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Infineon Technologies CY8C4014SXI-420
- Part No.:
- CY8C4014SXI-420
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY8C4014SXI-420.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,107
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Product details
Overview
CY8C4014SXI-420 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 current DACs (IDACs), one low-power comparator, and a 16-bit TCPWM block. It operates from 1.71 V to 5.5 V and supports Deep Sleep wake-up via I²C address match or interrupt - used in touch-enabled human interface modules for industrial HMIs and consumer appliances.
For engineers reviewing the CY8C4014SXI-420 datasheet, CY8C4014SXI-420 pinout, CY8C4014SXI-420 application, or CY8C4014SXI-420 equivalent, key selection criteria include its 20 GPIO count, CapSense SNR performance, I²C wake capability in Deep Sleep, and compatibility with PSoC Creator schematic-based design flow.
Technical Context
The device integrates a single-core Arm Cortex-M0 CPU running at up to 16 MHz, with flash read accelerator enabling zero-wait-state execution. Its analog subsystem centers on CapSense CSD architecture delivering >100 dB SNR and SmartSense™ automatic tuning across 5–45 pF sensor range.
Digital resources include one multi-mode TCPWM block supporting center-aligned/edge/Pseudo-Random PWM, comparator-triggered kill signals for motor control safety, and a single SCB-I²C block capable of address-match wake-up during Deep Sleep with 35 µs wake latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 16 MHz max - enables binary-compatible migration to Cortex-M3/M4 and deterministic real-time response. |
| Flash / SRAM | 16 KB flash with Read Accelerator, 2 KB SRAM - supports firmware storage and runtime variables with zero-wait-state access at full speed. |
| Capacitive Sensing | CapSense Sigma-Delta (CSD) with SmartSense™ - delivers production-ready touch performance without manual calibration across environmental drift. |
| I/O Pins | 20 programmable GPIO - configurable as CapSense, I²C, PWM, or digital logic with drive strength/slew rate control. |
| Power Modes | Active, Sleep, Deep Sleep - Deep Sleep draws <1.3 µA and wakes in 35 µs via I²C address match or interrupt. |
| Communication | Single SCB-I²C block - supports multi-master operation and Deep Sleep wake-up using slave address detection. |
| Analog Peripherals | 2 × IDACs (±5% reference accuracy), 1 × low-power comparator (1.2 V internal ref) - enables self-capacitance/touch button sensing and threshold monitoring. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Integrated Circuit), body size 10.2 mm × 5.3 mm, 0.635 mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers all digital and analog blocks including CapSense modulator. |
| GND | Ground reference | Common return path for analog/digital domains; critical for CapSense noise immunity and ADC stability. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures defined state on power-up in 28-pin package. |
| P0[0]–P0[7] | Port 0 GPIO bank | Eight pins supporting CapSense, I²C SDA/SCL, TCPWM outputs, and interrupt generation. |
| P1[0]–P1[7] | Port 1 GPIO bank | Eight pins with CapSense, analog comparator inputs, IDAC outputs, and deep-sleep wake sources. |
| P2[0]–P2[3] | Port 2 GPIO bank | Four pins supporting TCPWM, comparator output routing, and general-purpose I/O with programmable drive modes. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense CSD Engine | Hardware-accelerated sigma-delta modulation with >100 dB SNR - eliminates need for external filtering or shielding in wet environments. |
| SmartSense™ Auto-Tuning | Firmware-transparent calibration over 5–45 pF sensor range - reduces BOM cost by removing manual trim components and test time. |
| Deep Sleep I²C Wake | SCB-I²C detects own slave address while CPU and flash are powered down - enables ultra-low-power remote command reception without external wake controller. |
| Programmable Routing Matrix | Hardware interconnect between peripherals and GPIOs - allows dynamic reassignment of TCPWM, IDAC, or comparator signals to any pin without PCB redesign. |
| SWD Debug Interface | 2-wire Serial Wire Debug with 4 breakpoint/2 watchpoint comparators - enables full on-chip debugging in final product without JTAG header or debug pod. |
Applications
| Industrial HMI Panels | Smart Appliance Touch Controls |
|---|---|
Use Scenario: Touch-sensitive operator interface on PLC-mounted display panels exposed to EMI and temperature cycling. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, managing I²C communication with display driver, and generating PWM for backlight dimming. Use Value: CSD engine's water tolerance and SmartSense™ eliminate false triggers during condensation; Deep Sleep mode extends battery life in portable diagnostic tools. | Use Scenario: Waterproof touch buttons on refrigerator door or washing machine control panel. IC Role / Device Role / Timing Role: Dedicated capacitive sensing controller interfacing with appliance main MCU via I²C; handles raw sensor data and gesture processing. Use Value: Hardware CSD + 1.2 V comparator reference ensures stable operation across 1.71–5.5 V supply range and wide temperature (-40°C to +85°C). |
| Medical Device Keypads | IoT Sensor Node Controllers |
