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Infineon Technologies CY8C4744LQI-S401
- Part No.:
- CY8C4744LQI-S401
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY8C4744LQI-S401.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,469
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Product details
Overview
CY8C4744LQI-S401 from Infineon Technologies (formerly Cypress Semiconductor) is a programmable 32-bit Arm Cortex-M0+ microcontroller with integrated MagSense™ inductive sensing and CapSense® capacitive sensing. It features 48 MHz CPU, 32 KB flash, 4 KB SRAM, up to 16 inductive sensors, and dual reconfigurable SCBs supporting I²C/SPI/UART. Used in metal-detecting proximity interfaces and multi-modal human-machine interfaces.
For engineers reviewing the CY8C4744LQI-S401 datasheet, CY8C4744LQI-S401 pinout, CY8C4744LQI-S401 application, or CY8C4744LQI-S401 equivalent, key selection criteria include inductive sensing resolution (<190 nm metal deflection), CapSense SNR (>5:1), Deep Sleep current (2.5 µA), TCPWM kill-signal triggering for motor control, and 1.71–5.5 V wide supply operation.
Technical Context
The device integrates a single-layer AHB interconnect linking the Cortex-M0+ core, flash accelerator, and SRAM with dedicated analog/digital subsystems. Its clock architecture combines IMO (24–48 MHz, ±2%), ILO (40 kHz), and WCO (32 kHz) with eight programmable dividers-including two fractional-enabling precise peripheral clocking.
Analog resources include two low-power comparators operating in Deep Sleep mode, one 10-bit single-slope ADC, and two IDACs referenced to ±5% internal voltage. Digital peripherals feature five 16-bit TCPWM blocks with center-aligned/edge/pseudo-random PWM modes and comparator-triggered kill signals for safety-critical timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables real-time sensor fusion and deterministic interrupt response in embedded HMI. |
| Flash / SRAM | 32 KB flash with Read Accelerator / 4 KB SRAM - supports firmware updates and runtime data buffering without external memory. |
| Inductive Sensing | Up to 16 MagSense channels - detects sub-190 nm metal deflection with automatic calibration for production tolerance compensation. |
| Capacitive Sensing | CapSense Sigma-Delta (CSD) with >5:1 SNR - delivers water-tolerant touch detection on curved or sealed surfaces. |
| Power Modes | Deep Sleep at 2.5 µA digital current - sustains analog monitoring while minimizing battery drain in portable industrial sensors. |
| Communication | 2 × SCBs, reconfigurable as I²C/SPI/UART - allows dynamic protocol switching per interface requirement without hardware change. |
| PWM Timing | 5 × 16-bit TCPWM with comparator-based kill signal - enables safe, fast shutdown in motor drive or power converter feedback loops. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers all digital and analog blocks including MagSense and CapSense. |
| VSS | Ground reference | Common return path for analog and digital domains; requires separate AGND/DGND layout per TRM guidelines. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; asserts full system reset including flash controller and clock system. |
| SWDIO / SWCLK | Debug interface pins | Supports serial wire debug (SWD) programming and real-time trace; compatible with standard Arm Cortex-M debug probes. |
| P0[0]–P0[7] | Programmable GPIO bank | Each pin configurable as CapSense electrode, MagSense coil driver, analog input, or digital I/O with programmable drive strength/slew rate. |
| SCB0_SDA / SCB0_SCL | I²C interface signals | Default I²C pins for SCB0; can be remapped to other GPIOs via hardware routing matrix in PSoC Creator. |
Key Features
| Feature | Design Value |
|---|---|
| MagSense inductive sensing | Enables contactless metal detection through plastic/metal enclosures with factory-calibrated immunity to EMI and temperature drift. |
| CapSense SmartSense auto-tuning | Eliminates manual tuning by dynamically adjusting sensor parameters during operation to maintain stable SNR across environmental changes. |
| Programmable analog blocks | Includes two low-power comparators active in Deep Sleep and one 10-bit ADC - supports always-on threshold monitoring without waking CPU. |
| SmartIO Boolean logic | Permits combinational logic (AND/OR/XOR) on GPIO inputs/outputs without CPU intervention - reduces latency in real-time signal conditioning. |
| Flexible clocking | Eight clock dividers (two fractional) allow independent, glitch-free clock generation for each peripheral - critical for mixed-signal timing integrity. |
Applications
| Industrial Proximity Switch | Waterproof Touch Interface |
|---|---|
Use Scenario: Detecting metal presence in harsh factory environments where oil, dust, or vibration preclude mechanical switches. IC Role / Device Role / Timing Role: MCU + inductive sensor front-end; performs real-time MagSense signal processing and IO control with <35 µs Deep Sleep wake-up. Use Value: Eliminates moving parts and maintenance; achieves sub-micron detection resolution under EMI-rich conditions. | Use Scenario: User interface on medical devices requiring sealed, washable front panels resistant to moisture and glove operation. IC Role / Device Role / Timing Role: Capacitive sensing controller with CSD engine and SmartSense auto-calibration; operates continuously in low-power active mode. Use Value: Maintains >5:1 SNR despite condensation or saline exposure, enabling reliable gesture recognition without false triggers. |
| Motor Control Safety Monitor | Multi-Function Industrial HMI |
