CY8C20446H-24LQXI

Application Specific Microcontrollers Overview

The CY8C20446H-24LQXI is an 8-bit microcontroller from the Cypress Semiconductor PSoC 1 family, featuring the M8C CPU core. It integrates 16 kB of Flash program memory and 2 kB of SRAM data memory within a 32-pin QFN package. The device operates at clock speeds up to 24 MHz with a supply voltage range of 1.71 V to 5.5 V. Key features include CapSense capacitive sensing capabilities, SmartSense auto-tuning, and an integrated Immersion TS2000 haptics controller for ERM drive control. It supports I2C slave, SPI master/slave interfaces, three 16-bit timers, and an 8- to 10-bit ADC.

Application Specific Microcontrollers Feature Summary

• Integrates Immersion TS2000 Haptics technology for ERM drive control with up to 14 selectable effects.
• Features SmartSense auto-tuning algorithm for robust CapSense applications without manual tuning.
• Includes 16 kB Flash and 2 kB SRAM with support for partial flash updates and ISSP.
• Provides up to 28 GPIOs with dual-mode digital/analog capability and configurable input thresholds.

Application Specific Microcontrollers Applications

• Capacitive touch sensing interfaces including buttons, sliders, and touchpads.
• Haptic feedback systems utilizing ERM motors.
• Low-power embedded controllers requiring programmable analog and digital resources.

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix 'LQXI' corresponds to the 32-pin QFN package and commercial temperature range (-40 °C to +85 °C) as defined in the official datasheet. Confirm that the 'H' variant designation indicates the inclusion of the Haptics TS2000 controller resource compared to non-H variants. Ensure development tools such as PSoC Designer are compatible with this device family.

Application Specific Microcontrollers Selection Notes

Select the CY8C20446H over the CY8C20336H when 16 kB of Flash memory and 2 kB of SRAM are required. Choose this model if hardware-based haptic control for ERM motors is needed. Verify that the 32-pin QFN package fits the board layout constraints. Consider the 24 MHz maximum clock speed and the availability of I2C/SPI interfaces for system connectivity requirements.

Application Specific Microcontrollers Part Context

This component belongs to the CY8C20x36H/46H series of PSoC 1 devices. It shares architectural similarities with the CY8C20446A but includes distinct haptics integration. The 'H' suffix differentiates it from standard CapSense-only controllers by adding the dedicated haptics controller block.

Application Specific Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Cross-referencing with CY8C20446A requires verification of the haptics feature set and software compatibility via official Cypress/Infineon documentation.