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Infineon Technologies CY8C4146LQS-S273T
- Part No.:
- CY8C4146LQS-S273T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQS-S273T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
CY8C4146LQS-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 five reconfigurable serial communication blocks (I²C/SPI/UART/LIN), a CAN 2.0B controller with TTCAN support, and eight 16-bit TCPWM modules - deployed in automotive body control modules, smart door handles, and HVAC interface panels.
For engineers reviewing the CY8C4146LQS-S273T datasheet, CY8C4146LQS-S273T pinout, CY8C4146LQS-S273T application, or CY8C4146LQS-S273T 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, 12-bit 1-Msps SAR ADC with sequencer, and programmable analog blocks supporting opamp-comparator-ADC-IDAC co-location on GPIO.
Technical Context
The device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core coordinates programmable digital logic (Smart I/O, TCPWM), configurable analog resources (CTB opamps, SAR ADC, IDACs), and fixed-function peripherals (CAN, SCBs). Its clock system combines a 4–33 MHz ECO, PLL for 48-MHz core clock, and low-power oscillators (WCO, ILO) enabling precise timing across sleep/wake transitions.
Capacitive sensing is implemented via dedicated CSD hardware delivering >5:1 SNR and water tolerance, supported by hardware-accelerated SmartSense tuning - eliminating manual calibration. The CAN block supports TTCAN for deterministic scheduling in distributed automotive networks, while five SCBs allow concurrent I²C, SPI, UART, and LIN slave operation without resource conflict.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic control with Thumb-2 instruction set and NVIC-based interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports firmware updates over CAN/LIN and dual-bank bootloading. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - suitable for battery voltage monitoring and sensor signal acquisition. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered message scheduling for safety-critical actuator control loops. |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and cabin electronics per AEC-Q100 Rev G. |
| Deep Sleep Current | 2.5 µA digital system current - enables always-on wake-on-touch or wake-on-CAN functionality in low-power gateways. |
| GPIO Count | Up to 54 programmable pins - all support CAPSENSE™, analog input/output, or digital logic with configurable drive strength/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 GPIOs; independent regulation enables mixed-voltage interfacing (e.g., 3.3 V MCU + 5 V sensors). |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™ CSD, analog input (SAR ADC), opamp output, or SCB0 I²C - fully reconfigurable per firmware. |
| CAN_TX / CAN_RX | Dedicated CAN Transceiver Interface | Direct connection to external CAN transceiver (e.g., TJA1042); supports dominant/recessive bit timing per ISO 11898-2. |
| XTAL_IN / XTAL_OUT | External Crystal Oscillator Input/Output | Drives 4–33 MHz crystal for high-accuracy clock source; required for CAN bit timing stability and ECU synchronization. |
| SWDCK / SWDIO | ARM Serial Wire Debug Interface | Enables non-intrusive debug, flash programming, and real-time trace via MiniProg3 or KitProg3 debug probes. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAPSENSE™ CSD | Hardware-accelerated sigma-delta sensing with >5:1 SNR and built-in water tolerance - eliminates need for external shielding or guard traces in wet-environment HMI. |
| SmartSense Auto-Tuning | Firmware-transparent hardware calibration that adjusts sensor parameters (IDAC, resolution, scan speed) dynamically - reduces development time by >70% vs manual tuning. |
| Reconfigurable SCBs | Five independent serial blocks each configurable as I²C master/slave, SPI master/slave, UART, or LIN slave - enables multi-protocol gateway without external bridge ICs. |
| TTCAN Support | Time-triggered CAN scheduling with guaranteed message transmission windows - meets ASAM MCD-2 MC and AUTOSAR COM stack timing requirements. |
| Deep Sleep Analog Retention | Opamps, comparators, and SAR ADC remain operational during Deep Sleep at 2.5 µA - enables continuous touch detection or battery monitoring without waking CPU. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
|
Use Scenario: Capacitive touch buttons and sliders on vehicle door trim controlling window lift, mirror fold, and lock/unlock functions. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scanning, LIN slave communication to body control module, and PWM-driven LED backlight dimming. Use Value: Single-chip integration eliminates discrete touch controller and LIN transceiver, reducing BOM cost by $0.85 and PCB area by 28 mm². |
Use Scenario: Touch-enabled HVAC interface with temperature display, fan speed control, and air distribution mode selection. IC Role / Device Role / Timing Role: Real-time sensor fusion hub aggregating NTC thermistor readings, capacitive touch inputs, and CAN bus commands for climate actuator control. Use Value: On-chip 12-bit SAR ADC with sequencer and averaging delivers ±0.5°C temperature accuracy without external signal conditioning. |
| Body Control Gateway | Seat Position Memory System |
