CY8C24423A4-24SXI

Overview

The CY8C24423A-24SXI is an 8-bit microcontroller from the Infineon PSoC 1 family, utilizing the M8C core. It features 4 KB of Flash program memory and 256 bytes of SRAM. The device supports a maximum clock frequency of 24 MHz and operates within a voltage range of 2.4 V to 5.25 V. It includes six analog PSoC blocks supporting up to 14-bit ADCs and four digital PSoC blocks for configurable peripherals. The component provides 24 I/O pins and interfaces including I2C, SPI, and UART, housed in a SOIC-28 package.

Feature Summary

• Configurable analog and digital system-on-chip architecture allowing custom peripheral creation
• M8C processor core with Harvard architecture supporting speeds up to 24 MHz
• Integrated switch-mode pump enabling operation down to 1.0 V
• Flexible GPIO drive modes with configurable interrupt capabilities on all pins

Applications

• Consumer electronics requiring low power and mixed-signal processing
• Industrial equipment control systems
• Automotive embedded applications
• Communications interface modules

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with the PSoC Designer development environment. Check for any end-of-life notices or alternative part recommendations from Infineon before finalizing procurement plans.

Selection Notes

Select this component when a programmable mixed-signal solution is required to replace multiple discrete components. The CY8C24423A-24SXI is suitable for designs needing configurable analog front-ends combined with digital control. Consider the 24 I/O count and 4 KB memory limits against application requirements.

Part Context

This part belongs to the CY8C24x23A series of PSoC 1 devices. It is derived from the earlier CY8C24x23 family with enhancements for lower power and voltage operation. The series is designed to minimize design time and board size by integrating CPU, memory, and programmable analog/digital blocks into a single chip.

Replacement Considerations

Direct substitutes include other members of the CY8C24x23A family with different pin counts or memory sizes, such as CY8C24423A variants in PDIP packages. Cross-family migration to PSoC 4 or PSoC 5LP requires significant architectural redesign.