My Inquiry
My Account
Infineon Technologies CY8C4147LQE-S243
- Part No.:
- CY8C4147LQE-S243
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQE-S243.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,403
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4147LQE-S243 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Plus programmable system-on-chip featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with >5:1 SNR. It includes a CAN 2.0B block with TTCAN support, five reconfigurable SCBs, and eight TCPWM blocks - deployed in motor control, automotive body electronics, and touch-enabled cockpit interfaces.
For engineers reviewing the CY8C4147LQE-S243 datasheet, CY8C4147LQE-S243 pinout, CY8C4147LQE-S243 application, or CY8C4147LQE-S243 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAN 2.0B + TTCAN timing compliance, Deep Sleep current (2.5 µA), CAPSENSE™ water-tolerant sigma-delta architecture, and 54-GPIO flexibility with programmable drive modes.
Technical Context
This device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core coordinates programmable analog (two opamps, 12-bit 1-Msps SAR ADC, dual IDACs) and digital resources (TCPWM, SCB, Smart I/O). Its clock system combines a 4–33 MHz ECO, PLL, WCO, and ±2% IMO for deterministic timing across automotive operating conditions.
The CAN block supports time-triggered communication with hardware synchronization, while CAPSENSE™ uses capacitance-sigma-delta (CSD) modulation with automatic SmartSense tuning - enabling robust touch detection under wet or noisy environments without firmware calibration overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution of automotive control loops and sensor fusion algorithms. |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB SRAM - supports secure bootloader storage, OTA update partitioning, and real-time data buffering. |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and instrument cluster applications per AEC-Q100 Rev G. |
| CAN Interface | CAN 2.0B with TTCAN support - provides synchronized message scheduling and fault-tolerant communication for chassis and powertrain networks. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection through condensation, rain, or glove use without external shielding. |
| Deep Sleep Current | 2.5 µA digital system current - enables always-on wake-on-touch functionality in battery-sensitive automotive modules. |
| GPIO Count | 54 programmable pins - allows single-chip integration of touch, LED drive, motor PWM, LIN, and analog sensor interfaces. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply domains | Independent 1.71–5.5 V rails per port group - enables mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0.0–P9.7 | Programmable GPIO | 54 total pins supporting CAPSENSE™, analog input/output, high-drive LCD segment, or digital logic routing via Smart I/O. |
| CAN_TX / CAN_RX | Differential CAN bus interface | Dedicated physical layer pins with internal termination and slew-rate control - reduces external component count for CAN node design. |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Supports 4–33 MHz ECO for precise clock generation - required for CAN bit timing accuracy and TTCAN synchronization. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables low-power RTC operation during Deep Sleep - maintains timekeeping while main CPU and analog blocks are powered down. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B + TTCAN | Hardware time-triggered scheduling eliminates software jitter - critical for synchronized actuator control in ADAS subsystems. |
| Capacitive Sigma-Delta (CSD) | Self-calibrating CSD engine with >5:1 SNR - delivers production-ready touch performance without custom PCB layout or shielding. |
| SmartSense Auto-Tuning | Firmware-free baseline and threshold adaptation - reduces development time for touch UI certification across temperature and humidity gradients. |
| Deep Sleep with Analog Active | Opamps and comparators remain operational at 2.5 µA system current - enables continuous sensor monitoring (e.g., door handle proximity) with instant wake-up. |
| Five Reconfigurable SCBs | Runtime-selectable I²C/SPI/UART/LIN per block - allows dynamic peripheral remapping to support multiple ECU variants from one BOM. |
Applications
| Automotive Door Module | Instrument Cluster Touch UI |
|---|---|
Use Scenario: Integrated control of power windows, locks, mirrors, and capacitive door handle sensing. IC Role / Device Role / Timing Role: Central MCU executing LIN slave protocol, CAPSENSE™ acquisition, and PWM motor control with TTCAN coordination for vehicle network sync. Use Value: Single-chip replacement for discrete MCU + touch controller + LIN transceiver - reduces BOM cost and PCB area by 32% versus legacy solutions. | Use Scenario: Responsive, water-tolerant touch overlay for digital gauge clusters in EVs and premium vehicles. IC Role / Device Role / Timing Role: Real-time CAPSENSE™ processing with hardware SmartSense, driving segmented LCD via GPIO, and communicating status over CAN 2.0B. Use Value: Eliminates need for external touch controller IC and dedicated display driver - simplifies EMC design and achieves IPX4-rated usability. |
| Body Control Module (BCM) | Seat Position Memory System |
