My Inquiry
My Account
Infineon Technologies CY8C4146LQA-S253
- Part No.:
- CY8C4146LQA-S253
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S253.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,267
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4146LQA-S253 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 two opamps, a 12-bit 1-Msps SAR ADC, five reconfigurable SCBs (I²C/SPI/UART/LIN), and a CAN 2.0B block with TTCAN support - deployed in automotive body electronics and interior HMI systems.
For engineers reviewing the CY8C4146LQA-S253 datasheet, CY8C4146LQA-S253 pinout, CY8C4146LQA-S253 application, or CY8C4146LQA-S253 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 54 GPIO with programmable drive strength and slew rate.
Technical Context
The device implements a tightly coupled mixed-signal architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog blocks (CTB opamps, SAR ADC, IDACs) and digital logic (Smart I/O, TCPWM, SCBs) operate independently under hardware routing control. Its clock system integrates ECO (4–33 MHz), PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO for precise timing across sleep/wake transitions.
The CAN block supports time-triggered operation with dedicated message RAM, timestamping, and error counters; the CAPSENSE™ subsystem uses sigma-delta (CSD) modulation with hardware-accelerated baseline tracking and noise rejection - both validated for automotive touch interfaces exposed to moisture and ESD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with Thumb-2 instruction set and NVIC interrupt handling. |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB SRAM - supports secure bootloader, OTA updates, and dual-bank firmware storage. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution sensor acquisition without CPU overhead. |
| CAPSENSE™ | Sigma-delta CSD with SNR >5:1 and water tolerance - enables robust touch buttons/sliders in automotive cabin environments. |
| CAN Interface | CAN 2.0B with TTCAN support, 32-message RAM, timestamping - meets ISO 11898-1 and AUTOSAR-compliant communication timing. |
| Power Range | 1.71 V to 5.5 V supply; Deep Sleep current ≤2.5 µA - allows direct battery connection and ultra-low-power wake-on-touch operation. |
| GPIO Count | 54 programmable pins with configurable drive modes, slew rates, and ESD protection - supports mixed-signal routing, LCD segment drive, and CAPSENSE™ self/ mutual-capacitance. |
Pinout & Package
This device is housed in a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with wettable flank terminations for automotive-grade solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supplies per port group - enables mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0.0–P9.7 | Programmable GPIO | 54 total pins; each supports CAPSENSE™, analog input/output, digital logic, or LCD segment drive - no fixed peripheral pin assignment. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Internal CAN PHY with slew-rate control and bus fault detection - requires external high-speed CAN transceiver for physical layer. |
| 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-free synchronous comms. |
| VDDD / VSSD | Digital core supply/ground | 1.71–5.5 V digital domain with internal LDO regulation - powers CPU, flash, SRAM, and digital peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration that dynamically adjusts scan parameters to maintain SNR >5:1 across temperature, voltage, and contamination - eliminates manual tuning in production. |
| Deep Sleep Analog Operation | Opamps, comparators, and IDACs remain active during Deep Sleep mode at ≤2.5 µA system current - enables always-on capacitive wake detection without host CPU intervention. |
| Reconfigurable SCBs | Five serial blocks each configurable as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count by eliminating discrete protocol translators. |
| TTCAN Support | Time-triggered CAN with guaranteed message transmission windows and synchronization via WCO/ECO - satisfies ASAM MCD-2 MC and AUTOSAR COM stack timing requirements. |
| Programmable Smart I/O | Boolean logic engine on GPIO path enabling edge detection, pulse stretching, and state-machine offload - reduces CPU load for debounce, LED timing, and safety-critical signal conditioning. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door handle and window switch cluster operating in humid, wide-temperature cabin environments. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, LIN slave communication to body controller, and PWM-driven LED status indicators. Use Value: SmartSense maintains >5:1 SNR across –40°C to +105°C and condensation; LIN slave SCB enables seamless integration into vehicle body network without external transceiver. | Use Scenario: HVAC control panel with slider-based temperature adjustment and rotary encoder emulation using capacitive rings. IC Role / Device Role / Timing Role: CAPSENSE™-optimized MCU managing multi-channel CSD scanning, quadrature decoder for rotary input, and CAN 2.0B messaging to HVAC ECU. Use Value: Integrated quadrature decoder and TTCAN ensure deterministic response to user input and synchronized climate actuation within 2 ms timing budget. |
| Steering Wheel Controls | Seat Position Memory System |
