CY8C20334-12LQXI

Overview

The CY8C20334-12LQXI is an 8-bit microcontroller from the Infineon PSoC 1 family, featuring the M8C processor core. It integrates 8 KB of Flash program storage and 512 Bytes of SRAM data memory. The device supports a maximum clock frequency of 12 MHz and operates within a voltage range of 2.4 V to 5.25 V. It includes a dedicated CapSense block for capacitive sensing applications and provides up to 28 general-purpose I/O pins.

Feature Summary

• Integrates a low-power CapSense block supporting configurable capacitive sensing elements for buttons, sliders, touchpads, and proximity sensors.
• Features a powerful M8C Harvard-architecture processor with speeds running up to 12 MHz and low power consumption at high speed.
• Includes flexible on-chip memory with 8 KB flash program storage and 512 Bytes SRAM data storage, supporting partial flash updates.
• Provides programmable pin configurations with pull-up, high Z, open-drain, and CMOS drive modes on all GPIOs.

Applications

• Capacitive sensing interfaces such as sliders and touch pads
• Complex capacitive sensing applications requiring hardware scanning control
• Systems utilizing configurable analog and digital blocks for customized peripheral configurations

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to ensure correct package type and temperature rating. Confirm that the component matches the exact part number CY8C20334-12LQXI. Check for any discontinuation notices or lifecycle status updates directly from the manufacturer before procurement.

Selection Notes

Select this component when designing systems requiring integrated capacitive sensing capabilities alongside standard microcontroller functions. Consider the 12 MHz processing speed and available I/O count relative to system requirements. Ensure compatibility with the PSoC Designer development environment for hardware and firmware co-design.

Part Context

This device belongs to the PSoC 1 Programmable System-on-Chip family, originally developed by Cypress Semiconductor Corporation. Infineon Technologies continues to offer this product as part of its portfolio following the acquisition of Cypress. The architecture allows replacing multiple traditional MCU-based components with a single programmable chip.

Replacement Considerations

Consult the official datasheet for equivalent parts within the CY8C20x34 series. Verify functional compatibility regarding memory size, I/O count, and CapSense channel availability before substituting.