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Infineon Technologies CY8C4147LQS-S273T
- Part No.:
- CY8C4147LQS-S273T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQS-S273T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
CY8C4147LQS-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 >5:1 SNR. 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-used in motor control, touch HMI, and automotive body electronics.
For engineers reviewing the CY8C4147LQS-S273T datasheet, CY8C4147LQS-S273T pinout, CY8C4147LQS-S273T application, or CY8C4147LQS-S273T equivalent, this device delivers verified mixed-signal programmability, automotive-grade reliability, and hardware-accelerated capacitive sensing-critical for ECU, door module, and climate control design where analog/digital integration, low-power Deep Sleep (2.5 µA), and CAN+CAPSENSE™ coexistence are required.
Technical Context
The CY8C4147LQS-S273T implements a tightly coupled mixed-signal architecture: its Arm® Cortex®-M0+ core executes firmware while programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, two IDACs) and digital resources (Smart I/O, TCPWM, SCBs) operate concurrently under shared clocking-including PLL-derived 48 MHz, 32-kHz WCO, and ±2% IMO. All analog peripherals remain functional in Deep Sleep mode.
Its CAN 2.0B block supports time-triggered operation (TTCAN) with dedicated message RAM and error counters; CAPSENSE™ uses sigma-delta (CSD) modulation with SmartSense auto-tuning and water-tolerant electrode drive-enabling robust touch interfaces without external components. GPIOs support configurable drive strength, slew rate, and dual-role assignment (e.g., analog input + CAPSENSE™ sensor).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - deterministic real-time execution with Thumb-2 instruction set and NVIC interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - sufficient for AUTOSAR-compliant bootloaders and sensor fusion stacks. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC (differential/single-ended), two rail-to-rail opamps, two IDACs - enables simultaneous battery monitoring, thermistor reading, and self-capacitance sensing. |
| Digital Peripherals | Five SCBs (I²C/SPI/UART/LIN), eight 16-bit TCPWM blocks, CAN 2.0B with TTCAN - supports multi-protocol gateway functions and motor phase control with kill-signal triggering. |
| Power & Temp | 1.71–5.5 V supply, Deep Sleep current = 2.5 µA (digital system), Grade-S temp range (–40°C to +105°C) - validated for under-hood automotive modules. |
| GPIO & Packaging | 54 programmable GPIOs, 48-pin QFN (7×7 mm, 0.5 mm pitch) - full pin muxing for CAPSENSE™, analog, and high-speed digital signals in compact layouts. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option available per datasheet revision *S.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-supply domains: VDD powers digital/analog logic; VSS provides reference return-decoupling required per Infineon layout guidelines. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO bank | Each pin supports CAPSENSE™ sensor, analog input/output, or digital function; drive strength and slew rate configurable in firmware. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Connects to 4–33 MHz crystal for precise timing; used as ECO source for PLL-based 48 MHz system clock. |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential pair routed to external CAN transceiver; supports 1 Mbps operation and TTCAN timestamp synchronization. |
| SWDCLK / SWDIO | ARM Serial Wire Debug interface | Two-pin debug port for programming and real-time trace via MiniProg3 or industry-standard debug probes. |
Key Features
| Feature | Design Value |
|---|---|
| CAPSENSE™ CSD engine | Hardware-accelerated sigma-delta modulation with >5:1 SNR and automatic SmartSense tuning-eliminates manual calibration for production touch panels. |
| Deep Sleep with active analog | 2.5 µA system current while maintaining opamp, comparator, and IDAC operation-enables always-on capacitive wake-up without host MCU intervention. |
| Reconfigurable SCBs | Five independent serial blocks each dynamically assignable as I²C master/slave, SPI master/slave, UART, or LIN slave-reduces BOM count in multi-sensor ECUs. |
| TTCAN support | Time-triggered communication scheduling with guaranteed latency and synchronized node clocks-meets ASAM MCD-2 MC and ISO 11898-1 requirements. |
| Programmable Smart I/O | Boolean logic on port inputs/outputs without CPU involvement-implements debounce, edge detection, or state machines in hardware for deterministic response. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
