CY8C24423A-24LTXI

Overview

The CY8C24423A-24LTXI is an 8-bit microcontroller from the Infineon PSoC 1 family, featuring the M8C processor core with a maximum clock frequency of 24 MHz. It integrates 4 KB of Flash program memory and 256 bytes of SRAM data storage. The device provides up to 24 I/O pins and includes six analog PSoC blocks supporting ADCs up to 14-bit resolution. Operating voltage ranges from 2.4 V to 5.25 V, with an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Configurable analog and digital system-on-chip architecture allowing custom peripheral creation
• M8C Harvard-architecture processor with integrated multiply-accumulate unit
• Flexible GPIO drive modes including open-drain, strong, and high-Z configurations
• On-chip switch-mode pump enabling operation down to 1.0 V

Applications

• Battery-powered devices requiring low-voltage operation via switch-mode pump
• Applications needing precise analog signal conditioning with configurable filters and amplifiers
• Systems requiring flexible digital communication interfaces like UART, SPI, or I2C
• Industrial control environments operating within extended temperature ranges

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 for hardware configuration. Check for any end-of-life notifications or alternative component recommendations from Infineon before finalizing procurement plans.

Selection Notes

Select this component when a single chip must replace multiple discrete MCU and analog components. The PSoC architecture allows dynamic reconfiguration of peripherals, reducing bill-of-materials complexity. Consider the 24 MHz processing speed and available I/O count relative to application requirements. Evaluate the need for high-resolution ADCs and programmable gain amplifiers inherent in the analog block array.

Part Context

This part belongs to the CY8C24x23A series of PSoC 1 devices. It shares the same core architecture as the CY8C24123A and CY8C24223A but differs in pin count and I/O availability. The series is designed for cost-sensitive applications requiring mixed-signal capabilities in a compact form factor.

Replacement Considerations

Direct substitutes include other members of the CY8C24x23A family such as CY8C24123A or CY8C24223A, provided pinout and resource requirements match. Verify that any replacement maintains the required number of analog blocks and digital I/O lines.