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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 32QFN
- Series：PSOC™1 CY8C20xxx
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR)
- Core Processor：M8C
- Core Size：8-Bit
- Speed：12MHz
- Connectivity：I2C, SPI
- Peripherals：LVD, POR, WDT
- Number of I/O：28
- Program Memory Size：8KB (8K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：512 x 8
- Voltage - Supply (Vcc/Vdd)：2.4V ~ 5.25V
- Data Converters：-
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-QFN (5x5)
- Package / Case：32-UFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The CY8C20434-12LKXIT is an 8-bit microcontroller from Infineon Technologies, part of the PSoC family. It features an M8C core with 8 KB of Flash program memory and 512 bytes of RAM. 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 CapSense technology for capacitive sensing applications. The component is housed in a QFN-32 package and provides 28 I/O pins. It supports I²C and SPI interfaces and functions within a temperature range of -40°C to 85°C.
Feature Summary
- Integrates CapSense technology for capacitive touch sensing solutions
- Features an M8C 8-bit processor core for embedded control
- Supports low-power operation across a wide voltage range
Applications
- Capacitive touch interface controllers
- Low-power embedded systems
- General-purpose microcontroller applications requiring I2C/SPI connectivity
Procurement Notes
Verify the specific suffix 'KXI' against official Infineon documentation to confirm package type and tape-and-reel availability. Ensure the requested quantity matches distributor packaging constraints. Confirm RoHS compliance status through the manufacturer's current datasheet or certification documents prior to ordering.
Selection Notes
Select this component when an 8-bit MCU with integrated CapSense capabilities is required. The 12 MHz speed and 8 KB Flash are suitable for moderate complexity tasks. Consider the QFN-32 package for space-constrained designs. Verify that the 2.4V minimum operating voltage aligns with the system power supply design.
Part Context
This part belongs to the Cypress/Infineon PSoC 2 series, designed for mixed-signal applications. It combines digital logic with analog peripherals and CapSense functionality. The series targets cost-sensitive consumer electronics and industrial controls where small form factors and low power consumption are critical.
Replacement Considerations
Check for direct pin-compatible substitutes within the CY8C20xxx series, such as the CY8C20434-12LQXI, noting any differences in package (QFN vs LQFN) or reel configuration. Verify functional equivalence regarding CapSense channel count and memory size before substitution.
