CY8C26643-24AXI

Overview

The CY8C26643-24AXI is an 8-bit microcontroller from the PSoC™ family, utilizing the M8C core. It features 16 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 3.0 V to 5.25 V. 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-SSOP package.

Feature Summary

• Configurable mixed-signal array with user-programmable analog and digital peripheral blocks
• Integrated M8C processor with Harvard architecture and fast multiply/accumulate capability
• Flexible on-chip memory with Flash program storage and EEPROM emulation support
• Precision programmable clocking with internal oscillators and external crystal options

Applications

• Consumer electronics requiring mixed-signal processing
• Industrial equipment control systems
• Communications devices with serial interface requirements
• Computation modules needing programmable logic and analog conversion

Procurement Notes

Verify silicon revision D compatibility when sourcing this component. Confirm that the specific ordering suffix matches the required package type and temperature rating. Ensure development tools such as PSoC Designer are available for configuration. Check RoHS compliance status against current environmental regulations before finalizing procurement plans.

Selection Notes

Select this part for designs requiring high configurability of analog and digital functions within a single chip. Consider the 24 MHz operating speed and 3.0 V to 5.25 V supply range for system power budgeting. Evaluate the 48-SSOP package constraints for PCB layout. Note that this device family is not recommended for new designs; newer alternatives should be evaluated for long-term availability.

Part Context

This component belongs to the CY8C26xxx series of Programmable System-on-Chip (PSoC) devices manufactured by Infineon Technologies (formerly Cypress Semiconductor). These devices integrate a CPU, Flash memory, SRAM, and configurable analog/digital blocks. The CY8C26643 variant specifically offers 16 kB of Flash memory and 44 I/O pins, targeting applications needing flexible mixed-signal integration.

Replacement Considerations

The datasheet explicitly states that this device family is Not Recommended for New Designs and recommends using the CY8C27xxx series instead. No direct substitute part numbers are provided in the source material.