Infineon Technologies CY8C4013LQI-411
- Part No.:
- CY8C4013LQI-411
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 16-UFQFN Exposed Pad
- Datasheet:
-
CY8C4013LQI-411.pdf
- Description:
- IC MCU 32BIT 8KB FLASH 16QFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,556
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Product details
Overview
CY8C4013LQI-411 from Infineon (formerly Cypress) is a PSoC 4000-series programmable system-on-chip featuring a 16-MHz Arm Cortex-M0 CPU, 16 KB flash, 2 KB SRAM, integrated CapSense sigma-delta capacitive sensing, two IDACs, one low-power comparator, and one TCPWM block. It operates from 1.71 V to 5.5 V and supports Deep Sleep wake-up via I²C address match or interrupt - deployed in touch-enabled human interface modules, smart sensors, and ultra-low-power IoT edge nodes.
For engineers reviewing the CY8C4013LQI-411 datasheet, CY8C4013LQI-411 pinout, CY8C4013LQI-411 application, or CY8C4013LQI-411 equivalent, key selection criteria include its 16-pin QFN package, CapSense SNR performance, SmartSense™ auto-tuning range (5–45 pF), I²C wake capability in Deep Sleep, and SWD debug interface compatibility with Arm-standard tools.
Technical Context
The device integrates a fixed-function Arm Cortex-M0 core with programmable analog (comparator + IDACs) and digital (TCPWM, SCB-I²C) peripherals routed through a configurable interconnect matrix. Its clock system combines a factory-trimmed 24/32 MHz IMO and a 40 kHz ILO for active and Deep Sleep operation respectively.
CapSense functionality is implemented via dedicated sigma-delta modulation hardware with hardware-accelerated baseline tracking and noise rejection - not emulated in firmware. The single TCPWM block supports center-aligned, edge-aligned, and pseudo-random PWM modes with comparator-triggered kill signals for motor control safety logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 16 MHz max - enables Thumb-2 binary compatibility with higher-tier Cortex-M devices for scalable firmware migration. |
| Flash / SRAM | 16 KB flash with Read Accelerator, 2 KB zero-wait-state SRAM - supports real-time deterministic code execution at full speed. |
| CapSense Engine | Cypress CapSense Sigma-Delta (CSD) with SmartSense™ auto-tuning - delivers >100:1 SNR and water-tolerant touch detection without manual calibration. |
| I/O Pins | Up to 20 GPIO across Ports 0–2 - configurable as CapSense electrodes, I²C pins, or general-purpose with programmable drive strength and slew rate. |
| Low-Power Modes | Deep Sleep current < 1.3 µA @ 3.3 V with I²C address detect wake - enables battery-powered operation for years in sensor-hub applications. |
| Debug Interface | 2-wire Serial Wire Debug (SWD) - provides full on-chip debug, flash programming, and trace without external pods or JTAG adapters. |
| Supply Range | 1.71 V to 5.5 V single supply - eliminates need for external LDOs in mixed-voltage systems (e.g., 3.3 V logic + 5 V analog sensors). |
Pinout & Package
Package: 16-pin QFN (3 mm × 3 mm, 0.5 mm pitch), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main power rail (1.71–5.5 V); powers all digital and analog blocks including CapSense modulator. |
| GND | Ground reference | Digital and analog common return; requires low-impedance connection to minimize CapSense noise coupling. |
| P0[0]–P0[3] | GPIO / CapSense electrode | Four pins support simultaneous CapSense scanning; each configurable as TX/RX or shield in CSD architecture. |
| P0[4] | IMO output / Clock source | Can route internal IMO clock externally for synchronization or test measurement; also functions as GPIO. |
| SCL / SDA | I²C bus interface | Dedicated SCB-I²C block pins supporting multi-master operation and Deep Sleep wake-on-address-match. |
| SWDIO / SWCLK | Debug interface | 2-wire SWD pins for programming, breakpoint debugging, and memory inspection without halting real-time operation. |
| XRES | External reset input | Active-low reset pin (internal pull-up enabled); not present on 8/16-pin SOIC/WLCSP variants but included in this QFN package. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration over 5–45 pF sensor range - eliminates firmware tuning loops and reduces BOM cost by removing external trim components. |
| Deep Sleep I²C Wake | I²C address detection logic remains active while CPU, flash, and SRAM are powered down - enables always-on communication listening with sub-µA quiescent current. |
| Programmable Drive Strength | Four GPIO drive modes (Strong, Resistive Pull-Up/Down, Open Drain) with configurable slew rate - prevents signal integrity issues on long traces or high-capacitance touch panels. |
| Comparator with Internal Reference | Fixed 1.2 V reference tied to comparator + input; − input selectable from 16 pins - enables threshold-based wake events (e.g., battery voltage monitoring) without external components. |
Applications
| Smart Home Touch Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted light/dimmer control panel with waterproof overlay and proximity wake. IC Role / Device Role / Timing Role: Primary MCU and capacitive sensing controller; handles touch decoding, LED dimming PWM, and local decision logic. Use Value: SmartSense™ maintains stable touch response across temperature/humidity shifts; Deep Sleep I²C wake allows remote configuration via gateway without continuous polling. | Use Scenario: Battery-powered vibration/temperature node in predictive maintenance system. IC Role / Device Role / Timing Role: Edge data aggregator and low-power scheduler; samples analog sensors, runs basic FFT preprocessing, and transmits alerts via BLE companion MCU. Use Value: 1.3 µA Deep Sleep current extends 2-AA battery life beyond 5 years; integrated comparator triggers wake on threshold breach (e.g., temp > 85°C). |
| Medical Wearable Interface | Consumer Appliance Control |
