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Infineon Technologies CY8C4146LQA-S273
- Part No.:
- CY8C4146LQA-S273
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S273.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,773
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Product details
Overview
CY8C4146LQA-S273 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 five reconfigurable serial communication blocks (SCB), eight 16-bit TCPWM units, CAN 2.0B with TTCAN support, and operates from 1.71 V to 5.5 V.
For engineers reviewing the CY8C4146LQA-S273 datasheet, CY8C4146LQA-S273 pinout, CY8C4146LQA-S273 application, or CY8C4146LQA-S273 equivalent, key selection criteria include its certified automotive qualification, on-die CAPSENSE™ SNR > 5:1, Deep Sleep current of 2.5 µA, CAN 2.0B + TTCAN compliance, and full GPIO reconfigurability across analog/digital/CAPSENSE™ functions.
Technical Context
This device implements a mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, two IDACs, two low-power comparators) coexist with digital logic resources including Smart I/O for Boolean port-level operations and eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor control safety.
The clock system integrates multiple sources - 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO - feeding a PLL to generate the precise 48-MHz CPU clock; the CAN block supports time-triggered operation with dedicated message RAM and hardware filtering, meeting ISO 11898-1 requirements for deterministic automotive networking.
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. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader storage and runtime data buffering for multi-sensor systems. |
| CAPSENSE™ Performance | SNR > 5:1 with water tolerance - ensures reliable touch detection in humid or wet environments like automotive center consoles. |
| CAN Interface | CAN 2.0B + TTCAN - provides time-synchronized messaging for chassis control and ADAS coordination per ISO 11898-4. |
| Low-Power Mode | Deep Sleep at 2.5 µA with active analog - sustains capacitive wake-up and sensor monitoring without external supervision. |
| GPIO Count & Flexibility | Up to 54 pins, all reconfigurable for analog/digital/CAPSENSE™ - eliminates board redesign when signal routing changes during development. |
| ADC Resolution & Speed | 12-bit SAR, 1 Msps with channel sequencer and averaging - captures fast transients in battery monitoring or motor current sensing. |
Pinout & Package
The CY8C4146LQA-S273 is housed in a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, optimized for automotive PCB thermal management and EMI resilience.
| 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 analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, or SCB function - configured at runtime via firmware. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer interface | Hardwired to internal CAN controller; requires external CAN transceiver for bus coupling and fault protection. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz crystals for high-accuracy timing; essential for CAN bit timing and RTC synchronization. |
| WAKEUP / RESET | Asynchronous wake-up and reset control | Enables low-power event-driven startup from Deep Sleep using capacitive touch or CAN message interrupt. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and compensates for environmental drift in production. |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C/SPI/UART/LIN slave modes - reduces BOM count and simplifies firmware updates. |
| TTCAN Support | Time-triggered scheduling with guaranteed latency and jitter < 1 µs - meets ASIL-B timing requirements for brake-by-wire subsystems. |
| True Random Number Generator | On-chip TRNG compliant with NIST SP 800-90A - enables secure key generation for TLS handshake and firmware authentication. |
| Capacitive Sigma-Delta (CSD) | Dedicated CSD block delivers >5:1 SNR and water rejection - validated for IP67-rated human-machine interfaces in automotive cockpits. |
Applications
| Automotive Center Console | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Touch-sensitive climate and infotainment controls in harsh cabin environments with condensation and ESD exposure. IC Role / Device Role / Timing Role: Primary CAPSENSE™ controller with integrated analog front-end and CAN gateway for HMI-to-ECU command relay. Use Value: Eliminates external touch controller IC and level shifters; SmartSense maintains button responsiveness across temperature and humidity swings. | Use Scenario: Real-time torque assist calculation and motor phase control with fail-safe shutdown capability. IC Role / Device Role / Timing Role: Safety-critical MCU executing ASIL-B motor control algorithms while managing CAN-based vehicle network commands. Use Value: TTCAN ensures deterministic actuator response; TCPWM kill signals cut power within 100 ns upon fault detection. |
| Body Control Module (BCM) | Battery Management System (BMS) Sensor Node |
