PM8055B-FGI

I/o Expanders Overview

The PM8055B-FGI is a programmable I/O expander from the Microchip PM8055 family, designed for high-speed serial peripheral interface applications. It supports up to 24 general-purpose I/Os with configurable pull-up and pull-down resistors. The device operates over a wide supply voltage range of 1.7V to 3.6V, ensuring compatibility with various logic levels. It features an interrupt output capability and utilizes a standard serial interface for communication. The component is housed in a compact package suitable for space-constrained designs.

I/o Expanders Feature Summary

• Programmable I/O configuration with selectable drive strength
• Wide operating voltage range supporting low-power systems
• Compact footprint optimized for dense PCB layouts

I/o Expanders Applications

• Industrial control systems requiring additional GPIO
• Consumer electronics with limited pin counts
• Embedded systems needing expanded input/output capabilities

I/o Expanders Procurement Notes

Verify the specific suffix 'FGI' against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure the ordering part number matches the exact revision required for your design. Cross-reference with authorized distributors to confirm current availability and authenticity. Check for any recent lifecycle notices or obsolescence warnings directly from Microchip Technology before finalizing procurement plans.

I/o Expanders Selection Notes

Select this component when a high-density I/O expander with serial interface is needed. Consider the voltage range and package size constraints. Evaluate if the interrupt functionality meets system requirements. Compare against similar devices in the PM8055 family for feature parity. Ensure the serial interface speed aligns with system performance needs.

I/o Expanders Part Context

This part belongs to the PM8055 series of I/O expanders, which are widely used in embedded applications. The series offers various configurations to suit different design requirements. Microchip Technology provides comprehensive documentation for this family, including detailed electrical characteristics and application notes. The PM8055B-FGI represents a specific variant within this lineup.

I/o Expanders Replacement Considerations

Consult Microchip Technology's official cross-reference tools for verified substitutes. Ensure replacement parts match the pinout, voltage range, and interface protocol. Verify package dimensions for mechanical compatibility. Review updated datasheets for any functional differences between original and substitute components.