Infineon Technologies CY8C4147LQS-S265
- Part No.:
- CY8C4147LQS-S265
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQS-S265.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64QFN
- Quantity:
- Payment:

- Shipping:

Inventory:486
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Product details
Overview
CY8C4147LQS-S265 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, integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning, and a CAN 2.0B block supporting time-triggered CAN (TTCAN). It targets body control modules, smart sensors, and automotive HMI systems requiring robust touch interface and real-time communication.
For engineers reviewing the CY8C4147LQS-S265 datasheet, CY8C4147LQS-S265 pinout, CY8C4147LQS-S265 application, or CY8C4147LQS-S265 equivalent, key selection considerations include its 54-GPIO count with full CAPSENSE™/analog/digital reconfigurability, Deep Sleep current of 2.5 µA with operational analog, and TTCAN compliance for deterministic automotive networking.
Technical Context
This device implements a tightly integrated mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, two IDACs, two low-power comparators) coexist with digital resources including eight TCPWM blocks, five SCBs (I²C/SPI/UART/LIN), and a dedicated CAN 2.0B controller with TTCAN support. All analog and digital peripherals are routed via a flexible interconnect matrix.
The clock system combines a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO, feeding a PLL to generate the precise 48-MHz CPU clock. True Random Number Generation (TRNG) is hardware-accelerated for cryptographic key derivation in secure boot or authentication flows.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution for automotive control loops and sensor fusion. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports complex firmware with CAPSENSE™ middleware and CAN protocol stack. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct connection to 3.3 V or 5 V automotive subsystems without level-shifting. |
| Temperature Range | Grade-S: –40°C to +105°C - qualified for under-hood and cabin electronics per AEC-Q100 Rev G. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered scheduling for synchronized actuator control in chassis or powertrain networks. |
| Capacitive Sensing | CAPSENSE™ CSD with >5:1 SNR and SmartSense auto-tuning - delivers reliable touch detection through glass or plastic overlays in wet/harsh environments. |
| Low-Power Mode | Deep Sleep at 2.5 µA with active analog - enables always-on capacitive wake-up while preserving battery life in parked vehicle states. |
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 |
|---|---|---|
| VDD | Core & I/O supply | Primary 1.71–5.5 V power input; decoupling required per GPIO group for noise immunity. |
| VSS | Digital ground | Reference return for digital logic and CPU subsystem; separate analog ground routing recommended. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, analog input/output, or digital functions; configurable drive strength/slew rate per pin. |
| P1[0]–P1[7] | Programmable GPIO | Include dedicated CAN_TX/CAN_RX on P1[2]/P1[3]; also support TCPWM capture/compare and SCB interfaces. |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Connects to 4–33 MHz ECO for high-accuracy timing; required for CAN bit-rate stability and USB-free clocking. |
| WCO_IN / WCO_OUT | Watch crystal oscillator | 32.768 kHz reference for RTC and low-power wakeup timer; operates independently in Deep Sleep mode. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable analog blocks | Two opamps usable as buffers, comparators, or ADC front-ends - eliminates external signal-conditioning components in sensor nodes. |
| Hardware TRNG | Dedicated entropy source compliant with NIST SP 800-90B - enables FIPS-aligned secure key generation without software polling delays. |
| Smart I/O logic | Boolean combinational logic on port inputs/outputs - implements debounce, edge detection, or state-machine pre-processing before CPU intervention. |
| Automatic CAPSENSE™ tuning | SmartSense algorithm adjusts sensor parameters in real time - removes manual calibration effort across temperature, humidity, and overlay thickness variations. |
| Configurable SCBs | Five independent serial blocks runtime-reconfigurable as I²C/SPI/UART/LIN - reduces BOM count by consolidating multiple interface ICs into one die. |
Applications
| Automotive Door Module | Smart HVAC Control Panel |
|---|---|
Use Scenario: Integrated door latch, window lift, and mirror adjustment with capacitive touch controls and LIN communication to body domain controller. IC Role / Device Role / Timing Role: Main MCU executing motor control PWM, CAPSENSE™ scan, and LIN slave protocol stack with sub-100 µs response latency. Use Value: Single-chip integration replaces discrete MCU + touch controller + LIN transceiver, reducing PCB area by 35% and enabling Class-A surface-mount design. | Use Scenario: Climate control interface with slider bars, push buttons, and ambient light sensing - operating in vehicle cabin at up to +105°C ambient. IC Role / Device Role / Timing Role: CAPSENSE™ master with automatic water tolerance compensation and real-time thermal drift correction via on-die temperature sensor. Use Value: Maintains >99.5% touch accuracy during condensation events and meets AEC-Q100 Grade-S thermal requirements without external thermal management. |
