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Infineon Technologies CY8C4146LQA-S273T
- Part No.:
- CY8C4146LQA-S273T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S273T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
CY8C4146LQA-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 blocks-enabling motor control, touch HMI, and body electronics in automotive ECUs.
For engineers reviewing the CY8C4146LQA-S273T datasheet, CY8C4146LQA-S273T pinout, CY8C4146LQA-S273T application, or CY8C4146LQA-S273T equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current of 2.5 µA, and 54 GPIO with programmable drive strength and slew rate.
Technical Context
The device integrates a dual-domain clock system with a 48-MHz PLL-driven core clock, independent 32-kHz WCO for RTC, and ±2% IMO for fast wake-up. Its analog subsystem includes two opamps supporting ADC input buffering and Deep Sleep operation, plus a 12-bit 1-Msps SAR ADC with channel sequencer and signal averaging.
Digital flexibility is delivered via Smart I/O logic blocks for Boolean port-level operations, eight TCPWM blocks with quadrature decode and comparator-triggered kill signals, and five SCBs that dynamically switch between I²C, SPI, UART, or LIN slave modes-all configurable at runtime without firmware reload.
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-based interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure boot, firmware updates, and multi-tasking with low-latency memory access. |
| Capacitive Sensing | CAPSENSE™ CSD with SNR >5:1 and SmartSense™ auto-tuning - delivers robust touch detection under wet conditions without manual calibration. |
| CAN Interface | CAN 2.0B + Time-Triggered CAN (TTCAN) - ensures deterministic message scheduling and synchronization for safety-critical vehicle networks. |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - maintains sensor monitoring and wake-on-event capability while minimizing battery drain. |
| GPIO | 54 pins, all CAPSENSE™/analog/digital capable, programmable drive/slew - eliminates external level shifters and simplifies PCB routing for mixed-signal designs. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, hardware sequencer with averaging - supports high-fidelity sensor acquisition (e.g., temperature, pressure) with noise suppression. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supplies per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensors). |
| P0[0]–P9[7] | Programmable GPIO | All pins support CAPSENSE™, analog input/output, digital logic, and configurable slew/drive - no fixed-function pin constraints. |
| CAN_TX / CAN_RX | CAN physical layer interface | Dedicated differential pair with internal termination and slew control - meets ISO 11898-2 electrical requirements without external transceiver components. |
| XTAL_IN / XTAL_OUT | External crystal oscillator input | Supports 4–33 MHz ECO for precise timing; used with PLL to generate stable 48 MHz system clock. |
| WCO_IN / WCO_OUT | 32.768 kHz watch crystal interface | Enables low-power RTC operation during Deep Sleep with <1 µA quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Runtime-reconfigurable SCBs | Five serial blocks can be independently assigned as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and enables protocol agility in field-upgradable ECUs. |
| Smart I/O logic | Boolean combinational logic on GPIO inputs/outputs - implements debounce, edge detection, or state machines without CPU intervention, lowering latency and power. |
| TCPWM with Kill input | Hardware-triggered PWM shutdown via comparator output - provides sub-microsecond fault response for motor drives and power converters. |
| True Random Number Generator (TRNG) | On-chip entropy source compliant with NIST SP 800-90B - enables secure key generation for TLS handshake and firmware authentication in telematics modules. |
| LCD segment drive | Direct GPIO-based segment/backplane drive up to 4×28 segments - eliminates dedicated LCD driver IC in instrument cluster and center console displays. |
Applications
| Automotive Door Module | Electric Power Steering (EPS) ECU |
|---|---|
Use Scenario: Multi-function door control with window lift, mirror adjustment, and capacitive touch switches. IC Role / Device Role / Timing Role: Main MCU executing CAN gateway logic, CAPSENSE™ touch processing, and PWM motor control for actuators. Use Value: Single-chip integration replaces discrete MCU + touch controller + CAN transceiver, reducing board area by 35% and enabling IPX7-rated sealed design. | Use Scenario: Real-time torque assist calculation, motor phase control, and fault monitoring in steer-by-wire systems. IC Role / Device Role / Timing Role: Safety-critical controller running ASIL-B software with TTCAN-synchronized sensor sampling and hardware PWM kill for overcurrent protection. Use Value: Deterministic 100 µs PWM update cycle and comparator-triggered kill signal meet ISO 26262 timing requirements without external safety monitor. |
| Body Control Module (BCM) | Climate Control Panel |
