CY8C24423A4-24LTXI

Overview

The CY8C24423A-24LTXI is an 8-bit microcontroller from the Infineon PSoC 1 family, utilizing the M8C processor core. It features 4 KB of Flash program storage and 256 bytes of SRAM data memory. The device supports a maximum clock frequency of 24 MHz and includes up to 24 I/O pins. Key specifications include a 14-bit ADC resolution, operating voltage range of 2.4 V to 5.25 V, and an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Configurable analog system with six rail-to-rail PSoC blocks supporting high-resolution ADCs, DACs, and programmable filters.
• Flexible digital architecture with four PSoC blocks enabling custom peripheral creation such as timers, PWMs, and serial interfaces.
• Integrated low-voltage detection and power-on-reset circuits for robust system supervision without external components.

Applications

• Battery-powered devices utilizing on-chip switch mode pump for extended operation.
• Industrial control systems requiring precise analog signal conditioning and digital processing.
• Consumer electronics needing flexible GPIO configurations and programmable logic.

Procurement Notes

Verify the exact part number suffix against official Infineon documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints, specifically the QFN-32 package dimensions. Confirm that the design supports the required voltage levels and current drive capabilities specified in the electrical characteristics section of the datasheet.

Selection Notes

Select this component when a single-chip solution is needed to replace multiple discrete MCU and analog components. The PSoC architecture allows for hardware customization via drag-and-drop configuration in PSoC Designer. Consider the available Flash and SRAM sizes relative to application firmware requirements before finalizing the selection.

Part Context

This device belongs to the CY8C24x23A series within the broader PSoC 1 portfolio. It is derived from the CY8C24x23 device family, offering optimized low-power and low-voltage performance starting at 2.4 V. The series is designed for applications requiring mixed-signal processing capabilities in a compact form factor.

Replacement Considerations

Direct substitutes within the same family include CY8C24123A and CY8C24223A, which share similar architectural resources but may differ in pin count or specific peripheral availability. Verify pinout compatibility and software register mapping before implementing any cross-model replacement.