What this PSOC 4 MCU delivers for a BOM line
The CY8C4024LQI-S412T: With 27 I/O lines and connectivity covering I²C, SPI, UART/USART, LINbus, and IrDA, it handles sensor fusion, serial displays, and industrial fieldbus bridging in a 32-UFQFN package (5x5 mm). The operating temperature range of -40°C to 85°C qualifies it for outdoor telecom cabinets, factory-floor sensors, and engine-bay-adjacent modules.
24 MHz core — where it fits and where it doesn't
The 24 MHz clock is adequate for real-time control loops, capacitive touch scanning, and low-speed data logging. It is not a part for high-rate signal processing or video — the sibling CY8C4245LQI-483 runs at 48 MHz and offers 8x12-bit SAR ADC channels for applications needing faster sampling or more analog front-end resolution.
CapSense and LCD drive — BOM consolidation
The integrated CapSense block eliminates a dedicated touch controller IC and its associated PCB routing. The LCD drive supports segment displays without an external driver chip. For a control panel with a small segment LCD and capacitive buttons, this MCU covers both with one firmware image.
Lifecycle and supply posture
The CY8C4024LQI-S412T carries an Active lifecycle status from Infineon — no last-time-buy or obsolescence notice on record. It is ROHS3 compliant. For production builds, the part is available in Tape & Reel or Cut Tape options, and we source it through multiple distribution channels.