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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 32QFN
- Series：PSOC™1 CY8C21xxx
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：M8C
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：POR, PWM, 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：A/D 28x8b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-QFN (5x5)
- Package / Case：32-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The CY8C21434-24LTXIT is an 8-bit microcontroller from the Infineon PSoC 1 family, utilizing the M8C core. It features 8 KB of Flash memory and 512 bytes of RAM. The device operates at a maximum frequency of 24 MHz with a supply voltage range of 2.4 V to 5.25 V. It includes one 10-bit Delta-Sigma ADC sampling at 5.9 ksps, 28 GPIOs, and supports CapSense technology via CSD. Communication interfaces include one I2C module. The component is housed in a 32-QFN package and functions within a temperature range of -40 °C to 85 °C.
Feature Summary
- Integrates CapSense Plus technology for capacitive touch sensing applications using Capacitive Sensing Digital (CSD) methodology.
- Combines digital processing capabilities with analog signal conditioning through a programmable analog block and a dedicated Delta-Sigma ADC.
- Provides flexible input/output configuration with 28 general-purpose I/O pins accessible via the M8C processor architecture.
Applications
- Capacitive touch interface controllers for consumer electronics
- Battery-powered devices requiring low-power operation
- General-purpose embedded control systems
Procurement Notes
Verify the specific suffix 'IT' against official datasheets to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with PSoC Designer software versions supporting the CY8C21xxx series. Confirm RoHS compliance status and lead-free marking specifications prior to procurement to meet assembly standards.
Selection Notes
Select this component when an 8-bit MCU with integrated capacitive touch sensing is required. It is suitable for designs needing a 24 MHz clock speed and limited analog conversion resources. Consider the 32-QFN package constraints for PCB layout. Verify that the 2.4 V minimum supply voltage aligns with the system power budget.
Part Context
This part belongs to the Infineon PSoC 1 CY8C21xxx series, designed for cost-sensitive applications integrating mixed-signal capabilities. The series utilizes the M8C core, distinguishing it from later ARM-based PSoC generations. It targets simple control tasks with analog interfacing needs.
Replacement Considerations
Consult official substitution guides for pin-compatible alternatives within the CY8C21xxx family. Verify functional equivalence regarding CapSense channel counts and memory sizes before replacing.
