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Infineon Technologies CY8C4146LQS-S433
- Part No.:
- CY8C4146LQS-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQS-S433.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40UFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,740
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Product details
Overview
CY8C4146LQS-S433 from Infineon is an AEC-Q100 Grade 2 (–40°C to +105°C) automotive-qualified PSoC™ 4100S microcontroller based on the Arm® Cortex®-M0+ CPU, featuring 48 MHz operation, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing, and three reconfigurable serial communication blocks (SCBs) supporting I²C/SPI/UART/LIN slave modes. It targets body control modules and smart sensor nodes requiring mixed-signal programmability and functional safety readiness.
For engineers reviewing the CY8C4146LQS-S433 datasheet, CY8C4146LQS-S433 pinout, CY8C4146LQS-S433 application, or CY8C4146LQS-S433 equivalent, key selection criteria include its Deep Sleep current (2.5 µA), 12-bit 1-Msps SAR ADC with sequencer, dual opamps operable in Deep Sleep, CSD-based touch SNR > 5:1, and TCPWM kill-signal triggering for motor control.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (CTB opamps, SAR ADC, IDACs, LPCs) and digital (TCPWM, PLD logic, SCBs) subsystems, all routed via a flexible interconnect matrix. Its system-level architecture supports concurrent analog signal acquisition, capacitive touch processing, and real-time PWM generation without CPU intervention.
Capacitive sensing uses a dedicated sigma-delta (CSD) block with hardware-accelerated auto-tuning and water-tolerant algorithms, while timing-critical functions leverage five independent 16-bit TCPWM blocks with comparator-triggered kill inputs-enabling safe motor gate drive sequencing in automotive power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables deterministic real-time control with low interrupt latency for ASIL-B–capable software partitioning. |
| Memory | 64 KB flash (with read accelerator), 8 KB SRAM - supports secure boot, OTA updates, and dual-bank firmware swapping in automotive ECUs. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC (differential/single-ended, channel sequencer), 2 opamps (Deep Sleep-capable), 2 IDACs - allows simultaneous battery monitoring, temperature sensing, and touch electrode biasing. |
| Digital Peripherals | 3 SCBs (I²C/SPI/UART/LIN slave), 5 TCPWM blocks (center-aligned/PWM/counter), programmable logic - enables LIN gateway + motor PWM + LED dimming in one chip. |
| Power & Temp | 1.71 V–5.5 V supply, –40°C to +105°C (Grade S), 2.5 µA Deep Sleep current - meets automotive cold-cranking voltage drop and extended under-hood thermal requirements. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with >5:1 SNR, automatic hardware tuning - delivers robust touch detection through glove, moisture, or overlay thickness up to 8 mm. |
Pinout & Package
Package: 40-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for automotive thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supplies per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor interface). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 32 pins support CAPSENSE™, analog input/output, or digital logic - no fixed function pinning; routing defined in PSoC Creator/ModusToolbox. |
| SWDCLK / SWDIO | Debug interface | 2-pin ARM Serial Wire Debug - enables in-system programming and real-time trace without dedicated JTAG pins. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - compatible with automotive watchdog ICs and power-supply supervisors. |
| VDDD / VDDA | Digital/analog core supplies | Separate 1.71–5.5 V inputs allow analog noise isolation and independent power sequencing during startup. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Validated for automotive body electronics with full temperature cycling, HTOL, and ESD testing per Rev G spec. |
| Hardware-accelerated CAPSENSE™ | Dedicated CSD block offloads touch scanning from CPU, enabling <10 ms full-panel scan at 100 Hz update rate with <5% CPU load. |
| Deep Sleep analog retention | Opamps, comparators, and SAR ADC remain active at 2.5 µA system current - enables always-on wake-on-touch or voltage-monitoring in sleep mode. |
| Reconfigurable SCBs | Three serial blocks can be independently assigned as I²C master/slave, SPI master/slave, UART, or LIN slave - eliminates need for external protocol translators. |
| TCPWM kill-input triggering | Hardware comparator outputs directly assert TCPWM kill signals - ensures sub-100 ns fault response for motor overcurrent protection without software latency. |
Applications
| Body Control Module (BCM) | Smart Rearview Mirror |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror folding via LIN/CAN gateway. IC Role / Device Role / Timing Role: Main MCU executing ASW-compliant diagnostics, LIN slave communication, and PWM-driven LED backlight dimming. Use Value: Single-chip integration replaces discrete MCU + LIN transceiver + LED driver, reducing BOM count by 4 components and PCB area by 28%. | Use Scenario: Touch-sensitive auto-dimming rearview mirror with ambient light and glare sensing. IC Role / Device Role / Timing Role: Capacitive touch controller + ambient light ADC + I²C sensor hub + PWM-controlled electrochromic dimming driver. Use Value: CSD block achieves >5:1 SNR through 3 mm glass overlay and condensation, eliminating false triggers in rain or fog. |
