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Infineon Technologies CY8C4146LQS-S253T
- Part No.:
- CY8C4146LQS-S253T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQS-S253T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,977
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Product details
Overview
CY8C4146LQS-S253T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller based on the Arm® Cortex®-M0+ CPU, operating at up to 48 MHz with 128 KB flash and 16 KB SRAM. It integrates CAPSENSE™ capacitive sensing, a 12-bit 1-Msps SAR ADC, two opamps, five reconfigurable serial communication blocks (SCB), and a CAN 2.0B interface with TTCAN support - deployed in automotive body electronics, touch-enabled control panels, and motor drive supervision systems.
For engineers reviewing the CY8C4146LQS-S253T datasheet, CY8C4146LQS-S253T pinout, CY8C4146LQS-S253T application, or CY8C4146LQS-S253T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, integrated CAPSENSE™ with SmartSense auto-tuning, CAN 2.0B + TTCAN capability, Deep Sleep current of 2.5 µA, and programmable analog/digital routing for sensor fusion and mixed-signal control.
Technical Context
The device implements a tightly coupled subsystem where the Arm® Cortex®-M0+ core executes firmware while programmable digital logic (Smart I/O) offloads GPIO-level Boolean operations, and configurable analog blocks (CTB, SAR ADC, IDACs) enable sensor signal conditioning without external components. Its clock system includes a 4–33 MHz ECO, PLL for 48-MHz core clock, and 32-kHz WCO for RTC functions.
The CAN block supports time-triggered communication with deterministic latency and synchronized sampling across multiple nodes, while the TCPWM blocks provide quadrature decoding and comparator-triggered kill signals for motor safety logic - both critical for ASIL-B–compatible automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with Thumb-2 instruction set and NVIC for low-latency interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader storage, dual-bank firmware updates, and real-time data buffering. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC (differential/single-ended), 2 opamps, 2 IDACs, 2 low-power comparators - enables simultaneous multi-channel sensor acquisition and analog front-end programmability. |
| Digital Peripherals | 5 SCBs (I²C/SPI/UART/LIN), 8 TCPWM blocks, CAN 2.0B with TTCAN - provides flexible communication stacking and precise timing for motor control and networked ECUs. |
| Power & Temp | 1.71–5.5 V supply, Deep Sleep current = 2.5 µA, Grade-S temp range (–40°C to +105°C) - ensures robust operation in under-hood and cabin environments. |
| GPIO & Sensing | Up to 54 programmable GPIOs, CAPSENSE™ CSD with >5:1 SNR and water tolerance, SmartSense auto-tuning - delivers reliable touch interface in humid or contaminated conditions. |
Pinout & Package
This device is packaged in a 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with wettable flank terminations for automotive-grade solder joint inspection.
| 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 interfacing (e.g., 3.3 V MCU logic with 5 V sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIOs | All pins support CAPSENSE™, analog input/output, digital logic, and configurable drive strength/slew rate - eliminates need for external level shifters or buffers. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for high-accuracy timing - required for CAN bit timing compliance and RTC synchronization. |
| CAN_TX / CAN_RX | CAN physical layer interface | Dedicated differential pair supporting ISO 11898-2 signaling - connects directly to CAN transceiver without external logic. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables low-power RTC operation during Deep Sleep - maintains timekeeping while consuming <1 µA. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade-S qualification | Validated for –40°C to +105°C operation with extended reliability testing - meets automotive body control module requirements. |
| Integrated CAPSENSE™ CSD | Capacitive sigma-delta sensing with >5:1 SNR and hardware-based water rejection - enables glove-compatible touch buttons in automotive dashboards. |
| Programmable analog routing | Configurable CTB and SAR ADC interconnects - allows on-chip sensor signal chain (e.g., IDAC → CTB → ADC) without PCB traces. |
| TTCAN support | Time-triggered CAN scheduling with guaranteed message transmission windows - satisfies ASIL-B functional safety timing constraints. |
| Deep Sleep with active analog | 2.5 µA system current with opamps and comparators operational - enables always-on capacitive wake-up or battery-monitoring circuits. |
Applications
| Automotive Door Module Control | Touch-Based HVAC Interface |
|---|---|
Use Scenario: Centralized control of window lift, mirror adjustment, and lock actuation via LIN/CAN network. IC Role / Device Role / Timing Role: Main MCU executing motor control algorithms, LIN slave communication, and CAPSENSE™-based switch emulation. Use Value: Single-chip integration reduces BOM count by eliminating discrete LIN transceivers, opamps, and touch controllers - lowering system cost and board area. | Use Scenario: Climate control panel with slider, rotary encoder, and proximity wake-up in passenger cabin. IC Role / Device Role / Timing Role: CAPSENSE™ host with SmartSense auto-calibration, SAR ADC for thermistor reading, and SPI interface to display driver. Use Value: Water-tolerant CSD ensures reliable operation during condensation or spill events - meeting OEM environmental test requirements. |
