PI7C9X1172BLEX Equivalent & Substitute Parts

Part Overview

The PI7C9X1172BLEX is an I2C Bridge controller manufactured by Diodes Incorporated, designed to interface I2C/SPI protocols with UART communication. This component operates as a protocol bridge in 28-TSSOP packaging and is classified as Obsolete in product status. Due to its obsolete classification, identifying functionally equivalent active alternatives is essential for ongoing system design and procurement planning.

Substiute Parts

PI7C9X1172BLEX

Diodes IncorporatedIn Stock: 1111PI7C9X1172BLEX Datasheet

Current PartRFQ

PI7C9X1172CLEX

Diodes IncorporatedIn Stock: 1205PI7C9X1172CLEX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI7C9X1172BLEX is determined by the following critical parameters:

• Functional Equivalence: Bridge function converting I2C/SPI protocols to UART interface
• Package Compatibility: 28-TSSOP form factor with identical pin configuration
• Base Product Number: PI7C9X1172 series designation
• Supply Voltage Range: Compatibility with 1.8V, 2.5V, and 3.3V operating levels
• Compliance Standards: ROHS3 compliance and REACH unaffected status
• Manufacturer Consistency: Same manufacturer (Diodes Incorporated) ensures design continuity

The PI7C9X1172CLEX qualifies as a direct substitute based on identical base product number, matching package type, overlapping voltage specifications, and equivalent functional classification.

Parameter Comparison

Engineering Selection Recommendations

The PI7C9X1172CLEX is the designated substitute for the obsolete PI7C9X1172BLEX. Selection is based on:

• Product Status Alignment: The substitute maintains Active status, ensuring continued availability and manufacturer support
• Compliance Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements
• Functional Identity: Identical I2C/SPI to UART bridge functionality with matching 28-TSSOP package
• Voltage Compatibility: The substitute's 1.62V ~ 3.63V supply range encompasses the main part's specified voltage levels (1.8V, 2.5V, 3.3V)
• Packaging Consistency: Identical package type and pin configuration enable direct board-level replacement

Frequently Asked Questions (FAQ)

Q: Can PI7C9X1172CLEX be used as a direct replacement for PI7C9X1172BLEX?

A: Yes. Both parts share identical base product number (PI7C9X1172), function (I2C/SPI to UART bridge), and 28-TSSOP package. The substitute is pin-compatible and functionally equivalent.

Q: What is the primary difference between these two parts?

A: The main difference is product status. PI7C9X1172BLEX is Obsolete, while PI7C9X1172CLEX is Active. The substitute provides specified operating temperature range (-40°C ~ 85°C) and supply current (6mA), which were not documented for the main part.

Q: Are the voltage specifications compatible?

A: Yes. The substitute's supply voltage range (1.62V ~ 3.63V) fully encompasses the main part's specified levels (1.8V, 2.5V, 3.3V), ensuring compatibility across all documented operating conditions.

Q: Does packaging differ between these parts?

A: No. Both parts use 28-TSSOP packaging with identical physical dimensions (0.173", 4.40mm Width), enabling direct board-level substitution without layout modifications.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both PI7C9X1172BLEX and PI7C9X1172CLEX maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

Q: What is the moisture sensitivity level for these components?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.