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Infineon Technologies CY8C4146LQQ-S432T
- Part No.:
- CY8C4146LQQ-S432T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQQ-S432T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32UFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
CY8C4146LQQ-S432T 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 with >5:1 SNR, and three reconfigurable serial communication blocks (SCB) supporting I²C/SPI/UART/LIN slave modes.
For engineers reviewing the CY8C4146LQQ-S432T datasheet, CY8C4146LQQ-S432T pinout, CY8C4146LQQ-S432T application, or CY8C4146LQQ-S432T equivalent, this part supports automotive body electronics requiring robust capacitive touch, low-power deep-sleep operation (2.5 µA digital system current), programmable analog (opamps, 12-bit SAR ADC), and TCPWM-based motor control timing.
Technical Context
The device implements a scalable PSoC™ Automotive 4 platform architecture with unified programmable analog (CTB opamps, LPC comparators, IDACs) and digital (TCPWM, SCB, PLD) resources routed via automatic interconnect fabric. Its CAPSENSE™ CSD engine delivers hardware-accelerated sigma-delta sensing with automatic tuning and water tolerance.
It integrates five 16-bit TCPWM blocks supporting center-aligned PWM, comparator-triggered kill signals for motor safety, and three SCBs that can be independently configured at runtime as I²C master/slave, SPI master/slave, UART, or LIN slave - all compliant with ISO 17987-4 (LIN 2.2a).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - enables deterministic real-time control with Thumb-2 instruction set and NVIC interrupt handling. |
| Memory | 64 KB flash (with read accelerator) + 8 KB SRAM - supports firmware updates in field and real-time data buffering without external memory. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC + two opamps + two LP comparators + two IDACs - enables sensor signal conditioning, battery monitoring, and self-capacitance touch acquisition in single-chip design. |
| Digital Peripherals | 5× TCPWM blocks + 3× SCBs + programmable logic (PLD) - allows concurrent motor control, LIN communication, and GPIO logic functions without external glue logic. |
| Power & Temp | 1.71–5.5 V supply, Deep Sleep current = 2.5 µA (digital), –40°C to +105°C (Grade S) - suitable for always-on automotive modules with thermal margin for under-hood deployment. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with >5:1 SNR and hardware auto-tuning - delivers reliable touch detection through overlay materials and wet conditions without host CPU intervention. |
Pinout & Package
This device is housed in a 40-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with wettable flank terminations 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 | Four independent 1.71–5.5 V I/O banks enable mixed-voltage interface (e.g., 3.3 V MCU core + 5 V LIN transceiver level-shifting). |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[7] | Programmable GPIOs | All 40 pins support CAPSENSE™, analog input/output, or digital function - eliminates fixed-function pin constraints during PCB layout. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug (SWD) enables in-circuit programming and real-time trace without dedicated JTAG header footprint. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; meets ISO 11898-3 requirements for automotive reset timing robustness. |
| XTAL_IN / XTAL_OUT | Crystal oscillator terminals | Supports 32.768 kHz watch crystal for RTC and low-power wake-up timing with ±20 ppm stability over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable SCBs | Three serial communication blocks dynamically assignable as I²C/SPI/UART/LIN slave - reduces BOM count by eliminating discrete protocol translators. |
| Deep Sleep Analog Operation | Opamps and comparators remain active in Deep Sleep mode while digital system draws only 2.5 µA - enables continuous sensor wake-up without full MCU boot. |
| CAPSENSE™ Smart Sensing | Hardware-accelerated CSD with automatic baseline recalibration and noise rejection - achieves >99% touch accuracy in humid cabin environments per ISO 10605 ESD testing. |
| TCPWM Kill Signal Triggering | Comparator outputs directly trigger TCPWM fault kill inputs - provides sub-microsecond response for motor overcurrent protection without software latency. |
| Programmable Drive Strength | GPIO drive strength configurable from 2 mA to 25 mA per pin with slew rate control - supports direct LED driving and robust LIN bus termination without external drivers. |
Applications
| Door Handle Touch Interface | Body Control Module (BCM) |
|---|---|
Use Scenario: Capacitive touch detection on metal or plastic door handles for passive entry systems. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ CSD algorithm, LIN slave communication with gateway, and wakeup timer management. Use Value: Achieves <100 ms touch-to-unlock latency with water tolerance and operates continuously at 2.5 µA in Deep Sleep between events. | Use Scenario: Centralized control of lighting, window lift, mirror fold, and seat position memory in premium vehicles. IC Role / Device Role / Timing Role: System controller managing multiple LIN slaves, PWM-driven LED dimming, and analog battery voltage monitoring. Use Value: Integrates 5× TCPWM for independent channel dimming, 12-bit SAR ADC for 12 V rail monitoring, and LIN slave stack in ROM - no external peripherals required. |