Use Scenario: Centralized lighting, door lock, and window lift control with LIN slave interoperability and low-quiescent-current sleep mode. IC Role / Device Role / Timing Role: LIN-compliant node processor with configurable GPIO driving relays and reading switches via internal comparators. Use Value: Single-chip solution replaces discrete logic + LIN transceiver; Deep Sleep current < 3 µA extends battery life during vehicle off-state. | Use Scenario: Cell voltage and temperature monitoring in 12S Li-ion packs with isolated CAN reporting to main BMS controller. IC Role / Device Role / Timing Role: Analog acquisition node performing 12-bit differential ADC sampling on up to 16 channels with hardware averaging. Use Value: On-die opamp buffering and IDACs enable precision ratiometric measurements without external signal conditioning circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147LQA-S473 | Same PSoC™ 4100S Plus family; 256 KB flash, 32 KB SRAM, identical peripherals and pinout. | Higher memory capacity required for complex OTA update stacks or dual-application partitioning. | Select when firmware size exceeds 128 KB or when future feature expansion is anticipated. |
| SPC560P50L5 | Power Architecture-based, 64 MHz, 512 KB flash, 64 KB RAM, no integrated CAPSENSE™, requires external touch controller. | Targeted at engine control and transmission applications with legacy AUTOSAR toolchain dependency. | Choose only if existing SPC5 ecosystem integration outweighs loss of on-die capacitive sensing and higher power consumption. |
Compared with CY8C4146LQA-S273, the CY8C4147LQA-S473 offers memory headroom without peripheral trade-offs, while the SPC560P50L5 sacrifices integrated analog flexibility for AUTOSAR compliance and higher compute throughput - making the former ideal for HMI evolution and the latter for powertrain legacy migration.
Availability
CY8C4146LQA-S273 is available at Aetrix Electronics and suitable for automotive center console HMI, electric power steering control, body control modules, and battery sensor nodes requiring stable component supply under AEC-Q100 Grade-S qualification.
Supply support for CY8C4146LQA-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 serving Tier-1 automotive suppliers.
The PSoC™ 4100S Plus product line targets cost-sensitive, safety-aware automotive applications requiring integrated capacitive sensing, CAN connectivity, and low-power operation - designed specifically for cockpit HMI, chassis control, and electrification subsystems.
FAQ
Is CY8C4146LQA-S273 qualified for automotive use?
Yes. It is AEC-Q100 qualified for Grade-S (–40°C to +105°C), with full documentation including stress test reports, failure analysis summaries, and reliability data published by Infineon. The qualification covers HTOL, TC, UHAST, and ESD testing per AEC standards.
Does it support CAN FD or only classical CAN?
CY8C4146LQA-S273 implements CAN 2.0B with TTCAN extensions but does not support CAN FD. Its CAN controller complies with ISO 11898-1:2015 for classical CAN at up to 1 Mbps, with hardware timestamping and message RAM for deterministic scheduling.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ CSD scanning can run autonomously in Deep Sleep mode using the internal ILO clock, consuming only 2.5 µA total system current while detecting touch events and generating interrupts to wake the CPU - verified in Infineon's AN85951 and device-specific TRM sections.
What development tools are officially supported?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator (v4.4) for firmware development. Hardware debugging requires MiniProg3 or KitProg3 programmers; the CY8CKIT-149 prototyping kit provides direct socket support for CY8C4146LQA-S273 in 48-pin QFN format.
CY8C4146LQA-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:
- 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-S273 FAQ
1.How can I place an order for CY8C4146LQA-S273 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-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 CY8C4146LQA-S273 reliable?
The price and inventory of CY8C4146LQA-S273 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S273 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S273?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S273 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S273?
CY8C4146LQA-S273 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-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 CY8C4146LQA-S273?
For technical support, including CY8C4146LQA-S273 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S273 requirements.
6.How does Aetrix verify that CY8C4146LQA-S273 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-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 CY8C4146LQA-S273 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S273?
All CY8C4146LQA-S273 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-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 CY8C4146LQA-S273 part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S273:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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