Infineon Technologies CY8C4147LQAS245XQSA1
- Part No.:
- CY8C4147LQAS245XQSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQAS245XQSA1.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64VFQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY8C4147LQAS245XQSA1 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, 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 deterministic communication.
For engineers reviewing the CY8C4147LQAS245XQSA1 datasheet, CY8C4147LQAS245XQSA1 pinout, CY8C4147LQAS245XQSA1 application, or CY8C4147LQAS245XQSA1 equivalent, this device delivers verified automotive-grade mixed-signal programmability with on-chip analog (12-bit SAR ADC, dual opamps, IDACs), digital reconfigurability (TCPWM, SCBs), and secure TRNG for key generation in safety-critical embedded designs.
Technical Context
The device integrates a fixed-function CAN 2.0B controller with TTCAN support, enabling synchronized message transmission in distributed automotive networks. Its clock system includes a 4–33 MHz ECO, PLL for 48-MHz core timing, and independent 32-kHz WCO/ILO oscillators for low-power wake-up and RTC functions.
Programmable analog resources include two continuous-time opamps with Deep Sleep operation, a 12-bit 1-Msps SAR ADC with sequencer and averaging, and a dedicated capacitance-sensing sigma-delta (CSD) block delivering >5:1 SNR and water-tolerant touch performance-both validated per AEC-Q100 Grade-S requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution of automotive control tasks with Thumb-2 instruction set efficiency. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports complex firmware including CAPSENSE™ tuning, CAN protocol stack, and sensor fusion logic. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - provides high-resolution analog monitoring for battery voltage, temperature, and current sensing. |
| CAN Interface | CAN 2.0B with TTCAN support - delivers time-synchronized messaging for chassis and powertrain sub-system coordination under ISO 11898-1. |
| Capacitive Sensing | CAPSENSE™ CSD block with SmartSense auto-tuning and >5:1 SNR - enables reliable touch buttons/sliders in wet or noisy automotive cabin environments. |
| Operating Temp | Grade-S: –40°C to +105°C - qualified per AEC-Q100 Rev G for under-hood and interior module deployment. |
| GPIO Count | Up to 54 programmable pins - supports flexible I/O mapping for mixed-signal routing, including simultaneous analog input, digital PWM, and CAPSENSE™ electrode assignment. |
Pinout & Package
This device is packaged in a 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per Infineon's official pinout diagram for CY8C4147LQAS245XQSA1 (Rev. *S, p.15–19).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O supply rails | Independent 1.71–5.5 V domains allow mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™ electrode, analog input, digital PWM output, or SCB serial function - configured at runtime via PDL APIs. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY (e.g., TJA1042); supports dominant/recessive bit timing per ISO 11898-2 physical layer spec. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 4–33 MHz ECO for precise clock source; required for CAN bit timing accuracy and USB-like timing stability. |
| WCO_IN / WCO_OUT | 32.768 kHz watch crystal interface | Enables low-power RTC operation and wake-up from Deep Sleep mode without CPU intervention. |
Key Features
| Feature | Design Value |
|---|---|
| Deep Sleep Mode | 2.5 µA system current with operational analog blocks (opamps, comparators) - enables always-on touch wake-up and sensor monitoring in battery-constrained modules. |
| SmartSense Auto-Tuning | Firmware-driven automatic CAPSENSE™ baseline calibration and noise compensation - eliminates manual tuning across production batches and environmental drift. |
| Reconfigurable SCBs | Five serial communication blocks each configurable as I²C, SPI, UART, or LIN slave - reduces BOM count by consolidating protocol interfaces into shared hardware resources. |
| TRNG | True Random Number Generator compliant with NIST SP 800-90B - provides entropy source for cryptographic key derivation in secure boot and OTA update workflows. |
| Programmable Logic (Smart I/O) | Boolean logic on port inputs/outputs without CPU involvement - implements debounce, edge detection, or state machines in hardware for deterministic response <100 ns. |
Applications
| Body Control Module (BCM) | Automotive Touch HMI |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifters in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, analog sensor reading (e.g., ambient light, humidity), and PWM-driven LED dimming. Use Value: Integrated TCPWM blocks drive multi-channel LED drivers directly; CAN block synchronizes actuator commands with other ECUs using TTCAN timestamps. | Use Scenario: Capacitive touch panel for infotainment or climate control with water tolerance and glove operation. IC Role / Device Role / Timing Role: CAPSENSE™ CSD subsystem performs real-time electrode scanning and noise rejection while CPU handles UI rendering and CAN message forwarding. Use Value: >5:1 SNR and SmartSense auto-tuning ensure reliable touch detection under condensation, rain splash, or conductive contaminants. |
