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Infineon Technologies CY8C4146LQE-S273T
- Part No.:
- CY8C4146LQE-S273T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQE-S273T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,076
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Product details
Overview
CY8C4146LQE-S273T 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 a CAN 2.0B block with TTCAN support, five reconfigurable SCBs (I²C/SPI/UART/LIN), and eight TCPWM blocks-enabling motor control, touch HMI, and body electronics in automotive ECUs.
For engineers reviewing the CY8C4146LQE-S273T datasheet, CY8C4146LQE-S273T pinout, CY8C4146LQE-S273T application, or CY8C4146LQE-S273T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAN 2.0B with time-triggered capability, CAPSENSE™ SNR >5:1 under wet conditions, Deep Sleep current of 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 (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) and digital blocks (Smart I/O, TCPWM, SCBs) operate independently under hardware control. All analog peripherals remain functional in Deep Sleep mode at 2.5 µA system current.
Its clock system integrates a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO, with a PLL generating the precise 48-MHz CPU clock. The CAN block supports TTCAN for deterministic timing-critical automotive networks, and CAPSENSE™ uses sigma-delta (CSD) modulation with hardware-accelerated SmartSense tuning for robust touch operation across temperature and humidity variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution of automotive control loops and sensor fusion algorithms. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader, OTA update partitions, and dual-bank firmware storage. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered scheduling for synchronized actuator control in chassis and powertrain systems. |
| CAPSENSE™ Performance | Sigma-delta CSD with SNR >5:1 and water tolerance - enables reliable touch buttons/knobs in automotive cabin interfaces under condensation or splash. |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - sustains capacitive sensing and comparator wake-up while minimizing battery drain in always-on modules. |
| GPIO Count & Flexibility | 54 programmable pins, any pin supports CAPSENSE™, analog, or digital functions - eliminates external routing logic and reduces BOM count in multi-sensor nodes. |
| Serial Peripherals | 5 × SCBs, runtime-reconfigurable as I²C/SPI/UART/LIN - allows dynamic protocol switching for diagnostics, sensor aggregation, and gateway communication. |
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 supply domains | Independent 1.71–5.5 V supplies per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, or serial interface functions - configured via firmware without hardware change. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer I/O | Hardwired to internal CAN controller; supports direct connection to ISO 11898-2 transceiver with no external logic required. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz ECO for high-accuracy timing; essential for CAN bit timing compliance and clock domain synchronization. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC functionality and low-power wake-up timing independent of main clock source during Deep Sleep. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAPSENSE™ with SmartSense | Hardware-accelerated auto-tuning eliminates manual calibration; maintains stable touch performance across voltage, temperature, and contamination. |
| TTCAN Support | Time-triggered scheduling ensures deterministic message transmission windows - critical for safety-related actuator coordination in ADAS and chassis control. |
| Deep Sleep with Active Analog | 2.5 µA system current while running CAPSENSE™ and comparators - enables always-on touch wake-up and intrusion detection in parked vehicle mode. |
| Runtime-Reconfigurable SCBs | Five serial blocks dynamically switch between I²C, SPI, UART, or LIN protocols - simplifies firmware reuse across variants and reduces test fixture complexity. |
| Programmable Analog Blocks | Two opamps with internal/external drive modes + 12-bit SAR ADC with sequencer - supports sensor signal conditioning, battery monitoring, and closed-loop analog feedback without external ICs. |
Applications
| Automotive Door Module | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Centralized control of window lift, mirror fold, lock/unlock, and interior lighting with capacitive touch panels. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, CAPSENSE™ for touch interface, and TCPWM for motor drive PWM generation. Use Value: Single-chip integration replaces discrete MCU + touch controller + motor driver, reducing PCB area by 35% and enabling Grade-S thermal operation up to +105°C. |
Use Scenario: Power distribution, lamp dimming, and theft-deterrent siren control in entry-level vehicles. IC Role / Device Role / Timing Role: System controller managing LIN slave nodes (door modules), driving LED strings via PWM, and detecting tamper events using low-power comparators. Use Value: Deep Sleep current of 2.5 µA extends battery life during vehicle off-state; integrated LIN slave eliminates external transceiver in cost-sensitive BCM designs. |
| Steering Wheel Touch Interface | Electronic Parking Brake (EPB) Controller |
|
