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Infineon Technologies CY8C4747LQS-S453
- Part No.:
- CY8C4747LQS-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4747LQS-S453.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
CY8C4747LQS-S453 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, integrated CAPSENSE™ sigma-delta capacitive sensing, and oscillator-based inductive sensing for metal detection. It supports up to four inductive sensors with <190 nm deflection resolution and delivers >5:1 SNR in wet environments - deployed in automotive door handle proximity systems and center console touch/inductive hybrid HMI.
For engineers reviewing the CY8C4747LQS-S453 datasheet, CY8C4747LQS-S453 pinout, CY8C4747LQS-S453 application, or CY8C4747LQS-S453 equivalent, key selection criteria include its dual-mode sensing capability (capacitive + inductive on single die), deep-sleep current of 2.5 µA with active analog, and 34 GPIOs with 19 smart I/O pins supporting boolean logic at port level.
Technical Context
This MCU implements a reconfigurable mixed-signal architecture where programmable analog blocks (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) and digital resources (eight TCPWMs, five SCBs, three smart I/O ports) are routed via a flexible interconnect fabric. Its inductive sensing uses dedicated oscillator circuitry with automatic calibration against manufacturing variation, while CAPSENSE™ employs sigma-delta modulation with SmartSense auto-tuning.
The clock system integrates multiple sources: ±2% IMO, 32-kHz ILO/WCO, 4–33 MHz ECO, and a PLL for 48-MHz core operation. True random number generation (TRNG) is hardware-accelerated for cryptographic key derivation, and LCD segment drive capability is implemented directly on GPIOs without external drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic control with Thumb-2 instruction set and NVIC support. |
| Flash / SRAM | 128 KB flash with read accelerator / 8 KB SRAM - sufficient for dual-sensing firmware with CAPSENSE™ and inductive sensor stacks plus safety monitoring. |
| Sensing Capability | Dual-mode: CAPSENSE™ CSD (sigma-delta) + oscillator-based inductive - allows simultaneous non-metal (glass, plastic) and metal (key fob, ring) detection on same chip. |
| ADC Performance | 12-bit SAR ADC, 1 Msps, differential/single-ended - supports high-fidelity analog signal acquisition for sensor conditioning and diagnostics. |
| Low-Power Operation | Deep sleep current = 2.5 µA with analog active - enables always-on proximity wake-up in battery-constrained automotive modules. |
| GPIO & Smart I/O | 34 programmable GPIOs; 19 support smart I/O boolean logic - reduces external glue logic and enables hardware-level event filtering before CPU wake-up. |
| Operating Voltage | 1.71 V to 5.5 V - compatible with 3.3 V and 5 V automotive subsystems and tolerant of load-dump transients when properly decoupled. |
| Temperature Range | Grade-S: –40°C to +105°C - qualified per AEC-Q100 Rev G for under-hood and cabin-mounted applications. |
Pinout & Package
Package: 40-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad. Pin mapping validated per Infineon datasheet 002-34139 Rev. *C, Section 3 "Pinouts".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies enable mixed-voltage interface (e.g., 1.8 V logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIO | All 34 pins support CAPSENSE™, analog input/output, digital I/O, or smart I/O logic - no fixed-function pin constraints. |
| XRES | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.2–5.5 V logic levels - simplifies integration with automotive watchdog circuits. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 4–33 MHz crystals for precise timing; required for ECO-based inductive sensing calibration stability. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC and low-power timer operation during deep sleep - critical for periodic sensor polling without full wake-up. |
| VREF | Analog reference voltage input | Accepts external reference (1.024 V typical) for SAR ADC - improves accuracy in noisy automotive supply environments. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAPSENSE™ CSD | Hardware-accelerated sigma-delta modulation with >5:1 SNR and water tolerance - eliminates need for external shielded traces or guard rings in wet-location HMI. |
| Oscillator-based inductive sensing | Detects sub-190 nm metal displacement with factory-calibrated compensation - enables ultra-thin, bezel-free door handle designs without mechanical switches. |
| Smart I/O logic | Boolean operations (AND/OR/XOR) executed in hardware on 19 pins - offloads CPU for edge-triggered wake-up and debounce without firmware latency. |
| Deep-sleep analog retention | Opamps, comparators, and IDACs remain operational at 2.5 µA system current - supports continuous proximity monitoring with zero wake-up latency. |
| Five reconfigurable SCBs | Each supports I²C/SPI/UART/LIN slave in runtime - allows dynamic protocol switching for multi-sensor networks or diagnostic interfaces without pin remapping. |
Applications
| Automotive Door Handle Proximity | Center Console Touch + Inductive Hybrid HMI |
|---|---|
Use Scenario: Passive entry system detects user hand approach within 5 cm of door handle using combined capacitive (non-metal) and inductive (metal key/fob) sensing. IC Role / Device Role / Timing Role: Single-chip sensor fusion controller performing real-time CAPSENSE™ scan and inductive oscillator frequency analysis with hardware-accelerated calibration. Use Value: Eliminates separate capacitive and inductive ICs, reducing BOM cost by ~35% and PCB area by 40% versus discrete solutions. | Use Scenario: Center console panel with glass surface detecting finger touch (capacitive) and metallic stylus or ring (inductive) simultaneously for multi-modal interaction. IC Role / Device Role / Timing Role: Dual-sensing coordinator managing time-multiplexed CAPSENSE™ and inductive scans at 100 Hz, with TRNG-secured session keys for gesture authentication. Use Value: Enables seamless mode-switching between touch and inductive input without user action - improves UX consistency in high-glare or wet conditions. |
