Infineon Technologies CY8C4147LQE-S453T
- Part No.:
- CY8C4147LQE-S453T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQE-S453T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,202
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Product details
Overview
CY8C4147LQE-S453T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade 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 (SCBs), eight 16-bit TCPWMs, a CAN 2.0B controller with TTCAN support, and operates from 1.71 V to 5.5 V.
For engineers reviewing the CY8C4147LQE-S453T datasheet, CY8C4147LQE-S453T pinout, CY8C4147LQE-S453T application, or CY8C4147LQE-S453T equivalent, key selection criteria include automotive-grade temperature range, on-chip CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN compliance, Deep Sleep current ≤ 2.5 µA, and GPIO flexibility across 54 pins with programmable drive modes.
Technical Context
The device integrates a deterministic 48-MHz Arm® Cortex®-M0+ core with dual-bus AHB matrix, enabling concurrent flash/SRAM access and DMA-driven peripheral operation. Its analog subsystem includes two opamps supporting ADC input buffering and Deep Sleep operation, plus a 12-bit 1-Msps SAR ADC with channel sequencer and signal averaging.
Digital flexibility is delivered via Smart I/O blocks for Boolean logic on GPIOs, eight TCPWMs with quadrature decode and comparator-triggered kill signals, and five SCBs supporting runtime-reconfigurable I²C/SPI/UART/LIN. The CAN block implements full CAN 2.0B with time-triggered extensions for deterministic automotive networking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - deterministic real-time execution with NVIC and low-latency interrupt handling |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - sufficient for AUTOSAR-compliant firmware and CAPSENSE™ firmware stacks |
| Operating Voltage | 1.71 V to 5.5 V - supports direct connection to 3.3 V or 5 V automotive domains without level-shifting |
| Temperature Range | Grade-S: –40°C to +105°C - qualified for under-hood and body-control module deployment |
| Capacitive Sensing | CAPSENSE™ CSD with SNR > 5:1 and SmartSense auto-tuning - enables robust touch interfaces in humid or wet environments |
| CAN Interface | CAN 2.0B + TTCAN - supports time-synchronized message scheduling for safety-critical vehicle networks |
| Low-Power Mode | Deep Sleep: 2.5 µA system current with opamps and comparators active - enables always-on capacitive wake-up with sub-millisecond latency |
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 Rails | Independent 1.71–5.5 V domains per port group - enables mixed-voltage interface (e.g., 1.8 V sensor + 3.3 V CAN transceiver) |
| P0.0–P9.7 | Programmable GPIOs (up to 54) | Each pin supports CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - no fixed peripheral pinout |
| 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 USB-like timing margins |
| CAN_TX / CAN_RX | CAN Bus Physical Layer Interface | Dedicated differential pair with internal termination control - connects directly to ISO 11898-2 compliant transceiver |
| VDDA / VSSA | Analog Power and Ground | Separate analog supply domain - isolates noise-sensitive ADC/opamp operation from digital switching transients |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and compensates for environmental drift (humidity, temperature, aging) |
| TTCAN Support | Time-triggered communication scheduling ensures deterministic message transmission windows for ASIL-B functional safety paths |
| Deep Sleep Analog Retention | Opamps and comparators remain operational at 2.5 µA total system current - enables continuous capacitive proximity detection during sleep |
| Reconfigurable SCBs | Five independent serial blocks can be dynamically assigned as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and PCB footprint |
| GPIO Drive Programmability | Configurable slew rate, drive strength (4–20 mA), and pull-up/down per pin - optimizes EMI and signal integrity for diverse bus topologies |
Applications
| Automotive Body Control Module | Touch-Based HVAC Control Panel |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and mirrors in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing body control firmware, managing LIN slaves, and interfacing with CAN backbone. Use Value: Integrated CAN + TTCAN ensures synchronized actuator commands; 54 GPIOs simplify wiring harness reduction by consolidating discrete drivers. |
Use Scenario: Capacitive touch interface for climate, fan speed, and air distribution in passenger cabin. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ controller with hardware SmartSense and Deep Sleep wake capability. Use Value: SNR > 5:1 and water tolerance enable reliable operation with condensation or accidental spills; no external touch controller IC required. |
| Electric Power Steering (EPS) Sensor Interface | Automotive Instrument Cluster Display Driver |