| Climate Control Panel | Steering Wheel Button Interface |
Use Scenario: Multi-button capacitive touch panel with haptic feedback and ambient light sensing. IC Role / Device Role / Timing Role: Touch processor with integrated opamp-based ALS front-end and PWM-driven piezo haptics driver. Use Value: Uses internal opamps for photodiode signal conditioning and two IDACs for CSD electrode biasing - eliminates 6 external analog components. | Use Scenario: Compact, sealed steering wheel switch cluster with swipe gesture recognition. IC Role / Device Role / Timing Role: Low-power touch controller with CAPSENSE™ CSD, LIN slave interface to vehicle network, and GPIO-based button scanning. Use Value: Operates at –40°C to +105°C with hardware auto-tuning - maintains consistent swipe sensitivity across temperature and humidity gradients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC560B50L5 | Power Architecture (e200z0h) core, 64 MHz, 512 KB flash, no integrated CAPSENSE™ | Requires external touch controller IC and separate LIN transceiver | Preferred when high-speed CAN FD and ASIL-B functional safety certification are mandatory. |
| TC375TA | TriCore™ v1.6 core, 300 MHz, 4 MB flash, includes HSM security module | Higher cost, larger package (176-pin LQFP), over-spec for basic touch/lin applications | Selected when secure boot, cryptographic acceleration, and dual-core lockstep are required for ASIL-D systems. |
Compared with SPCC560B50L5 and TC375TA, CY8C4146LQQ-S432T offers optimal integration for cost-sensitive, space-constrained automotive touch interfaces - delivering CAPSENSE™, LIN slave, and low-power analog in one die without external components or safety co-processors.
Availability
CY8C4146LQQ-S432T is available at Aetrix Electronics and suitable for automotive body electronics, interior human-machine interface (HMI) modules, and LIN-connected sensor nodes requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for CY8C4146LQQ-S432T 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 centers and automotive-grade wafer fabs.
This part belongs to the PSoC™ Automotive 4100S product line, designed specifically for cost-optimized, AEC-Q100-compliant body electronics where capacitive touch, LIN connectivity, and low-power analog integration reduce system-level complexity.
FAQ
Is CY8C4146LQQ-S432T qualified for automotive use?
Yes. It is AEC-Q100 Grade 2 qualified (–40°C to +105°C), with full qualification test reports available from Infineon. The device meets automotive reliability standards including HTOL, TCT, ESD (HBM ±2 kV, CDM ±1 kV), and EMC performance per ISO 11452-2/4/8.
Does it support LIN 2.2a protocol natively?
Yes. All three SCBs can be configured as LIN slave peripherals compliant with ISO 17987-4 (LIN 2.2a), including automatic sync field detection, checksum calculation, and error handling - no external LIN transceiver is needed for basic slave functionality.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD hardware remains fully operational in Deep Sleep mode with only 2.5 µA digital system current draw. The analog subsystem (including IDACs and CSD modulator) runs autonomously, generating interrupts on touch event detection without waking the CPU.
What development tools are supported?
ModusToolbox™ 3.x is the official IDE, providing PDL-based APIs, CAPSENSE™ Tuner GUI, TCPWM configurator, and LIN stack integration. Hardware debugging uses standard SWD via KitProg3 or MiniProg4 programmers - no proprietary debug hardware required.
CY8C4146LQQ-S432T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-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, POR, PWM, WDT
- Number of I/O:
- 27
- 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 16x10/20x12b SAR; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146LQQ-S432T FAQ
1.How can I place an order for CY8C4146LQQ-S432T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQQ-S432T 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 CY8C4146LQQ-S432T reliable?
The price and inventory of CY8C4146LQQ-S432T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQQ-S432T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQQ-S432T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQQ-S432T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQQ-S432T?
CY8C4146LQQ-S432T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQQ-S432T 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 CY8C4146LQQ-S432T?
For technical support, including CY8C4146LQQ-S432T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQQ-S432T requirements.
6.How does Aetrix verify that CY8C4146LQQ-S432T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQQ-S432T 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 CY8C4146LQQ-S432T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQQ-S432T?
All CY8C4146LQQ-S432T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQQ-S432T, 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 CY8C4146LQQ-S432T part is unused and in its original packaging.
Return procedure for CY8C4146LQQ-S432T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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