| Automotive Seat Position Sensor | LED Headlamp Driver Interface |
Use Scenario: Non-contact seat track position sensing using linear Hall effect or potentiometric feedback. IC Role / Device Role / Timing Role: Analog front-end (SAR ADC + opamp buffering) + CAN/LIN interface + EEPROM-backed calibration storage. Use Value: 12-bit SAR ADC with hardware averaging reduces position jitter to ±0.2 mm across –40°C to +105°C, meeting OEM linearity specs. | Use Scenario: Digital interface between vehicle body controller and multi-zone LED headlamp driver ICs. IC Role / Device Role / Timing Role: SPI master controlling LED driver registers, monitoring thermal shutdown flags, and generating synchronized PWM dimming waveforms. Use Value: Five TCPWM blocks generate independent 100 Hz–2 kHz dimming signals for high-beam, low-beam, DRL, and turn indicators with <1% duty-cycle error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | ARM Cortex-M4F @ 170 MHz, 512 KB flash, no integrated CAPSENSE™, requires external touch controller | Higher compute throughput but adds BOM cost and layout complexity for touch systems | Select when floating-point math or DSP acceleration is required; avoid if capacitive touch is primary interface. |
| RA4M2AFGCBE | Renesas RA4M2, Cortex-M33 @ 100 MHz, 512 KB flash, no CSD block, offers TrustZone but lacks analog flexibility | Strong security features but limited analog configurability - less suitable for mixed-signal sensor fusion | Prefer for secure gateway or telematics applications; not optimal for touch + analog sensing co-location. |
Compared with STM32G474RET6 and RA4M2AFGCBE, CY8C4146LQS-S433 uniquely combines automotive-grade CAPSENSE™, Deep Sleep analog retention, and reconfigurable SCBs in a single die-reducing system-level validation effort for body electronics with human-machine interfaces.
Availability
CY8C4146LQS-S433 is available at Aetrix Electronics and suitable for body control modules, smart mirrors, seat position sensors, and LED headlamp interfaces requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for CY8C4146LQS-S433 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 ISO/TS 16949-certified wafer fabs.
The PSoC™ Automotive 4100S product line targets cost-sensitive, safety-aware automotive body electronics, delivering programmable analog/digital integration to replace discrete signal chains and reduce design iteration cycles.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4146LQS-S433?
The CY8C4146LQS-S433 operates its Arm® Cortex®-M0+ CPU at up to 48 MHz, verified across the full –40°C to +105°C temperature range and 1.71 V–5.5 V supply. This frequency is sustained using the internal main oscillator (IMO) with optional PLL multiplication, and supports deterministic real-time execution for ASIL-B software partitions.
Does CY8C4146LQS-S433 support hardware-based capacitive touch sensing without CPU involvement?
Yes. The device includes a dedicated Capacitive Sigma-Delta (CSD) block that performs touch scanning, baseline tracking, and noise filtering autonomously. It supports hardware-accelerated auto-tuning and generates interrupts only upon threshold crossing-enabling <10 ms full-panel scans with <5% CPU utilization.
Can the serial communication blocks (SCBs) be configured simultaneously as different protocols?
Yes. All three SCBs are fully independent and runtime-reconfigurable. One can operate as I²C master, another as SPI slave, and the third as LIN slave-all concurrently. Configuration is done via register writes or ModusToolbox GUI, with no hardware resource conflict or shared clock domain limitations.
What is the minimum supply current in Deep Sleep mode with analog peripherals active?
In Deep Sleep mode with both opamps, comparators, and the SAR ADC enabled (but CPU and flash powered down), the typical system current is 2.5 µA at 3.3 V and 25°C. This value is specified across temperature and voltage ranges in the datasheet's DC specifications section (Table 5-2).
CY8C4146LQS-S433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- 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-S433 FAQ
1.How can I place an order for CY8C4146LQS-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQS-S433 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-S433 reliable?
The price and inventory of CY8C4146LQS-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQS-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQS-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQS-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQS-S433?
CY8C4146LQS-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQS-S433 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-S433?
For technical support, including CY8C4146LQS-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQS-S433 requirements.
6.How does Aetrix verify that CY8C4146LQS-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQS-S433 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-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQS-S433?
All CY8C4146LQS-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQS-S433, 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-S433 part is unused and in its original packaging.
Return procedure for CY8C4146LQS-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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