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Infineon Technologies CY8C4146LQAS245XQSA1
- Part No.:
- CY8C4146LQAS245XQSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQAS245XQSA1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,425
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Product details
Overview
CY8C4146LQAS245XQSA1 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 interfaces and real-time communication.
For engineers reviewing the CY8C4146LQAS245XQSA1 datasheet, CY8C4146LQAS245XQSA1 pinout, CY8C4146LQAS245XQSA1 application, or CY8C4146LQAS245XQSA1 equivalent, key selection criteria 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 mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit SAR ADC, dual IDACs) and digital logic (TCPWM, SCBs, Smart I/O) are routed via automatic interconnect fabric. Its clock system integrates ECO (4–33 MHz), WCO (32 kHz), PLL, and ±2% IMO for flexible timing across functional domains.
The CAN block supports TTCAN with hardware timestamping and synchronization, while CAPSENSE™ uses sigma-delta (CSD) modulation achieving >5:1 SNR and water-tolerant operation-enabling reliable touch in harsh automotive environments without external shielding or calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution for safety-critical automotive tasks |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports firmware updates and runtime data buffering in ECUs |
| Operating Voltage | 1.71 V to 5.5 V - accommodates wide automotive battery voltage transients without external regulators |
| Deep Sleep Current | 2.5 µA with active analog - sustains capacitive sensing wake-up capability during vehicle sleep mode |
| CAN Interface | CAN 2.0B with TTCAN support - provides synchronized message scheduling for distributed chassis control |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under condensation, glove use, or EMI noise |
| GPIO Count | 54 programmable pins - allows single-chip integration of touch, analog sensing, PWM motor control, and LIN/CAN comms |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, automotive-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply rails | Independent 1.71–5.5 V domains per port group enable mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V sensor I/O) |
| P0.0–P9.7 | Programmable GPIO | All pins support CAPSENSE™, analog input/output, digital logic, and configurable drive strength/slew rate |
| CAN_TX / CAN_RX | Differential CAN bus interface | Dedicated hardware pins with internal termination and TTCAN timestamp alignment for deterministic frame timing |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Supports 4–33 MHz ECO for high-accuracy clock source; required for CAN bit timing stability |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC and low-power wake-up timer independent of main clock domain |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and compensates for environmental drift |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C/SPI/UART/LIN slave modes at runtime-reducing BOM count and PCB footprint |
| TCPWM kill signal | Comparator-triggered hardware shutdown of PWM outputs within <100 ns-critical for motor overcurrent protection in EPS or HVAC actuators |
| True RNG (TRNG) | On-chip entropy source compliant with NIST SP 800-90B for secure key generation in automotive cybersecurity modules |
| Capacitive sigma-delta (CSD) | Modulation-based sensing architecture immune to common-mode noise and enabling >100:1 water tolerance ratio |
Applications
| Body Control Module (BCM) | Automotive Touch HMI |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifts in modern vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time control logic, managing LIN slaves, and monitoring CAN bus diagnostics. Use Value: Integrated CAN + TTCAN ensures synchronized actuator commands; 54 GPIOs eliminate need for external I/O expanders. | Use Scenario: Capacitive touch buttons and sliders on center console, steering wheel, or climate panel exposed to moisture and temperature extremes. IC Role / Device Role / Timing Role: CAPSENSE™ controller with hardware SmartSense tuning and CSD modulation for noise-immune sensing. Use Value: >5:1 SNR and water tolerance allow direct glass overlay design without shield layers or recalibration routines. |
| Electric Power Steering (EPS) | Smart Sensor Node |
Use Scenario: Motor control and torque feedback processing in column-assist EPS systems with functional safety requirements. IC Role / Device Role / Timing Role: Real-time controller running motor FOC algorithms, sampling analog torque sensors, and driving gate drivers via PWM. Use Value: TCPWM kill signal triggers sub-100 ns PWM disable on overcurrent detection-meeting ASIL-B fault response timing. | Use Scenario: Distributed cabin air quality or occupancy sensing node communicating over CAN bus with gateway ECU. IC Role / Device Role / Timing Role: Low-power sensor aggregator with SAR ADC, opamp signal conditioning, and CAN 2.0B interface. Use Value: 2.5 µA Deep Sleep with active analog enables periodic CO₂ sensor wake-up without external interrupt controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, higher performance (112 MHz), larger memory (512 KB flash), but no integrated CAPSENSE™ | Preferred for complex motor control or OTA update stacks; requires external touch controller for HMI | Select when floating-point math or ASIL-D software partitioning is required; avoid if CAPSENSE™ integration reduces BOM cost |
| Renesas RL78/F14 | 16-bit RL78 core, lower power (0.6 µA Deep Sleep), no CAN FD or TTCAN, limited analog resources | Suitable for basic LIN-based body electronics; lacks sigma-delta sensing and hardware TTCAN sync | Select for cost-sensitive, non-touch applications where CAN is not required; avoid for time-triggered networked systems |
Compared with S32K144 and RL78/F14, CY8C4146LQAS245XQSA1 uniquely combines automotive CAN+TTCAN, hardware CAPSENSE™ with SmartSense, and Deep Sleep analog retention-making it optimal for integrated touch-and-control nodes where silicon consolidation reduces system-level complexity and qualification effort.
