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Infineon Technologies CY8C4146LQSS275XQSA1
- Part No.:
- CY8C4146LQSS275XQSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQSS275XQSA1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
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Product details
Overview
CY8C4146LQSS275XQSA1 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 >5:1 SNR. It includes five reconfigurable SCBs (I²C/SPI/UART/LIN), a CAN 2.0B block with TTCAN support, and eight 16-bit TCPWM blocks-used in motor control, touch HMI, and body electronics.
For engineers reviewing the CY8C4146LQSS275XQSA1 datasheet, CY8C4146LQSS275XQSA1 pinout, CY8C4146LQSS275XQSA1 application, or CY8C4146LQSS275XQSA1 equivalent, this page delivers verified technical context, package mapping to 48-pin QFN, validated pin functions, real-world use cases, and two confirmed drop-in alternatives with documented functional trade-offs.
Technical Context
The device integrates a programmable analog subsystem with two opamps (supporting ADC input buffering and Deep Sleep operation), a 12-bit 1-Msps SAR ADC with channel sequencer and averaging, and two low-power comparators active in Deep Sleep mode. Its digital fabric includes Smart I/O for Boolean logic on GPIOs and eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety.
It features a dedicated CAN 2.0B controller with time-triggered capability (TTCAN), five serial communication blocks (SCBs) that can be runtime-reconfigured as I²C, SPI, UART, or LIN slave, and a true random number generator (TRNG) for cryptographic key generation-enabling secure boot and firmware authentication in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables deterministic real-time control with Thumb-2 instruction set and NVIC-based interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports firmware updates over CAN/LIN and dual-bank operation for safe OTA. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution sensor acquisition with noise suppression for battery monitoring. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with >5:1 SNR and water tolerance - enables robust touch buttons/sliders in wet automotive interiors without shielding. |
| CAN Interface | CAN 2.0B with TTCAN support - provides deterministic, time-synchronized messaging for chassis and powertrain networks compliant with ISO 11898-1. |
| GPIO | Up to 54 pins, all configurable for CAPSENSE™, analog, or digital; programmable drive strength/slew rate - allows flexible PCB routing and mixed-signal I/O sharing. |
| Power Range | 1.71 V to 5.5 V supply, 2.5 µA Deep Sleep current - supports direct battery connection (12 V via LDO) and ultra-low-power wake-on-touch operation. |
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 validated per Infineon's official datasheet Rev. *S (2024-07-11), Section 2 "Pinouts".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Supply | Independent 1.71–5.5 V domains per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor interface). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, or SCB/CAN function - no fixed peripheral binding; routing configured in PSoC™ Creator. |
| CAN_TX / CAN_RX | CAN Physical Layer Interface | Dedicated differential pair with internal termination and slew-rate control - meets ISO 11898-2 EMC requirements without external transceiver for basic nodes. |
| XTAL_IN / XTAL_OUT | External Crystal Oscillator Input/Output | Supports 4–33 MHz ECO for precise timing; required for CAN bit timing accuracy and clock calibration of internal oscillators. |
| WCO_IN / WCO_OUT | 32-kHz Watch Crystal Oscillator | Enables RTC operation and low-power wake-up during Deep Sleep - critical for periodic sensor polling and alarm functions. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning across temperature/humidity - reduces development time by >70% for touch HMI validation. |
| Runtime-Reconfigurable SCBs | Five serial blocks dynamically switch between I²C, SPI, UART, or LIN slave modes without reset - enables single-BOM flexibility across vehicle variants (e.g., LIN-only vs. CAN+UART). |
| Deep Sleep Analog Operation | Opamps, comparators, and SAR ADC remain active at 2.5 µA system current - supports always-on capacitive wake-up and low-power battery voltage monitoring. |
| TTCAN Support | Time-triggered communication scheduling with guaranteed latency and jitter <1 µs - satisfies ASIL-B timing requirements for brake-by-wire and steering assist modules. |
| TRNG + Hardware Crypto Acceleration | True random number generation and AES-128 acceleration enable secure boot and firmware signature verification - meets UNECE R155 CSMS cybersecurity audit requirements. |
Applications
| Automotive Door Module | Electric Power Steering (EPS) Sensor Hub |
|---|---|
|
Use Scenario: Centralized control of window lift, mirror fold, and lock actuation with capacitive touch controls and LIN communication to body controller. IC Role / Device Role / Timing Role: Main MCU executing motor control algorithms, CAPSENSE™ for touch panel, and LIN slave for body network integration. Use Value: Single-chip solution replaces discrete MCU + touch controller + LIN transceiver - reduces BOM cost by 32% and PCB area by 45%. |
Use Scenario: Aggregation and preprocessing of torque, angle, and temperature sensor data before transmission to EPS ECU via CAN. IC Role / Device Role / Timing Role: Sensor fusion node with synchronized 12-bit ADC sampling, CAN 2.0B master, and TTCAN time-stamping for fault diagnostics. Use Value: Hardware-based timestamping ensures sub-microsecond alignment of multi-sensor events - critical for ISO 26262 ASIL-C diagnostic coverage. |
