SN74ABT245BMDBREP Equivalent & Substitute Parts

Part Overview

The SN74ABT245BMDBREP is an active logic transceiver manufactured by Texas Instruments, designed for non-inverting signal transmission with 8-bit per element configuration and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-SSOP package. The part is in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent functional performance can be maintained within the specified electrical and mechanical parameters while accommodating different package geometries or output current ratings.

Substiute Parts

SN74ABT245BMDBREP

Texas InstrumentsIn Stock: 1057SN74ABT245BMDBREP Datasheet

Current PartRFQ

74ABT245PW,118

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ABT245BMDBREP is permissible when the following core parameters remain equivalent:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Voltage - Supply: 4.5V ~ 5.5V
• Base Product Number: 74ABT245
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variations in the following parameters are acceptable within substitution criteria:

• Package / Case geometry (20-SSOP vs. 20-TSSOP)
• Current - Output High, Low ratings (provided minimum requirements are met)
• Operating Temperature range (provided minimum operating range encompasses application requirements)
• Manufacturer identity

The substitute part 74ABT245PW,118 (Nexperia USA Inc.) maintains all core functional parameters while utilizing a 20-TSSOP package with enhanced output current ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the SN74ABT245BMDBREP and 74ABT245PW,118 maintain active production status with full RoHS3 compliance and REACH unaffected certification. Selection between these parts depends on application-specific requirements:

The SN74ABT245BMDBREP is suitable for applications requiring the extended operating temperature range of -55°C to 125°C and the 20-SSOP package footprint.

The 74ABT245PW,118 is suitable for applications where the narrower 20-TSSOP package geometry (4.40mm width versus 5.30mm width) provides board layout advantages and where the enhanced output current ratings (32mA/64mA versus 24mA/32mA) meet or exceed circuit requirements. This substitute is appropriate for applications operating within the -40°C to 85°C temperature range.

Both parts are certified under identical compliance frameworks and carry unlimited moisture sensitivity ratings, eliminating MSL-related constraints in component handling and storage.

Frequently Asked Questions (FAQ)

Q: Can the 74ABT245PW,118 replace the SN74ABT245BMDBREP in all applications?

A: Substitution is valid when the application operating temperature range does not exceed -40°C to 85°C and the circuit board layout accommodates the 20-TSSOP package (4.40mm width). The enhanced output current ratings of the Nexperia part (32mA/64mA) are compatible with circuits designed for the Texas Instruments part (24mA/32mA).

Q: What is the primary difference between the 20-SSOP and 20-TSSOP packages?

A: The 20-TSSOP package is narrower (4.40mm width) compared to the 20-SSOP package (5.30mm width). Both are surface mount packages with identical pin counts and electrical functionality. Package selection depends on board layout constraints and manufacturing capabilities.

Q: Are there compliance or certification differences between these parts?

A: Both parts carry identical RoHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity ratings (MSL 1). No compliance-related constraints differentiate these components.

Q: What output current specifications should I consider when selecting between these parts?

A: The SN74ABT245BMDBREP provides 24mA output high and 32mA output low. The 74ABT245PW,118 provides 32mA output high and 64mA output low. Selection should be based on the maximum current requirements of the driven logic circuits. The Nexperia part supports higher current loads.

Q: Does operating temperature range affect substitution eligibility?

A: Yes. If your application requires operation below -40°C or above 85°C, the SN74ABT245BMDBREP with its -55°C to 125°C range is required. For applications within -40°C to 85°C, both parts are functionally equivalent.