CY8C20234-12SXI

Overview

The Infineon CY8C20234-12SXI is an 8-bit microcontroller based on the PSoC architecture, housed in a 16-pin SOIC package. It features an M8C processor core with speeds up to 12 MHz and operates within a voltage range of 2.4 V to 5.25 V across an industrial temperature range of -40 °C to +85 °C. The device includes 8 KB of Flash program storage and 512 Bytes of SRAM data memory. Key peripherals include a low power CapSense block for capacitive sensing, I2C slave and SPI master-slave interfaces, and two analog comparators.

Feature Summary

• Integrates a dedicated CapSense analog system for configurable capacitive sensing applications without external components.
• Features a Harvard-architecture M8C processor core supporting high-speed operation at low power consumption.
• Provides flexible programmable pin configurations allowing GPIOs to serve as digital inputs/outputs or analog multiplexer inputs.
• Includes integrated system resources such as low voltage detection, power-on reset, and an internal 1.8 V reference.

Applications

• Capacitive touch sensing interfaces including buttons, sliders, and proximity sensors
• Low-power embedded control systems requiring mixed-signal capabilities
• Industrial monitoring devices operating in wide temperature environments
• Communication gateways utilizing I2C or SPI protocols

Procurement Notes

Verify the specific ordering suffix matches the required package type and speed grade. Confirm RoHS compliance status through official datasheets. Ensure development tools like PSoC Designer are compatible with the selected device family. Check for any discontinuation notices from Infineon regarding legacy PSoC 1 products before finalizing procurement plans.

Selection Notes

Select this component when a single-chip solution combining MCU processing with analog signal conditioning and capacitive sensing is required. The CY8C20234 variant specifically offers sufficient I/O count for moderate complexity designs. Consider the 12 MHz clock speed limit against application timing requirements. Evaluate the 16-pin SOIC package constraints for PCB layout space availability.

Part Context

This part belongs to the CY8C20x34 series of PSoC Programmable System-on-Chips originally developed by Cypress Semiconductor, now part of Infineon Technologies. The series is designed to replace multiple traditional discrete components with a single programmable chip. It utilizes the M8C core and supports dynamic reconfiguration of analog and digital blocks via the PSoC Designer IDE.

Replacement Considerations

Consult the official Infineon product selector guides for direct functional equivalents within the CY8C20x34 family. Verify pin compatibility and memory sizes when considering cross-references. No public substitute part numbers are confirmed in the provided documentation.