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Infineon Technologies CY8C4147LQA-S243T
- Part No.:
- CY8C4147LQA-S243T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQA-S243T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,773
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Product details
Overview
CY8C4147LQA-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 TCPWMs-used in motor control, touch HMI, and body electronics.
For engineers reviewing the CY8C4147LQA-S243T datasheet, CY8C4147LQA-S243T pinout, CY8C4147LQA-S243T application, or CY8C4147LQA-S243T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current ≤ 2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where analog and digital resources-including two continuous-time opamps, a 12-bit 1-Msps SAR ADC, dual low-power comparators, and two IDACs-are routed via programmable interconnect fabric. Its CAN block supports time-triggered operation with hardware synchronization to system clocks and configurable message buffers.
The clock system integrates multiple sources: a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO-enabling precise timing for CAN bit arbitration, TCPWM dead-time insertion, and CAPSENSE™ sigma-delta modulation-all while maintaining Deep Sleep mode operation with active analog peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution of motor control loops and CAN protocol stacks. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader, firmware updates, and dual-bank operation for fail-safe OTA. |
| CAN Interface | CAN 2.0B + TTCAN - provides time-triggered scheduling for synchronized actuator control in chassis and powertrain systems. |
| CAPSENSE™ Performance | Sigma-delta CSD with SNR > 5:1 and water tolerance - delivers robust touch detection in automotive interior panels under condensation or wet-finger conditions. |
| Low-Power Modes | Deep Sleep with 2.5 µA system current and active analog - sustains capacitive wake-up, CAN bus monitoring, and RTC without external supervision. |
| GPIO Flexibility | 54 programmable pins with configurable drive modes, slew rates, and interrupt-capable inputs - enables direct connection to sensors, LEDs, switches, and LIN transceivers without external logic. |
| ADC Capability | 12-bit 1-Msps SAR ADC with differential input, channel sequencer, and signal averaging - supports high-accuracy battery voltage, temperature, and current sensing in body control modules. |
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–VDDIO3 | I/O power supply domains | Independent 1.71–5.5 V rails per port group - allows mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor inputs). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO banks | Each pin supports CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - no fixed peripheral pinout required. |
| CAN_TX / CAN_RX | Differential CAN bus interface | Dedicated pins with internal termination and slew control - meet ISO 11898-2 electrical requirements without external components. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for CAN bit timing accuracy and PLL reference - critical for TTCAN synchronization stability. |
| WCO_IN / WCO_OUT | 32.768 kHz watch crystal interface | Enables precise RTC operation and low-power wake-up timing independent of main clock domain. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning effort and ensures consistent performance across temperature, voltage, and PCB stackup variations. |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and simplifies multi-protocol gateway design. |
| TCPWM Kill Signal Triggering | Comparator outputs directly trigger PWM shutdown within one clock cycle - enables sub-microsecond fault response for motor overcurrent protection. |
| True Random Number Generator (TRNG) | Meets NIST SP 800-90B entropy requirements - supports secure key generation for TLS handshake and firmware authentication in telematics modules. |
| Capacitive Sigma-Delta (CSD) | Integrated modulator and decimator deliver > 5:1 SNR at 100 Hz update rate - enables reliable proximity detection through plastic or glass overlays in center console interfaces. |
Applications
| Automotive Touch HMI | Body Control Module (BCM) |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on center console, door panels, and steering wheel controls operating in humid, high-temperature cabins. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LED feedback, and communicating via CAN/LIN to vehicle network. Use Value: SmartSense auto-tuning maintains stable touch response across –40°C to +105°C and under condensation, eliminating recalibration during production or field use. | Use Scenario: Centralized control of lighting, window lift, mirror adjustment, and seat position memory in entry/mid-tier vehicles. IC Role / Device Role / Timing Role: System controller interfacing with LIN slaves (door modules), driving relays/LEDs, and monitoring analog sensors (voltage, temp). Use Value: Integrated 12-bit SAR ADC and 54 GPIOs reduce external signal conditioning and level-shifting components, lowering total solution cost. |
| Electric Power Steering (EPS) Assist | Telematics Control Unit (TCU) Gateway |
