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Infineon Technologies CY8C4746LQS-S263T
- Part No.:
- CY8C4746LQS-S263T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4746LQS-S263T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,159
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Product details
Overview
CY8C4746LQS-S263T 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 CY8C4746LQS-S263T datasheet, CY8C4746LQS-S263T pinout, CY8C4746LQS-S263T application, or CY8C4746LQS-S263T 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 reconfigurable SCB blocks supporting I²C/SPI/UART/LIN in runtime.
Technical Context
This MCU implements a mixed-signal programmable architecture where analog resources (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) and digital logic (three Smart IO ports, eight TCPWM blocks, five SCBs) are routed via a flexible interconnect fabric. Its inductive sensing uses dedicated oscillator circuitry with automatic calibration against manufacturing variation, while CAPSENSE™ CSD employs sigma-delta modulation with hardware-accelerated SmartSense tuning.
The clock system integrates multiple sources: ±2% IMO, 32-kHz ILO/WCO, 4–33 MHz ECO, and a PLL for deterministic 48-MHz core operation. TRNG and deep-sleep mode (2.5 µA digital + operational analog) support secure, ultra-low-power automotive body electronics requiring continuous sensing during vehicle sleep states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time sensor fusion and LIN slave protocol handling without external co-processor |
| Flash / SRAM | 128 KB flash with read accelerator / 8 KB SRAM - sufficient for dual-sensing firmware with CAPSENSE™ and inductive stack plus bootloader |
| Sensing Capability | Capacitive (CAPSENSE™ CSD) + inductive (oscillator-based) on single die - eliminates need for separate sensing ICs in space-constrained automotive HMI |
| ADC | 12-bit 1-Msps SAR ADC with sequencer & averaging - supports analog sensor monitoring (e.g., temperature, voltage) alongside touch/inductive processing |
| Low-Power Mode | Deep sleep at 2.5 µA with opamps/comparators active - sustains metal proximity wake-up detection during vehicle off-state |
| GPIO / Smart IO | 34 programmable GPIOs; 19 configurable as Smart IO - enables Boolean logic offloading (e.g., debounce, edge detection) without CPU intervention |
| Communication | 5 reconfigurable SCBs - supports concurrent I²C (sensor hub), SPI (LCD), UART (debug), and LIN slave (body control module interface) |
Pinout & Package
Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supply rails per port group - allows mixed-voltage interfacing (e.g., 3.3 V sensors + 5 V display drivers) |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P12[0]–P12[3] | Programmable GPIO | All pins support CAPSENSE™, analog input/output, digital logic, and inductive coil drive - no fixed-function pin constraints |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - meets automotive cold-cranking voltage drop immunity requirements |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for high-accuracy timing - required for LIN baud rate stability and inductive sensing frequency precision |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC and low-power wake-up timer - critical for periodic inductive scan during deep sleep |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator-based inductive sensing | Detects sub-190 nm metal displacement with factory-calibrated compensation - eliminates external LDC IC and reduces BOM count in door handle modules |
| CAPSENSE™ sigma-delta (CSD) | Hardware-accelerated >5:1 SNR and water-tolerant operation - enables reliable touch control on wet/dirty automotive surfaces without overlay redesign |
| Smart IO logic | Boolean operations (AND/OR/XOR) on 19 pins in hardware - offloads debouncing, pulse stretching, and state machine logic from CPU in switch matrix applications |
| Reconfigurable SCBs | Five independent serial blocks dynamically assignable to I²C/SPI/UART/LIN - simplifies integration into legacy body control networks with mixed protocol requirements |
| Deep-sleep analog retention | Opamps, comparators, and IDACs remain functional at 2.5 µA system current - enables always-on metal proximity wake-up without compromising battery drain |
Applications
| Automotive Door Handle Proximity | Center Console Touch + Inductive Hybrid HMI |
|---|---|
Use Scenario: Passive entry system detects hand approach within 5 cm using inductive sensing, then activates CAPSENSE™ for grip confirmation before unlocking. IC Role / Device Role / Timing Role: Single-chip dual-mode sensor controller with synchronized inductive wake-up and capacitive verification - replaces discrete LDC + touch controller. Use Value: Reduces PCB area by 40%, eliminates inter-IC communication latency, and achieves <100 ms total response time from hand detection to unlock command. | Use Scenario: Center console panel combines slide-to-unlock (capacitive slider) with press-to-confirm (inductive button) under same glass surface. IC Role / Device Role / Timing Role: Unified sensing engine managing both modalities with shared clock, power domain, and firmware stack - avoids cross-talk between sensing types. Use Value: Enables seamless multimodal interaction with single-glass design, meeting ISO 16750-2 vibration and IPX6 wash test requirements. |
| Automotive Seat Position Memory | Steering Wheel Touch Controls |