| Automotive Seat Occupancy Detection | Steering Wheel Gesture Control |
Use Scenario: Integrated seat cushion sensor array monitors occupant presence and position using capacitive sensing through upholstery fabric and inductive sensing through foam layers. IC Role / Device Role / Timing Role: Low-power sensing hub executing concurrent CAPSENSE™ and inductive measurements every 250 ms in deep sleep, waking only on threshold breach. Use Value: Meets FMVSS 208 airbag suppression requirements with single-chip solution certified to AEC-Q100 Grade-S. | Use Scenario: Steering wheel rim with embedded inductive coils detects finger swipe direction and speed via metal perturbation, while capacitive zones detect palm grip pressure. IC Role / Device Role / Timing Role: Real-time motion processor using TCPWM quadrature decoder for directional tracking and SAR ADC for analog grip-force sampling. Use Value: Achieves <10 ms gesture response time with hardware-accelerated signal processing - avoids latency-induced driver distraction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4747LQI-S453 | Same die, QFN-40 package but industrial-grade (–40°C to +85°C); lacks AEC-Q100 qualification. | Not suitable for automotive safety-critical or under-hood use; limited to infotainment head units or non-safety cabin modules. | Select only if temperature range and automotive qualification are not required - lower cost but no AEC-Q100 traceability. |
| STM32G474RET6 | Arm Cortex-M4F @ 170 MHz, 512 KB flash, no integrated inductive sensing; requires external LDC1612 or similar for metal detection. | Capacitive sensing possible via software-based CSD, but no hardware CAPSENSE™ or calibrated inductive engine - increases firmware complexity and validation effort. | Choose when higher CPU performance or DSP capability is needed, but accept added BOM, layout, and qualification burden for dual-mode sensing. |
Compared with CY8C4747LQS-S453, CY8C4747LQI-S453 omits automotive qualification and thermal margin, while STM32G474RET6 trades integrated sensing for raw compute power - making CY8C4747LQS-S453 uniquely optimized for certified, space-constrained automotive HMI with zero external sensing components.
Availability
CY8C4747LQS-S453 is available at Aetrix Electronics and suitable for automotive door handle proximity systems, center console hybrid HMIs, and seat occupancy detection modules requiring stable component supply across extended product lifecycles.
Supply support for CY8C4747LQS-S453 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 ICs, with global R&D and wafer fabrication facilities.
CY8C4747LQS-S453 belongs to the PSoC™ 4700S Plus family - designed specifically for automotive human-machine interface applications demanding certified dual-mode (capacitive + inductive) sensing in a single AEC-Q100-compliant device.
FAQ
What is the maximum number of inductive sensors supported by CY8C4747LQS-S453?
CY8C4747LQS-S453 supports up to four independent inductive sensing channels using its dedicated oscillator-based sensing engine. Each channel operates with automatic calibration against process and temperature variation, and all four can be scanned sequentially within a single 20-ms frame - verified in Infineon's AN92657 application note on inductive sensing design.
Does CY8C4747LQS-S453 require external components for CAPSENSE™ operation?
No external components are required for basic CAPSENSE™ CSD operation: the sigma-delta modulator, IDACs, and scanning logic are fully integrated. Only a single 1-nF decoupling capacitor per VDDIO domain and standard PCB layout practices (ground plane, guard traces) are needed - confirmed in the CAPSENSE™ Design Guide (AN85951) and PSoC™ Creator component datasheet.
Can CY8C4747LQS-S453 operate in deep sleep while performing inductive sensing?
Yes - inductive sensing can run autonomously in deep sleep mode using the 32-kHz ILO clock source and dedicated hardware engine. The CPU remains powered down while the sensing block performs oscillator frequency measurement and raw count accumulation, consuming only 2.5 µA total system current - detailed in Section 2.8 and Table 5-1 of datasheet 002-34139 Rev. *C.
What development tools are officially supported for CY8C4747LQS-S453?
Infineon officially supports ModusToolbox™ 3.x with PSoC™ 4 SDK, including the PDL library, CAPSENSE™ Tuner, and inductive sensing configurator. Hardware debugging uses KitProg3 on CY8CKIT-047 or CY8CKIT-147 kits. Arm® GCC and Keil MDK toolchains are validated - all documented in the ModusToolbox™ release notes and KBA235211.
CY8C4747LQS-S453 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ CY8C4700S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, POR, PWM, 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, 16x12b SAR; D/A 2x7b
- 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-S453 FAQ
1.How can I place an order for CY8C4747LQS-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4747LQS-S453 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-S453 reliable?
The price and inventory of CY8C4747LQS-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4747LQS-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4747LQS-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4747LQS-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4747LQS-S453?
CY8C4747LQS-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4747LQS-S453 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-S453?
For technical support, including CY8C4747LQS-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4747LQS-S453 requirements.
6.How does Aetrix verify that CY8C4747LQS-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4747LQS-S453 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-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4747LQS-S453?
All CY8C4747LQS-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4747LQS-S453, 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-S453 part is unused and in its original packaging.
Return procedure for CY8C4747LQS-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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