Use Scenario: Secondary safety-critical controller monitoring torque sensor signals and validating motor phase currents in EPS subsystems. IC Role / Device Role / Timing Role: Redundant MCU running independent diagnostics, connected via CAN FD to primary EPS ECU and reading analog torque/position sensors. Use Value: Deep Sleep mode with active analog comparators enables always-on torque drift detection at < 3 µA, supporting ASIL-B functional safety monitoring. | Use Scenario: In-vehicle gateway aggregating data from CAN, LIN, and Bluetooth modules before forwarding to cloud via cellular modem. IC Role / Device Role / Timing Role: Protocol translator and security enforcer handling TLS offload, secure boot, and OTA update verification. Use Value: TRNG + hardware AES acceleration enables cryptographic operations without software-only bottlenecks, meeting UNECE R155 cybersecurity management system (CSMS) requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144HAT0MLHT | ARM Cortex-M4F @ 112 MHz, 1 MB flash, CAN FD only (no TTCAN), no integrated CAPSENSE™ | Targeted at higher-performance powertrain and ADAS edge nodes requiring floating-point math and CAN FD bandwidth | Select when CAN FD throughput > 5 Mbps or FPU-based control algorithms are required; requires external touch controller. |
| Renesas RL78/F14 | RL78 core @ 32 MHz, 512 KB flash, LIN/CAN 2.0 only, no TRNG or sigma-delta CSD | Cost-sensitive body electronics with basic LIN/CAN bridging and minimal analog sensing | Select for non-safety-critical, low-complexity modules where AEC-Q100 Grade-S sufficiency and CAPSENSE™ are not needed. |
Compared with S32K144HAT0MLHT and RL78/F14, CY8C4147LQA-S243T uniquely integrates high-SNR capacitive sensing, TTCAN, and sub-µA Deep Sleep with active analog-making it optimal for touch-centric, safety-aware automotive ECUs where mixed-signal integration reduces component count and validation scope.
Availability
CY8C4147LQA-S243T is available at Aetrix Electronics and suitable for automotive touch HMI, body control modules, electric power steering assist, and telematics gateways requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CY8C4147LQA-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 manufacturing and R&D centers.
CY8C4147LQA-S243T belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive-grade mixed-signal control applications requiring integrated capacitive sensing, CAN/TTCAN, and ultra-low-power operation in harsh environments.
FAQ
Does CY8C4147LQA-S243T support CAN FD?
No. This device implements a CAN 2.0B controller with optional time-triggered CAN (TTCAN) capability, but does not support CAN FD's higher data-rate frames or flexible data-length payloads. For CAN FD, consider Infineon's AURIX™ TC3xx family or NXP S32K3xx devices.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator v4.4 for firmware development. Hardware debugging requires MiniProg3 or KitProg3 programmers. The CY8CKIT-149 prototyping kit provides full pin access, onboard CAN transceiver, and CAPSENSE™ evaluation headers.
Is the TRNG certified to NIST SP 800-90B?
Yes. The TRNG in CY8C4147LQA-S243T meets NIST SP 800-90B entropy requirements and is validated per Infineon's Common Criteria certification (EAL5+ for PSoC™ 4100S Plus). It is qualified for cryptographic key generation in automotive security applications compliant with ISO/SAE 21434.
Can all 54 GPIOs be used simultaneously as CAPSENSE™ inputs?
No. While any GPIO can be configured for CAPSENSE™, the hardware limits concurrent CSD channels to 32 due to shared sigma-delta modulator resources. Up to 32 electrodes may operate simultaneously with full SNR; additional electrodes require time-multiplexed scanning, reducing effective update rate.
CY8C4147LQA-S243T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- 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 ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4147LQA-S243T FAQ
1.How can I place an order for CY8C4147LQA-S243T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQA-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 CY8C4147LQA-S243T reliable?
The price and inventory of CY8C4147LQA-S243T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQA-S243T is usually 5 days.
3.What payment methods are accepted for CY8C4147LQA-S243T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQA-S243T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQA-S243T?
CY8C4147LQA-S243T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQA-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 CY8C4147LQA-S243T?
For technical support, including CY8C4147LQA-S243T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQA-S243T requirements.
6.How does Aetrix verify that CY8C4147LQA-S243T is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQA-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 CY8C4147LQA-S243T meets industry standards.
7.What is the process for return or replacement of CY8C4147LQA-S243T?
All CY8C4147LQA-S243T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQA-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 CY8C4147LQA-S243T part is unused and in its original packaging.
Return procedure for CY8C4147LQA-S243T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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