Use Scenario: Multi-function capacitive touch controls (cruise, audio, phone) embedded in leather-wrapped steering wheel. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ subsystem with CSD modulation and SmartSense, communicating status over CAN to head unit. Use Value: SNR >5:1 ensures reliable operation under sweat, rain, or glove use; AEC-Q100 Grade-S qualification guarantees reliability at cabin temperatures up to +105°C. |
Use Scenario: Safety-critical actuation of parking brake calipers with fail-safe monitoring and CAN diagnostics. IC Role / Device Role / Timing Role: Dual-core lockstep not present, but TTCAN-enabled MCU coordinating motor drivers, position sensors, and watchdog timers via hardware-triggered Kill signals from TCPWM comparators. Use Value: Comparator-based Kill signal generation ensures sub-microsecond response to overcurrent or position fault - meeting ASIL-B functional safety requirements without external safety monitor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQE-S473 | Same PSoC™ 4100S Plus family, but 64-pin TQFP package, 128 KB flash, 16 KB SRAM, and 54 GPIO - identical peripheral set and AEC-Q100 Grade-S rating. | Requires larger PCB footprint and different layout constraints; suitable when higher pin count or TQFP assembly preference exists. | Select for designs needing more trace routing flexibility or legacy TQFP-compatible manufacturing lines. |
| SPC560P50L5 | 32-bit Power Architecture MCU (e200z0h core), 64 MHz, 512 KB flash, 48 KB RAM, CAN FD, no integrated CAPSENSE™ - requires external touch controller. | Targeted at higher-performance powertrain/body gateways; lacks on-chip capacitive sensing and SmartSense tuning. | Choose when CAN FD bandwidth or larger memory is prioritized over integrated HMI functionality and ultra-low Deep Sleep current. |
Compared with CY8C4146LQE-S273T, CY8C4147LQE-S473 offers identical functionality in a different package, while SPC560P50L5 trades integrated CAPSENSE™ and 2.5 µA Deep Sleep for CAN FD and larger memory - making the former optimal for compact, touch-centric automotive modules and the latter for gateway-class systems requiring higher data throughput.
Availability
CY8C4146LQE-S273T is available at Aetrix Electronics and suitable for automotive door modules, body control units, steering wheel touch interfaces, and electronic parking brake controllers requiring stable component supply under AEC-Q100 Grade-S conditions.
Supply support for CY8C4146LQE-S273T 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, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQE-S273T belongs to the PSoC™ 4100S Plus product line, designed specifically for cost-optimized, AEC-Q100-compliant automotive human-machine interface and body electronics applications requiring integrated capacitive sensing, CAN, and ultra-low-power operation.
FAQ
Does CY8C4146LQE-S273T support CAN FD?
No. This device integrates a CAN 2.0B controller with time-triggered capability (TTCAN), but does not support CAN FD data rates or extended frame formats. CAN FD support begins with later-generation PSoC™ 4 devices such as the PSoC™ 4500 series or Infineon's AURIX™ TC3xx family.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator v4.4 for firmware development, along with the CY8CKIT-149 prototyping kit and MiniProg3 programmer/debugger. Both IDEs provide full register access, CAPSENSE™ tuning GUI, and TCPWM configuration wizards tailored to this silicon revision.
Is the 2.5 µA Deep Sleep current achievable with all peripherals active?
Yes - the 2.5 µA specification includes active CAPSENSE™ scanning, two low-power comparators, and the 32-kHz ILO running. However, the 12-bit SAR ADC, opamps in high-drive mode, and SCBs must be disabled to maintain this current; only Deep Sleep-optimized analog blocks remain functional.
How is CAPSENSE™ calibrated across temperature and voltage drift?
SmartSense auto-tuning runs in hardware during initialization and periodically in runtime, adjusting IDAC current, scan resolution, and baseline tracking parameters based on real-time signal-to-noise analysis - eliminating need for factory calibration or software compensation tables.
CY8C4146LQE-S273T 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:
- 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, 16x12b 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-S273T FAQ
1.How can I place an order for CY8C4146LQE-S273T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQE-S273T 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-S273T reliable?
The price and inventory of CY8C4146LQE-S273T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQE-S273T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQE-S273T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQE-S273T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQE-S273T?
CY8C4146LQE-S273T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQE-S273T 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-S273T?
For technical support, including CY8C4146LQE-S273T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQE-S273T requirements.
6.How does Aetrix verify that CY8C4146LQE-S273T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQE-S273T 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-S273T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQE-S273T?
All CY8C4146LQE-S273T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQE-S273T, 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-S273T part is unused and in its original packaging.
Return procedure for CY8C4146LQE-S273T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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