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Infineon Technologies CY8C4146LQSS455XQSA1
- Part No.:
- CY8C4146LQSS455XQSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQSS455XQSA1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,653
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Product details
Overview
CY8C4146LQSS455XQSA1 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 (SCB), CAN 2.0B with TTCAN support, and eight 16-bit TCPWM blocks - deployed in automotive body electronics for touch-enabled control panels.
For engineers reviewing the CY8C4146LQSS455XQSA1 datasheet, CY8C4146LQSS455XQSA1 pinout, CY8C4146LQSS455XQSA1 application, or CY8C4146LQSS455XQSA1 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current ≤2.5 µA, and QFN-48 package compatibility with industrial PCB assembly processes.
Technical Context
This device implements a mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) coexist with digital logic resources including Smart I/O for Boolean port-level operations and eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals. All analog peripherals remain functional in Deep Sleep mode.
The clock system integrates four independent sources: 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO - enabling precise time-triggered CAN (TTCAN) operation and deterministic real-time response. The CAN block supports bit rates up to 1 Mbps and conforms to ISO 11898-1:2015.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution of automotive body control firmware with <100 ns interrupt latency. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports dual-bank firmware updates and runtime parameter storage without external memory. |
| CAPSENSE™ Performance | SNR >5:1, water-tolerant CSD architecture - delivers reliable touch detection under condensation or wet-finger conditions in door modules. |
| CAN Interface | CAN 2.0B + TTCAN compliant - provides synchronized message transmission for distributed vehicle subsystems with jitter <100 ns. |
| Power Modes | Deep Sleep current ≤2.5 µA with active analog - enables always-on capacitive wake-up in keyless entry systems with battery life >10 years. |
| GPIO Count | Up to 48 usable pins in QFN-48 package - all support programmable drive strength, slew rate, and CAPSENSE™/analog/digital reconfiguration per pin. |
| ADC Resolution | 12-bit SAR ADC, 1 Msps, differential input - captures high-fidelity sensor data (e.g., cabin temperature, humidity) with <±1 LSB INL. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply rails | Independent 1.71–5.5 V domains per bank - enable mixed-voltage interfacing (e.g., 3.3 V MCU core + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[7] | Programmable GPIOs | Each pin configurable as CAPSENSE™ electrode, analog input, UART TX/RX, CAN TX/RX, or PWM output - no fixed-function pin lock-in. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for precise clock generation - required for CAN bit timing accuracy and TTCAN synchronization. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Internal CAN PHY with bus fault protection - connects directly to external CAN transceiver (e.g., TJA1042) without level-shifting. |
| WAKEUP | Deep Sleep wake source | Edge-sensitive input that exits Deep Sleep in <2 µs - used for capacitive wake events or external interrupt triggers. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning across temperature/humidity - reduces firmware development time by ~70% for touch UIs. |
| Reconfigurable SCBs | Five serial blocks each dynamically switchable between I²C/SPI/UART/LIN slave - enables single-BOM flexibility across multiple vehicle variants (e.g., base vs. premium trim). |
| Deep Sleep Analog Operation | Opamps, comparators, and IDACs remain active at ≤2.5 µA system current - supports always-on proximity sensing in infotainment bezels. |
| TTCAN Support | Time-triggered communication scheduling with guaranteed slot allocation - meets ASAM MCD-2 MC timing requirements for ECU synchronization. |
| True Random Number Generator | On-die TRNG compliant with NIST SP 800-90B - provides entropy source for secure boot key derivation and TLS session keys in OTA update stacks. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on vehicle door trim control window lift, mirror fold, and lock functions. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scanning, CAN message framing, and PWM motor control for window actuator. Use Value: Single-chip integration eliminates discrete touch controller and CAN transceiver - reduces BOM count by 4 components and PCB area by 28 mm². | Use Scenario: Touch-responsive HVAC interface with ambient light-adaptive backlighting and temperature/humidity sensor fusion. IC Role / Device Role / Timing Role: Sensor hub aggregating I²C sensor data, driving segmented LCD, and communicating via CAN to body control module. Use Value: On-die 12-bit SAR ADC and programmable opamp gain stages eliminate external signal conditioning - improves thermal measurement accuracy to ±0.3°C. |
