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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)
- 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 CY8C21434-24LFXIT is an 8-bit microcontroller from Infineon Technologies, part of the PSoC™ 1 family. It features an M8C core operating at a maximum frequency of 24 MHz. The device includes 8 kByte of Flash memory and 512 bytes of SRAM. It provides 28 GPIO pins and integrates CapSense technology for touch sensing applications. The unit supports a supply voltage range of 2.4 V to 5.25 V and operates within a temperature range of -40 °C to 85 °C.
Feature Summary
- Integrates CapSense Plus technology for capacitive touch sensing capabilities
- Includes a single Delta-Sigma ADC with 10-bit resolution
- Features an M8C 8-bit CPU core for efficient code execution
- Provides flexible I/O configuration with up to 28 general-purpose pins
Applications
- Capacitive touch interface controllers
- Low-power embedded control systems
- Consumer electronics input devices
- Industrial sensor interfaces
Procurement Notes
Verify the specific suffix LFXIT against official Infineon documentation to confirm package type and tape/reel specifications. Ensure compatibility with PSoC Designer software versions supporting the PSoC 1 architecture. Confirm RoHS compliance status through current manufacturer declarations prior to integration into production designs.
Selection Notes
Select this component when requiring integrated touch sensing alongside standard MCU functions in a compact footprint. The 24 MHz speed and 8 kB memory suit resource-constrained applications. Verify that the QFN package meets thermal and mechanical constraints of the target PCB layout.
Part Context
This model belongs to the CY8C21xxx series of PSoC 1 devices. It shares architectural similarities with variants like the CY8C21434-24LTXI but differs in packaging and shipping format. The series is characterized by mixed-signal capabilities and programmable analog blocks.
Replacement Considerations
Check for direct substitutes such as CY8C21434-24LTXI or CY8C21434B-24LQXI if package availability is critical. Note that some variants may be obsolete; verify lifecycle status before substitution.
