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Infineon Technologies CY8C4146LQAS275XQSA1
- Part No.:
- CY8C4146LQAS275XQSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQAS275XQSA1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,870
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Product details
Overview
CY8C4146LQAS275XQSA1 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, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCB), CAN 2.0B with TTCAN support, and eight 16-bit TCPWM modules - deployed in automotive body control modules requiring robust touch interfaces and real-time motor timing.
For engineers reviewing the CY8C4146LQAS275XQSA1 datasheet, CY8C4146LQAS275XQSA1 pinout, CY8C4146LQAS275XQSA1 application, or CY8C4146LQAS275XQSA1 equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR >5:1, Deep Sleep current of 2.5 µA, CAN 2.0B + TTCAN compliance, and 54 GPIO with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where analog and digital resources are routed via a programmable interconnect matrix. Its CAPSENSE™ subsystem uses capacitance-sigma-delta (CSD) modulation with hardware-accelerated SmartSense tuning, enabling water-tolerant touch detection without firmware intervention.
The CAN block supports time-triggered communication (TTCAN) with dedicated message RAM and error counters, while the TCPWM blocks provide comparator-triggered kill signals for motor control safety. All analog peripherals - including two opamps, 12-bit SAR ADC (1-Msps), and dual IDACs - remain functional in Deep Sleep mode at 2.5 µA system current.
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 interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader storage and multi-tasking firmware with low-latency data buffering. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended - delivers high-resolution sensor acquisition for battery monitoring or temperature sensing. |
| CAPSENSE™ | Capacitance-sigma-delta (CSD) with SNR >5:1 and SmartSense auto-tuning - eliminates manual calibration for automotive door handle or climate panel touch interfaces. |
| CAN Interface | CAN 2.0B with TTCAN support - provides deterministic, time-synchronized messaging for chassis domain controllers and gateway applications. |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and cabin-mounted ECUs per AEC-Q100 Rev G. |
| Supply Range | 1.71 V to 5.5 V - allows direct connection to 3.3 V or 5 V automotive power rails without external regulators. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| 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 logic with 5 V sensor outputs). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | 54 total pins; each supports CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - configured at runtime via PDL or ModusToolbox™. |
| CAN_TX / CAN_RX | CAN Physical Layer Interface | Dedicated differential pair with internal termination - connects directly to ISO 11898-2 transceiver without external resistors. |
| 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-critical protocols. |
| WCO_IN / WCO_OUT | 32-kHz Watch Crystal Oscillator | Enables RTC operation and wake-from-Deep-Sleep timing - critical for periodic sensor polling in low-power vehicle entry systems. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration - reduces firmware development time by eliminating manual threshold tuning across temperature and humidity gradients. |
| Deep Sleep Mode (2.5 µA) | Full analog retention with opamps, comparators, and IDACs active - enables always-on capacitive wake-up in keyless entry systems without external supervisors. |
| Reconfigurable SCBs (x5) | Runtime-switchable I²C/SPI/UART/LIN slave - allows single-pin reuse across diagnostics (UART), sensor comms (I²C), and LIN body networks without PCB redesign. |
| TTCAN Support | Time-triggered scheduling with guaranteed latency - satisfies ASAM MCD-2 MC and AUTOSAR COM stack timing requirements for distributed ECU synchronization. |
| Programmable GPIO Drive | Configurable slew rate, pull-up/down, and 20-mA drive strength per pin - supports direct LED driving, relay control, or 5 V logic interfacing without discrete buffers. |
Applications
| Automotive Door Handle Touch Interface | Body Control Module (BCM) Motor Timing |
|---|---|
|
Use Scenario: Capacitive touch detection on metal or coated plastic door handles, operating across –40°C to +105°C with water/dirt tolerance. IC Role / Device Role / Timing Role: Primary CAPSENSE™ controller with hardware SmartSense tuning and Deep Sleep wake capability. Use Value: Eliminates mechanical switches and external touch ICs; achieves >5:1 SNR under rain conditions using on-die CSD modulation. |
Use Scenario: Precise PWM control of window lift motors and seat adjusters with fail-safe kill signal response. IC Role / Device Role / Timing Role: Real-time motor controller with TCPWM blocks generating center-aligned PWM and comparator-triggered hardware kill. Use Value: Sub-microsecond kill latency meets ISO 26262 ASIL-B requirements for motor stall protection without software intervention. |
| Vehicle Gateway CAN Node | In-Cabin Climate Panel Controller |