| Steering Wheel Controls | Seat Position Memory System |
Use Scenario: Wet-tolerant touch controls embedded in leather-wrapped steering wheel for audio, cruise, and phone functions. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with SmartSense, CAN node for vehicle network messaging, and Deep Sleep wake-on-touch. Use Value: CSD architecture with >5:1 SNR ensures reliable operation with sweat or rain - meets OEM IPX4 splash resistance requirement. | Use Scenario: Motorized seat position recall using potentiometer feedback, memory seat button inputs, and LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: Dual-role controller: LIN slave for seat switch inputs, CAN master for position broadcast and EEPROM write coordination. Use Value: Five reconfigurable SCBs allow simultaneous LIN slave + CAN master + debug UART - avoids secondary MCU in compact seat ECU housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQSS455XQSA1 | Same die, 64-pin QFN package (7×7 mm), +14 additional GPIOs and 2 extra SCBs | Suitable for designs requiring higher I/O count and dual CAN channels | Select when board layout accommodates larger footprint and need for redundant CAN or expanded sensor interfaces. |
| SPC560B50L5 | 32-bit Power Architecture e200z0 core, 64 KB flash, no integrated CAPSENSE™, requires external touch controller | Targeted at powertrain-adjacent body controllers needing ASIL-B compliance but no touch UI | Choose only if CAPSENSE™ is unnecessary and legacy Power Architecture toolchain is mandated. |
Compared with CY8C4147LQSS455XQSA1, this part offers identical peripheral functionality in a space-constrained 48-pin QFN; versus SPC560B50L5, it delivers full touch integration and lower Deep Sleep current but lacks ASIL-B certification - making it optimal for non-safety-critical interior HMI nodes.
Availability
CY8C4146LQSS455XQSA1 is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, steering wheel controls, and seat position memory systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146LQSS455XQSA1 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 centers and wafer fabs in Dresden and Villach.
This part belongs to the PSoC™ 4100S Plus product line - designed specifically for cost-sensitive, AEC-Q100-compliant automotive human-machine interface (HMI) applications requiring integrated capacitive sensing, CAN connectivity, and ultra-low-power operation.
FAQ
Is CY8C4146LQSS455XQSA1 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-in-time (FIT) rate of 122 FIT, and PPAP-ready manufacturing traceability. It meets automotive EMC standards per ISO 11452 and ISO 7637-2.
Does this device support CAN FD?
No. CY8C4146LQSS455XQSA1 implements CAN 2.0B with TTCAN extensions only - maximum bit rate is 1 Mbps, and it does not support CAN FD frame format, arbitration bit rate switching, or flexible data field length beyond 8 bytes.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD sensing remains fully functional in Deep Sleep mode with total system current ≤2.5 µA. Hardware SmartSense auto-tuning continues to run, enabling wake-on-touch with sub-2 µs latency and no firmware intervention.
What development tools are supported?
Infineon's ModusToolbox™ (v3.1+) and legacy PSoC™ Creator IDE both support this device. Hardware debugging uses KitProg3 or MiniProg3; CAPSENSE™ tuning is performed via CapSense Tuner GUI; CAN traffic analysis is enabled through ModusToolbox™ CAN Analyzer plug-in.
CY8C4146LQSS455XQSA1 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:
CY8C4146LQSS455XQSA1 FAQ
1.How can I place an order for CY8C4146LQSS455XQSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQSS455XQSA1 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 CY8C4146LQSS455XQSA1 reliable?
The price and inventory of CY8C4146LQSS455XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQSS455XQSA1 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQSS455XQSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQSS455XQSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQSS455XQSA1?
CY8C4146LQSS455XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQSS455XQSA1 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 CY8C4146LQSS455XQSA1?
For technical support, including CY8C4146LQSS455XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQSS455XQSA1 requirements.
6.How does Aetrix verify that CY8C4146LQSS455XQSA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQSS455XQSA1 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 CY8C4146LQSS455XQSA1 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQSS455XQSA1?
All CY8C4146LQSS455XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQSS455XQSA1, 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 CY8C4146LQSS455XQSA1 part is unused and in its original packaging.
Return procedure for CY8C4146LQSS455XQSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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