R8A66156SP#D1

Overview

The R8A66156SP#D1 is a 24-bit I/O expander with an integrated LED drive function manufactured by Renesas Electronics Corporation. This component facilitates the expansion of general-purpose input and output lines, allowing for efficient control of multiple peripherals through a serial interface. It combines standard I/O expansion capabilities with direct LED driving functionality, reducing the need for additional driver components in embedded systems.

Feature Summary

• Integrates 24-bit general-purpose I/O expansion with dedicated LED drive circuitry
• Simplifies system design by combining peripheral control and display indication functions

Applications

• Embedded systems requiring expanded I/O ports
• Consumer electronics with status indication requirements
• Industrial control interfaces needing peripheral management

Procurement Notes

Verify the specific suffix D1 against official Renesas documentation to confirm package type and temperature grade. Ensure compatibility with existing serial communication protocols used in the target application before procurement.

Selection Notes

Select this component when both extensive I/O expansion and direct LED driving are required within a single device. Evaluate pin count requirements and current sourcing capabilities against the specific load conditions of the connected LEDs and peripherals.

Part Context

This part belongs to the family of I/O expanders designed for managing peripheral connections in compact electronic designs. It serves as a bridge between microcontrollers and external devices, offering a cost-effective solution for systems with limited processor pins.

Replacement Considerations

Consult official cross-reference lists for compatible alternatives. Verify that any substitute maintains identical pinout configuration and electrical characteristics to ensure seamless integration without hardware modifications.