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Infineon Technologies CY8C4146LQE-S273
- Part No.:
- CY8C4146LQE-S273
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQE-S273.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,379
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Product details
Overview
CY8C4146LQE-S273 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), eight 16-bit TCPWM units, a CAN 2.0B controller with TTCAN support, and programmable analog blocks - deployed in automotive body electronics, smart sensors, and HMI control modules.
For engineers reviewing the CY8C4146LQE-S273 datasheet, CY8C4146LQE-S273 pinout, CY8C4146LQE-S273 application, or CY8C4146LQE-S273 equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN capability, Deep Sleep current of 2.5 µA, and full ModusToolbox™/PSoC™ Creator toolchain support.
Technical Context
The device integrates a hard-macro CAN 2.0B block with time-triggered CAN (TTCAN) compliance, supporting deterministic message scheduling and error confinement for automotive network nodes. Its clock system combines a 4–33 MHz ECO, PLL-based 48-MHz core clock, 32-kHz WCO, and ±2% IMO - enabling precise timing across sleep/wake transitions and CAN bit-rate accuracy.
Programmable analog resources include two opamps with Deep Sleep operation, a 12-bit 1-Msps SAR ADC with channel sequencer and averaging, and dual IDACs usable for CAPSENSE™ or sensor biasing. Digital flexibility is delivered via Smart I/O logic blocks and eight TCPWM units supporting quadrature decode, kill-signal triggering, and center-aligned PWM for motor control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution for automotive control loops and sensor fusion. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader, OTA updates, and multi-tasking firmware. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered scheduling, synchronization, and fault-tolerant messaging for chassis/body networks. |
| CAPSENSE™ Performance | Sigma-delta CSD with SNR >5:1 and water tolerance - delivers robust touch detection in humid or contaminated environments. |
| Low-Power Operation | Deep Sleep mode at 2.5 µA system current with active analog - sustains capacitive sensing or RTC functions during vehicle sleep states. |
| GPIO & Peripherals | Up to 54 programmable GPIOs; 5 SCBs (I²C/SPI/UART/LIN); 8 TCPWM blocks - enables mixed-signal HMI, motor control, and multi-protocol gateway designs. |
| Qualification | AEC-Q100 Grade-S (–40°C to +105°C) - certified for under-hood and cabin-mounted automotive applications. |
Pinout & Package
CY8C4146LQE-S273 is housed in a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with wettable flank terminations for automated optical inspection (AOI). Pin assignments are validated per Infineon's official datasheet Rev. *S (2024-07-11), Section 2 "Pinouts".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O with CAPSENSE™/analog/digital capability | Configurable as CSD electrodes, ADC inputs, or UART TX/RX - supports hardware-driven touch scanning without CPU intervention. |
| P1[0]–P1[7] | GPIO bank with LCD segment drive support | Drives up to 32-segment LCD directly; also usable for PWM output or comparator reference routing. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer interface | Hard-macro CAN transceiver pins - require external CAN bus PHY; support dominant/recessive level detection and TTCAN timestamping. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz ECO for high-accuracy clock source; essential for CAN bit timing and USB-free synchronous comms. |
| VDDA / VSSA | Analog power supply and ground | Isolated analog domain supply pins - must be decoupled separately to maintain 12-bit ADC SNR and opamp PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning; adapts to environmental drift and electrode aging in production. |
| TTCAN Compliance | Integrated time-triggered CAN scheduler enables synchronized message transmission across ECUs - critical for brake-by-wire and ADAS coordination. |
| Deep Sleep Analog Retention | Opamps, comparators, and SAR ADC remain operational at 2.5 µA system current - enables always-on touch wake-up or battery-monitoring without full MCU wake. |
| Reconfigurable SCBs | Five independent serial blocks dynamically switch between I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count in multi-protocol gateways. |
| Programmable Smart I/O | Boolean logic on port signals enables glitch-free signal conditioning (e.g., debounce, edge detection) without CPU cycles or external logic ICs. |
Applications
| Automotive Door Module | Smart HVAC Control Panel |
|---|---|
|
Use Scenario: Integrated control of window lift, mirror adjustment, and interior lighting with capacitive touch buttons and CAN network reporting. IC Role / Device Role / Timing Role: Primary MCU executing CAN node firmware, CAPSENSE™ scan engine, and PWM motor drivers - synchronized via TTCAN timestamps. Use Value: Single-chip solution replaces discrete MCU + touch controller + CAN transceiver, reducing PCB area by 35% and qualifying to AEC-Q100 Grade-S. |
Use Scenario: Touch-enabled climate control interface with ambient light adaptive display and fan speed regulation via PWM. IC Role / Device Role / Timing Role: CAPSENSE™ host with SAR ADC for thermistor reading, TCPWM for brushless fan control, and SCB-as-UART for HVAC ECU communication. Use Value: Hardware-accelerated touch scanning achieves <10-ms response time; Deep Sleep mode maintains touch wake-up at <3 µA, extending battery backup life. |
