CY8C20446AS-24LQXI

Application Specific Microcontrollers Overview

The CY8C20446AS-24LQXI is an 8-bit microcontroller from the Cypress CapSense Express family, utilizing the M8C CPU core. It features 16 kB of Flash program memory and 2 kB of SRAM data storage. The device supports a maximum clock frequency of 24 MHz and operates within a voltage range of 1.71 V to 5.5 V. It integrates a low-power CapSense block for capacitive sensing applications and includes an Immersion TS2000 Haptics controller for ERM drive control. The component provides up to 28 GPIOs in a 32-pin QFN package.

Application Specific Microcontrollers Feature Summary

• Integrates Immersion TS2000 Haptics technology for ERM drive control with up to 14 selectable effects.
• Features a low-power CapSense block supporting configurable buttons, sliders, touchpads, and proximity sensors.
• Includes an M8C Harvard-architecture processor running at speeds up to 24 MHz.
• Provides flexible on-chip memory with 16 kB Flash and 2 kB SRAM.

Application Specific Microcontrollers Applications

• Capacitive sensing interfaces including buttons, sliders, and touchpads.
• Haptic feedback systems requiring ERM motor drive control.
• Proximity sensor implementations.
• Touchscreen applications.

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'A' against the primary datasheet for CY8C20446H to confirm if it denotes a specific revision or variant not explicitly detailed in the provided text. Ensure the ordering code matches the exact pinout and package requirements for the target design.

Application Specific Microcontrollers Selection Notes

Select this model when both CapSense functionality and haptic feedback capabilities are required in a single chip. The 16 kB Flash size accommodates more complex firmware than the 8 kB variants. Ensure the application voltage stays within the 1.71 V to 5.5 V operating range.

Application Specific Microcontrollers Part Context

This component belongs to the CY8C20xx6A series of PSoC devices. It is part of the CapSense Express controllers which support up to 16 GPIOs for capacitive sensing without manual tuning via SmartSense algorithms. The device replaces multiple traditional MCU-based components with a single programmable chip.

Application Specific Microcontrollers Replacement Considerations

The CY8C20446H is the base model referenced in the datasheet. Verify if the 'A' suffix indicates a specific manufacturing lot or minor revision. Other family members like CY8C20336H offer similar features but with reduced memory (8 kB Flash/1 kB SRAM) and a smaller 24-pin package.