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Infineon Technologies CY8C4147LQS-S243T
- Part No.:
- CY8C4147LQS-S243T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQS-S243T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,104
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Product details
Overview
CY8C4147LQS-S243T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (I²C/SPI/UART/LIN), a CAN 2.0B controller with TTCAN support, and eight 16-bit TCPWM blocks-used in motor control, touch HMI, and body electronics systems.
For engineers reviewing the CY8C4147LQS-S243T datasheet, CY8C4147LQS-S243T pinout, CY8C4147LQS-S243T application, or CY8C4147LQS-S243T equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with >5:1 SNR, CAN 2.0B + TTCAN capability, Deep Sleep current of 2.5 µA, and 54 GPIO with programmable drive strength and analog/digital/CAPSENSE™ flexibility.
Technical Context
The device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog blocks (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) and digital resources (TCPWM, SCBs, Smart I/O) operate under hardware-configured routing. All analog peripherals remain functional in Deep Sleep mode.
Clock management includes a 4–33 MHz ECO, PLL for 48-MHz system clock, 32-kHz WCO, ±2% IMO, and 32-kHz ILO-enabling precise timing for CAN, PWM, and capacitive sensing. The CAN block supports time-triggered operation with dedicated message RAM and error counters compliant with ISO 11898-1.
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. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure boot, firmware updates, and real-time data buffering. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered scheduling, message filtering, and bus-off recovery for automotive network nodes. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SmartSense auto-tuning - delivers >5:1 SNR and water-tolerant touch detection without manual calibration. |
| Power Range | 1.71 V to 5.5 V supply - allows direct connection to 3.3 V or 5 V automotive domains and operation across battery voltage transients. |
| Deep Sleep Current | 2.5 µA digital system current with active analog - enables always-on capacitive wake-up and low-power sensor monitoring. |
| GPIO Count | 54 programmable pins - all support CAPSENSE™, analog input/output, digital logic, and configurable slew/drive strength per pin. |
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 functions are fully reconfigurable via firmware and PSoC™ Creator routing tools.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies enabling mixed-voltage interface (e.g., 3.3 V MCU core + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, and configurable drive modes (strong, open-drain, high-Z). |
| CAN_TX / CAN_RX | Dedicated CAN physical layer interface | Hardwired to internal CAN controller; requires external CAN transceiver for bus connection. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 4–33 MHz ECO for precision timing; required for CAN bit timing accuracy and USB-free clocking. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC functionality and low-power wake-up timing independent of main clock domain. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAPSENSE™ with SmartSense | Eliminates manual tuning effort and ensures robust touch performance across temperature, voltage, and environmental variations. |
| Reconfigurable Serial Communication Blocks (SCBs) | Five independent SCBs can be assigned at runtime as I²C master/slave, SPI master/slave, UART, or LIN slave-reducing BOM count and PCB footprint. |
| TTCAN Support | Enables deterministic, schedule-based CAN messaging critical for safety-critical body control modules and gateway applications. |
| Deep Sleep with Active Analog | Allows continuous capacitive sensing or analog monitoring (e.g., door handle proximity) while consuming only 2.5 µA system current. |
| Programmable Analog Blocks | Two opamps and two IDACs usable for sensor signal conditioning, current sourcing, or self-capacitance measurement without external components. |
Applications
| Automotive Door Module | Body Control Module (BCM) |
|---|---|
Use Scenario: Capacitive touch handles with proximity wake-up and anti-theft integration. IC Role / Device Role / Timing Role: Primary MCU executing touch firmware, CAN node for vehicle network communication, and real-time PWM for LED status indication. Use Value: Single-chip solution replaces discrete touch controller + MCU + CAN transceiver interface, reducing component count and improving EMC robustness. | Use Scenario: Centralized control of lighting, wipers, mirrors, and HVAC actuators. IC Role / Device Role / Timing Role: CAN 2.0B/TTCAN node managing scheduled actuator commands and fault reporting; TCPWM blocks drive motor drivers and dimmable LEDs. Use Value: Hardware-timed PWM and deterministic CAN messaging ensure synchronized actuator response and fail-safe behavior per ISO 26262 ASIL-B requirements. |
| Touch-Based Center Console | Electric Parking Brake (EPB) Controller |
