PSoC 4 MCU with integrated CapSense and LCD drive
The CY8C4745LQI-S411 is a PSoC® 4 MCU built around a 32-bit ARM Cortex-M0+ core running at 48 MHz. It has 32 KB of Flash program memory and 4K x 8 of SRAM.
CapSense and LCD drive — what it saves on the BOM
The on-chip CapSense peripheral handles capacitive touch buttons, sliders, and proximity sensing without an external controller IC. The LCD drive supports direct connection to segment LCD glass, removing the need for a dedicated display driver. For a control panel with a small LCD and capacitive touch, this part can replace two external ICs plus their supporting passives — a meaningful cost and space saving on a compact 24-QFN (4x4 mm) board.
Connectivity and I/O for sensor aggregation
With 19 general-purpose I/Os and a serial-communication block that supports I²C, SPI, UART/USART, LINbus, IrDA, Microwire, SmartCard, and SSP, this MCU can aggregate data from multiple sensors and talk to a host controller or cloud module over a single bus. The internal oscillator keeps the BOM simple — no external crystal needed for most applications. The 10-bit ADC with 16 channels handles analog sensor inputs directly.
Temperature grade and environment
Rated for -40°C to 85°C ambient, the CY8C4745LQI-S411 is suited for industrial control panels, outdoor telecom equipment, appliance front-ends, and automotive cabin modules. The 24-QFN package with exposed pad helps pull heat into the PCB ground plane, keeping the die cool in enclosed or warm environments.
Lifecycle and sourcing
Infineon lists this part as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is in effect, so it is safe to qualify into new production runs. For current pricing and availability, submit an RFQ — we source through independent distribution and confirm pricing and lead time at quote.