Use Scenario: Centralized lighting, HVAC, and alarm management across 12V/24V vehicle platforms. IC Role / Device Role / Timing Role: CAN node managing distributed peripherals, executing LIN slave protocols for fan motors, and monitoring analog sensors (temp/humidity). Use Value: Five SCBs allow concurrent CAN, LIN, and I²C traffic; 12-bit ADC with averaging ensures ±0.5°C temperature accuracy over full Grade-S range. | Use Scenario: Touch-enabled HVAC interface with backlight dimming, haptic feedback, and ambient light adaptation. IC Role / Device Role / Timing Role: CAPSENSE™-optimized controller performing wet-finger rejection, LED PWM dimming, and ambient light ADC sampling. Use Value: SmartSense™ auto-tuning eliminates factory calibration; integrated opamps buffer photodiode signals without external amplifiers. |
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-die capacitive sensing. | Select when advanced math-intensive control (e.g., FOC) dominates over touch HMI integration. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, 512 KB flash, AEC-Q100 Grade-2 (–40°C to +105°C), no CAN FD or TTCAN. | Lower cost for basic body electronics; lacks time-triggered CAN and hardware kill signal for motor safety. | Select for non-safety-critical LIN/I²C nodes where CAN timing determinism is not required. |
Compared with S32K144W and RL78/F14, CY8C4146LQA-S273T uniquely combines AEC-Q100 Grade-S qualification, integrated CAPSENSE™ with SmartSense™, TTCAN, and hardware PWM kill in a single 48-pin QFN-reducing system complexity for touch-enabled automotive ECUs requiring functional safety and mixed-signal integration.
Availability
CY8C4146LQA-S273T is available at Aetrix Electronics and suitable for automotive door modules, electric power steering ECUs, body control modules, and climate control panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146LQA-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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQA-S273T belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive body electronics and human-machine interfaces requiring AEC-Q100 qualification, integrated capacitive sensing, and deterministic CAN communication.
FAQ
Does CY8C4146LQA-S273T support CAN FD?
No. This device implements CAN 2.0B with optional Time-Triggered CAN (TTCAN) but does not support CAN FD data rates or extended frame formats. TTCAN provides deterministic scheduling and synchronization for safety-critical messaging, while CAN FD requires separate hardware blocks found in higher-tier PSoC™ devices like the PSoC™ 6 series.
What is the maximum operating frequency of the internal main oscillator (IMO)?
The internal main oscillator (IMO) operates at a nominal 48 MHz with ±2% initial accuracy across voltage and temperature. It serves as the default clock source at power-on and supports fast wake-up from Deep Sleep in under 1 µs, enabling low-latency event response without external crystal startup delay.
Can all 54 GPIO pins be used simultaneously for CAPSENSE™?
No. While all 54 pins are CAPSENSE™-capable, the number of active sensing channels is limited by the CSD block's hardware resources: up to 32 electrodes with mutual-capacitance scanning or 64 with self-capacitance, constrained by scan time, SNR requirements, and firmware resource allocation-not pin count alone.
Is ModusToolbox™ required to develop for this device?
No. Development is fully supported in both ModusToolbox™ (Linux/Windows/macOS, Eclipse-based) and the legacy PSoC™ Creator IDE (Windows-only). PSoC™ Creator provides schematic-based design entry and automatic analog/digital routing, while ModusToolbox™ offers CLI tools, GitHub-integrated libraries, and peripheral configurators compatible with third-party IDEs like VS Code and Keil µVision.
CY8C4146LQA-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:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, 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, 16x12b SAR, Sigma-Delta; D/A 1x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQA-S273T FAQ
1.How can I place an order for CY8C4146LQA-S273T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-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 CY8C4146LQA-S273T reliable?
The price and inventory of CY8C4146LQA-S273T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S273T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S273T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S273T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S273T?
CY8C4146LQA-S273T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-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 CY8C4146LQA-S273T?
For technical support, including CY8C4146LQA-S273T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S273T requirements.
6.How does Aetrix verify that CY8C4146LQA-S273T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-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 CY8C4146LQA-S273T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S273T?
All CY8C4146LQA-S273T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-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 CY8C4146LQA-S273T part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S273T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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