Use Scenario: Acquisition and preprocessing of torque, position, and motor current signals in EPS systems. IC Role / Device Role / Timing Role: Analog front-end processor with 12-bit 1-Msps SAR ADC, opamp buffering, and DMA-driven data streaming to host MCU. Use Value: On-chip opamps condition low-level sensor outputs; sequencer and averaging reduce software overhead and improve measurement repeatability. |
Use Scenario: Driving segmented LCD displays for speed, fuel, and warning indicators in analog/digital hybrid clusters. IC Role / Device Role / Timing Role: LCD segment driver using GPIOs with programmable drive strength and timing control. Use Value: Eliminates external LCD driver IC; GPIO-based segment control allows dynamic reconfiguration of display layout via firmware update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S453 | Same PSoC™ 4100S Plus core but in 48-pin TQFP package; lacks exposed thermal pad and has lower thermal performance. | Suitable for non-thermally constrained prototypes or legacy board designs requiring through-hole-compatible footprint. | Select only if mechanical compatibility with existing TQFP layouts is mandatory and thermal derating is acceptable. |
| SPC560B50L5 | 32-bit Power Architecture MCU with ASIL-B certification; no integrated CAPSENSE™ or reconfigurable analog/digital blocks. | Targeted at powertrain control where functional safety certification is primary; requires external touch controller for HMI. | Choose when ISO 26262 ASIL-B certification is contractually required and CAPSENSE™ integration is not needed. |
Compared with CY8C4147AZI-S453 and SPC560B50L5, CY8C4147LQE-S453T uniquely combines AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense, and field-programmable analog/digital resources - reducing component count and enabling rapid HMI + control co-design in space-constrained automotive modules.
Availability
CY8C4147LQE-S453T is available at Aetrix Electronics and suitable for automotive body control modules, touch-based HVAC panels, electric power steering sensor interfaces, and instrument cluster display drivers requiring stable component supply and long-term lifecycle assurance.
Supply support for CY8C4147LQE-S453T 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 infrastructure.
CY8C4147LQE-S453T belongs to the PSoC™ 4100S Plus product line, engineered specifically for cost-sensitive, space-constrained automotive applications requiring integrated capacitive sensing, CAN connectivity, and low-power operation across extended temperature ranges.
FAQ
Is CY8C4147LQE-S453T qualified for automotive use?
Yes. It is AEC-Q100 qualified for Grade-S (–40°C to +105°C), with full documentation including stress test reports, failure analysis summaries, and reliability data published in Infineon's official qualification summary for PSoC™ 4100S Plus devices.
Does it support CAN FD or only classical CAN?
CY8C4147LQE-S453T implements CAN 2.0B with TTCAN extensions only - it does not support CAN FD data rates or frame formats. The CAN block is limited to 1 Mbps classical CAN with time-triggered scheduling capabilities.
Can CAPSENSE™ operate while the device is in Deep Sleep mode?
Yes. CAPSENSE™ CSD scanning can run autonomously in Deep Sleep mode using the internal ILO clock, with wake-up triggered by touch events. Opamps and comparators remain powered, enabling sub-2.5 µA active-sensing current.
What development tools are officially supported?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator (v4.4) for firmware development. Hardware debugging requires MiniProg3 or KitProg3 programmers; CY8CKIT-149 is the reference prototyping kit validated for this specific part number.
CY8C4147LQE-S453T 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, CapSense, DMA, LCD, 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-S453T FAQ
1.How can I place an order for CY8C4147LQE-S453T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQE-S453T 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-S453T reliable?
The price and inventory of CY8C4147LQE-S453T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQE-S453T is usually 5 days.
3.What payment methods are accepted for CY8C4147LQE-S453T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQE-S453T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQE-S453T?
CY8C4147LQE-S453T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQE-S453T 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-S453T?
For technical support, including CY8C4147LQE-S453T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQE-S453T requirements.
6.How does Aetrix verify that CY8C4147LQE-S453T is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQE-S453T 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-S453T meets industry standards.
7.What is the process for return or replacement of CY8C4147LQE-S453T?
All CY8C4147LQE-S453T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQE-S453T, 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-S453T part is unused and in its original packaging.
Return procedure for CY8C4147LQE-S453T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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