CY8C24423A-24PVXI

Overview

The CY8C24423A-24PVXI 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 data storage. 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 timers, counters, and communication interfaces like I2C, SPI, and UART. The component is housed in a 28-pin SSOP package and functions across an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Configurable analog system with six PSoC blocks enabling high-resolution ADCs, DACs, and programmable filters.
• Flexible digital architecture allowing combination of four PSoC blocks into complex peripherals such as PWMs and UARTs.
• Integrated switch-mode pump allows operation at low voltages down to 1.0 V using on-chip power management.
• Supports in-system serial programming and partial flash updates for efficient firmware maintenance.

Applications

• Battery-powered sensor nodes requiring low-voltage operation via switch-mode pump
• Industrial control systems needing configurable analog signal conditioning
• Embedded devices utilizing multiple serial communication protocols

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 recent product change notifications regarding pinout or electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when design requirements demand customizable analog and digital peripheral configurations rather than fixed-function MCUs. It is suitable for applications needing high integration of mixed-signal processing within a compact footprint. Consider the available user modules in PSoC Designer to ensure the required functionality can be implemented within the four digital and six analog block limits.

Part Context

This part belongs to the CY8C24x23A series of the PSoC 1 family, derived from the earlier CY8C24x23 devices. It represents a low-power, low-voltage variant optimized for cost-sensitive embedded applications. The architecture combines a Harvard-architecture CPU with programmable system-on-chip resources, distinguishing it from traditional fixed-peripheral microcontrollers.

Replacement Considerations

Direct substitutes include other members of the CY8C24x23A family with different memory sizes, such as the CY8C24223A or CY8C24123A, provided pinouts and resource counts match the design constraints. Verify that alternative parts maintain the same SSOP-28 package and operating voltage specifications.