Use Scenario: Monitoring rotor position and overcurrent in BLDC drives where rapid fault shutdown is required to prevent winding damage. IC Role / Device Role / Timing Role: Real-time PWM generator with TCPWM kill-signal triggered by comparator output - bypasses CPU for <100 ns response. Use Value: Enables hardware-level protection independent of firmware execution, meeting IEC 61800-5-2 functional safety requirements. | Use Scenario: Operator panel combining push-button emulation, rotary encoder input, and LCD segment driving in compact machinery controls. IC Role / Device Role / Timing Role: Integrated MCU with GPIO multiplexing, LCD segment drivers, and dual SCBs - consolidates discrete interface ICs into single chip. Use Value: Reduces BOM count by 4+ components and PCB area by >30%, while enabling field-upgradable UI behavior via flash reprogramming. |
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 |
|---|---|---|---|
| CY8C4744AZI-S401 | Same die, 48-pin QFN package (6 mm × 6 mm); no exposed thermal pad; slightly higher thermal resistance. | Better suited for space-constrained PCBs where TQFP footprint is prohibitive; less effective for high-duty-cycle analog operation due to thermal limits. | Select when board area is primary constraint and peak analog throughput is moderate. |
| CY8C4744LQI-S402 | Identical package and pinout; differs only in factory-programmed flash content (bootloader version and default CapSense tuning). | Designed for certified medical or automotive qualification paths requiring traceable firmware baseline; not interchangeable without revalidation. | Select only when regulatory compliance mandates specific firmware revision or security configuration. |
Compared with CY8C4744AZI-S401 and CY8C4744LQI-S402, the CY8C4744LQI-S401 offers optimal thermal performance in TQFP packaging for sustained MagSense/CapSense co-operation, while maintaining full pin compatibility and identical runtime firmware behavior.
Availability
CY8C4744LQI-S401 is available at Aetrix Electronics and suitable for industrial proximity sensing, waterproof HMI design, motor safety monitoring, and multi-function control panels requiring stable component supply across long-lifecycle programs.
Supply support for CY8C4744LQI-S401 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 owns and supports the full PSoC portfolio, delivering high-reliability mixed-signal solutions for industrial, automotive, and IoT markets.
The PSoC 4700S product line was designed specifically to integrate inductive and capacitive sensing into a single low-power MCU, targeting next-generation human-machine interfaces that require robust, maintenance-free object detection across material types.
FAQ
What development tools are required to program CY8C4744LQI-S401?
PSoC Creator IDE (free, Windows-only) is mandatory for schematic-based hardware configuration and component-based firmware generation. Programming requires a KitProg2 or KitProg3 debugger; SWD interface supports standard Arm Cortex-M debuggers like Segger J-Link. No third-party toolchain is needed for initial bring-up.
Does CY8C4744LQI-S401 support USB connectivity?
No, CY8C4744LQI-S401 lacks native USB PHY or controller. Communication is limited to its two SCBs configured as I²C, SPI, or UART. For USB host/device functionality, an external bridge IC (e.g., CP2102N) or migration to PSoC 4100S/4200S series is required.
Can MagSense and CapSense operate simultaneously on CY8C4744LQI-S401?
Yes - the analog subsystem supports concurrent MagSense coil excitation and CapSense electrode scanning using time-division multiplexing. PSoC Creator's Component Catalog includes pre-verified MagSense+CapSense projects demonstrating synchronized operation with shared clock and resource arbitration.
What is the maximum operating temperature for continuous MagSense operation?
The device is rated for industrial temperature range (–40 °C to +85 °C). Continuous MagSense operation at 85 °C is validated per datasheet Section 14.2; thermal derating is not required below 100% duty cycle, but coil driver efficiency decreases ~0.3%/°C above 60 °C ambient.
CY8C4744LQI-S401 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4700S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 19
- 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:
- A/D 16x10b; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4744LQI-S401 FAQ
1.How can I place an order for CY8C4744LQI-S401 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4744LQI-S401 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 CY8C4744LQI-S401 reliable?
The price and inventory of CY8C4744LQI-S401 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4744LQI-S401 is usually 5 days.
3.What payment methods are accepted for CY8C4744LQI-S401?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4744LQI-S401 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4744LQI-S401?
CY8C4744LQI-S401 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4744LQI-S401 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 CY8C4744LQI-S401?
For technical support, including CY8C4744LQI-S401 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4744LQI-S401 requirements.
6.How does Aetrix verify that CY8C4744LQI-S401 is sourced from the original manufacturer or authorized distributors?
All CY8C4744LQI-S401 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 CY8C4744LQI-S401 meets industry standards.
7.What is the process for return or replacement of CY8C4744LQI-S401?
All CY8C4744LQI-S401 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4744LQI-S401, 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 CY8C4744LQI-S401 part is unused and in its original packaging.
Return procedure for CY8C4744LQI-S401:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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