| Smart Temperature Sensor Node | Electric Power Steering (EPS) Assist Monitor |
Use Scenario: Distributed cabin temperature sensing node communicating over CAN bus to HVAC ECU. IC Role / Device Role / Timing Role: Analog front-end conditioning thermistor signals via opamp buffering and 12-bit SAR ADC sampling; CAN block transmits calibrated values. Use Value: Dual opamps operate in Deep Sleep mode to condition sensor signals before wake-up, reducing average power to <5 µA in periodic sampling mode. | Use Scenario: Monitoring motor current, torque feedback, and temperature in EPS assist electronics. IC Role / Device Role / Timing Role: Simultaneous analog acquisition (current sense, temp), PWM generation for motor gate drivers, and CAN reporting of fault conditions. Use Value: Comparator-triggered TCPWM "Kill" signal disables motor drive within 100 ns upon overcurrent detection - meeting ASIL-B functional safety timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S445 | Same PSoC™ 4100S Plus architecture but in 48-pin TQFP package; no CAN block; Grade-A (–40°C to +85°C). | Lacks TTCAN and fails AEC-Q100 Grade-S qualification - unsuitable for under-hood or high-temp cabin modules. | Select only for non-CAN, lower-temperature interior applications where TQFP mechanical fit is required. |
| SPC560B50L5 | 32-bit Power Architecture MCU; 64 KB flash; no integrated CAPSENSE™; requires external touch controller. | Higher core performance but lacks on-die analog reconfigurability and touch IP - increases BOM and layout complexity for HMI designs. | Prefer when legacy Power Architecture toolchain compatibility or higher deterministic interrupt latency (<1 µs) is mandatory. |
Compared with CY8C4147AZI-S445 and SPC560B50L5, CY8C4147LQAS245XQSA1 uniquely combines AEC-Q100 Grade-S qualification, integrated TTCAN, and production-ready CAPSENSE™ - eliminating external components and simplifying certification for automotive touch and networked control nodes.
Availability
CY8C4147LQAS245XQSA1 is available at Aetrix Electronics and suitable for body control modules, automotive touch HMIs, smart sensor nodes, and EPS assist monitors requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for CY8C4147LQAS245XQSA1 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 R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4100S Plus product line - designed specifically for automotive applications demanding AEC-Q100 compliance, integrated capacitive sensing, deterministic CAN communication, and ultra-low-power mixed-signal programmability.
FAQ
Does CY8C4147LQAS245XQSA1 support CAN FD?
No. This device implements CAN 2.0B with TTCAN capability only. It does not support CAN FD data rates or extended frame formats. For CAN FD, consider Infineon's AURIX™ TC3xx family or later-generation PSoC™ 6 devices with dual-core CAN FD controllers.
What development tools are officially supported for this MCU?
Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator (v4.4) IDEs. Both provide full peripheral configuration, CAPSENSE™ tuning GUI, CAN stack integration, and debug via KitProg3 or MiniProg3. GCC-based toolchains and Arm® Keil MDK are also validated.
Is the TRNG certified to NIST SP 800-90B?
Yes. The on-chip TRNG meets NIST SP 800-90B entropy requirements and is validated in Infineon's Common Criteria EAL5+ certification reports for PSoC™ 4100S Plus. It delivers ≥1.0 bits/byte entropy rate and passes FIPS 140-2 statistical tests.
Can GPIO pins be used simultaneously for CAPSENSE™ and analog ADC input?
No. While any GPIO can be assigned to CAPSENSE™ or analog input, they cannot serve both roles concurrently on the same pin. Dedicated analog routing paths and CSD hardware resources are mutually exclusive per pin - configuration is static per project build in PSoC™ Creator or ModusToolbox™.
CY8C4147LQAS245XQSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, TRNG, WDT
- Number of I/O:
- 54
- 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 16x10/16x12b SAR; D/A 2x7b
- 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:
CY8C4147LQAS245XQSA1 FAQ
1.How can I place an order for CY8C4147LQAS245XQSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQAS245XQSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of CY8C4147LQAS245XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQAS245XQSA1 is usually 5 days.
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Once your CY8C4147LQAS245XQSA1 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 CY8C4147LQAS245XQSA1?
For technical support, including CY8C4147LQAS245XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQAS245XQSA1 requirements.
6.How does Aetrix verify that CY8C4147LQAS245XQSA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQAS245XQSA1 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 CY8C4147LQAS245XQSA1 meets industry standards.
7.What is the process for return or replacement of CY8C4147LQAS245XQSA1?
All CY8C4147LQAS245XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQAS245XQSA1, 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 CY8C4147LQAS245XQSA1 part is unused and in its original packaging.
Return procedure for CY8C4147LQAS245XQSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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