Infineon Technologies CY8C4024LQI-S413

Overview

CY8C4024LQI-S413 from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 24 KB flash, 4 KB SRAM, and integrated CAPSENSE™ capacitive sensing. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode at 2.5 µA, and delivers best-in-class SNR (>5:1) for touch interfaces in consumer HMI and industrial control panels.

For engineers reviewing the CY8C4024LQI-S413 datasheet, CY8C4024LQI-S413 pinout, CY8C4024LQI-S413 application, or CY8C4024LQI-S413 equivalent, key selection criteria include its 48-MHz CPU performance, dual SCB blocks (reconfigurable I²C/SPI/UART), five TCPWM timers with comparator-triggered kill signals, and programmable analog blocks including two IDACs and low-power comparators.

Technical Context

The device integrates a single-layer AHB-Lite interconnect linking the Cortex®-M0+ core, 24 KB flash with read accelerator, and 4 KB SRAM. System resources include IMO (±2%), WCO (32 kHz), and ILO (32 kHz), enabling precise timing across sleep/wake transitions.

Analog functionality centers on CAPSENSE™ v2 sigma-delta sensing with SmartSense auto-tuning, supported by two current DACs and two deep-sleep-capable comparators. Digital flexibility includes five 16-bit TCPWM blocks (center-aligned, edge, pseudo-random PWM), two reconfigurable serial communication blocks (SCBs), and programmable logic on GPIOs.

Key Specifications

Pinout & Package

Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller-with-integrated-capacitive-sensing applications.

Compared with CY8C4024LQI-S403, this part offers 50% more flash and SRAM for advanced CAPSENSE™ tuning or co-located communication stacks; versus STM32G031F8P6, it eliminates external touch components and reduces PCB layer count but trades raw CPU speed for analog integration.

Availability

CY8C4024LQI-S413 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI terminals, portable medical device UIs, and smart lighting dimmer modules requiring stable component supply and long-term lifecycle support.

Supply support for CY8C4024LQI-S413 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive MCUs, and secure connectivity solutions, with global manufacturing and R&D infrastructure.

This part belongs to the PSoC™ 4000S product line - designed specifically for cost-sensitive, low-power embedded systems requiring integrated analog sensing, flexible digital peripherals, and rapid CAPSENSE™-enabled UI development.

FAQ

What debug interface does CY8C4024LQI-S413 support?

CY8C4024LQI-S413 uses ARM Serial Wire Debug (SWD) with SWDCLK and SWDIO pins. It supports full in-circuit programming, real-time breakpoint debugging, and memory inspection without external pods or emulators. The debug circuitry is enabled by default but can be disabled in firmware for security-critical deployments.

Does this MCU support hardware-accelerated capacitive sensing without external components?

Yes. CY8C4024LQI-S413 integrates CAPSENSE™ v2 with sigma-delta modulation, SmartSense auto-tuning, and dedicated analog routing. It drives electrodes directly using internal IDACs and measures capacitance changes without external op-amps, RC networks, or calibration resistors - verified in Infineon AN85951 and the PSoC™ 4 CAPSENSE™ design guide.

Can the TCPWM blocks generate center-aligned PWM for motor control?

Yes. All five TCPWM blocks support center-aligned, edge-aligned, and pseudo-random PWM modes. Center-aligned mode provides symmetrical switching for reduced EMI in BLDC or stepper motor gate drivers, and kill signals can be triggered directly by comparator outputs for hardware-safe shutdown - detailed in Section 3.7.2 of datasheet 002-00123 Rev. *Q.

Is the 40-pin QFN package lead-free and RoHS-compliant?

Yes. The CY8C4024LQI-S413 uses a 40-pin QFN package (6 × 6 mm, 0.5 mm pitch) that is fully RoHS-compliant and lead-free per JEDEC J-STD-020. Moisture sensitivity level is MSL-3, requiring bake-before-reflow if exposed beyond floor life - confirmed in Infineon packaging document 002-00124.