|
Use Scenario: Low-latency bridging between LIN-based HVAC actuators and CAN-based powertrain network. IC Role / Device Role / Timing Role: CAN 2.0B + TTCAN node with message RAM and hardware filtering for gateway arbitration. Use Value: Supports synchronized diagnostic session timing across domains using TTCAN time stamps, reducing bus load by 32% vs. event-triggered polling. |
Use Scenario: Touch-enabled climate control panel with backlight dimming, temperature display, and fan speed feedback. IC Role / Device Role / Timing Role: Integrated MCU + CAPSENSE™ + LCD segment driver - replaces three discrete ICs. Use Value: Drives up to 48 LCD segments directly from GPIOs while maintaining touch responsiveness during display updates. |
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 core but in 64-pin TQFP; higher pin count, no CAN block. | Lacks CAN interface - suitable only for non-networked touch/HVAC control where GPIO expansion is prioritized over bus connectivity. | Select when CAN is unnecessary and board layout requires through-hole or larger pitch packaging. |
| SPC560B50L3 | 32-bit Power Architecture e200z0 core, 64 MHz, 512 KB flash, AEC-Q100 Grade-1 (–40°C to +125°C), no integrated CAPSENSE™. | Requires external touch controller and separate analog front-end - increases BOM cost and PCB area for touch applications. | Select when ASIL-B functional safety certification (ISO 26262) and high-speed motor control dominate over capacitive UI integration. |
Compared with CY8C4146LQAS275XQSA1, CY8C4147AZI-S475 trades CAN for pin count and package type, while SPC560B50L3 offers higher ASIL readiness but demands external analog/touch components - making the CY8C4146LQAS275XQSA1 optimal for cost-sensitive, CAN-connected automotive touch nodes.
Availability
CY8C4146LQAS275XQSA1 is available at Aetrix Electronics and suitable for automotive body electronics, in-cabin human-machine interfaces, and CAN-connected sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146LQAS275XQSA1 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 microcontrollers, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQAS275XQSA1 belongs to the PSoC™ 4100S Plus product line, designed specifically for AEC-Q100-compliant automotive applications demanding integrated capacitive sensing, CAN connectivity, and ultra-low-power operation in harsh environments.
FAQ
Is CY8C4146LQAS275XQSA1 qualified for automotive use?
Yes. It is AEC-Q100 qualified to Grade-S (–40°C to +105°C), with full documentation including stress test reports, failure-in-time (FIT) data, and PPAP-ready manufacturing records. The qualification covers HTOL, TC, UHAST, and ESD testing per Rev G requirements.
Does this part support CAN FD?
No. CY8C4146LQAS275XQSA1 implements CAN 2.0B with TTCAN extensions only. It does not support CAN FD data rates or flexible data-length frames. For CAN FD, consider Infineon's AURIX™ TC3xx family or standalone CAN FD transceivers paired with this device.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD sensing remains fully operational in Deep Sleep mode with 2.5 µA system current. The SmartSense engine runs autonomously in hardware, allowing touch wake-up events without CPU intervention or SRAM retention loss.
What development tools are supported?
ModusToolbox™ 3.x and PSoC™ Creator 4.4 are officially supported. ModusToolbox™ provides CLI-based project creation, Peripheral Driver Library (PDL) APIs, and CAPSENSE™ Tuner GUI. PSoC™ Creator offers schematic-based design with automatic analog/digital routing and component-level configuration.
CY8C4146LQAS275XQSA1 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 ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQAS275XQSA1 FAQ
1.How can I place an order for CY8C4146LQAS275XQSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQAS275XQSA1 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 CY8C4146LQAS275XQSA1 reliable?
The price and inventory of CY8C4146LQAS275XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQAS275XQSA1 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQAS275XQSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQAS275XQSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQAS275XQSA1?
CY8C4146LQAS275XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQAS275XQSA1 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 CY8C4146LQAS275XQSA1?
For technical support, including CY8C4146LQAS275XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQAS275XQSA1 requirements.
6.How does Aetrix verify that CY8C4146LQAS275XQSA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQAS275XQSA1 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 CY8C4146LQAS275XQSA1 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQAS275XQSA1?
All CY8C4146LQAS275XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQAS275XQSA1, 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 CY8C4146LQAS275XQSA1 part is unused and in its original packaging.
Return procedure for CY8C4146LQAS275XQSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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