Use Scenario: Centralized management of lighting, wipers, HVAC actuators, and ambient light sensing. IC Role / Device Role / Timing Role: Multi-peripheral coordinator using SCBs for LIN/I²C sensor buses, TCPWM for dimmable LED drivers, and CAN for gateway handshaking. Use Value: 54-GPIO flexibility enables direct connection of 12+ analog/digital sensors and 8+ PWM loads - avoids external I/O expanders. | Use Scenario: Precise position tracking and memory recall for multi-motor automotive seats with tilt, lumbar, and recline functions. IC Role / Device Role / Timing Role: Simultaneous analog current sensing (IDAC + SAR ADC) on motor windings, quadrature decoding for position feedback, and CAN-based profile storage/retrieval. Use Value: On-chip 12-bit SAR ADC with channel sequencer and signal averaging enables <±0.5% position error - meets ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 112 MHz; no integrated CAPSENSE™; requires external touch controller. | Better floating-point performance for motor control math; lacks native capacitive sensing. | Select when advanced DSP or ASIL-D safety certification is required - not drop-in for touch-centric designs. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; integrated touch I/O but no CAN FD or TTCAN; lower SNR CAPSENSE™. | Lower cost for basic body electronics; limited to CAN 2.0A without time-triggered capability. | Choose for cost-sensitive non-critical modules where TTCAN and >5:1 SNR are not mandated. |
Compared with S32K144 and RL78/F14, CY8C4147LQE-S243 uniquely integrates AEC-Q100 Grade-S qualified CAPSENSE™, TTCAN, and Deep Sleep analog operation - making it optimal for touch-enabled automotive ECUs requiring minimal external components and guaranteed wet-environment reliability.
Availability
CY8C4147LQE-S243 is available at Aetrix Electronics and suitable for automotive door modules, instrument cluster touch interfaces, body control units, and seat position memory systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4147LQE-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 centers and ISO/TS 16949-certified automotive production lines.
CY8C4147LQE-S243 belongs to the PSoC™ 4100S Plus product line, engineered specifically for AEC-Q100-compliant automotive human-machine interface (HMI) and body electronics applications requiring integrated capacitive sensing, CAN connectivity, and ultra-low-power operation.
FAQ
Does CY8C4147LQE-S243 support CAN FD?
No. This device implements CAN 2.0B with optional time-triggered communication (TTCAN) but does not support CAN FD data rates or extended frame formats. Its CAN block is fully compliant with ISO 11898-1:2015 for classical CAN operation up to 1 Mbps, with hardware timestamping and synchronization registers for deterministic scheduling.
What is the maximum operating frequency of the internal main oscillator (IMO)?
The internal main oscillator (IMO) operates at a factory-trimmed 48 MHz with ±2% accuracy across temperature and voltage. It serves as the default clock source for the CPU and peripherals, and can be used directly or fed into the PLL for higher-frequency operation - though the device's maximum CPU speed remains 48 MHz regardless of clock source.
Can all 54 GPIO pins be used simultaneously for CAPSENSE™?
No. While all 54 GPIO pins are CAPSENSE™-capable, the hardware limits concurrent active sense channels to 32 due to shared analog routing resources and CTB (continuous-time block) constraints. Practical designs typically allocate 12–24 pins for touch buttons/sliders, reserving others for digital I/O, analog sensing, or communication interfaces.
Is ModusToolbox™ required for development, or can PSoC™ Creator still be used?
PSoC™ Creator remains fully supported for CY8C4147LQE-S243 development and is recommended for schematic-driven design with automatic analog/digital routing. ModusToolbox™ offers modern IDE-neutral workflows and GitHub-hosted PDL libraries but does not replace Creator's hardware configuration capabilities - both tools interoperate via shared component APIs and generated code.
CY8C4147LQE-S243 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:
- 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4147LQE-S243 FAQ
1.How can I place an order for CY8C4147LQE-S243 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQE-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 CY8C4147LQE-S243 reliable?
The price and inventory of CY8C4147LQE-S243 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQE-S243 is usually 5 days.
3.What payment methods are accepted for CY8C4147LQE-S243?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQE-S243 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQE-S243?
CY8C4147LQE-S243 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQE-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 CY8C4147LQE-S243?
For technical support, including CY8C4147LQE-S243 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQE-S243 requirements.
6.How does Aetrix verify that CY8C4147LQE-S243 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQE-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 CY8C4147LQE-S243 meets industry standards.
7.What is the process for return or replacement of CY8C4147LQE-S243?
All CY8C4147LQE-S243 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQE-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 CY8C4147LQE-S243 part is unused and in its original packaging.
Return procedure for CY8C4147LQE-S243:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4147LQE-S243 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
