SN74HC245DWR Equivalent & Substitute Parts

Part Overview

The SN74HC245DWR is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. This 20-SOIC surface mount device functions as a 1-element, 8-bit per element transceiver with 3-state output capability, operating across a 2V to 6V supply voltage range. The part is classified as Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to address inventory availability, packaging preferences, temperature range requirements, and automotive qualification needs while maintaining functional and electrical compatibility.

Substiute Parts

SN74HC245DWR

Texas InstrumentsIn Stock: 131463SN74HC245DWR Datasheet

Current PartRFQ

74HC245D,653

Nexperia USA Inc.In Stock: 228174HC245D,653 Datasheet

MFR RecommendedRFQ

74HC245D-Q100J

Nexperia USA Inc.In Stock: 303674HC245D-Q100J Datasheet

MFR RecommendedRFQ

MC74HC245ADWG

onsemiIn Stock: 1400MC74HC245ADWG Datasheet

MFR RecommendedRFQ

MC74HC245ADWR2G

onsemiIn Stock: 2945MC74HC245ADWR2G Datasheet

MFR RecommendedRFQ

MM74HC245AWM

onsemiIn Stock: 1911MM74HC245AWM Datasheet

MFR RecommendedRFQ

MM74HC245AWMX

onsemiIn Stock: 1882MM74HC245AWMX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HC245DWR are qualified based on the following criteria:

Functional Equivalence: All substitute parts maintain identical logic type (Transceiver, Non-Inverting), element count (1), bit width (8 bits per element), and output configuration (3-State).

Electrical Compatibility: All substitutes operate within the same supply voltage range (2V ~ 6V) and deliver identical output current specifications (7.8mA high and low).

Package Compatibility: Substitutes are available in 20-SOIC or 20-SO package configurations, both measuring 0.295" (7.50mm width), ensuring mechanical and electrical pin compatibility.

Compliance Standards: All substitutes maintain RoHS3 compliance and EAR99 export classification.

Differentiation Factors: Substitutes vary by manufacturer, operating temperature range, packaging format (Cut Tape, Tape & Reel, Tube), moisture sensitivity level, and automotive qualification status. These variations allow selection based on specific application requirements without compromising core functionality.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: The 74HC245D,653 from Nexperia provides direct functional substitution with extended operating temperature range (-40°C ~ 125°C) and identical MSL rating, suitable for general-purpose logic applications requiring broader thermal performance.

For Automotive Applications: The 74HC245D-Q100J from Nexperia is qualified to AEC-Q100 automotive standards with extended temperature range (-40°C ~ 125°C), appropriate for automotive-grade circuit designs requiring formal qualification documentation.

For Extended Temperature Range Requirements: The MC74HC245ADWG and MC74HC245ADWR2G from onsemi operate across -55°C ~ 125°C, accommodating extreme environmental conditions beyond standard industrial specifications.

For Packaging Format Flexibility: Nexperia and onsemi substitutes are available in multiple packaging formats (Cut Tape, Tape & Reel, Tube) to align with production line requirements and inventory management strategies.

For Moisture Sensitivity Considerations: The SN74HC245DWR and 74HC245D,653 maintain MSL 1 (Unlimited) rating, eliminating bake-out requirements. onsemi alternatives carry MSL 3 (168 Hours), requiring controlled storage and handling protocols.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SN74HC245DWR with any of the listed alternatives without circuit modification?

A: Yes. All listed substitutes maintain identical logic functionality, pin configuration, electrical output characteristics (7.8mA), and supply voltage range (2V ~ 6V). Direct pin-for-pin substitution is electrically valid. Verify packaging format and MSL requirements for your production process.

Q: What is the difference between 20-SOIC and 20-SO package designations?

A: Both designations refer to 20-pin Small Outline Integrated Circuit packages with 0.295" (7.50mm) width. The terminology varies by manufacturer but represents mechanically and electrically compatible packages suitable for the same PCB footprint.

Q: Why do some substitutes have extended operating temperature ranges (-55°C ~ 125°C)?

A: Extended temperature range variants from onsemi (MC74HC245ADWG, MC74HC245ADWR2G) are designed for applications requiring operation in extreme thermal environments. Standard variants operate -40°C ~ 85°C. Select based on your application's actual temperature requirements.

Q: What does MSL 1 (Unlimited) versus MSL 3 (168 Hours) mean for component handling?

A: MSL 1 (Unlimited) components require no moisture bake-out prior to soldering. MSL 3 (168 Hours) components must be stored in dry conditions and baked at specified temperature and duration before soldering if exposed to ambient humidity. Verify your manufacturing process compatibility.

Q: Is the 74HC245D-Q100J suitable for non-automotive applications?

A: Yes. AEC-Q100 qualification indicates automotive-grade reliability testing and is acceptable for any application. The extended temperature range (-40°C ~ 125°C) and proven reliability make it suitable for industrial and commercial use.

Q: What packaging format should I select for high-volume production?

A: Tape & Reel (TR) format is standard for automated assembly lines. Cut Tape (CT) and Tube formats are suitable for lower-volume or manual assembly processes. Verify your production equipment compatibility.