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Infineon Technologies CY8C4146LQA-S453
- Part No.:
- CY8C4146LQA-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S453.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,784
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Product details
Overview
CY8C4146LQA-S453 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 >5:1 SNR. It includes five reconfigurable SCBs (I²C/SPI/UART/LIN), eight TCPWM blocks, a CAN 2.0B interface with TTCAN support, and operates from 1.71 V to 5.5 V. Used in automotive body control modules requiring robust touch HMI and real-time motor timing.
For engineers reviewing the CY8C4146LQA-S453 datasheet, CY8C4146LQA-S453 pinout, CY8C4146LQA-S453 application, or CY8C4146LQA-S453 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense auto-tuning, CAN 2.0B + TTCAN compliance, Deep Sleep current of 2.5 µA, and GPIO flexibility across 54 pins 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. The 12-bit SAR ADC supports differential input, channel sequencing, and signal averaging; two opamps operate in Deep Sleep mode with ADC input buffering capability.
The CAN block supports time-triggered communication (TTCAN) with dedicated message RAM and hardware filtering, while the eight TCPWM blocks provide center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety-critical logic.
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. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports firmware updates and runtime data buffers without external memory. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct connection to 3.3 V or 5 V automotive subsystems without level-shifting. |
| Deep Sleep Current | 2.5 µA digital system current - sustains low-power wake-on-touch or CAN bus activity in battery-sensitive applications. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under moisture, EMI, or varying environmental conditions. |
| CAN Interface | CAN 2.0B with TTCAN support - provides deterministic, time-synchronized messaging for distributed automotive ECUs. |
| GPIO Count | 54 programmable pins - each configurable as CAPSENSE™, analog input, or digital I/O with programmable drive strength and slew rate. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0 | I/O power supply | Supplies 1.71–5.5 V to Port 0 pins; independent from core voltage for flexible interfacing. |
| VDDD | Digital core supply | Provides regulated 1.71–1.89 V to CPU and digital logic; requires external LDO or internal regulator configuration. |
| VREFB | ADC reference input | Accepts external reference (0.6–VDDA) or internal 1.2 V bandgap for precise SAR ADC conversions. |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential pair supporting ISO 11898-2 compliant signaling; requires external transceiver for bus termination and isolation. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™ CSD, analog input, or digital function; configurable pull-up/down, drive mode, and slew rate. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and maintains stable touch performance across temperature/humidity drift. |
| Reconfigurable SCBs | Five serial blocks dynamically assignable as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and PCB footprint. |
| TCPWM kill signal | Comparator-triggered hardware shutdown of PWM outputs within one clock cycle - meets ASIL-B functional safety requirements for motor control. |
| True RNG (TRNG) | Dedicated entropy source delivering cryptographically secure random numbers for key generation in secure boot or OTA update authentication. |
| Low-power comparators | Two ultra-low-power comparators active in Deep Sleep mode - enable wake-on-analog-threshold events without CPU intervention. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-enabled window lift, mirror fold/unfold, and lock/unlock controls in door trim panels exposed to condensation and ESD. IC Role / Device Role / Timing Role: Primary MCU managing CAPSENSE™ buttons, LIN slave communication to body controller, and PWM-driven LED backlight dimming. Use Value: >5:1 CAPSENSE™ SNR ensures operation through water film; LIN slave mode offloads protocol handling from main ECU; 2.5 µA Deep Sleep extends battery life during vehicle sleep mode. | Use Scenario: HVAC interface with slider, rotary encoder, and ambient light-adjusted display in dashboard assemblies. IC Role / Device Role / Timing Role: Touch-sensing hub with quadrature decoder for rotary inputs, 12-bit SAR ADC for thermistor readings, and SPI-driven LCD segment driver. Use Value: Integrated quadrature decoder eliminates external logic; SAR ADC channel sequencer reads multiple sensors without CPU overhead; LCD drive capability reduces external driver IC count. |
| Seat Position Memory System | Steering Wheel Touch Controls |