|
Use Scenario: Centralized LIN-to-CAN gateway managing door modules, lighting nodes, and wiper control units in entry-level vehicles. IC Role / Device Role / Timing Role: Protocol translator with five SCBs handling concurrent LIN slave responses and CAN message forwarding with TTCAN scheduling. Use Value: Hardware TTCAN scheduler ensures <5 µs jitter on seat motor enable signals, meeting ISO 26262 ASIL-B timing constraints. |
Use Scenario: Non-volatile storage and recall of driver seat position, mirror angle, and steering column settings using EEPROM emulation. IC Role / Device Role / Timing Role: Flash-resident configuration manager with CRC-protected parameter storage and wake-on-CAN event triggering. Use Value: 128 KB flash with ECC and wear-leveling support enables 100,000+ write cycles for seat profile data retention over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | Arm® Cortex®-M4F core, 112 MHz, 1 MB flash, no integrated CAPSENSE™, requires external touch controller. | Better floating-point performance for motor control algorithms; lacks on-chip capacitive sensing hardware. | Select when advanced motor control or OTA update security (HSM) is prioritized over touch integration. |
| Renesas RL78/F14 | RL78 core, 32 MHz, 512 KB flash, AEC-Q100 Grade-2 (–40°C to +105°C), no CAN FD or TTCAN. | Lower power in stop mode (0.25 µA), but limited analog resources and no hardware CSD engine. | Select for ultra-low-power body electronics where CAN timing determinism is not required. |
Compared with S32K144W and RL78/F14, CY8C4146LQS-S273T uniquely integrates CAPSENSE™ CSD, TTCAN, and Deep Sleep analog retention in a single AEC-Q100 Grade-S package - optimizing BOM count and development cycle for touch-enabled automotive ECUs.
Availability
CY8C4146LQS-S273T is available at Aetrix Electronics and suitable for automotive body control modules, climate control interfaces, and seat memory systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for CY8C4146LQS-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 AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and security solutions, with global R&D centers and wafer fabs in Dresden and Villach.
CY8C4146LQS-S273T belongs to the PSoC™ 4100S Plus product line, designed specifically for cost-sensitive, safety-aware automotive human-machine interfaces requiring integrated capacitive sensing, CAN connectivity, and low-power operation.
FAQ
Does CY8C4146LQS-S273T support CAN FD?
No. This device implements CAN 2.0B with TTCAN extensions only. It does not support CAN FD data rates or extended frame formats. For CAN FD requirements, consider Infineon's AURIX™ TC3xx family or Cypress' later-generation Traveo™ II devices.
What debug interfaces are supported?
CY8C4146LQS-S273T supports ARM Serial Wire Debug (SWD) via SWDCK and SWDIO pins. It is compatible with Infineon's MiniProg3, KitProg3, and third-party J-Link probes. SWD enables full-speed debugging, flash programming, and real-time variable monitoring without halting peripheral operation.
Is CAPSENSE™ firmware included or licensed separately?
CAPSENSE™ middleware is provided royalty-free in Infineon's PDL (Peripheral Driver Library) and ModusToolbox™ software suite. No separate license or runtime fee applies. Pre-certified components for buttons, sliders, and proximity detection are available in PSoC™ Creator and ModusToolbox™ configurators.
What is the maximum operating frequency of the internal IMO?
The internal main oscillator (IMO) is factory-trimmed to ±2% accuracy at 48 MHz and can be configured down to 1 MHz. It serves as the default clock source at power-up and supports dynamic frequency scaling - but cannot exceed 48 MHz, as higher frequencies require PLL multiplication from ECO or WCO sources.
CY8C4146LQS-S273T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100
- 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 ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQS-S273T FAQ
1.How can I place an order for CY8C4146LQS-S273T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQS-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 CY8C4146LQS-S273T reliable?
The price and inventory of CY8C4146LQS-S273T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQS-S273T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQS-S273T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQS-S273T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQS-S273T?
CY8C4146LQS-S273T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQS-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 CY8C4146LQS-S273T?
For technical support, including CY8C4146LQS-S273T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQS-S273T requirements.
6.How does Aetrix verify that CY8C4146LQS-S273T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQS-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 CY8C4146LQS-S273T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQS-S273T?
All CY8C4146LQS-S273T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQS-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 CY8C4146LQS-S273T part is unused and in its original packaging.
Return procedure for CY8C4146LQS-S273T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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