CY8C26443-24PXI

Overview

The CY8C26443-24PXI is an 8-bit microcontroller from the Infineon PSoC™1 family, utilizing the M8C core. It features 16KB of Flash program memory and 256 bytes of SRAM data storage. The device operates at a maximum clock frequency of 24MHz with a supply voltage range of 3.0V to 5.25V. It includes configurable analog and digital peripheral blocks, offering up to 11-bit Delta-Sigma ADC, 8-bit SAR ADC, and 9-bit DAC capabilities. The component provides 44 I/O pins in a 48-pin SSOP package.

Feature Summary

• Configurable mixed-signal array architecture allowing user-defined analog and digital peripheral blocks
• Integrated M8C processor with Harvard architecture supporting fast multiply/accumulate operations
• Flexible on-chip memory with EEPROM emulation capabilities and partial Flash updates
• Precision programmable clocking with internal oscillators and external crystal support

Applications

• General-purpose embedded control systems
• Smart sensing applications requiring capacitive touch or proximity detection
• Human-machine interface (HMI) designs
• Battery-powered devices utilizing low-voltage operation modes

Procurement Notes

Verify silicon revision D compatibility when sourcing this component. Confirm that the specific ordering suffix matches the required pinout and package dimensions. Check for end-of-life status as newer design alternatives are recommended by the manufacturer. Ensure development tools align with the PSoC Designer software version supported by this silicon generation.

Selection Notes

Select this model for applications requiring high configurability of mixed-signal peripherals within a single chip. Consider the 24MHz processing speed and 16KB memory capacity for moderate complexity logic tasks. Evaluate the available I/O count against system interface requirements. Note that this device belongs to a legacy family; assess long-term availability and migration paths to current series if applicable.

Part Context

This component belongs to the PSoC™1 CY8C26xxx series, designed to replace multiple discrete MCU-based components. It integrates a CPU, Flash, SRAM, and programmable analog/digital blocks. The family emphasizes ease of use through graphical configuration tools rather than traditional coding. It represents an early generation of Cypress/Infineon programmable system-on-chip technology.

Replacement Considerations

Official documentation recommends using the CY8C27xxx series for new designs instead of this component.