| Electric Power Steering (EPS) Sensor Node | Automotive Gateway Subsystem |
Use Scenario: Torque and position sensing node with SPI-connected Hall sensors, local diagnostics, and CAN reporting to main EPS ECU. IC Role / Device Role / Timing Role: Signal conditioner and CAN message aggregator with hardware CRC and TTCAN time-stamping for synchronized torque sampling. Use Value: Achieves <5 µs jitter on torque sample timestamps, satisfying ISO 26262 ASIL-B timing constraints for steering assist functions. | Use Scenario: Low-tier gateway bridging LIN slave devices (e.g., seat controls) to CAN backbone in entry-level vehicles. IC Role / Device Role / Timing Role: Dual-interface bridge with LIN slave and CAN 2.0B master operation, managing message prioritization and buffer overflow protection. Use Value: Enables cost-optimized gateway implementation with no external CAN/LIN transceivers required - all PHY drivers integrated. |
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, includes Ethernet MAC but no integrated CAPSENSE™ | Targets higher-performance gateway or ADAS sensor fusion; lacks native capacitive touch capability | Select when floating-point math, Ethernet, or larger memory is required - not drop-in for CAPSENSE™-centric designs |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, 512 KB flash, AEC-Q100 Grade-2 (–40°C to +105°C), no CAN FD or TTCAN | Suitable for basic body control; limited analog flexibility and no hardware TRNG | Choose for legacy code migration or ultra-low-cost entry points where advanced security and mixed-signal programmability are non-critical |
Compared with S32K144W and RL78/F14, CY8C4147LQS-S265 uniquely integrates CAPSENSE™, TTCAN, and hardware TRNG in a single AEC-Q100 Grade-S package - making it optimal for cost-sensitive, touch-enabled automotive nodes requiring deterministic timing and embedded security.
Availability
CY8C4147LQS-S265 is available at Aetrix Electronics and suitable for automotive body electronics, smart sensor nodes, and HMI control panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4147LQS-S265 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 manufacturing and R&D centers.
CY8C4147LQS-S265 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive-grade human-machine interface and distributed control applications requiring integrated capacitive sensing, CAN connectivity, and functional safety readiness.
FAQ
Does CY8C4147LQS-S265 support CAN FD?
No. CY8C4147LQS-S265 integrates a CAN 2.0B controller with time-triggered capability (TTCAN), but does not support CAN FD data rates or extended frame formats. Its CAN block complies with ISO 11898-1:2015 for classical CAN only, with bit rates up to 1 Mbps and hardware timestamping for synchronization.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator (v4.4) for CY8C4147LQS-S265. ModusToolbox™ provides Eclipse-based IDE, Peripheral Driver Library (PDL), CAPSENSE™ middleware, and BSPs for CY8CKIT-149 and CY8CKIT-041-41XX kits. PSoC™ Creator offers schematic-driven design with automatic analog/digital routing and component-based API generation.
Is the TRNG certified to any cryptographic standards?
The hardware TRNG in CY8C4147LQS-S265 meets NIST SP 800-90B entropy requirements and is validated for use in Infineon's Secure Boot and Key Provisioning workflows. While not individually FIPS 140-3 certified, it serves as the entropy source for keys used in FIPS-aligned implementations when paired with appropriate software libraries and secure storage.
Can all 54 GPIO pins be used simultaneously as CAPSENSE™ inputs?
No. Although up to 54 GPIO pins are available and any pin can be configured for CAPSENSE™, the underlying CSD block supports a maximum of 32 simultaneous sensing channels. Channel count is constrained by internal analog routing resources and scan time budgets - actual usable CAPSENSE™ pins depend on resolution, averaging, and scan frequency configuration.
CY8C4147LQS-S265 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-VFQFN 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, CapSense, 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-S265 FAQ
1.How can I place an order for CY8C4147LQS-S265 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQS-S265 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-S265 reliable?
The price and inventory of CY8C4147LQS-S265 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQS-S265 is usually 5 days.
3.What payment methods are accepted for CY8C4147LQS-S265?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQS-S265 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQS-S265?
CY8C4147LQS-S265 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQS-S265 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-S265?
For technical support, including CY8C4147LQS-S265 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQS-S265 requirements.
6.How does Aetrix verify that CY8C4147LQS-S265 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQS-S265 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-S265 meets industry standards.
7.What is the process for return or replacement of CY8C4147LQS-S265?
All CY8C4147LQS-S265 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQS-S265, 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-S265 part is unused and in its original packaging.
Return procedure for CY8C4147LQS-S265:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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