SN74ABTH245PWR Equivalent & Substitute Parts

Part Overview

The SN74ABTH245PWR is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This device operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-TSSOP surface mount package. The part maintains Active product status and is fully RoHS3 compliant. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the same package footprint and functional classification.

Substiute Parts

SN74ABTH245PWR

Texas InstrumentsIn Stock: 2831SN74ABTH245PWR Datasheet

Current PartRFQ

SN74ABT245BPWR

Texas InstrumentsIn Stock: 2210SN74ABT245BPWR Datasheet

Parametric EquivalentRFQ

74ABT245PW,118

Nexperia USA Inc.In Stock: 225674ABT245PW,118 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74ABTH245PWR are qualified based on strict parametric equivalence. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current Ratings: 32mA (High), 64mA (Low)
• Supply Voltage Range: 4.5V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C
• Package: 20-TSSOP with identical 0.173" (4.40mm) width
• Surface Mount configuration
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

All identified substitutes maintain these exact specifications. Variations in manufacturer, base series designation (74ABTH vs. 74ABT), or packaging format (Tape & Reel vs. Cut Tape) do not affect functional or electrical compatibility when parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SN74ABTH245PWR, SN74ABT245BPWR, and 74ABT245PW,118—are functionally equivalent and suitable for direct substitution in applications requiring an 8-bit non-inverting transceiver with 3-state output. Selection between these parts should be based on:

Availability and Lead Time: Inventory levels vary across manufacturers and packaging formats. SN74ABTH245PWR (2740 Pcs), SN74ABT245BPWR (2100 Pcs), and 74ABT245PW,118 (2155 Pcs) are all in stock.

Packaging Format: SN74ABTH245PWR and 74ABT245PW,118 are supplied in Tape & Reel (TR) format, while SN74ABT245BPWR is available in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly process requirements.

Compliance Certification: All parts maintain ROHS3 compliance, REACH Unaffected status, and identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, ensuring regulatory compatibility across supply chain applications.

Manufacturer Preference: Texas Instruments (SN74ABTH245PWR and SN74ABT245BPWR) and Nexperia USA Inc. (74ABT245PW,118) are established manufacturers with equivalent product reliability and support infrastructure.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT245BPWR replace SN74ABTH245PWR in existing designs?

A: Yes. Both parts are parametrically equivalent across all critical electrical and mechanical specifications. The difference in series designation (74ABTH vs. 74ABT) and packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) does not affect functional compatibility. PCB layout and assembly processes remain unchanged.

Q: Are there differences in output drive capability between these substitutes?

A: No. All three parts deliver identical output current specifications: 32mA (High) and 64mA (Low). Load driving capability is equivalent across all substitutes.

Q: Does the 20-TSSOP package footprint remain identical across all substitutes?

A: Yes. All parts use the 20-TSSOP package with 0.173" (4.40mm) width. PCB footprints, solder pad layouts, and component placement are directly compatible without modification.

Q: What is the significance of the MSL 1 (Unlimited) rating?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts have unlimited shelf life under standard storage conditions and do not require special moisture control during handling or storage, simplifying supply chain logistics.

Q: Are all substitutes RoHS3 compliant?

A: Yes. SN74ABTH245PWR, SN74ABT245BPWR, and 74ABT245PW,118 are all ROHS3 compliant and REACH Unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. All substitutes maintain the same operating temperature range of -40°C to 85°C (TA). Thermal performance and reliability are equivalent across all three parts within this specification.