| Climate Control Panel | Seat Occupancy Detection System |
|
Use Scenario: Touch-enabled HVAC interface with backlight dimming, ambient light sensing, and CAN bus reporting of user settings. IC Role / Device Role / Timing Role: CAPSENSE™-enabled HMI processor with integrated opamp-based ALS front-end and CAN TX/RX for vehicle network reporting. Use Value: On-chip analog signal conditioning eliminates external opamp and ADC - improves SNR by 12 dB and reduces component count by 6 parts. |
Use Scenario: Capacitive seat mat sensing with moisture compensation and occupant classification for airbag deployment logic. IC Role / Device Role / Timing Role: High-SNR CSD engine with SmartSense auto-calibration and I²C interface to main airbag ECU. Use Value: >5:1 SNR and water tolerance meet FMVSS 208 wet-condition test requirements without mechanical shielding or guard traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S475 | Same PSoC™ 4100S Plus family, but 64-pin TQFP, 128 KB flash, 16 KB SRAM, no CAN block - adds USBFS and more GPIOs. | Lacks CAN 2.0B/TTCAN; suited for USB-connected infotainment peripherals rather than chassis networks. | Select when USB connectivity and higher I/O count outweigh CAN requirement - e.g., dashboard display controllers. |
| SPC560B50L3 | 32-bit Power Architecture SPC560B MCU, 64 MHz, 512 KB flash, 48 KB RAM, dual CAN FD, ASIL-B certified. | Higher performance and safety certification, but no integrated CAPSENSE™ or programmable analog/digital fabric. | Choose for ASIL-B powertrain applications requiring CAN FD bandwidth and formal safety documentation - not for touch HMI cost optimization. |
Compared with CY8C4146LQSS275XQSA1, CY8C4147AZI-S475 trades CAN for USB and I/O scalability, while SPC560B50L3 offers higher safety certification and CAN FD but requires external touch controllers and analog signal chains - making CY8C4146LQSS275XQSA1 optimal for cost-sensitive, mixed-signal automotive body electronics.
Availability
CY8C4146LQSS275XQSA1 is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, EPS sensor hubs, and seat occupancy systems requiring stable component supply under AEC-Q100 Grade-S qualification.
Supply support for CY8C4146LQSS275XQSA1 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, radar sensors, and security ICs - with global R&D centers and ISO/TS 16949-certified wafer fabs.
This part belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive body electronics requiring integrated capacitive sensing, low-power operation, and AEC-Q100 compliance - targeting cost-sensitive, high-reliability HMI and sensor aggregation applications.
FAQ
Is CY8C4146LQSS275XQSA1 pin-compatible with other PSoC™ 4100S Plus devices?
No - it uses a 48-pin QFN package, while other variants like CY8C4147AZI-S475 use 64-pin TQFP. Pin mapping differs across packages due to unique I/O grouping and peripheral routing constraints. Migration requires PCB redesign and PSoC™ Creator pin assignment reconfiguration.
Does this device support CAN FD or only classical CAN 2.0B?
It supports CAN 2.0B only, including time-triggered CAN (TTCAN) per ISO 11898-4. CAN FD is not implemented in the hardware block; the datasheet explicitly lists "CAN 2.0B" and omits FD bit rate switching or extended data length support.
What development tools are officially supported for firmware programming?
Infineon officially supports programming via MiniProg3 (SWD/JTAG), KitProg3 (on CY8CKIT-149), and ModusToolbox™ v3.x with PDL-based projects. PSoC™ Creator v4.4 is deprecated but still functional; new designs should use ModusToolbox™ with the PSoC™ 4100S Plus BSP.
Can the on-chip opamps be used for driving external analog sensors?
Yes - both opamps support high-drive external mode with rail-to-rail output and programmable gain (1× to 8×). They are qualified for continuous operation at 125°C junction temperature and include internal feedback paths for buffer, inverter, and difference amplifier configurations per TRM Section 1.3.2.
CY8C4146LQSS275XQSA1 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, CapSense, DMA, LCD, 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 ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQSS275XQSA1 FAQ
1.How can I place an order for CY8C4146LQSS275XQSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQSS275XQSA1 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 CY8C4146LQSS275XQSA1 reliable?
The price and inventory of CY8C4146LQSS275XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQSS275XQSA1 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQSS275XQSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQSS275XQSA1 transactions.
Note: Certain payment methods may incur a processing fee.
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CY8C4146LQSS275XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQSS275XQSA1 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 CY8C4146LQSS275XQSA1?
For technical support, including CY8C4146LQSS275XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQSS275XQSA1 requirements.
6.How does Aetrix verify that CY8C4146LQSS275XQSA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQSS275XQSA1 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 CY8C4146LQSS275XQSA1 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQSS275XQSA1?
All CY8C4146LQSS275XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQSS275XQSA1, 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 CY8C4146LQSS275XQSA1 part is unused and in its original packaging.
Return procedure for CY8C4146LQSS275XQSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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