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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 32QFN
- Series：PSOC™1 CY8C21xxx
- Mfr：Infineon Technologies
- Package：Tray
- 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 CY8C21434B-24LTXI is an 8-bit microcontroller from Infineon Technologies, part of the PSoC 1 family. It features the M8C core with a maximum clock frequency of 24 MHz. The device includes 8 kB of program memory and 512 bytes of data RAM. It operates within a supply voltage range of 2.4 V to 5.25 V and supports an operating temperature range of -40°C to +85°C. The component is housed in a QFN-32 package and integrates interfaces including I2C, SPI, and UART.
Feature Summary
- Integrates CapSense technology for capacitive sensing applications
- Includes a Delta-Sigma ADC module with 10-bit resolution
- Supports programmable analog and digital blocks via PSoC Designer software
Applications
- Capacitive touch sensing interfaces
- Low-power embedded control systems
- General-purpose microcontroller applications requiring mixed-signal capabilities
Procurement Notes
Verify the specific suffix 'B' against official datasheets to confirm revision details. Confirm moisture sensitivity level (MSL) requirements for surface mount assembly processes. Ensure compatibility with PSoC Designer development tools. Check RoHS compliance status through manufacturer documentation before integration into regulated products.
Selection Notes
Select this component when a low-pin-count solution with integrated capacitive sensing is required. The M8C architecture suits simple control tasks. Verify that the 24 MHz speed meets timing constraints. Ensure the QFN-32 package fits the board layout. Compare pin counts and peripheral availability against other CY8C21xxx variants if more I/O is needed.
Part Context
This device belongs to the Infineon PSoC 1 family, which combines a processor with configurable analog and digital peripherals. The CY8C21434B variant specifically targets applications needing CapSense functionality alongside standard communication interfaces. It utilizes the M8C core, distinct from ARM-based PSoC generations.
FAQ
What type of ADC is included in the CY8C21434B-24LTXI?
The device includes one Delta-Sigma ADC module with a maximum resolution of 10 bits.
Does this microcontroller support capacitive sensing?
Yes, it integrates CapSense technology, specifically CSD (Capacitive Sensing Design) type, supporting up to 24 channels.
What is the maximum operating frequency of the M8C core?
The maximum clock frequency for the M8C core is 24 MHz.