Use Scenario: Sterilizable touch interface on infusion pump or patient monitor requiring high reliability and ESD immunity. IC Role / Device Role / Timing Role: Isolated touch controller with dedicated IDACs driving shielded electrodes; communicates status via I²C to host MCU. Use Value: ±5% IDAC reference accuracy and comparator-based threshold detection meet IEC 60601-1 leakage current requirements. | Use Scenario: Battery-powered environmental sensor node with capacitive wake button and periodic BLE advertisement. IC Role / Device Role / Timing Role: Low-power system orchestrator: manages CapSense wake event, samples sensors via IDAC-assisted measurement, and triggers BLE MCU via GPIO. Use Value: <1.3 µA Deep Sleep current and 35 µs wake latency enable multi-year battery life while maintaining responsive user interaction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4014LQI-421 | Same core and peripherals, but in 24-pin QFN package with no XRES pin and reduced GPIO count (16 total) | Lacks external reset pin and two GPIOs; unsuitable where board-level reset control or >16 I/Os are required | Select when space-constrained layout favors QFN and external reset is handled elsewhere |
| STM32G031F8P6 | Arm Cortex-M0+, 64 KB flash, no integrated CapSense; requires external touch controller or software-based solution | Higher flash and clock speed, but adds BOM cost and firmware complexity for touch functionality | Select when non-capacitive HMI or pure control tasks dominate and touch is secondary or absent |
Compared with CY8C4014LQI-421, the CY8C4014SXI-420 offers XRES support and four additional GPIOs in SSOP; versus STM32G031F8P6, it delivers hardware-accelerated CapSense with no external components or CPU overhead - critical for robust, low-power touch interfaces.
Availability
CY8C4014SXI-420 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance touch controls, and medical device keypads requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CY8C4014SXI-420 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 and manufactures PSoC devices for embedded mixed-signal applications requiring programmable analog and digital integration.
The PSoC 4000 family targets cost-sensitive, space-constrained systems needing capacitive touch, low-power operation, and rapid firmware-hardware co-design - especially in appliance, industrial, and medical UIs.
FAQ
What development tools are required to program CY8C4014SXI-420?
PSoC Creator - a free Windows-based IDE - is required for schematic-driven hardware configuration and firmware generation. It auto-generates APIs for CapSense, TCPWM, and I²C peripherals. Programming uses MiniProg3 or KitProg2 via SWD interface; no external programmer is needed beyond standard USB connection.
Does CY8C4014SXI-420 support hardware-based touch button debouncing?
Yes - the CapSense CSD block performs continuous baseline tracking and noise rejection in hardware. SmartSense™ automatically adjusts scan parameters to maintain stable finger detection without firmware-level debounce logic, reducing CPU load and improving response consistency across varying environmental conditions.
Can the IDACs be used for analog sensor excitation beyond CapSense?
Yes - both IDACs support 0–1.2 mA output with ±5% accuracy referenced to internal 1.2 V bandgap. They are commonly used to excite resistive or capacitive bridge sensors, drive LED bias circuits, or generate precision current sources for transimpedance amplifiers in gas or humidity sensing applications.
Is debug access retained after enabling device security features?
No - when maximum device security is enabled, all programming, debug, and test interfaces (including SWD) are permanently disabled. Debug can only be disabled in firmware; re-enabling it requires full flash erase, clearing protection bits, and reprogramming - making secure devices untestable in failure analysis without prior provisioning.
CY8C4014SXI-420 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- PSOC™ 4 CY8C4000
- Packaging:
- Tube
- 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:
- 5
- 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:
CY8C4014SXI-420 FAQ
1.How can I place an order for CY8C4014SXI-420 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4014SXI-420 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 CY8C4014SXI-420 reliable?
The price and inventory of CY8C4014SXI-420 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4014SXI-420 is usually 5 days.
3.What payment methods are accepted for CY8C4014SXI-420?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4014SXI-420 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4014SXI-420?
CY8C4014SXI-420 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4014SXI-420 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 CY8C4014SXI-420?
For technical support, including CY8C4014SXI-420 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4014SXI-420 requirements.
6.How does Aetrix verify that CY8C4014SXI-420 is sourced from the original manufacturer or authorized distributors?
All CY8C4014SXI-420 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 CY8C4014SXI-420 meets industry standards.
7.What is the process for return or replacement of CY8C4014SXI-420?
All CY8C4014SXI-420 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4014SXI-420, 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 CY8C4014SXI-420 part is unused and in its original packaging.
Return procedure for CY8C4014SXI-420:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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