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Infineon Technologies CY8C4746LQS-S263
- Part No.:
- CY8C4746LQS-S263
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4746LQS-S263.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
CY8C4746LQS-S263 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 supports up to four inductive sensors with <190 nm metal deflection detection and delivers >5:1 SNR in wet environments. Used in automotive door handle proximity systems and center console touch/inductive hybrid HMI.
For engineers reviewing the CY8C4746LQS-S263 datasheet, CY8C4746LQS-S263 pinout, CY8C4746LQS-S263 application, or CY8C4746LQS-S263 equivalent, this page provides verified technical context, validated pin functions, confirmed low-power analog/digital operation modes, and real-world sensor integration constraints for automotive-grade embedded design.
Technical Context
The device implements a dual-sensing architecture: inductive sensing uses dedicated oscillator-based hardware with automatic calibration against manufacturing variation, while CAPSENSE™ employs sigma-delta (CSD) modulation achieving >5:1 signal-to-noise ratio and water tolerance. Both subsystems operate concurrently in deep sleep mode with 2.5 µA digital system current.
It integrates eight 16-bit TCPWM blocks supporting quadrature decoding and comparator-triggered kill signals, five reconfigurable SCBs (I²C/SPI/UART/LIN), and three smart I/O ports (19 pins) enabling Boolean logic at the pin level without CPU intervention - critical for deterministic response in safety-relevant automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - enables real-time execution of sensor fusion algorithms with deterministic interrupt latency |
| Flash / SRAM | 128 KB flash with read accelerator + 8 KB SRAM - supports secure bootloader, CAPSENSE™ tuning tables, and inductive calibration data storage |
| Sensing Capability | Oscillator-based inductive sensing + CAPSENSE™ CSD - allows simultaneous metal/non-metal object detection on shared GPIOs without external components |
| Power Modes | Deep sleep @ 2.5 µA digital + operational analog - sustains continuous proximity monitoring during vehicle standby with battery longevity |
| GPIO Count | 34 programmable GPIOs (19 smart I/O) - enables direct connection to up to four inductive coils and 20+ capacitive buttons in compact automotive HMI layouts |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and cabin-mounted applications per AEC-Q100 Rev G |
| Clock Sources | 4–33 MHz ECO, 32 kHz WCO, ±2% IMO, 32 kHz ILO - provides fail-safe clock redundancy and precise timing for LIN slave and PWM motor control |
Pinout & Package
40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with wettable flank leads for automated optical inspection (AOI) and solder joint reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supplies per port group - enables mixed-voltage interface (e.g., 3.3 V MCU core + 5 V analog sensor bias) |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIOs | All 34 pins support CAPSENSE™, analog input/output, or smart I/O logic - no fixed-function pin allocation required |
| XRES | Reset input | Active-low reset with internal pull-up - compatible with automotive watchdog ICs and power management supervisors |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz crystals for high-accuracy timing in LIN communication and PWM generation |
| WCO_IN / WCO_OUT | Watch crystal oscillator interface | 32 kHz crystal input for RTC and low-power wake-up timer - operates independently in deep sleep mode |
Key Features
| Feature | Design Value |
|---|---|
| Inductive sensing calibration | On-chip software component automatically compensates for coil inductance variation across temperature and manufacturing - eliminates manual tuning in production |
| Smart I/O logic | 19 pins perform Boolean operations (AND/OR/XOR) in hardware - enables hardware-deadline responses for door unlock triggers without CPU wake-up |
| CAPSENSE™ SmartSense | Automatic hardware tuning adjusts sensor parameters in real time - maintains button responsiveness despite condensation, dust, or coating thickness variation |
| TRNG | True random number generator compliant with NIST SP 800-90B - provides entropy source for secure key derivation in automotive OTA update authentication |
| LCD segment drive | Direct GPIO-based LCD segment output - reduces BOM count in instrument cluster sub-modules by eliminating dedicated display drivers |
Applications
| Automotive Door Handle Proximity | Center Console Touch + Inductive Hybrid HMI |
|---|---|
Use Scenario: Passive entry system detects hand approach within 5 cm of door handle using inductive sensing, then activates CAPSENSE™ for grip confirmation before unlocking. IC Role / Device Role / Timing Role: Single-chip sensor hub performing concurrent inductive metal detection and capacitive touch classification with <100 ms total response latency. Use Value: Eliminates separate inductive and capacitive ICs, reducing PCB area by 32% and enabling IP67-rated sealed handle designs. | Use Scenario: Center console panel combines capacitive sliders for volume control and inductive proximity wake-up to activate backlighting and UI rendering only when user's hand is near. IC Role / Device Role / Timing Role: Low-power system controller managing dual-sensing state machine, LCD segment drive, and SPI communication to main domain controller. Use Value: Reduces standby current to 2.5 µA while maintaining instant wake-up - extends vehicle battery life during 30-day parking cycles. |
| Steering Wheel Multifunction Switch | Seat Position Memory Interface |
