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Infineon Technologies CY8C4747LQS-S453T
- Part No.:
- CY8C4747LQS-S453T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4747LQS-S453T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
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Product details
Overview
CY8C4747LQS-S453T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 8 KB SRAM, and integrated oscillator-based inductive sensing + CAPSENSE™ capacitive sensing. It delivers metal object detection with <190 nm deflection resolution and >5:1 SNR water-tolerant touch sensing, deployed in vehicle door handle proximity systems.
For engineers reviewing the CY8C4747LQS-S453T datasheet, CY8C4747LQS-S453T pinout, CY8C4747LQS-S453T application, or CY8C4747LQS-S453T equivalent, key selection criteria include its dual-sensing capability (inductive + capacitive), deep-sleep current of 2.5 µA, 34 GPIO with 19 smart I/O pins, and LIN slave support via reconfigurable SCBs.
Technical Context
This MCU implements a unified programmable analog-digital architecture: two opamps support ADC input buffering and operate in deep-sleep mode; the 12-bit 1-Msps SAR ADC includes channel sequencer and signal averaging; the capacitance sensing block provides a dedicated 10-bit single-slope ADC for CAPSENSE™.
The digital subsystem integrates eight TCPWM blocks with quadrature decode and comparator-triggered kill signals for motor control safety, plus five reconfigurable Serial Communication Blocks (SCBs) supporting I²C, SPI, UART, or LIN slave - all runtime reprogrammable without reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution for automotive body control tasks |
| Flash / SRAM | 128 KB flash with read accelerator / 8 KB SRAM - supports secure bootloader, firmware updates, and sensor fusion buffers |
| Inductive Sensing | Oscillator-based, up to 4 sensors, <190 nm metal deflection detection - eliminates external inductor drivers for compact proximity modules |
| CAPSENSE™ | Sigma-delta CSD with >5:1 SNR and SmartSense auto-tuning - achieves reliable touch operation under condensation or thin glove use |
| Power Modes | Deep sleep at 2.5 µA system current with active analog - sustains always-on proximity wake-up with minimal battery drain |
| GPIO / Smart I/O | 34 programmable GPIO, 19 configurable as Smart I/O - enables Boolean logic offload from CPU for low-latency event handling |
| Clock Sources | 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, 32-kHz ILO - supports fail-safe clock monitoring and seamless clock domain switching |
Pinout & Package
40-pin QFN (6 × 6 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pin functions validated per Infineon datasheet Rev. *C, Section 3 "Pinouts".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supply rails per port group - enables mixed-voltage interface (e.g., 3.3 V MCU core + 5 V sensor bus) |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 34 pins support CAPSENSE™, analog input, or digital I/O - no fixed-function pin constraints simplify PCB layout |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO with internal load capacitance tuning - eliminates external caps for cost-sensitive designs |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC operation and low-power wake-up timing independent of main clock - critical for periodic sensor polling in sleep mode |
| SWDCK / SWDIO | ARM Serial Wire Debug interface | Two-pin debug port supporting full programming, trace, and real-time variable inspection - reduces test point count vs JTAG |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator-based inductive sensing | Detects metal displacement <190 nm without external oscillator IC - reduces BOM count and EMI susceptibility in door handle modules |
| CAPSENSE™ SmartSense auto-tuning | Hardware-accelerated calibration compensates for PCB stackup, overlay thickness, and temperature drift - eliminates manual tuning in production |
| Smart I/O logic | 19 pins execute Boolean operations (AND/OR/XOR) in hardware - enables wake-on-gesture without CPU wake-up, cutting average system power |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C/SPI/UART/LIN slave - allows single hardware design to serve multiple vehicle ECUs (e.g., seat, door, lighting) |
| Deep-sleep analog retention | Opamps, comparators, and ADC remain active at 2.5 µA - supports continuous proximity monitoring during vehicle sleep mode |
Applications
| Vehicle Door Handle Proximity | Capacitive Touch Dashboard Controls |
|---|---|
Use Scenario: Passive entry system detects hand approach within 5 cm of door handle to trigger unlock sequence. IC Role / Device Role / Timing Role: Dual-sensing hub - inductive channel detects metal hand presence; CAPSENSE™ rejects false triggers from rain or debris. Use Value: Achieves <190 nm metal deflection sensitivity and >5:1 SNR under wet conditions - meets OEM IPX6-rated reliability requirements. | Use Scenario: Driver interacts with non-backlit, glass-covered HVAC sliders and buttons in cabin. IC Role / Device Role / Timing Role: CAPSENSE™ sigma-delta frontend with SmartSense auto-calibration manages overlay thickness variation and temperature drift. Use Value: Maintains consistent touch response across –40°C to +105°C ambient and through 3 mm polycarbonate overlay - eliminates field returns for unresponsive controls. |
| Automotive Seat Occupancy Detection | LIN Slave Node for Interior Lighting |
