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Infineon Technologies CY8C4014LQI-412T
- Part No.:
- CY8C4014LQI-412T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY8C4014LQI-412T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24SQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,294
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Product details
Overview
CY8C4014LQI-412T from Infineon (formerly Cypress) is a 32-bit Arm Cortex-M0 programmable system-on-chip (PSoC) with 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, supports Deep Sleep wake-up in 35 µs, and targets ultra-low-power touch-enabled embedded control applications.
For engineers reviewing the CY8C4014LQI-412T datasheet, CY8C4014LQI-412T pinout, CY8C4014LQI-412T application, or CY8C4014LQI-412T equivalent, key selection criteria include CapSense SNR performance, SmartSense™ auto-tuning range (5–45 pF), I²C address-match wake-up in Deep Sleep, SWD debug interface compatibility, and GPIO drive-mode programmability across Ports 0–2.
Technical Context
The device integrates a 16-MHz Arm Cortex-M0 CPU with NVIC and WIC for interrupt-driven low-power operation, tightly coupled flash with Read Accelerator enabling zero-wait-state execution, and a dedicated analog subsystem including a 1.2-V reference-based comparator and two current DACs optimized for capacitive sensing or analog output.
Its clock architecture combines a factory-trimmed 24/32-MHz IMO (±2% accuracy) and a 40-kHz ILO for Deep Sleep timing, with four 16-bit clock dividers enabling precise peripheral clock synthesis; the single SCB-I²C block supports multi-master operation and address-match wake-up during Deep Sleep.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 16 MHz max - enables Thumb-2 binary compatibility with higher-performance Cortex-M3/M4 for scalable firmware migration. |
| Flash Memory | 16 KB with Read Accelerator - delivers zero wait-state access at full speed, reducing instruction fetch latency in real-time control loops. |
| SRAM | 2 KB - sufficient for stack, heap, and sensor data buffering in touch-enabled edge nodes with minimal external memory. |
| CapSense | Cypress CSD engine with SmartSense™ - provides hardware-accelerated auto-tuning over 5–45 pF sensor range, eliminating manual calibration in production. |
| I²C Interface | Single SCB block with Deep Sleep address match - allows host wake-up without CPU active, critical for battery-powered remote controls and IoT sensors. |
| Power Modes | Active / Sleep / Deep Sleep - Deep Sleep draws <1.3 µA typical with ILO + WDT active, enabling multi-year coin-cell operation. |
| GPIO | Up to 20 pins across Ports 0–2 - each supports configurable drive mode (pull-up/down, open-drain, strong/weak), slew rate, and CapSense routing. |
Pinout & Package
Package: 24-pin QFN (4 × 4 mm, 0.5 mm pitch), RoHS-compliant, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers all digital and analog blocks; requires local 100-nF decoupling. |
| GND | Ground reference | Common return for all circuits; connects to thermal pad for thermal dissipation and noise reduction. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up enabled; used for system-level fault recovery or power-on sequencing. |
| P0[0]–P0[7] | Programmable GPIO / CapSense | Port 0 pins support CapSense CSD, analog comparator input, or digital I/O with configurable drive strength and slew. |
| P1[0]–P1[7] | Programmable GPIO / I²C / TCPWM | Port 1 pins route to SCB-I²C SDA/SCL or TCPWM capture/compare outputs; support high-speed toggling up to 16 MHz. |
| P2[0]–P2[3] | Programmable GPIO / IDAC output | Port 2 pins connect to IDAC current sources for sensor biasing or analog output; support precision current sourcing/sinking. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration across 5–45 pF sensor range eliminates firmware tuning overhead and improves production yield. |
| SWD Debug Interface | 2-wire serial wire debug with 4 breakpoint and 2 watchpoint comparators enables full on-chip debugging without external pods or emulators. |
| Deep Sleep Wake-up | 35 µs wake-up time from Deep Sleep with I²C address match ensures rapid response to host commands while maintaining sub-µA quiescent current. |
| Programmable Drive Modes | Each GPIO supports 12+ drive configurations (e.g., strong pull-up, open-drain, high-slew analog) enabling optimal signal integrity for mixed-signal PCB layouts. |
| Flash Protection | Configurable read/write protection per 64-byte row and debug disable option prevents unauthorized firmware extraction or reprogramming in secure deployments. |
Applications
| Home Appliance Touch Panel | Industrial Human-Machine Interface |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on microwave oven or washing machine control panel operating in humid, EMI-noisy environments. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, managing user input, driving display backlight via PWM, and communicating via I²C to main controller. Use Value: CSD engine's water tolerance and >80 dB SNR enable reliable touch detection through glass overlays and condensation, reducing false triggers by >95% vs. legacy RC-based solutions. | Use Scenario: Compact HMI module for PLC-mounted status indicators and parameter adjustment dials in factory automation cabinets. IC Role / Device Role / Timing Role: Standalone touch controller interfacing with host PLC via isolated I²C; manages LED feedback and rotary encoder emulation using TCPWM quadrature generation. Use Value: Deep Sleep + I²C address match reduces average system power to <5 µA during idle, extending battery backup life beyond 10 years in maintenance-free installations. |
| Medical Wearable Sensor Hub | Smart Lighting Dimmer Switch |