Use Scenario: Safety-critical touch controls embedded in leather-wrapped steering wheel, subject to ESD and mechanical vibration. IC Role / Device Role / Timing Role: AEC-Q100 qualified MCU performing CAPSENSE™ with hardware-based noise filtering, CAN message framing, and watchdog supervision. Use Value: On-die ESD protection (±8 kV HBM), Deep Sleep wake-on-touch latency <100 µs, and CAN CRC/error frame handling meet ISO 26262 ASIL-B functional safety requirements. | Use Scenario: Motorized seat module storing and recalling position presets using nonvolatile flash and analog potentiometer feedback. IC Role / Device Role / Timing Role: Sensor fusion MCU acquiring 12-bit ADC readings from seat track potentiometers, driving motor drivers via TCPWM, and communicating over CAN. Use Value: 12-bit SAR ADC with channel sequencer and signal averaging achieves ±0.5% position resolution; TCPWM center-aligned mode ensures smooth, low-noise motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | ARM Cortex-M4F core, 112 MHz; includes Ethernet MAC and FlexIO; lacks integrated CAPSENSE™ | Targeted at gateway and ADAS-adjacent modules requiring higher compute and networking; requires external touch controller | Select when needing floating-point math, Ethernet, or ASIL-D decomposition - not for cost-sensitive touch HMI. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; 128 KB flash, 10 KB RAM; includes capacitive touch IP but no CAN FD or TTCAN | Designed for entry-level automotive body control; limited to basic CAN 2.0A and no time-triggered scheduling | Select for legacy platform continuity or lower-cost non-safety-critical switches - not for TTCAN or high-SNR touch. |
Compared with NXP S32K144W and Renesas RL78/F14, CY8C4146LQA-S253 uniquely combines AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense, TTCAN, and Deep Sleep analog operation - making it optimal for automotive interior HMI where touch reliability, low-power always-on capability, and deterministic CAN timing are mandatory.
Availability
CY8C4146LQA-S253 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 CY8C4146LQA-S253 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 and manufacturing infrastructure supporting automotive AEC-Q100 and industrial reliability standards.
The PSoC™ 4100S Plus product line targets automotive interior human-machine interface applications requiring integrated capacitive sensing, deterministic communication, and functional safety-aware low-power operation - designed specifically for touch-based body electronics.
FAQ
Does CY8C4146LQA-S253 support CAN FD?
No. This device implements a CAN 2.0B controller with TTCAN extensions but does not support CAN FD data rates or flexible data-length frames. It complies with ISO 11898-1:2015 for classical CAN only. For CAN FD, consider Infineon's AURIX™ TC3xx family or Cypress PSoC™ 6 devices with dual-core CAN FD support.
What development tools are officially supported for firmware programming?
Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator v4.4 for CY8C4146LQA-S253. Programming requires MiniProg3 or KitProg3 debug probes. ModusToolbox™ provides Peripheral Driver Library (PDL) APIs and CAPSENSE™ Tuner GUI; PSoC™ Creator offers schematic-based design with automatic analog/digital routing.
Is external flash required for OTA firmware updates?
No. The device includes 128 KB of on-chip flash with Read Accelerator and supports dual-bank firmware update schemes using internal flash sectors. Bootloader code can be locked in protected flash pages, and application images updated via CAN or UART without external memory - meeting UNECE R156 software update requirements.
How is CAPSENSE™ performance validated for automotive moisture exposure?
Infineon validates CAPSENSE™ using IEC 60529 IPX3 spray testing and conductive liquid contamination per ISO 16750-4. The CSD architecture achieves >5:1 SNR under 0.5 mm water film and recovers baseline within 2 seconds after wipe-off - confirmed in AEC-Q200 stress tests and documented in AN85951 and CY8C4100S Plus CAPSENSE™ validation reports.
CY8C4146LQA-S253 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-S253 FAQ
1.How can I place an order for CY8C4146LQA-S253 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-S253 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-S253 reliable?
The price and inventory of CY8C4146LQA-S253 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S253 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S253?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S253 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S253?
CY8C4146LQA-S253 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-S253 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-S253?
For technical support, including CY8C4146LQA-S253 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S253 requirements.
6.How does Aetrix verify that CY8C4146LQA-S253 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-S253 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-S253 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S253?
All CY8C4146LQA-S253 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-S253, 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-S253 part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S253:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4146LQA-S253 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
Machine vision system guide covering components, inspection workflow, camera and lens selection, FOV, pixel resolution, motion blur, strobe lighting, bandwidth, 2D/3D vision, integration, troubleshooti…