Use Scenario: ECG patch with dry-electrode touch activation and motion-triggered display wake. IC Role / Device Role / Timing Role: Capacitive gesture processor and system supervisor; manages electrode impedance check, motion interrupt handling, and power state transitions. Use Value: CSD engine achieves >100:1 SNR even with skin contact variability; SWD debug enables in-system firmware updates without disassembly. | Use Scenario: Microwave oven control panel with slider, buttons, and child-lock function. IC Role / Device Role / Timing Role: Standalone HMI controller; implements CapSense slider, buzzer timing, relay drive sequencing, and safety interlock monitoring. Use Value: Single TCPWM block generates precise buzzer tones and relay PWM with comparator-kill for immediate fault shutdown during overcurrent detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4014LQI-412 | Same package and core; adds 1 extra TCPWM block and 1 additional SCB (UART/SPI/I²C configurable) | Required when dual independent PWM channels or second serial interface needed (e.g., UART debug + I²C sensor bus) | Select if design requires concurrent PWM generation or redundant serial comms - otherwise CY8C4013LQI-411 offers lower cost and identical CapSense performance. |
| STM32G031F8P6 | Arm Cortex-M0+, 64 MHz max, no integrated CapSense; requires external touch controller or software-based solution | Used where high-speed computation dominates over robust touch - e.g., motor control with minimal HMI | Choose only if CapSense is secondary; STM32G031 lacks hardware CSD engine, so touch reliability, SNR, and water tolerance degrade without significant firmware overhead. |
Compared with CY8C4013LQI-411, CY8C4014LQI-412 adds peripheral headroom at minor cost increase, while STM32G031F8P6 trades integrated capacitive sensing for raw CPU throughput - making CY8C4013LQI-411 optimal for touch-first, ultra-low-power embedded designs where analog integration reduces component count and validation effort.
Availability
CY8C4013LQI-411 is available at Aetrix Electronics and suitable for smart home interfaces, industrial sensor nodes, medical wearables, and consumer appliance controls requiring stable component supply, long-term lifecycle assurance, and consistent CapSense performance across production batches.
Supply support for CY8C4013LQI-411 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 intelligent edge applications.
The PSoC 4000 product line targets cost-sensitive, space-constrained embedded systems needing integrated capacitive sensing, low-power operation, and rapid firmware-hardware co-design - optimized for touch HMI, sensor fusion, and simple control tasks.
FAQ
Does CY8C4013LQI-411 support USB connectivity?
No. This device does not include a USB physical layer or USB controller. Communication is limited to I²C, and configurable SCB peripherals (I²C/SPI/UART). For USB host/device functionality, designers must pair it with an external USB bridge IC or select a PSoC 4100/4200 device with integrated USBFS.
Can the internal comparator trigger Deep Sleep wake-up?
Yes. The low-power comparator can generate an interrupt that wakes the device from Deep Sleep mode. Its output is connected to the Wakeup Interrupt Controller (WIC), enabling event-driven wake-up based on analog thresholds - such as battery voltage drop or sensor signal crossing.
Is SmartSense™ tuning compatible with custom PCB layouts?
Yes. SmartSense™ operates independently of layout parasitics because it dynamically adjusts IDAC current and scan parameters in real time. It has been validated across diverse mechanical overlays, electrode geometries, and stack-ups - no layout-specific calibration required.
What debug tools are natively supported?
The device supports standard Arm Serial Wire Debug (SWD) using tools like MiniProg3, KitProg3, or third-party debuggers (e.g., Segger J-Link, ST-Link v2). PSoC Creator IDE provides full integration for programming, breakpoints, register inspection, and real-time variable watch - no proprietary hardware required.
CY8C4013LQI-411 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 16-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4000
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 16MHz
- Connectivity:
- I2C
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- D/A 1x7b, 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4013LQI-411 FAQ
1.How can I place an order for CY8C4013LQI-411 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4013LQI-411 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C4013LQI-411 reliable?
The price and inventory of CY8C4013LQI-411 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4013LQI-411 is usually 5 days.
3.What payment methods are accepted for CY8C4013LQI-411?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4013LQI-411 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4013LQI-411?
CY8C4013LQI-411 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4013LQI-411 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C4013LQI-411?
For technical support, including CY8C4013LQI-411 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4013LQI-411 requirements.
6.How does Aetrix verify that CY8C4013LQI-411 is sourced from the original manufacturer or authorized distributors?
All CY8C4013LQI-411 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4013LQI-411 meets industry standards.
7.What is the process for return or replacement of CY8C4013LQI-411?
All CY8C4013LQI-411 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4013LQI-411, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C4013LQI-411 part is unused and in its original packaging.
Return procedure for CY8C4013LQI-411:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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