Use Scenario: Detects seat rail position via inductive sensing of metal teeth, while CAPSENSE™ reads touch buttons for memory recall/store functions. IC Role / Device Role / Timing Role: Integrated position encoder + HMI controller - inductive sensing provides absolute position feedback; capacitive handles user input. Use Value: Eliminates mechanical potentiometers and separate touch IC, improving long-term reliability in high-cycle automotive seating systems. | Use Scenario: Capacitive touch zones on steering wheel rim detect finger presence; inductive sensing beneath leather detects thumb press for cruise control activation. IC Role / Device Role / Timing Role: Dual-sensing front-end with differential noise rejection - capacitive for proximity, inductive for force-insensitive press detection through material layers. Use Value: Achieves >99.5% recognition rate in glove/hand-moisture conditions while maintaining ASIL-B compatible functional safety architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive dual-mode sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4747LQI-S263 | Same PSoC™ 4700S Plus family, 48-pin QFN, 128 KB flash, but lacks AEC-Q100 qualification and Grade-S temp range | Restricted to non-automotive industrial HMI; not suitable for under-hood or cabin body control modules | Select only for cost-sensitive non-automotive prototypes where AEC-Q100 compliance is not required |
| STM32G071KBT6 | Arm Cortex-M0+, 64 MHz, 128 KB flash, but no integrated inductive sensing or CAPSENSE™ - requires external LDC and touch controller | Higher BOM cost and PCB area; added firmware complexity for sensor fusion across three ICs | Choose only if existing STM32 toolchain investment outweighs dual-sensing integration benefits |
Compared with CY8C4746LQS-S263T, CY8C4747LQI-S263 omits automotive qualification and thermal grade, while STM32G071KBT6 lacks on-die sensing hardware entirely - making the Infineon part uniquely suited for production automotive HMI where integration, qualification, and low-power sensing co-existence are mandatory.
Availability
CY8C4746LQS-S263T is available at Aetrix Electronics and suitable for automotive body electronics, smart HMI systems, and battery-powered proximity sensing applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.
Supply support for CY8C4746LQS-S263T 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 and manufacturing infrastructure.
The PSoC™ 4700S Plus product line targets automotive human-machine interface applications requiring integrated capacitive and inductive sensing, delivering certified functional safety readiness and ultra-low-power always-on capability.
FAQ
Is CY8C4746LQS-S263T qualified for automotive use?
Yes. It is AEC-Q100 Grade-S qualified (–40°C to +105°C) and designed for automotive body electronics including door handles, center consoles, and seat controls. The qualification covers stress testing for temperature cycling, humidity, and mechanical shock per AEC standards.
Does this MCU support simultaneous capacitive and inductive sensing?
Yes. It integrates both CAPSENSE™ sigma-delta capacitive sensing and oscillator-based inductive sensing on a single die, with shared clocking, power domains, and firmware APIs - enabling true hardware-synchronized dual-mode operation without resource contention.
What development tools are supported for this device?
ModusToolbox™ software is the official IDE-neutral development platform, providing HAL/PDL libraries, CAPSENSE™ and inductive sensing configuration tools, and code examples. It supports Eclipse-based IDE, Arm GCC, and third-party debuggers including Segger J-Link and ST-Link v2.
Can the deep-sleep current be achieved with active sensing?
Yes. In deep-sleep mode, the MCU draws 2.5 µA while keeping opamps, comparators, IDACs, and the 32-kHz WCO active - enabling continuous inductive scanning or capacitive wake-up detection without exiting low-power state.
CY8C4746LQS-S263T 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, POR, PWM, Temp Sensor, 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 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:
CY8C4746LQS-S263T FAQ
1.How can I place an order for CY8C4746LQS-S263T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4746LQS-S263T 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-S263T reliable?
The price and inventory of CY8C4746LQS-S263T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4746LQS-S263T is usually 5 days.
3.What payment methods are accepted for CY8C4746LQS-S263T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4746LQS-S263T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4746LQS-S263T?
CY8C4746LQS-S263T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4746LQS-S263T 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-S263T?
For technical support, including CY8C4746LQS-S263T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4746LQS-S263T requirements.
6.How does Aetrix verify that CY8C4746LQS-S263T is sourced from the original manufacturer or authorized distributors?
All CY8C4746LQS-S263T 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-S263T meets industry standards.
7.What is the process for return or replacement of CY8C4746LQS-S263T?
All CY8C4746LQS-S263T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4746LQS-S263T, 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-S263T part is unused and in its original packaging.
Return procedure for CY8C4746LQS-S263T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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