PI7C9X1170ABLE Equivalent & Substitute Parts

Part Overview

The PI7C9X1170ABLE is an I2C/SPI to UART bridge interface IC manufactured by Diodes Incorporated. This component provides protocol conversion functionality between I2C/SPI serial interfaces and UART communication standards. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. Active alternatives with compatible functional specifications are available to ensure design continuity.

Substiute Parts

PI7C9X1170ABLE

Diodes IncorporatedIn Stock: 882PI7C9X1170ABLE Datasheet

Current PartRFQ

PI7C9X1170ACLEX

Diodes IncorporatedIn Stock: 978PI7C9X1170ACLEX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI7C9X1170ABLE is determined by the following critical parameters:

• Functional Compatibility: Bridge function converting I2C/SPI protocols to UART interface
• Protocol Support: I2C protocol capability
• Supply Voltage Range: Operating voltage specifications that encompass or match the original part's 1.8V, 2.5V, 3.3V requirements
• Operating Temperature Range: -40°C to 85°C operational capability
• Package Compatibility: Physical form factor and pin configuration suitable for circuit board integration
• Regulatory Compliance: ROHS3 compliance and equivalent environmental standards

The PI7C9X1170ACLEX qualifies as a direct substitute based on these parameters. Both parts share the same base product number (PI7C9X1170), identical functional specifications, matching temperature ranges, and equivalent compliance certifications. The substitute maintains the same manufacturer lineage and protocol support while offering an active product status.

Parameter Comparison

Engineering Selection Recommendations

The PI7C9X1170ACLEX is the qualified substitute for the obsolete PI7C9X1170ABLE. Selection of this alternative is supported by:

• Functional Equivalence: Identical I2C/SPI to UART bridge functionality
• Regulatory Alignment: Both parts maintain ROHS3 compliance and equivalent environmental certifications
• Supply Voltage Coverage: The substitute's 1.62V ~ 3.63V range encompasses the original part's specified voltage levels
• Temperature Performance: Matching -40°C to 85°C operating range ensures thermal compatibility
• Active Product Status: The substitute maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Manufacturer Continuity: Both parts originate from Diodes Incorporated, maintaining design lineage and technical support consistency

The primary design consideration is the package transition from 16-TSSOP to 24-TSSOP, which requires PCB layout modification. The increased supply current (6mA versus 3mA) must be evaluated within the context of system power budgets.

Frequently Asked Questions (FAQ)

Q: Can PI7C9X1170ACLEX directly replace PI7C9X1170ABLE without circuit modifications?

A: Functional substitution is supported. However, the package change from 16-TSSOP to 24-TSSOP requires PCB footprint redesign. Pin configuration differences necessitate schematic review to ensure proper signal routing.

Q: What is the significance of the voltage range difference (1.8V, 2.5V, 3.3V versus 1.62V ~ 3.63V)?

A: The substitute provides a continuous voltage range that encompasses the original part's discrete voltage levels. This offers broader operational flexibility while maintaining compatibility with systems designed for the original part's specifications.

Q: Does the increased supply current (6mA versus 3mA) affect system design?

A: Power supply capacity must accommodate the higher current draw. Systems with constrained power budgets require evaluation of the additional 3mA requirement within total system current calculations.

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

A: Both parts maintain identical ROHS3 compliance, MSL rating of 1 (Unlimited), and REACH unaffected status. Regulatory and environmental certifications are equivalent.

Q: Why is the original part classified as obsolete?

A: Obsolescence reflects Diodes Incorporated's product lifecycle management. The PI7C9X1170ACLEX represents the active continuation of this product family, ensuring ongoing design support and manufacturing availability.