CY8C20334-12LQXI

Overview

The CY8C20334-12LQXI is an 8-bit microcontroller from the PSoC 1 family, featuring the M8C core running at 12 MHz. It includes 8 KB of flash program storage and 512 bytes of SRAM data memory. The device operates within a voltage range of 2.4 V to 5.25 V and supports industrial temperatures from -40 °C to +85 °C. It integrates a low power CapSense block for capacitive sensing, configurable I/O with up to 28 analog inputs, and communication interfaces including I2C and SPI.

Feature Summary

• Integrates a dedicated CapSense analog system for hardware-based capacitive sensing without external components.
• Features a powerful M8C Harvard-architecture processor with speeds up to 12 MHz.
• Provides flexible on-chip memory with partial flash updates and in-system serial programming capabilities.
• Includes programmable pin configurations with selectable digital I/O drive modes and analog multiplexer connectivity.

Applications

• Capacitive sensing applications such as buttons, sliders, touchpads, and proximity sensors
• Low power embedded control systems requiring high-speed processing
• Industrial automation devices operating in wide temperature ranges

Procurement Notes

Verify the component manufacturer status, as Cypress Semiconductor is now part of Infineon Technologies. Confirm that the ordering part number matches the specific package and speed grade required for your design. Ensure compliance with RoHS directives and check for any relevant environmental certifications before procurement.

Selection Notes

Select this component when a combination of programmable analog/digital blocks and integrated capacitive sensing is required. The CY8C20334-12LQXI is suitable for designs needing up to 28 GPIOs with analog capabilities. Consider the 8 KB flash and 512-byte RAM limits against application complexity requirements.

Part Context

This device belongs to the PSoC 1 CY8C20x34 family, designed to replace multiple traditional MCU-based system components with a single chip. It utilizes a unique architecture combining a CPU core, system resources, and a CapSense analog system connected via a common versatile bus.

Replacement Considerations

Check the official datasheet for cross-references within the CY8C20x34 family, such as CY8C20234 or CY8C20434, which may offer different pin counts or memory sizes while maintaining functional compatibility.

FAQ

What is the maximum clock speed of the M8C processor in this device?

The M8C processor in the CY8C20334-12LQXI runs at speeds up to 12 MHz.

Does the device support internal oscillators?

Yes, it includes an internal ±5.0% 6-/12-MHz main oscillator and an internal low-speed oscillator at 32 kHz for watchdog and sleep functions.