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Infineon Technologies CY8C4146LQA-S453T
- Part No.:
- CY8C4146LQA-S453T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S453T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,859
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Product details
Overview
CY8C4146LQA-S453T 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 a CAN 2.0B block with TTCAN support, five reconfigurable SCBs (I²C/SPI/UART/LIN), and eight 16-bit TCPWM blocks-used in automotive body control modules requiring robust touch interfaces and real-time communication.
For engineers reviewing the CY8C4146LQA-S453T datasheet, CY8C4146LQA-S453T pinout, CY8C4146LQA-S453T application, or CY8C4146LQA-S453T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAN 2.0B with time-triggered capability, Deep Sleep current of 2.5 µA, CAPSENSE™ SmartSense auto-tuning, and QFN-48 package compatibility with Arduino-compatible prototyping kits.
Technical Context
This device implements a mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, dual IDACs) coexist with digital logic resources including Smart I/O for Boolean port-level operations and TCPWM blocks supporting quadrature decoding and comparator-triggered kill signals. Its clock system integrates ECO (4–33 MHz), WCO (32 kHz), IMO (±2%), and PLL for deterministic 48-MHz core timing.
The CAN block supports full CAN 2.0B protocol with TTCAN extensions for synchronized message scheduling in distributed automotive networks, while CAPSENSE™ uses sigma-delta (CSD) modulation with hardware-accelerated signal averaging and water-tolerant electrode scanning-enabling reliable touch control in humid cabin environments without external shielding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables deterministic real-time task execution with Thumb-2 instruction set and NVIC-based interrupt handling. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports firmware updates over CAN and retains critical variables during low-power sleep modes. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interface with 3.3 V and 5 V automotive subsystems without level-shifting circuitry. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered message transmission windows for safety-critical actuator coordination in chassis control units. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures stable button/slider detection under condensation, glove use, or EMI-rich engine-bay proximity. |
| Deep Sleep Current | 2.5 µA digital system current - sustains wake-on-touch or CAN bus activity monitoring while meeting automotive quiescent power budgets. |
| GPIO Count | Up to 54 programmable pins in QFN-48 package - all support CAPSENSE™, analog input, or digital drive with configurable slew rate and drive strength. |
Pinout & Package
CY8C4146LQA-S453T is housed in a 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with wettable flank terminations for automated optical inspection. Pin functions are fully reconfigurable via firmware; no fixed peripheral pin assignments exist.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor inputs). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™ electrode, analog input, UART TX/RX, or PWM output-mapped dynamically at runtime. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer I/O | Hardwired to internal CAN controller; require external 120 Ω termination and high-speed transceiver (e.g., TJA1042). |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for precise timing; required for CAN bit-rate accuracy and USB-free bootloader synchronization. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC operation and low-power wake-up intervals independent of main clock domain. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual parameter tuning across temperature/humidity variations and PCB stackup changes. |
| Reconfigurable SCBs | Five serial blocks each support I²C master/slave, SPI master/slave, UART, or LIN slave - enabling single-firmware reuse across multiple vehicle ECUs with differing bus topologies. |
| Deep Sleep analog retention | Opamps, comparators, and SAR ADC remain operational in Deep Sleep mode - allowing continuous sensor monitoring without waking the CPU. |
| TTCAN compliance | Time-triggered CAN scheduling ensures deterministic message latency and fault-containment boundaries for ASIL-B systems. |
| True Random Number Generator | TRNG meets NIST SP 800-90B entropy requirements - used for secure key generation in firmware update authentication and secure boot. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive window lift, mirror fold/unfold, and lock/unlock controls in door trim panels exposed to condensation and mechanical vibration. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scan, CAN message framing, and PWM motor driver control with sub-100 µs response latency. Use Value: Eliminates mechanical switches and reduces BOM cost by integrating analog sensing, digital logic, and CAN PHY interface into one die. | Use Scenario: HVAC interface with slider-based temperature adjustment and rotary fan speed control in high-humidity cabin environments. IC Role / Device Role / Timing Role: CAPSENSE™ CSD frontend with hardware averaging, coupled to CAN Tx/Rx for climate ECU communication and TCPWM for blower motor control. Use Value: Maintains >5:1 SNR under sweat/glove conditions and supports wake-on-touch from Deep Sleep with 2.5 µA quiescent current. |
