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Infineon Technologies CY8C4147LQS-S243
- Part No.:
- CY8C4147LQS-S243
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQS-S243.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
CY8C4147LQS-S243 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 a CAN 2.0B block with time-triggered support, five reconfigurable SCBs (I²C/SPI/UART/LIN), and eight TCPWM blocks - deployed in automotive body control modules, smart door handles, and HVAC touch interfaces.
For engineers reviewing the CY8C4147LQS-S243 datasheet, CY8C4147LQS-S243 pinout, CY8C4147LQS-S243 application, or CY8C4147LQS-S243 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN capability, Deep Sleep current of 2.5 µA, and 54 GPIO with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where analog and digital resources are routed via a programmable interconnect matrix. Its CAPSENSE™ subsystem uses capacitive sigma-delta (CSD) modulation with hardware-accelerated SmartSense tuning, enabling robust touch operation under wet conditions without firmware intervention.
The CAN block supports full CAN 2.0B protocol with TTCAN timing compliance and integrates dedicated message RAM, filtering, and error counters. Clocking includes a 4–33 MHz ECO, PLL for 48-MHz core clock, and independent 32-kHz WCO for RTC - all managed by a hierarchical clock tree with glitch-free switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic control with Thumb-2 instruction set and NVIC-based interrupt handling. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure boot, firmware updates, and real-time data buffering in automotive ECUs. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SNR > 5:1 and SmartSense auto-tuning - delivers reliable touch detection through glass or plastic overlays with water tolerance. |
| CAN Interface | CAN 2.0B + TTCAN compliant block with 32-message RAM, hardware filtering, and timestamping - meets ISO 11898-1 and AUTOSAR-compliant communication requirements. |
| Power Range | 1.71 V to 5.5 V supply - allows direct connection to 3.3 V or 5 V automotive domains without level-shifting. |
| Low-Power Modes | Deep Sleep mode draws 2.5 µA system current with opamps and comparators active - enables always-on capacitive wake-up in battery-sensitive applications. |
| GPIO Count | 54 programmable pins with configurable drive modes (strong, open-drain, high-slew), pull-up/down, and interrupt capability - supports mixed-signal routing across analog/digital/CAPSENSE™ functions. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0 | I/O power supply | Supplies 1.71–5.5 V to Port 0 and associated analog peripherals; decoupling required per layout guidelines. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™ CSD, analog input, SCB0 I²C, or TCPWM0 - configured at runtime via PDL or ModusToolbox™. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY; supports 1 Mbps operation with internal termination resistors disabled. |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Drives 4–33 MHz ECO for precise timing; requires external 12–22 pF load capacitance per crystal spec. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Provides low-power RTC timing; operates independently during Deep Sleep with <1 µA current draw. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and adapts to environmental drift in real time. |
| Reconfigurable SCBs | Five serial blocks dynamically assigned as I²C master/slave, SPI master/slave, UART, or LIN slave - no fixed peripheral pinout constraints. |
| Programmable analog blocks | Two opamps operate in comparator, buffer, or DAC output modes; retain functionality in Deep Sleep for wake-on-touch. |
| TTCAN support | Time-triggered CAN scheduling with guaranteed message latency and synchronization to global time base - critical for distributed automotive control. |
| True random number generator | TRNG compliant with NIST SP 800-90B, delivering entropy for cryptographic key generation in secure boot and OTA update workflows. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on vehicle door trim with proximity wake-up and water splash immunity. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scanning, LIN slave communication to body controller, and PWM fan control. Use Value: Single-chip integration reduces BOM count; SmartSense ensures consistent touch response across temperature and humidity ranges. | Use Scenario: Touch-enabled HVAC interface with rotary encoder emulation and ambient light adaptive backlighting. IC Role / Device Role / Timing Role: Host processor managing CAPSENSE™, 12-bit SAR ADC for thermistor readings, and SCB-based I²C to display driver IC. Use Value: On-die ADC and opamp eliminate external signal conditioning; programmable GPIOs enable flexible button/slider layout without PCB redesign. |
| Electric Parking Brake (EPB) Actuator | Seat Position Memory System |
