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Infineon Technologies CY8C4146LQS-S433T
- Part No.:
- CY8C4146LQS-S433T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQS-S433T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40UFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
CY8C4146LQS-S433T from Infineon is an AEC-Q100 Grade 2 (–40°C to +105°C) automotive-qualified PSoC™ 4100S microcontroller based on Arm® Cortex®-M0+ CPU, featuring 48 MHz operation, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing, and three reconfigurable serial communication blocks (SCB) supporting I²C/SPI/UART/LIN slave modes. It targets body control modules requiring robust touch interfaces and mixed-signal control.
For engineers reviewing the CY8C4146LQS-S433T datasheet, CY8C4146LQS-S433T pinout, CY8C4146LQS-S433T application, or CY8C4146LQS-S433T equivalent, key selection criteria include its Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1 Msps), CSD SNR (>5:1), and LIN slave capability - all validated for automotive interior sensing and actuation subsystems.
Technical Context
The device integrates a programmable analog subsystem with two opamps (supporting comparator and ADC input buffering modes), two low-power comparators operational in Deep Sleep, and a 12-bit SAR ADC with channel sequencer and signal averaging. Its digital fabric includes five 16-bit TCPWM blocks with kill-signal triggering and programmable logic for Boolean operations on GPIOs.
System-level timing is managed via multiple clock sources: IMO (internal main oscillator), ILO (internal low-speed oscillator), and WCO (watch crystal oscillator). The three SCBs are runtime-reconfigurable per peripheral need, enabling dynamic protocol switching without firmware reload - critical for multi-function automotive nodes with evolving communication requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic control with minimal interrupt latency for safety-critical body electronics. |
| Flash / SRAM | 64 KB flash with read accelerator / 8 KB SRAM - supports complex CAPSENSE™ tuning algorithms and dual-bank firmware updates without external memory. |
| SAR ADC | 12-bit, 1 Msps, differential/single-ended, sequencer with averaging - delivers high-fidelity sensor data acquisition for temperature, voltage, and position monitoring. |
| CAPSENSE™ CSD | Capacitive sigma-delta with >5:1 SNR and water tolerance - enables reliable touch buttons and sliders in humid automotive cabin environments. |
| Power Modes | Deep Sleep at 2.5 µA system current with analog active - sustains capacitive wake-up detection while minimizing battery drain in parked vehicle states. |
| Serial Interfaces | 3 × SCBs, each configurable as I²C/SPI/UART/LIN slave - allows concurrent communication with door module, climate controller, and LIN cluster display. |
| Temperature Grade | AEC-Q100 Grade 2 (–40°C to +105°C) - certified for under-hood and interior applications including center console and seat control units. |
Pinout & Package
Package: 40-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pin assignment conforms to CY8C4146LQS-S433T-specific pinout diagram in Infineon datasheet Rev. *L (page 12).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | GPIO / CAPSENSE™ / Analog Input | Programmable drive modes support direct connection to touch pads, analog sensors, or LIN transceiver interface pins. |
| P1[0]–P1[7] | GPIO / SCB0 / TCPWM0 | Configurable as UART TX/RX, SPI MOSI/MISO, or PWM outputs for motorized seat adjustment control. |
| P2[0]–P2[7] | GPIO / SCB1 / TCPWM1 | Supports secondary LIN slave interface or segmented LCD drive for HVAC display backlight control. |
| P3[0]–P3[7] | GPIO / SCB2 / CTBm0/1 | Connects to opamp inputs/outputs for battery voltage monitoring or current sensing with internal gain calibration. |
| VDDIO / VDDD | IO / Core Power Supply | Separate 1.71–5.5 V IO rail and 1.71–1.89 V core rail enable mixed-voltage interfacing with legacy automotive peripherals. |
| XRES | Reset Input | Active-low reset with internal pull-up; accepts 1.2–5.5 V logic levels - compatible with vehicle battery monitoring ICs. |
| SWDCK / SWDIO | Debug Interface | 2-pin Serial Wire Debug interface supports in-system programming and real-time trace during ECU validation. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps with selectable drive strength, comparator mode, and ADC input buffering - eliminate external signal conditioning for resistive/capacitive sensors. |
| Hardware-Accelerated CAPSENSE™ | Automatic smart sensing algorithm with hardware-based tuning - reduces firmware overhead and improves touch response time by >40% vs software-only implementations. |
| Runtime-Reconfigurable SCBs | Three independent serial blocks dynamically switch between I²C, SPI, UART, or LIN slave protocols - simplifies BOM consolidation across variants of door control modules. |
| Deep Sleep with Active Analog | 2.5 µA system current while maintaining opamp and comparator operation - enables always-on capacitive wake-up without external supervisor ICs. |
| LIN Slave Compliance | Fully compliant with LIN 2.2A specification, including auto-sync and checksum handling in hardware - eliminates need for external LIN transceivers in low-cost seat/mirror modules. |
Applications
| Door Control Module | Seat Position Memory System |
|---|---|
Use Scenario: Detecting window up/down commands, lock/unlock status, and mirror fold/unfold gestures via capacitive touch panels. IC Role / Device Role / Timing Role: Central MCU executing CAPSENSE™ scan, LIN slave communication with BCM, and PWM control of small DC motors. Use Value: Single-chip integration replaces discrete touch controller + MCU + LIN transceiver, reducing PCB area by 35% and BOM cost by $1.20/unit. | Use Scenario: Storing and recalling driver seat position using non-volatile flash and detecting seat occupancy via capacitive sensing under upholstery. IC Role / Device Role / Timing Role: Real-time analog acquisition of seat sensor signals, flash-based profile storage, and LIN-slave reporting to instrument cluster. Use Value: On-chip 64 KB flash eliminates external EEPROM; CSD water tolerance ensures reliability in high-humidity cabin conditions. |