| Steering Wheel Controls | Seat Position Memory System |
Use Scenario: Multi-function buttons and capacitive sliders embedded in leather-wrapped steering wheels subject to ESD and wide thermal cycling. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ acquisition engine with SmartSense tuning, CAN message aggregation, and LIN slave fallback for redundancy. Use Value: Achieves Class A EMC immunity per ISO 11452-2 and supports ASIL-B functional safety through TTCAN time-slot isolation. | Use Scenario: Non-volatile storage and recall of driver seat position via touch-initiated memory presets linked to vehicle key fob ID. IC Role / Device Role / Timing Role: Flash-resident profile manager with TRNG-secured EEPROM emulation, CAN-based key fob authentication, and GPIO-driven motor actuation sequencing. Use Value: Enables secure, tamper-resistant seat memory using on-chip flash wear-leveling and cryptographic key derivation from TRNG output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQA-S463 | Same PSoC™ 4100S Plus family; 256 KB flash, 32 KB SRAM, identical peripherals and pinout - higher memory variant. | Required when firmware image size exceeds 128 KB or when dual-bank OTA updates demand extra flash partitioning. | Select for future-proofing firmware scalability without changing board layout or driver software. |
| SPC560B50L5 | 32-bit Power Architecture e200z0h core, 512 KB flash, 48 KB RAM, CAN FD, no integrated CAPSENSE™ - requires external touch controller. | Suitable for powertrain or chassis applications needing CAN FD bandwidth but lacking touch interface requirements. | Choose only when CAN FD throughput >1 Mbps is mandatory and touch sensing is handled externally. |
Compared with CY8C4146LQA-S453T, CY8C4147LQA-S463 offers memory headroom for complex middleware stacks, while SPC560B50L5 trades integrated capacitive sensing for CAN FD and higher compute throughput-making it unsuitable for touch-centric body electronics but viable for engine management where flash density and FD bandwidth dominate.
Availability
CY8C4146LQA-S453T 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, AEC-Q100 Grade-S qualification, and long-term lifecycle support.
Supply support for CY8C4146LQA-S453T 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 manufacturing and R&D centers across Europe, Asia, and the Americas.
The PSoC™ 4100S Plus product line targets automotive body electronics requiring integrated capacitive sensing, CAN communication, and low-power operation - designed specifically for touch-enabled ECUs in harsh environmental conditions.
FAQ
Is CY8C4146LQA-S453T qualified for automotive applications?
Yes. It is AEC-Q100 qualified to Grade-S (–40°C to +105°C), with full qualification test reports available from Infineon. This includes stress testing for temperature cycling, humidity bias, and ESD per JESD22 standards, making it suitable for under-hood and cabin-mounted automotive ECUs.
Does this part support CAN FD?
No. CY8C4146LQA-S453T integrates a classical CAN 2.0B controller with TTCAN extensions but does not support CAN FD data rates or flexible data-length frames. For CAN FD, consider Infineon's AURIX™ TC3xx series or ST's SPC58x.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. The CAPSENSE™ CSD block, SAR ADC, and opamps retain functionality in Deep Sleep mode with 2.5 µA total system current. Hardware-accelerated scanning and SmartSense auto-calibration continue without CPU intervention, enabling wake-on-touch with sub-10 ms latency.
What development tools are supported?
Infineon officially supports ModusToolbox™ (Eclipse-based IDE with PDL and CAPSENSE™ middleware) and legacy PSoC™ Creator. Debugging uses KitProg3 or MiniProg3 programmers. Arduino-compatible shields work with CY8CKIT-041-41XX, and BSPs are provided for all major Infineon evaluation kits.
CY8C4146LQA-S453T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 34
- 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, 16x12b SAR, Sigma-Delta; D/A 1x12b
- 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:
CY8C4146LQA-S453T FAQ
1.How can I place an order for CY8C4146LQA-S453T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-S453T 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 CY8C4146LQA-S453T reliable?
The price and inventory of CY8C4146LQA-S453T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S453T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S453T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S453T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S453T?
CY8C4146LQA-S453T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-S453T 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 CY8C4146LQA-S453T?
For technical support, including CY8C4146LQA-S453T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S453T requirements.
6.How does Aetrix verify that CY8C4146LQA-S453T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-S453T 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 CY8C4146LQA-S453T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S453T?
All CY8C4146LQA-S453T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-S453T, 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 CY8C4146LQA-S453T part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S453T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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