| Electric Power Steering (EPS) Supervision | Body Control Module (BCM) Subsystem |
Use Scenario: Monitoring torque sensor, motor current, and fault status in EPS assist unit. IC Role / Device Role / Timing Role: Safety monitor MCU with CAN communication, TCPWM-based quadrature decoding for position feedback, and comparator-triggered kill signal generation. Use Value: Hardware-enforced kill path (no software dependency) meets ISO 26262 ASIL-B diagnostic coverage requirements. | Use Scenario: Lighting control, wiper sequencing, and battery load management in entry-level BCM designs. IC Role / Device Role / Timing Role: Low-power system controller managing GPIO-driven relays, PWM dimming, and CAN gateway functions. Use Value: 2.5 µA Deep Sleep current extends vehicle "keep-alive" battery life beyond 30 days - reducing parasitic drain complaints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | Arm® Cortex®-M4F core, 112 MHz, 1 MB flash, no integrated CAPSENSE™, includes Ethernet MAC | Better suited for gateway or ADAS-adjacent modules requiring higher compute or networking; lacks on-chip touch sensing | Select when floating-point math, larger code footprint, or Ethernet connectivity is required - not a drop-in replacement for CAPSENSE™-centric designs. |
| Renesas RL78/F14 | RL78 core, 32 MHz, 512 KB flash, 32 KB RAM, no CAN FD or TTCAN, limited analog integration | Targeted at cost-sensitive body electronics with basic CAN 2.0A; no hardware-accelerated capacitive sensing | Choose for legacy RL78 ecosystem migration or non-safety-critical lighting/motor control where TTCAN and SNR >5:1 are not required. |
Compared with NXP S32K144W and Renesas RL78/F14, CY8C4146LQS-S253T uniquely combines AEC-Q100 Grade-S qualification, embedded CAPSENSE™ with SmartSense, TTCAN, and sub-3 µA Deep Sleep - making it optimal for touch-integrated, safety-aware automotive control nodes where analog/digital integration reduces component count and validation effort.
Availability
CY8C4146LQS-S253T is available at Aetrix Electronics and suitable for automotive door modules, touch-based HVAC interfaces, electric power steering supervision, and body control module subsystems requiring stable component supply across long production lifecycles.
Supply support for CY8C4146LQS-S253T 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive body electronics requiring integrated capacitive sensing, functional safety features, and AEC-Q100-compliant mixed-signal control in compact form factors.
FAQ
Does CY8C4146LQS-S253T support CAN FD?
No. This device implements a CAN 2.0B controller with Time-Triggered CAN (TTCAN) capability but does not support CAN FD data rates or extended frame formats. It complies with ISO 11898-1:2015 for classical CAN only, with bit rates up to 1 Mbps and deterministic scheduling via TTCAN time slots.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ (v3.x+) and PSoC™ Creator (v4.4) for firmware development, along with CY8CKIT-149 (PSoC™ 4100S Plus prototyping kit) and CY8CKIT-041-41XX (CAPSENSE™ Pioneer Kit). Debugging uses SWD interface via MiniProg3 or KitProg3 programmers.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No. The SAR ADC supports sequential channel scanning using its built-in sequencer with hardware averaging, but lacks true simultaneous sampling. For multi-channel phase-aligned acquisition, external analog multiplexing or parallel ADCs are required - the internal design prioritizes low-power single-shot conversion over concurrent sampling.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD can run in Deep Sleep mode using the internal ILO or WCO clock sources, with dedicated low-power sensing circuitry consuming <5 µA total. Touch detection events generate interrupts to wake the CPU, enabling ultra-low-power human-interface monitoring in always-on automotive applications.
CY8C4146LQS-S253T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100
- 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, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, 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, 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:
CY8C4146LQS-S253T FAQ
1.How can I place an order for CY8C4146LQS-S253T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQS-S253T 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-S253T reliable?
The price and inventory of CY8C4146LQS-S253T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQS-S253T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQS-S253T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQS-S253T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQS-S253T?
CY8C4146LQS-S253T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQS-S253T 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-S253T?
For technical support, including CY8C4146LQS-S253T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQS-S253T requirements.
6.How does Aetrix verify that CY8C4146LQS-S253T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQS-S253T 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-S253T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQS-S253T?
All CY8C4146LQS-S253T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQS-S253T, 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-S253T part is unused and in its original packaging.
Return procedure for CY8C4146LQS-S253T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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