Use Scenario: Water-tolerant capacitive buttons and sliders for infotainment and climate control. IC Role / Device Role / Timing Role: CAPSENSE™ subsystem with CSD and SmartSense; SCBs handle I²C communication with display driver and SPI with audio codec. Use Value: >5:1 SNR and automatic recalibration maintain usability during condensation, rain, or glove use without firmware intervention. | Use Scenario: Safety-critical parking brake actuation with dual-channel monitoring and CAN feedback. IC Role / Device Role / Timing Role: Dual-core lockstep not present, but TTCAN + watchdog timer + CRC-protected flash enable ASIL-B compliance; GPIOs monitor redundant brake switch inputs. Use Value: Integrated analog comparators and deep-sleep wake-up allow continuous mechanical position monitoring while meeting <10 µA standby current targets. |
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 | Targets higher-compute gateway or ADAS-adjacent modules; lacks on-die capacitive sensing | Select when requiring floating-point math, Ethernet, or larger memory; add external touch controller if needed. |
| Renesas RL78/F14 | RL78 core, 32 MHz, 512 KB flash, AEC-Q100 Grade-2, no CAN FD or TTCAN, no integrated CAPSENSE™ | Cost-sensitive body electronics with basic CAN 2.0A; limited analog flexibility and no SmartSense | Select for legacy 8/16-bit migration paths where CAN FD or advanced touch are not required. |
Compared with S32K144W and RL78/F14, CY8C4147LQS-S243T uniquely integrates high-SNR CAPSENSE™, TTCAN, and Deep Sleep analog operation in a single AEC-Q100 Grade-S package-making it optimal for touch-centric, low-power automotive nodes where BOM reduction and design simplicity are prioritized over raw compute or networking bandwidth.
Availability
CY8C4147LQS-S243T is available at Aetrix Electronics and suitable for automotive door modules, body control units, center console HMIs, and electric parking brake controllers requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CY8C4147LQS-S243T 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 supporting automotive-grade reliability.
CY8C4147LQS-S243T belongs to the PSoC™ 4100S Plus product line, designed specifically for cost-optimized, AEC-Q100-compliant automotive human-machine interfaces and body electronics requiring integrated capacitive sensing, CAN, and low-power operation.
FAQ
Does CY8C4147LQS-S243T support CAN FD?
No. This device implements CAN 2.0B with optional time-triggered CAN (TTCAN) per ISO 11898-4, but does not support CAN FD data rates or extended data length frames. For CAN FD, consider Infineon's AURIX™ TC3xx family or Cypress PSoC™ 62 series with CAN FD blocks.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.x+) and legacy PSoC™ Creator v4.4 for firmware development, along with CY8CKIT-149 prototyping kit and MiniProg3 programmer/debugger. Both environments provide full access to CAPSENSE™ Tuner, TCPWM configurator, and CAN message RAM setup tools.
Is the 12-bit SAR ADC capable of simultaneous sampling?
No. The 12-bit SAR ADC has a single conversion engine with channel sequencer and signal averaging, but lacks multiple sample-and-hold circuits for true simultaneous sampling across channels. It supports rapid sequential acquisition up to 1 Msps with hardware-triggered sequencing.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD sensing-including baseline tracking and noise filtering-can run autonomously in Deep Sleep mode using the ILO or WCO clock source, with wake-up interrupt generation upon touch detection, while maintaining 2.5 µA total system current.
CY8C4147LQS-S243T 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:
- 24MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b, 20x12b SAR
- 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:
CY8C4147LQS-S243T FAQ
1.How can I place an order for CY8C4147LQS-S243T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQS-S243T 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 CY8C4147LQS-S243T reliable?
The price and inventory of CY8C4147LQS-S243T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQS-S243T is usually 5 days.
3.What payment methods are accepted for CY8C4147LQS-S243T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQS-S243T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQS-S243T?
CY8C4147LQS-S243T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQS-S243T 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 CY8C4147LQS-S243T?
For technical support, including CY8C4147LQS-S243T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQS-S243T requirements.
6.How does Aetrix verify that CY8C4147LQS-S243T is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQS-S243T 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 CY8C4147LQS-S243T meets industry standards.
7.What is the process for return or replacement of CY8C4147LQS-S243T?
All CY8C4147LQS-S243T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQS-S243T, 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 CY8C4147LQS-S243T part is unused and in its original packaging.
Return procedure for CY8C4147LQS-S243T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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