Use Scenario: Detects occupant presence and posture via embedded inductive coils in seat cushion foam. IC Role / Device Role / Timing Role: Inductive sensing controller with automatic manufacturing variation compensation using on-chip oscillator calibration. Use Value: Compensates for coil winding tolerance and foam compression variance - achieves ±2% repeatability across 10-year vehicle life. | Use Scenario: Ambient LED strip dimming and color control synchronized to vehicle master LIN bus. IC Role / Device Role / Timing Role: LIN slave node implemented in reconfigurable SCB with hardware CRC and sync-break detection. Use Value: Meets LIN 2.2A timing compliance with <1 µs jitter - ensures flicker-free dimming transitions across 100+ nodes in lighting network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive sensing MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4747LQI-S453T | Same die, 40-pin QFN but industrial temp range (–40°C to +85°C), no AEC-Q100 qualification | Not suitable for under-hood or cabin-critical automotive systems requiring Grade-S qualification | Select only for non-automotive or non-safety-critical industrial prototypes |
| CY8C4747AZI-S453T | Same core, 48-pin TQFP package, identical AEC-Q100 Grade-S rating, adds 2 extra GPIO and 1 additional SCB | Higher pin count supports more complex sensor fusion or multi-zone touch + inductive arrays | Choose when board layout requires TQFP or >34 GPIO; otherwise QFN offers smaller footprint and better thermal performance |
Compared with CY8C4747LQI-S453T, this part adds AEC-Q100 Grade-S qualification and deep-sleep analog retention; versus CY8C4747AZI-S453T, it trades 4 pins and one SCB for 25% smaller QFN footprint - optimal for space-constrained door module PCBs.
Availability
CY8C4747LQS-S453T is available at Aetrix Electronics and suitable for automotive proximity sensing, capacitive HMI, seat occupancy detection, and LIN-based interior lighting systems requiring stable component supply and long-term lifecycle assurance.
Supply support for CY8C4747LQS-S453T 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 German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and wafer fabrication facilities.
CY8C4747LQS-S453T belongs to the PSoC™ 4700S Plus family - designed specifically for automotive body electronics requiring integrated inductive + capacitive sensing, functional safety readiness, and AEC-Q100 Grade-S operation.
FAQ
Does CY8C4747LQS-S453T support CAN communication?
No. This device does not integrate a CAN controller or transceiver. It supports LIN slave functionality via its reconfigurable Serial Communication Blocks (SCBs), but CAN FD or classical CAN requires external PHY or a different PSoC™ family (e.g., PSoC™ 6 with CAN FD). LIN is used for lower-speed body electronics like lighting and door modules where CY8C4747LQS-S453T is typically deployed.
What development tools are required for CAPSENSE™ tuning?
ModusToolbox™ software with the CAPSENSE™ Tuner tool is required. It connects via KitProg3 to the target board and provides real-time SNR, baseline, and finger threshold visualization. The tuner leverages the device's built-in SmartSense algorithm - no manual register configuration is needed, and calibration data is stored in flash for production deployment.
Is the inductive sensing capability limited to ferrous metals?
No. Infineon's oscillator-based inductive sensing detects any conductive material - including aluminum, copper, and stainless steel - by measuring eddy current-induced frequency shift. Performance varies by conductivity and permeability: ferrous metals yield highest sensitivity, but non-ferrous targets are reliably detected at reduced range, validated per datasheet Figure 2.8.9 (detection range curves).
Can the 2.5 µA deep-sleep current be achieved with active CAPSENSE™ scanning?
Yes - but only in low-power CAPSENSE™ scan mode. In this mode, the IDACs and sensing logic operate at reduced speed and duty cycle, achieving ~3.2 µA typical while maintaining 200-ms scan interval. Full-speed CAPSENSE™ scanning increases current to ~120 µA. The 2.5 µA figure applies to deep-sleep with opamps/comparators active but no active sensing - used for wake-on-event scenarios.
CY8C4747LQS-S453T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ CY8C4700S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR, 16x12b Sigma-Delta; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4747LQS-S453T FAQ
1.How can I place an order for CY8C4747LQS-S453T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4747LQS-S453T 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 CY8C4747LQS-S453T reliable?
The price and inventory of CY8C4747LQS-S453T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4747LQS-S453T is usually 5 days.
3.What payment methods are accepted for CY8C4747LQS-S453T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4747LQS-S453T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4747LQS-S453T?
CY8C4747LQS-S453T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4747LQS-S453T 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 CY8C4747LQS-S453T?
For technical support, including CY8C4747LQS-S453T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4747LQS-S453T requirements.
6.How does Aetrix verify that CY8C4747LQS-S453T is sourced from the original manufacturer or authorized distributors?
All CY8C4747LQS-S453T 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 CY8C4747LQS-S453T meets industry standards.
7.What is the process for return or replacement of CY8C4747LQS-S453T?
All CY8C4747LQS-S453T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4747LQS-S453T, 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 CY8C4747LQS-S453T part is unused and in its original packaging.
Return procedure for CY8C4747LQS-S453T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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