SN74ABT2245DBRG4 Equivalent & Substitute Parts

Part Overview

The SN74ABT2245DBRG4 is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments. It features 1 element with 8 bits per element, 3-state output capability, and operates within a 4.5V to 5.5V supply voltage range. The device is housed in a 20-SSOP surface mount package and is designed for applications requiring bidirectional data transmission with high-speed switching characteristics.

The SN74ABT2245DBRG4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Active alternatives with identical or compatible electrical and mechanical specifications are available from Texas Instruments and Nexperia USA Inc.

Substiute Parts

SN74ABT2245DBRG4

Texas InstrumentsIn Stock: 1082SN74ABT2245DBRG4 Datasheet

Current PartRFQ

SN74ABT2245DBR

Texas InstrumentsIn Stock: 6923SN74ABT2245DBR Datasheet

Parametric EquivalentRFQ

74ABT245PW,118

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74ABT2245DBRG4 are qualified based on the following electrical and mechanical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 32mA, 64mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitutes are grouped into two categories: parametric equivalents with identical package specifications and manufacturer-recommended alternatives with compatible electrical characteristics but different package configurations.

Parameter Comparison

Engineering Selection Recommendations

SN74ABT2245DBR is the primary substitute for the SN74ABT2245DBRG4. Both devices are manufactured by Texas Instruments, share identical electrical specifications, and are housed in the same 20-SSOP package. The SN74ABT2245DBR is currently in active production status, ensuring long-term availability and supply chain continuity. This part is suitable for direct replacement in existing designs without PCB modifications.

74ABT245PW,118 is a manufacturer-recommended alternative from Nexperia USA Inc. It maintains all critical electrical parameters including supply voltage, output current ratings, and operating temperature range. The primary distinction is the package configuration: 20-TSSOP (0.173", 4.40mm Width) versus 20-SSOP (0.209", 5.30mm Width). This package difference requires PCB layout evaluation to confirm footprint compatibility. The 74ABT245PW,118 is in active production status and ROHS3 compliant.

Both substitute parts carry ROHS3 compliance and MSL Level 1 ratings, matching the original device specifications. Selection between these alternatives depends on PCB layout constraints and package footprint availability in the target application.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT2245DBR be used as a direct replacement for SN74ABT2245DBRG4?

A: Yes. Both devices share identical electrical specifications, operating parameters, and package configuration (20-SSOP). The SN74ABT2245DBR is the direct equivalent and requires no design modifications.

Q: What is the primary difference between SN74ABT2245DBR and 74ABT245PW,118?

A: The electrical specifications are equivalent. The key difference is the package: SN74ABT2245DBR uses 20-SSOP (0.209" width), while 74ABT245PW,118 uses 20-TSSOP (0.173" width). PCB footprint compatibility must be verified before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both SN74ABT2245DBR and 74ABT245PW,118 are ROHS3 compliant with MSL Level 1 ratings, matching the original SN74ABT2245DBRG4 specifications.

Q: What is the supply voltage range for these transceiver devices?

A: All listed parts operate within 4.5V to 5.5V supply voltage range with identical output current ratings of 32mA (high) and 64mA (low).

Q: Can these parts be used in applications requiring -40°C to 85°C operating temperature?

A: Yes. All substitute parts are rated for -40°C to 85°C operating temperature range, matching the original device specifications.

Q: Which substitute should be selected for new designs?

A: SN74ABT2245DBR is recommended for new designs due to identical package specifications and active production status. If PCB space constraints favor a narrower package, 74ABT245PW,118 is an alternative provided the 20-TSSOP footprint is compatible with the target layout.