CY8C20324-12LQXI

Overview

The CY8C20324-12LQXI is an 8-bit microcontroller from the PSoC 1 family, featuring the M8C core. It integrates 8 KB of flash program storage and 512 bytes of SRAM data memory. The device operates at a maximum clock speed of 12 MHz with an internal main oscillator. It supports a supply voltage range of 2.4 V to 5.25 V and includes CapSense technology for capacitive sensing applications. The component is housed in a 24-pin QFN package.

Feature Summary

• Integrates configurable CapSense hardware for capacitive sensing without external components
• Includes an 8-bit M8C CPU core with up to 12 MHz operation speed
• Provides 8 KB flash program storage and 512 bytes SRAM data storage
• Features internal oscillators including a 6/12 MHz main oscillator and a 32 kHz low-speed oscillator

Applications

• Capacitive touch sensing interfaces
• Proximity sensing applications
• Systems requiring low power consumption
• Devices utilizing I2C or SPI communication protocols

Procurement Notes

Verify the manufacturer designation as Cypress Semiconductor Corp or Infineon Technologies, noting that Infineon acquired Cypress. Confirm the specific ordering suffix matches the required package and temperature grade. Ensure the datasheet revision aligns with current specifications. Check RoHS compliance status if required by your manufacturing standards. Validate the part number against official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when an 8-bit MCU with integrated capacitive sensing capabilities is required. It is suitable for designs needing low external component counts due to internal oscillators. Consider the 24-pin QFN package constraints for PCB layout. Evaluate the 8 KB flash limit against application firmware size requirements. Verify that the 2.4 V to 5.25 V operating voltage range meets system power supply specifications.

Part Context

This device belongs to the PSoC 1 CY8C20xxx series, which combines programmable analog and digital blocks on a single chip. The CY8C20324 variant specifically offers 8 KB of flash memory. It is designed to replace multiple traditional discrete components with a single programmable system-on-chip solution. The architecture allows for flexible peripheral configuration via the PSoC Designer software environment.

Replacement Considerations

Consult the official datasheet for compatible parts within the CY8C20x24 family, such as the CY8C20224 or CY8C20424, depending on pin count and memory requirements. Verify pin compatibility and electrical characteristics before substitution. Ensure any replacement maintains the same package type and operating temperature range.