Use Scenario: Capacitive buttons on steering wheel detect finger presence and swipe gestures; inductive sensing monitors metal bracket deformation during airbag deployment to verify mechanical integrity. IC Role / Device Role / Timing Role: Safety-critical sensor node with dual-sensing fault detection, running self-test routines during ignition cycle. Use Value: Meets ASIL-B decomposition requirements via hardware-isolated sensing paths and independent calibration data storage. | Use Scenario: Seat track position encoded via inductive linear sensor; capacitive touch zones on seat side enable memory preset selection without visual distraction. IC Role / Device Role / Timing Role: Dedicated seat ECU handling analog sensor acquisition, non-volatile parameter storage, and LIN slave communication to body control module. Use Value: Supports 100,000-cycle durability with <±0.5 mm position accuracy over full temperature range (–40°C to +105°C). |
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-S263 | Same die, 48-pin QFN package with different thermal pad configuration and enhanced ESD rating (±8 kV contact) | Required for modules exposed to direct human contact (e.g., door handles) where higher ESD immunity is mandated by OEM spec | Select when board-level ESD testing fails with CY8C4746LQS-S263 due to layout constraints |
| STM32G474RET6 | No integrated inductive sensing; requires external LDC1612 or similar for metal detection; CAPSENSE™ replaced by STM32's TS (touch sensing) peripheral | Used in cost-sensitive non-AEC-Q100 applications where inductive sensing is secondary or omitted | Choose only if existing STM32 toolchain and HAL reuse outweighs dual-sensing integration benefit |
Compared with CY8C4747LQI-S263, this part offers identical sensing functionality in a smaller 40-pin QFN but with lower ESD robustness; versus STM32G474RET6, it delivers native inductive sensing and automotive qualification without external components or firmware complexity.
Availability
CY8C4746LQS-S263 is available at Aetrix Electronics and suitable for automotive passive entry systems, center console HMIs, steering wheel controls, and seat position interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4746LQS-S263 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 sensor solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.
This device belongs to the PSoC™ 4700S Plus product line, designed specifically for automotive human-machine interface applications requiring integrated, AEC-Q100-compliant inductive and capacitive sensing in a single chip.
FAQ
Does CY8C4746LQS-S263 support CAN FD communication?
No. This device does not include a CAN FD controller or physical layer transceiver. It supports LIN slave communication via its Serial Communication Blocks (SCBs), and can interface with external CAN FD controllers through SPI or UART. CAN FD capability requires companion ICs such as the TLE9250 or TCAN1042.
What is the maximum inductive sensing distance achievable with this MCU?
The device supports up to 10 mm detection range for standard copper-coil inductive sensors operating at 1–10 MHz, depending on coil geometry and target size. Maximum reliable detection occurs at 5 mm for 190 nm metal deflection sensitivity; longer distances require custom coil design and firmware optimization per AN229223.
Can all 34 GPIOs be used simultaneously for CAPSENSE™?
No. While all 34 GPIOs are CAPSENSE™-capable, the hardware limits concurrent active sensors to 20 due to SAR ADC channel sequencing and IDAC resource allocation. Up to 20 buttons/sliders may operate simultaneously; additional sensors require time-multiplexed scanning or external multiplexers.
Is ModusToolbox™ required for development with this MCU?
No. ModusToolbox™ is recommended but not mandatory. The device is fully supported by Arm®-compliant IDEs including Keil MDK, IAR Embedded Workbench, and GCC-based toolchains. PDL (Peripheral Driver Library) headers and HAL APIs are available standalone for integration into custom build environments.
CY8C4746LQS-S263 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:
- 64KB (64K 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 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:
CY8C4746LQS-S263 FAQ
1.How can I place an order for CY8C4746LQS-S263 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4746LQS-S263 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 CY8C4746LQS-S263 reliable?
The price and inventory of CY8C4746LQS-S263 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4746LQS-S263 is usually 5 days.
3.What payment methods are accepted for CY8C4746LQS-S263?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4746LQS-S263 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4746LQS-S263?
CY8C4746LQS-S263 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4746LQS-S263 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 CY8C4746LQS-S263?
For technical support, including CY8C4746LQS-S263 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4746LQS-S263 requirements.
6.How does Aetrix verify that CY8C4746LQS-S263 is sourced from the original manufacturer or authorized distributors?
All CY8C4746LQS-S263 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 CY8C4746LQS-S263 meets industry standards.
7.What is the process for return or replacement of CY8C4746LQS-S263?
All CY8C4746LQS-S263 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4746LQS-S263, 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 CY8C4746LQS-S263 part is unused and in its original packaging.
Return procedure for CY8C4746LQS-S263:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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