ~ 3.6V), Operating Temperature (-40°C ~ 125°C), Mounting Type (Surface Mount), and Package (20-TSSOP). Packaging format and series designation do not affect functional substitution.

Q: Can these parts be used interchangeably in production assembly?

A: Yes, provided the assembly process accommodates the packaging format. SN74LVC245APWR-P (Prototype) and the Tape & Reel variants (SN74LVC245APWT, SN74LVCH245APWT) are functionally interchangeable. Tape & Reel format is standard for automated pick-and-place assembly, while Prototype format is typically used for development and low-volume applications.