Infineon Technologies CY8C4013LQI-411T

Overview

CY8C4013LQI-411T from Infineon (formerly Cypress) is a 32-bit Arm Cortex-M0 programmable system-on-chip (PSoC) with integrated CapSense capacitive sensing, two current DACs (IDACs), one low-power comparator, and a 16-bit TCPWM block. It features 16 KB flash, 2 KB SRAM, operates from 1.71 V to 5.5 V, and supports Deep Sleep wake-up via I²C address match - used in touch-enabled human interface modules, smart sensors, and ultra-low-power embedded controllers.

For engineers reviewing the CY8C4013LQI-411T datasheet, CY8C4013LQI-411T pinout, CY8C4013LQI-411T application, or CY8C4013LQI-411T equivalent, key selection criteria include CapSense SNR performance, SmartSense™ auto-tuning range (5–45 pF), I²C wake-on-address capability in Deep Sleep, TCPWM kill-signal triggering for motor control, and SWD debug interface compatibility with industry-standard Arm tools.

Technical Context

The device implements a single-core Arm Cortex-M0 CPU running at up to 16 MHz, tightly coupled with 16 KB flash (zero wait-state at full speed) and 2 KB SRAM. Its analog subsystem centers on a 1.2-V referenced comparator and two programmable IDACs supporting both general-purpose analog output and CapSense CSD modulation.

Digital resources include one multi-mode TCPWM block (center-aligned, edge, pseudo-random PWM), a single SCB-based I²C peripheral with Deep Sleep address detection, and a flexible GPIO matrix routing to CapSense, analog, and digital functions across Ports 0–2 - all managed by the PSoC Creator IDE's automatic hardware routing engine.

Key Specifications

Pinout & Package

Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.

Compared with STM32G031K8T6 and RP2040, CY8C4013LQI-411T uniquely integrates hardware CapSense, analog IDACs/comparator, and Deep Sleep I²C wake-up in a compact 24-QFN package - delivering lower system-level BOM cost, faster time-to-market for touch HMI, and superior power efficiency in always-on sensing applications.

Availability

CY8C4013LQI-411T is available at Aetrix Electronics and suitable for touch-enabled consumer interfaces, industrial sensor nodes, smart lighting controls, and medical HMI modules requiring stable component supply and long-term manufacturability.

Supply support for CY8C4013LQI-411T 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 acquired Cypress Semiconductor in 2020 and now develops, manufactures, and supports the PSoC family - a leader in programmable mixed-signal SoCs for embedded control and human interface applications.

The PSoC 4000 product line targets cost-sensitive, space-constrained designs requiring integrated analog sensing, capacitive touch, and low-power MCU functionality - optimized for rapid prototyping with PSoC Creator and scalable to higher-performance PSoC 4 families.

FAQ

What development tools are required to program and debug CY8C4013LQI-411T?

The PSoC Creator IDE (free Windows-based tool) is the primary development environment, providing schematic-driven hardware configuration, API generation, and integrated SWD debugging. Programming and debug are performed via MiniProg3 or KitProg2 programmers using the standard 5-pin SWD interface. No JTAG adapter or external emulator is needed - full chip visibility and real-time trace are supported out-of-box.

Does CY8C4013LQI-411T support true hardware-based capacitive sensing without external components?

Yes - it integrates Cypress's CapSense Sigma-Delta (CSD) block with dedicated modulator and IDACs, enabling self-capacitance and mutual-capacitance sensing using only PCB traces. No external RC networks, op-amps, or dedicated touch controller ICs are required. SmartSense™ auto-calibration adjusts IDAC current and scan parameters dynamically across environmental conditions.

Can the TCPWM block generate complementary PWM outputs with dead-time insertion?

No - the single TCPWM block in CY8C4013LQI-411T supports center-aligned, edge-aligned, and pseudo-random PWM but lacks built-in complementary output pairs or programmable dead-time insertion. For motor gate drive requiring dead-time, external logic or discrete gate drivers must be used - or consider higher-tier PSoC 4 devices like CY8C4247LTI-M485 with dual TCPWM and dead-time units.

Is the 24-pin QFN package of CY8C4013LQI-411T compatible with reflow soldering per IPC-J-STD-020?

Yes - the 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch) package is qualified for standard lead-free reflow profiles per IPC-J-STD-020D. Peak temperature is rated at 260 °C for 30 seconds maximum. The exposed thermal pad must be soldered to a solid copper thermal land with ≥60% solder coverage and connected to internal ground planes via ≥4 thermal vias (0.3 mm diameter) for reliability and thermal performance.