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Infineon Technologies CY8C4744FNI-S402T
- Part No.:
- CY8C4744FNI-S402T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 25-XFBGA, WLCSP
- Datasheet:
-
CY8C4744FNI-S402T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 25WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,025
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Product details
Overview
CY8C4744FNI-S402T from Infineon Technologies (formerly Cypress) is a programmable 32-bit Arm® Cortex®-M0+ microcontroller in the PSoC 4700S family, integrating MagSense™ inductive sensing and CapSense® capacitive sensing on a single die. It features 48 MHz CPU, 32 KB flash, 4 KB SRAM, up to 16 inductive sensors, and operates from 1.71–5.5 V. It targets metal proximity detection in industrial HMI and touchless control systems.
For engineers reviewing the CY8C4744FNI-S402T datasheet, CY8C4744FNI-S402T pinout, CY8C4744FNI-S402T application, or CY8C4744FNI-S402T equivalent, key selection criteria include integrated MagSense/ CapSense coexistence, Deep Sleep current of 2.5 µA with analog operation, TCPWM kill-signal triggering for motor safety, and dual SCB blocks supporting runtime-reconfigurable I²C/SPI/UART.
Technical Context
The device implements a tightly coupled Arm Cortex-M0+ core with hardware-accelerated analog/digital routing via the PSoC interconnect fabric. Its clock system combines a 24–48 MHz IMO (±2% trimmed), 32 kHz WCO, and 40 kHz ILO - enabling synchronized low-power operation across MagSense, CapSense, and TCPWM peripherals.
MagSense sensing uses dedicated inductance-to-digital conversion circuitry with automatic calibration against manufacturing variation, while CapSense employs Sigma-Delta (CSD) architecture delivering >5:1 SNR and water-tolerant operation. Both subsystems share GPIO resources but operate independently under SmartIO-controlled routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables real-time sensor fusion without external DSP. |
| Flash / SRAM | 32 KB flash with Read Accelerator / 4 KB zero-wait-state SRAM - supports firmware updates and local sensor data buffering. |
| Inductive Sensing | Up to 16 MagSense channels - detects sub-190 nm metal deflection with factory-calibrated noise immunity. |
| Capacitive Sensing | CapSense CSD with SmartSense auto-tuning - achieves >5:1 SNR and tolerates conductive contaminants like water or oil. |
| Power Modes | Deep Sleep at 2.5 µA with active analog - sustains continuous metal/non-metal presence monitoring without wake-up latency. |
| Communication | 2× SCBs supporting I²C/SPI/UART reconfiguration at runtime - simplifies interface adaptation across host protocols. |
| TCPWM Blocks | 5× 16-bit timer/counter/PWM units with comparator-triggered kill signals - enables safe motor control with hardware-enforced fault response. |
Pinout & Package
CY8C4744FNI-S402T is housed in a 48-pin TQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. All 36 GPIOs support configurable drive modes, slew rates, and analog/digital/MagSense/CapSense functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 1.71–5.5 V rail powers entire chip; VSS reference for all analog/digital domains. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; asserts full system reset including flash controller and clock system. |
| SWDCK / SWDIO | Debug interface | Two-pin Serial Wire Debug port - enables full firmware debug, flash programming, and real-time register inspection. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIO | 36 pins total; any can serve as CapSense electrode, MagSense coil driver, ADC input, or digital I/O with programmable drive strength. |
| WCO_IN / WCO_OUT | 32 kHz crystal oscillator | Connects to external 32.768 kHz tuning-fork crystal - provides precision timing for RTC, watchdog, and low-power sleep synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MagSense + CapSense | Enables dual-modality object detection (metal + non-metal) on one chip without external signal conditioning or calibration hardware. |
| SmartIO Boolean Logic | Permits hardware-level logic operations (AND/OR/XOR) on GPIO signals - offloads CPU for real-time sensor preprocessing. |
| Deep Sleep with Analog Active | Maintains MagSense/CapSense monitoring at 2.5 µA while keeping comparators and IDACs operational - eliminates polling overhead and extends battery life. |
| Runtime-Reconfigurable SCBs | Each Serial Communication Block dynamically switches between I²C master/slave, SPI master/slave, or UART modes - reduces BOM count and PCB footprint. |
| TCPWM Kill Signal Triggering | Hardware comparator output directly disables PWM outputs within one clock cycle - meets functional safety requirements for motor-driven actuators. |
Applications
| Industrial HMI Panels | Medical Device Controls |
|---|---|
Use Scenario: Touchless button and slider interfaces on sealed control panels in dusty or wet environments. IC Role / Device Role / Timing Role: Primary MCU executing sensor fusion firmware, managing MagSense metal proximity and CapSense gesture recognition simultaneously. Use Value: Eliminates mechanical wear and ingress points by replacing physical buttons with robust inductive/capacitive overlay sensing. | Use Scenario: Sterile-field-compatible equipment controls requiring glove-operable, fluid-resistant interfaces. IC Role / Device Role / Timing Role: Real-time sensor hub processing simultaneous metal tool detection (MagSense) and hand proximity (CapSense) for context-aware UI activation. Use Value: Achieves >5:1 SNR and water tolerance per CapSense CSD, ensuring reliable operation during saline solution exposure. |
| Automotive Cabin Sensors | Appliance Proximity Interfaces |