Availability
CY8C4146LQAS245XQSA1 is available at Aetrix Electronics and suitable for body control modules, automotive touch HMIs, electric power steering subsystems, and smart sensor nodes requiring stable component supply across automotive production lifecycles.
Supply support for CY8C4146LQAS245XQSA1 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 and manufacturing infrastructure serving Tier-1 automotive suppliers.
CY8C41xx belongs to the PSoC™ 4100S Plus product line, designed specifically for AEC-Q100-compliant automotive applications demanding integrated capacitive sensing, deterministic CAN communication, and ultra-low-power operation in extended temperature ranges.
FAQ
What is the maximum operating temperature grade for CY8C4146LQAS245XQSA1?
This part is qualified to AEC-Q100 Grade-S, with guaranteed operation from –40°C to +105°C ambient temperature. It is not rated for Grade-E (+125°C) operation. The device's thermal design supports sustained operation at 105°C junction temperature under specified power dissipation and PCB copper area conditions per the thermal characteristics section of the datasheet.
Does CY8C4146LQAS245XQSA1 support CAN FD or only classical CAN 2.0B?
CY8C4146LQAS245XQSA1 implements a classical CAN 2.0B controller with TTCAN extensions, but does not support CAN FD data rates or frame formats. Its CAN block operates at up to 1 Mbps with hardware timestamping, synchronization registers, and deterministic scheduling-sufficient for most body and chassis networks but not for high-bandwidth ADAS backbones.
Can all 54 GPIO pins be used simultaneously for CAPSENSE™ sensing?
No-while all 54 pins are CAPSENSE™-capable, the CSD block supports up to 32 simultaneous sensing channels (electrodes) due to hardware resource limits in the sigma-delta modulator and sequencer. Additional electrodes require time-multiplexed scanning or external multiplexing, which increases scan time and reduces effective SNR.
Is ModusToolbox™ required to develop firmware for this device?
No-ModusToolbox™ is optional and recommended for new projects, but legacy PSoC™ Creator IDE (v4.4 or later) fully supports CY8C4146LQAS245XQSA1 with complete component libraries, CAPSENSE™ tuner, and debug integration. Both toolchains generate identical binary output compatible with MiniProg3 and KitProg2 programmers.
CY8C4146LQAS245XQSA1 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, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b, 12x12b 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:
CY8C4146LQAS245XQSA1 FAQ
1.How can I place an order for CY8C4146LQAS245XQSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQAS245XQSA1 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 CY8C4146LQAS245XQSA1 reliable?
The price and inventory of CY8C4146LQAS245XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQAS245XQSA1 is usually 5 days.
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4.How is shipping managed for CY8C4146LQAS245XQSA1?
CY8C4146LQAS245XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQAS245XQSA1 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 CY8C4146LQAS245XQSA1?
For technical support, including CY8C4146LQAS245XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQAS245XQSA1 requirements.
6.How does Aetrix verify that CY8C4146LQAS245XQSA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQAS245XQSA1 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 CY8C4146LQAS245XQSA1 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQAS245XQSA1?
All CY8C4146LQAS245XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQAS245XQSA1, 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 CY8C4146LQAS245XQSA1 part is unused and in its original packaging.
Return procedure for CY8C4146LQAS245XQSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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