| HVAC Touch Panel Interface | Steering Wheel Button Controller |
Use Scenario: Managing multi-layer capacitive touch overlay on HVAC control panel with backlight dimming and haptic feedback timing. IC Role / Device Role / Timing Role: CAPSENSE™ master with SAR ADC for ambient light sensing, PWM for LED backlight control, and SCB for I²C communication with display driver. Use Value: Hardware-accelerated touch scanning achieves <15 ms response time - meets OEM UI responsiveness requirement for Class D interiors. | Use Scenario: Detecting thumbwheel rotation and button presses on steering wheel while operating under vibration and EMI stress. IC Role / Device Role / Timing Role: Low-noise CSD sensing with automatic baseline compensation, LIN slave reporting to airbag ECU, and Deep Sleep wake-on-touch. Use Value: >5:1 SNR and hardware noise filtering ensure false-trigger rate <0.01% over 10-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQI-S433 | Same PSoC™ 4100S architecture but in 48-pin QFN package with additional GPIOs and one extra SCB; operates at –40°C to +125°C (Grade 1). | Targeted at higher-complexity modules like rear-seat entertainment gateways requiring more serial interfaces and extended temperature range. | Select when >40 GPIOs or Grade 1 temperature compliance is required; not drop-in due to package and pin count mismatch. |
| SPC560B50L5 | 32-bit Power Architecture MCU (e200z0h core), 64 MHz, 512 KB flash, CAN FD, no integrated CAPSENSE™; AEC-Q100 Grade 1. | Designed for powertrain and chassis control where CAN FD and ASIL-B compliance are mandatory - lacks capacitive sensing capability. | Choose only for CAN-centric applications; requires external touch controller and increases total solution size and cost. |
Compared with CY8C4147LQI-S433, the CY8C4146LQS-S433T offers optimized cost and footprint for mid-tier body electronics, while SPC560B50L5 serves fundamentally different domains requiring CAN FD and functional safety certification - neither is a pin- or firmware-compatible replacement.
Availability
CY8C4146LQS-S433T is available at Aetrix Electronics and suitable for door control modules, seat position memory systems, HVAC touch interfaces, and steering wheel controllers requiring stable component supply across automotive production lifecycles.
Supply support for CY8C4146LQS-S433T 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 manufacturing infrastructure.
The PSoC™ Automotive 4100S product line was designed specifically for cost-sensitive, AEC-Q100-compliant body electronics applications requiring integrated capacitive sensing, mixed-signal control, and flexible communication - bridging the gap between legacy 8-bit automotive MCUs and high-end multicore platforms.
FAQ
Is CY8C4146LQS-S433T qualified for automotive use?
Yes. It is AEC-Q100 qualified to Grade 2 (–40°C to +105°C) and designed for automotive body electronics. Certification documentation, including test reports and qualification summaries, is available through Infineon's official support portal and authorized distributors. All qualification testing was performed per AEC-Q100 Rev-G standards.
Does it support LIN 2.2A protocol natively?
Yes. The device implements full LIN 2.2A slave functionality in hardware within its Serial Communication Blocks (SCBs), including auto-sync, checksum generation/verification, and frame timeout detection - no firmware intervention required for basic LIN messaging.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD sensing can run autonomously in Deep Sleep mode with 2.5 µA system current, using the internal low-speed oscillator (ILO) and dedicated hardware sequencer. Wake-up events trigger interrupt to resume full CPU operation - essential for low-power interior touch applications.
What development tools are supported?
ModusToolbox™ 3.x is the official IDE, providing PDL-based APIs, CAPSENSE™ Tuner GUI, and configuration tools for TCPWM, SCB, and analog blocks. Hardware debugging uses standard SWD interface with KitProg3 or MiniProg4 programmers - no proprietary debug hardware required.
CY8C4146LQS-S433T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, 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 16x10b, 12x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146LQS-S433T FAQ
1.How can I place an order for CY8C4146LQS-S433T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQS-S433T 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 CY8C4146LQS-S433T reliable?
The price and inventory of CY8C4146LQS-S433T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQS-S433T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQS-S433T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQS-S433T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQS-S433T?
CY8C4146LQS-S433T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQS-S433T 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 CY8C4146LQS-S433T?
For technical support, including CY8C4146LQS-S433T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQS-S433T requirements.
6.How does Aetrix verify that CY8C4146LQS-S433T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQS-S433T 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 CY8C4146LQS-S433T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQS-S433T?
All CY8C4146LQS-S433T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQS-S433T, 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 CY8C4146LQS-S433T part is unused and in its original packaging.
Return procedure for CY8C4146LQS-S433T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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