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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-XFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The CY8C21434-24LCXI is an 8-bit microcontroller from the PSoC family, featuring an M8C processor core with speeds up to 24 MHz. It includes 8 KB of Flash program storage and 512 bytes of SRAM data storage. The device provides up to 28 GPIO pins and supports operating voltages from 2.4 V to 5.25 V, or down to 1.0 V using an on-chip switch mode pump. It operates within an industrial temperature range of -40°C to +85°C.
Feature Summary
- Configurable analog and digital system resources allow for custom peripheral creation.
- Supports capacitive sensing applications via versatile analog multiplexer system.
- Includes internal oscillators for main clock and low-speed watchdog functions.
Applications
- Capacitive touch sensing interfaces
- Low voltage battery-powered systems
- Industrial control systems requiring programmable mixed-signal I/O
Procurement Notes
Verify the specific ordering suffix against official Infineon documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list obsolete or end-of-life variants. Ensure development tools like PSoC Designer are compatible with the selected silicon revision before procurement.
Selection Notes
Select this component when a flexible mixed-signal architecture is required to replace multiple discrete components. Consider the CY8C21434 series for designs needing configurable analog blocks and digital peripherals. Evaluate the need for the switch mode pump if single-cell battery operation is necessary.
Part Context
This part belongs to the CY8C21x34 PSoC family, which integrates programmable analog and digital blocks with an 8-bit CPU. The family is designed to reduce system complexity by consolidating mixed-signal functions onto a single chip. It utilizes the PSoC Designer IDE for configuration and development.
Replacement Considerations
Check for direct pin-compatible substitutes within the CY8C21x34 family, such as CY8C21534 or CY8C21634, noting differences in GPIO count and analog block availability. Verify software compatibility with existing PSoC Designer projects.