Use Scenario: Ultra-low-power wearable patch monitoring skin impedance and temperature, powered by CR2032 coin cell. IC Role / Device Role / Timing Role: System controller acquiring analog sensor data via IDAC-biased electrodes, processing CapSense for buttonless interaction, and transmitting via BLE companion MCU. Use Value: 1.3 µA Deep Sleep current with ILO + WDT active enables >3-year battery life; integrated comparator replaces external op-amp for analog threshold detection. | Use Scenario: Retrofit wall dimmer switch replacing mechanical potentiometer with capacitive slider and zero-crossing TRIAC control. IC Role / Device Role / Timing Role: Touch controller and AC phase-control generator; uses TCPWM in center-aligned mode to precisely gate TRIAC firing angle based on slider position. Use Value: Hardware TCPWM eliminates software timing jitter in phase-angle control, achieving <0.5% dimming resolution and flicker-free LED load compatibility. |
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 |
|---|---|---|---|
| STM32G031F8P6 | ARM Cortex-M0+, 64 MHz max, no integrated CapSense; requires external touch controller or software-based solution. | Lacks hardware-accelerated capacitive sensing; suitable for non-touch or low-channel-count touch systems where BOM cost is prioritized over development time. | Select when touch functionality is secondary and existing firmware expertise favors ST's HAL ecosystem over PSoC Creator. |
| MAX32620FTHR | ARM Cortex-M4F, 96 MHz, integrated ADC/DAC but no dedicated CapSense engine; relies on software correlation algorithms. | Higher compute headroom for sensor fusion, but CapSense SNR and water tolerance inferior to CSD; lacks SmartSense™ auto-calibration. | Prefer when simultaneous multi-sensor acquisition (e.g., ECG + temp + motion) is required and touch is auxiliary rather than primary interface. |
Compared with STM32G031F8P6 and MAX32620FTHR, CY8C4014LQI-412T uniquely delivers production-ready capacitive sensing with hardware auto-tuning, sub-µA Deep Sleep with I²C wake-up, and unified schematic/firmware design in PSoC Creator-reducing time-to-market for touch-centric embedded products by 3–6 months.
Availability
CY8C4014LQI-412T is available at Aetrix Electronics and suitable for home appliance touch panels, industrial HMIs, medical wearables, and smart lighting dimmers requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4014LQI-412T 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 AG is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, connectivity, and microcontroller solutions for industrial, automotive, and IoT markets.
CY8C4014LQI-412T belongs to the PSoC 4000 family-a cost-optimized, ultra-low-power programmable SoC line designed specifically for capacitive touch interfaces, simple motor control, and sensor-hub applications where integration, development speed, and power efficiency are critical.
FAQ
What development tools are required to program and debug CY8C4014LQI-412T?
PSoC Creator IDE (free Windows-based tool) is mandatory for schematic-based hardware configuration and component API generation. Programming and debug use standard Arm Serial-Wire Debug (SWD) via MiniProg3 or KitProg2/3 programmers. No JTAG adapter is needed-SWD is fully compatible with third-party tools like Segger J-Link and OpenOCD.
Does CY8C4014LQI-412T support true hardware AES encryption or secure boot?
No. CY8C4014LQI-412T does not include dedicated cryptographic accelerators or secure boot ROM. It offers flash row protection, debug disable, and device security lock (disabling all programming interfaces), but lacks hardware AES, SHA, or TRNG. For secure boot requirements, consider Infineon's PSoC 4100S Plus or PSOC 6 series.
Can the IDACs be used for precision analog current output beyond CapSense?
Yes. Each IDAC delivers 0.125–8 mA full-scale output with ±5% accuracy referenced to internal 1.2 V bandgap. They support voltage-controlled current sourcing/sinking and can drive external transimpedance amplifiers or bias photodiodes-though external calibration is recommended for <1% absolute accuracy.
Is the 24-pin QFN package of CY8C4014LQI-412T compatible with reflow soldering per IPC-J-STD-020?
Yes. The 24-pin QFN (4 × 4 mm, 0.5 mm pitch) meets IPC-J-STD-020D moisture sensitivity level 3 (MSL3) and supports standard lead-free reflow profiles (peak 260°C). The exposed thermal pad must be soldered to a solid copper pour with ≥6 thermal vias for mechanical reliability and thermal performance.
CY8C4014LQI-412T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4000
- Packaging:
- Tape & Reel (TR)
- 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:
- 20
- Program Memory Size:
- 16KB (16K 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:
CY8C4014LQI-412T FAQ
1.How can I place an order for CY8C4014LQI-412T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4014LQI-412T 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 CY8C4014LQI-412T reliable?
The price and inventory of CY8C4014LQI-412T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4014LQI-412T is usually 5 days.
3.What payment methods are accepted for CY8C4014LQI-412T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4014LQI-412T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4014LQI-412T?
CY8C4014LQI-412T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4014LQI-412T 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 CY8C4014LQI-412T?
For technical support, including CY8C4014LQI-412T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4014LQI-412T requirements.
6.How does Aetrix verify that CY8C4014LQI-412T is sourced from the original manufacturer or authorized distributors?
All CY8C4014LQI-412T 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 CY8C4014LQI-412T meets industry standards.
7.What is the process for return or replacement of CY8C4014LQI-412T?
All CY8C4014LQI-412T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4014LQI-412T, 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 CY8C4014LQI-412T part is unused and in its original packaging.
Return procedure for CY8C4014LQI-412T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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