Use Scenario: Non-contact position sensing and memory recall for electric seat actuators using capacitive linear sliders. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ controller with SmartSense auto-calibration and CAN 2.0B node transmitting seat profile data to central gateway. Use Value: CSD-based linear slider achieves sub-millimeter resolution; TTCAN ensures synchronized profile storage across multi-axis actuator systems; AEC-Q100 Grade-S guarantees reliability at +105°C cabin temperatures. | Use Scenario: Multi-function touch ring and button cluster on steering wheel for audio, cruise, and voice control under vibration and glove use. IC Role / Device Role / Timing Role: Real-time CAPSENSE™ processing unit with noise immunity algorithms, CAN TX/RX for vehicle network integration, and TRNG for secure voice command session keys. Use Value: High-drive opamp modes improve SNR on curved surfaces; CAN interface enables direct integration into vehicle infotainment backbone; TRNG secures biometric or voice-authenticated commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQA-S463 | Same package and core, but 256 KB flash / 32 KB SRAM; no CAN block. | Suitable for high-firmware-footprint touch HMI without vehicle bus connectivity. | Select when CAN is unnecessary and larger code space is required for complex UI stacks. |
| NXP S32K144W | ARM Cortex-M4F core, 112 MHz, CAN FD, higher ASIL-B tooling support, but no integrated CAPSENSE™. | Preferred for safety-critical motor control where CAN FD bandwidth and FMEDA coverage outweigh touch integration needs. | Choose when functional safety certification (ISO 26262) and CAN FD are mandatory, and external touch controller is acceptable. |
Compared with CY8C4146LQA-S453, CY8C4147LQA-S463 trades CAN for doubled memory, while S32K144W offers higher compute and CAN FD at the cost of requiring external capacitive sensing hardware and more complex safety qualification effort.
Availability
CY8C4146LQA-S453 is available at Aetrix Electronics and suitable for automotive body electronics, touch HMI systems, and CAN-connected sensor nodes requiring stable component supply, AEC-Q100 Grade-S compliance, and long-term industrial lifecycle support.
Supply support for CY8C4146LQA-S453 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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, radar, and security solutions, with global R&D and manufacturing infrastructure.
CY8C41xx PSoC™ 4100S Plus is part of Infineon's automotive-qualified programmable SoC product line, designed specifically for cost-sensitive, safety-aware body electronics with integrated capacitive touch and CAN connectivity.
FAQ
Does CY8C4146LQA-S453 support CAN FD?
No. This device integrates a CAN 2.0B controller with TTCAN capability but does not support CAN FD data rates or extended frame formats. CAN FD requires separate devices such as Infineon's AURIX™ TC3xx or S32K3xx families. The CY8C4146LQA-S453 CAN block complies fully with ISO 11898-1:2015 for classical CAN only.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ 3.x and PSoC™ Creator 4.4 for CY8C4146LQA-S453. ModusToolbox™ provides Eclipse-based IDE, Peripheral Driver Library (PDL), and CAPSENSE™ middleware; PSoC™ Creator offers schematic-driven design with automatic analog/digital routing. Both support the CY8CKIT-149 prototyping kit and MiniProg3 programmer/debugger.
Is the 12-bit SAR ADC capable of simultaneous sampling?
No. The 12-bit SAR ADC has a single conversion engine with a channel sequencer that supports automatic scanning across up to 16 inputs, but it does not perform true simultaneous sampling. Each channel is sampled sequentially with programmable delay; differential mode uses one channel pair per conversion cycle, limiting throughput to 1 Msps aggregate.
Can all 54 GPIOs be used for CAPSENSE™ simultaneously?
No. While all 54 GPIOs are CAPSENSE™-capable, practical implementation is limited by mutual capacitance coupling and scan time. The hardware supports up to 32 CSD sensors or 64 CSX electrodes per device, constrained by the number of available CSD channels and the 12-bit SAR ADC's shared use for other analog functions. Layout and firmware tuning determine actual usable count per design.
CY8C4146LQA-S453 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, 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, 12x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQA-S453 FAQ
1.How can I place an order for CY8C4146LQA-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-S453 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-S453 reliable?
The price and inventory of CY8C4146LQA-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S453?
CY8C4146LQA-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-S453 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-S453?
For technical support, including CY8C4146LQA-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S453 requirements.
6.How does Aetrix verify that CY8C4146LQA-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-S453 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-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S453?
All CY8C4146LQA-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-S453, 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-S453 part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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