| Body Control Unit (BCU) Subnode | Electric Parking Brake (EPB) Sensor Interface |
|
Use Scenario: Distributed subnode managing seat position memory, door lock status, and courtesy lighting via LIN and CAN. IC Role / Device Role / Timing Role: LIN slave node (via SCB) and CAN message router - uses Smart I/O to filter and forward diagnostic messages with zero CPU overhead. Use Value: Eliminates need for separate LIN transceiver and protocol stack; programmable GPIO drive strength ensures reliable 12-V load switching. |
Use Scenario: High-reliability interface between EPB actuator position sensors (potentiometer/resolver) and main brake ECU. IC Role / Device Role / Timing Role: Dual 12-bit SAR ADC with signal averaging reads redundant position sensors; CAN block reports validated position data with TTCAN timestamping. Use Value: On-chip ADC averaging and hardware CRC reduce sensor noise by 40%; TTCAN guarantees position report delivery within 50 µs jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQE-S293 | Same PSoC™ 4100S Plus family; 256 KB flash, 32 KB SRAM, identical peripherals and pinout. | Required for larger firmware images (e.g., dual-bank OTA, cryptographic stacks) where 128 KB flash is insufficient. | Select when firmware size exceeds 100 KB or secure boot + rollback protection is mandated. |
| SPC560B50L5 | 32-bit Power Architecture e200z0 core, 512 KB flash, no integrated CAPSENSE™, requires external touch controller. | Used in higher-tier BCUs requiring ASIL-B compliance and complex safety monitoring not supported by PSoC™ 4100S Plus. | Choose only if ISO 26262 ASIL-B certification path is required and CAPSENSE™ is not needed. |
Compared with CY8C4147LQE-S293, this part trades flash/SRAM headroom for cost-sensitive volume deployment; versus SPC560B50L5, it offers integrated capacitive sensing and lower-power sleep modes but lacks ASIL-B hardware safety features.
Availability
CY8C4146LQE-S273 is available at Aetrix Electronics and suitable for automotive body electronics, smart HMI interfaces, and CAN-connected sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146LQE-S273 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 R&D and manufacturing infrastructure.
CY8C4146LQE-S273 belongs to the PSoC™ 4100S Plus product line - designed specifically for cost-optimized, AEC-Q100-compliant automotive applications demanding integrated capacitive sensing, CAN connectivity, and ultra-low-power operation.
FAQ
Does CY8C4146LQE-S273 support ISO 26262 functional safety requirements?
No. CY8C4146LQE-S273 is AEC-Q100 Grade-S qualified but does not include hardware safety mechanisms (e.g., lockstep cores, ECC RAM, safety monitors) required for ISO 26262 ASIL-B or higher. It is intended for non-safety-critical automotive applications such as door modules and HVAC panels where ASIL-A or QM classification applies.
Can the on-chip CAPSENSE™ replace a dedicated touch controller in automotive-grade designs?
Yes. The CSD block delivers >5:1 SNR and built-in water tolerance, validated per IEC 61000-4-6 and automotive humidity tests. SmartSense auto-tuning eliminates factory calibration, and hardware-accelerated scanning offloads the CPU - making it suitable for production touch interfaces in vehicles.
What development tools are officially supported for CY8C4146LQE-S273?
Infineon officially supports PSoC™ Creator (legacy Windows IDE) and ModusToolbox™ (cross-platform, Eclipse-based). Both provide full peripheral configuration, CAPSENSE™ tuning GUI, CAN stack integration, and debug via MiniProg3 or KitProg3. No third-party IDEs are officially qualified for production firmware sign-off.
Is external CAN transceiver required for CY8C4146LQE-S273?
Yes. The device contains only the CAN protocol controller (CAN MAC + TTCAN scheduler); an external high-speed CAN transceiver (e.g., TJA1042, IFX1050) is mandatory to drive the physical bus. The CAN_TX/CAN_RX pins are CMOS-level digital signals, not bus-capable outputs.
CY8C4146LQE-S273 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:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, Temp Sensor, 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQE-S273 FAQ
1.How can I place an order for CY8C4146LQE-S273 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQE-S273 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 CY8C4146LQE-S273 reliable?
The price and inventory of CY8C4146LQE-S273 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQE-S273 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQE-S273?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQE-S273 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQE-S273?
CY8C4146LQE-S273 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQE-S273 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 CY8C4146LQE-S273?
For technical support, including CY8C4146LQE-S273 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQE-S273 requirements.
6.How does Aetrix verify that CY8C4146LQE-S273 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQE-S273 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 CY8C4146LQE-S273 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQE-S273?
All CY8C4146LQE-S273 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQE-S273, 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 CY8C4146LQE-S273 part is unused and in its original packaging.
Return procedure for CY8C4146LQE-S273:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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