CY8C20446-24LQXIT

Application Specific Microcontrollers Overview

The CY8C20446A-24LQXIT is an 8-bit microcontroller from the Infineon PSoC 20xx6A series, utilizing the M8C core. It features 16 kB of program memory and 2 kB of data RAM within a QFN-32 package. The device supports clock frequencies up to 24 MHz and operates on a supply voltage range of 1.71 V to 5.5 V. Key peripherals include one 10-bit Delta-Sigma ADC, CapSense Plus technology with one channel, and standard interfaces such as I2C and SPI. It provides 28 general-purpose I/O pins and functions within a temperature range of -40°C to +85°C.

Application Specific Microcontrollers Feature Summary

• M8C 8-bit CPU core with 16 kB Flash and 2 kB RAM
• CapSense Plus capacitive sensing support (1 channel)
• 10-bit Delta-Sigma ADC module
• Integrated I2C and SPI communication interfaces

Application Specific Microcontrollers Applications

• Capacitive touch sensing applications
• Low-power embedded control systems
• General-purpose microcontroller tasks requiring analog input

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'A' in the part number (CY8C20446A) against procurement requirements, as datasheet references indicate this variant. Confirm moisture sensitivity level (MSL 3) and reflow soldering profile (peak 260°C) for assembly compatibility. Ensure RoHS compliance documentation is obtained from the manufacturer or authorized distributor prior to ordering.

Application Specific Microcontrollers Selection Notes

Select this component when an 8-bit architecture with integrated CapSense capabilities is required. The 10-bit Delta-Sigma ADC suits low-speed, high-resolution analog measurements. Compare pin counts and memory sizes against other PSoC 20xx6A variants if more GPIOs or larger storage are needed. Verify that the 1.71 V minimum operating voltage aligns with the system power design.

Application Specific Microcontrollers Part Context

This part belongs to the Infineon PSoC 20xx6A family, which integrates programmable analog and digital blocks around the M8C processor. It is distinct from the PSoC 1 series and later ARM-based PSoC 4/5 families. The CY8C20446A variant specifically offers 16 kB of Flash memory, differentiating it from lower-capacity models like the CY8C20436.

Application Specific Microcontrollers Replacement Considerations

Direct substitutes within the same package and pinout may include other members of the CY8C20xx6A family, such as the CY8C20446A-24PVXI (DIP package) or CY8C20446A-24LTXI (TSSOP), provided software compatibility with the M8C core is maintained.