Use Scenario: Safety-critical actuator control with CAN communication, motor current monitoring, and fault logging. IC Role / Device Role / Timing Role: Real-time controller running ASIL-B software, interfacing with CAN bus, analog current sense, and TCPWM-driven H-bridge gate drivers. Use Value: AEC-Q100 Grade-S rating and TTCAN ensure deterministic timing for brake command execution and diagnostics reporting. | Use Scenario: Non-volatile seat position storage and recall using capacitive touch controls and CAN-linked memory module. IC Role / Device Role / Timing Role: Local node managing CAPSENSE™ inputs, EEPROM emulation in flash, and CAN message transmission to central gateway. Use Value: Integrated flash endurance management and CRC-protected data storage meet automotive data retention requirements (>10 years). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S423 | Same PSoC™ 4100S Plus core but in 48-pin TQFP package; lacks CAN block; rated Grade-A (–40°C to +85°C). | Suitable for non-CAN consumer or industrial HMI where extended temperature range is not required. | Select only if CAN and Grade-S are unnecessary - no pin or firmware compatibility with CY8C4147LQS-S243. |
| SPC560B50L5 | 32-bit Power Architecture MCU with e200z0 core; includes dual CAN, 512 KB flash, but no integrated CAPSENSE™ or programmable analog. | Targeted at engine management or transmission control where analog flexibility is secondary to compute throughput and safety certification. | Choose when ASIL-B functional safety certification and high-speed CAN are primary - requires external touch controller and signal chain. |
Compared with CY8C4147AZI-S423 and SPC560B50L5, CY8C4147LQS-S243 uniquely combines AEC-Q100 Grade-S, on-die CAPSENSE™ with SmartSense, TTCAN, and programmable analog/digital fabric - enabling single-chip HMI + control solutions in space-constrained automotive nodes.
Availability
CY8C4147LQS-S243 is available at Aetrix Electronics and suitable for automotive body electronics, touch-based climate control systems, and electric parking brake actuators requiring stable component supply and long-term lifecycle assurance.
Supply support for CY8C4147LQS-S243 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.
CY8C4147LQS-S243 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive human-machine interface and distributed control applications requiring mixed-signal integration, functional safety readiness, and AEC-Q100 compliance.
FAQ
Does CY8C4147LQS-S243 support AUTOSAR?
No, CY8C4147LQS-S243 does not natively support AUTOSAR OS or MCAL stacks. It is compatible with AUTOSAR-compliant CAN physical layer and timing requirements (e.g., TTCAN), but higher-layer stack integration requires third-party or custom implementation. Infineon provides PDL drivers and ModusToolbox™ middleware for CAN, TCPWM, and CAPSENSE™ - not AUTOSAR-certified components.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ 3.x and later for CY8C4147LQS-S243, including the Peripheral Driver Library (PDL), CAPSENSE™ Tuner, and CAN configuration tools. PSoC™ Creator is deprecated but still functional for legacy projects. Debugging requires KitProg3 or MiniProg4; programming is supported via SWD interface using standard Arm® debug probes.
Is the internal TRNG certified for cryptographic use?
Yes, the TRNG meets NIST SP 800-90B entropy requirements and is validated for use in secure boot key derivation and OTA firmware signature verification. It outputs 32-bit random values at up to 1 MHz, with hardware post-processing and health tests - documented in Infineon's PSoC™ 4 TRM and security white papers.
Can CAPSENSE™ operate while the device is in Deep Sleep?
Yes, CAPSENSE™ CSD scanning can run autonomously in Deep Sleep mode using the Low-Frequency Clock (LFCLK) and dedicated hardware sequencer. The device wakes on touch event with sub-100 µs latency, and only the required analog blocks remain powered - verified in CY8C4147LQS-S243 datasheet Section 1.7.1 and AN85951.
CY8C4147LQS-S243 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100
- Packaging:
- Tray
- 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-S243 FAQ
1.How can I place an order for CY8C4147LQS-S243 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQS-S243 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-S243 reliable?
The price and inventory of CY8C4147LQS-S243 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQS-S243 is usually 5 days.
3.What payment methods are accepted for CY8C4147LQS-S243?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQS-S243 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQS-S243?
CY8C4147LQS-S243 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQS-S243 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-S243?
For technical support, including CY8C4147LQS-S243 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQS-S243 requirements.
6.How does Aetrix verify that CY8C4147LQS-S243 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQS-S243 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-S243 meets industry standards.
7.What is the process for return or replacement of CY8C4147LQS-S243?
All CY8C4147LQS-S243 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQS-S243, 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-S243 part is unused and in its original packaging.
Return procedure for CY8C4147LQS-S243:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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