Use Scenario: Occupant detection and seatbelt reminder using hidden inductive coils beneath upholstery. IC Role / Device Role / Timing Role: Low-power always-on sensor node detecting metallic belt buckles and ferrous seat components via MagSense. Use Value: Sub-190 nm deflection sensitivity enables detection through foam, fabric, and plastic layers without compromising accuracy. | Use Scenario: Hands-free activation of oven/microwave controls when users approach the appliance front panel. IC Role / Device Role / Timing Role: Standalone proximity monitor using MagSense for metal utensil detection and CapSense for hand presence. Use Value: Dual-sensing modality prevents false triggers from ambient moisture or nearby conductive objects. |
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-S402T | Same die, 48-pin QFN package (6 × 6 mm), no exposed thermal pad - lower thermal resistance but requires different PCB layout. | Limited to space-constrained designs where TQFP rework or thermal management is impractical. | Select for compact consumer electronics where board area is critical and thermal dissipation is managed via copper pour. |
| CY8C4744LQI-S402T | Same functionality, 25-ball WLCSP package (2.5 × 2.5 mm) - ultra-small footprint but requires microvias and advanced assembly. | Targeted at wearable or implantable devices where volume and weight are primary constraints. | Choose only with qualified WLCSP assembly capability and when size reduction justifies increased manufacturing complexity. |
Compared with CY8C4744AZI-S402T and CY8C4744LQI-S402T, the CY8C4744FNI-S402T offers optimal balance of thermal performance, reworkability, and PCB design flexibility in industrial and medical HMI applications - especially where long-term serviceability and manual inspection are required.
Availability
CY8C4744FNI-S402T is available at Aetrix Electronics and suitable for industrial HMI panels, medical device controls, automotive cabin sensors, and appliance proximity interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4744FNI-S402T 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, and microcontroller solutions for industrial, automotive, and IoT applications.
The PSoC 4700S product line was developed to deliver integrated mixed-signal programmability for touchless human-machine interaction - combining high-precision inductive and capacitive sensing with Arm-based real-time control in a single-chip solution.
FAQ
What development tools are required to program CY8C4744FNI-S402T?
PSoC Creator IDE (free Windows-based tool) is mandatory for hardware configuration and component-based firmware generation. It provides schematic entry, automatic analog/digital routing, and pre-verified MagSense/CapSense components. ARM GCC or Keil MDK may be used for custom C code, but PSoC Creator must generate the startup and peripheral initialization code.
Does CY8C4744FNI-S402T support USB connectivity?
No, CY8C4744FNI-S402T does not include a USB PHY or dedicated USB controller. Communication is limited to the two SCB blocks supporting I²C, SPI, or UART protocols. For USB host/device functionality, an external USB-to-UART bridge IC (e.g., CP2102N) or migration to PSoC 4100S/4200S series is required.
Can MagSense and CapSense operate simultaneously without interference?
Yes - MagSense and CapSense subsystems use independent clock domains, dedicated sigma-delta modulators, and time-multiplexed GPIO routing. The PSoC 4700S TRM confirms hardware-level isolation with no shared analog front-end resources, enabling concurrent metal and non-metal detection at full update rates.
What is the maximum operating temperature for CY8C4744FNI-S402T in industrial applications?
CY8C4744FNI-S402T is rated for –40 °C to +85 °C ambient operating temperature per its Industrial grade qualification. This range is validated across all specified electrical parameters, including MagSense sensitivity, CapSense SNR, and Deep Sleep current, with no derating required up to 85 °C.
CY8C4744FNI-S402T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 25-XFBGA, WLCSP
- Series:
- PSOC™ 4 CY8C4700S
- Packaging:
- Tape & Reel (TR)
- 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:
- 21
- 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:
CY8C4744FNI-S402T FAQ
1.How can I place an order for CY8C4744FNI-S402T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4744FNI-S402T 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 CY8C4744FNI-S402T reliable?
The price and inventory of CY8C4744FNI-S402T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4744FNI-S402T is usually 5 days.
3.What payment methods are accepted for CY8C4744FNI-S402T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4744FNI-S402T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4744FNI-S402T?
CY8C4744FNI-S402T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4744FNI-S402T 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 CY8C4744FNI-S402T?
For technical support, including CY8C4744FNI-S402T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4744FNI-S402T requirements.
6.How does Aetrix verify that CY8C4744FNI-S402T is sourced from the original manufacturer or authorized distributors?
All CY8C4744FNI-S402T 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 CY8C4744FNI-S402T meets industry standards.
7.What is the process for return or replacement of CY8C4744FNI-S402T?
All CY8C4744FNI-S402T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4744FNI-S402T, 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 CY8C4744FNI-S402T part is unused and in its original packaging.
Return procedure for CY8C4744FNI-S402T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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