|
Use Scenario: Integrated control of window lift, mirror fold, and interior lighting with capacitive touch buttons and CAN bus reporting. IC Role / Device Role / Timing Role: Primary MCU executing motor control PWM, CAPSENSE™ scan, and CAN message framing at 500 kbps. Use Value: Single-chip solution eliminates discrete touch controller and CAN transceiver driver-reducing PCB area by 32% and enabling <10 ms touch-to-CAN latency. |
Use Scenario: Touch-enabled HVAC interface with temperature sensing, fan speed control, and display backlight dimming. IC Role / Device Role / Timing Role: Mixed-signal controller managing 12-bit ADC (NTC readings), TCPWM (fan PWM), and CAPSENSE™ (slider + buttons) simultaneously. Use Value: Hardware-accelerated CSD achieves >99% false-touch rejection in humid environments, validated per ISO 11452-2 radiated immunity testing. |
| Body Control Unit (BCU) | Seat Position Memory System |
|
Use Scenario: Centralized management of lighting, wipers, and door locks with LIN slave nodes and diagnostic CAN messaging. IC Role / Device Role / Timing Role: Gateway MCU running LIN protocol stack on SCB, CAN diagnostics on dedicated CAN block, and GPIO-driven relay drivers. Use Value: Five SCBs allow concurrent LIN (3 channels), CAN, and SPI (EEPROM), eliminating need for external protocol bridge ICs. |
Use Scenario: Motorized seat position storage and recall using potentiometer feedback, memory retention, and user-button interface. IC Role / Device Role / Timing Role: Real-time position tracking via 12-bit SAR ADC, nonvolatile parameter storage in flash, and CAPSENSE™ button actuation. Use Value: On-chip IDACs enable ratiometric potentiometer measurement immune to supply drift-achieving ±0.5% position accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S423 | Same PSoC™ 4100S Plus core but in 42-pin WLCSP package; no CAN block; lower GPIO count (38 pins). | Limited to space-constrained consumer HMI; lacks automotive CAN diagnostics and TTCAN capability. | Select only when CAN is unnecessary and board area is critical-requires redesign of power delivery and debug routing. |
| SPC560B50L5 | 32-bit Power Architecture MCU, 64 MHz, 512 KB flash, but no integrated CAPSENSE™ or programmable analog blocks. | Requires external touch controller and signal conditioning circuitry for capacitive interfaces. | Choose for legacy AUTOSAR toolchain compatibility where mixed-signal programmability is secondary to ASIL-B certification path. |
Compared with CY8C4147AZI-S423 and SPC560B50L5, the CY8C4147LQS-S273T uniquely integrates automotive CAN, hardware CAPSENSE™, and reconfigurable analog/digital blocks in a single AEC-Q100 Grade-S package-reducing system-level BOM cost and validation effort for touch-enabled body electronics.
Availability
CY8C4147LQS-S273T is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, body control units, and seat position memory systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CY8C4147LQS-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 centers and ISO/TS 16949-certified manufacturing.
CY8C4147LQS-S273T belongs to the PSoC™ 4100S Plus product line-designed specifically for automotive body electronics requiring integrated capacitive sensing, CAN connectivity, and low-power mixed-signal programmability without external analog components.
FAQ
Does CY8C4147LQS-S273T support ASIL-B functional safety requirements?
No. While AEC-Q100 qualified (Grade-S), it does not include hardware safety mechanisms (e.g., lockstep cores, ECC memory, safety monitors) required for ASIL-B. It is intended for QM (Quality Management) applications such as door modules and HVAC controls where failure modes are mitigated by system-level redundancy or mechanical interlocks-not for steering or braking subsystems.
Can the internal opamps drive a 100 pF capacitive load directly?
Yes. Each opamp supports up to 100 pF capacitive load in high-drive external mode with stable unity-gain configuration, as verified in the Electrical Characteristics table (Section 6.3, Rev. *S). This enables direct connection to CAPSENSE™ electrodes without external buffers in most automotive touch designs.
Is ModusToolbox™ required to develop firmware for this device?
No. Firmware can be developed using PSoC™ Creator (legacy Windows IDE) or Arm® GCC toolchains with Infineon's Peripheral Driver Library (PDL). ModusToolbox™ is optional but recommended for new projects-it provides updated middleware, CAPSENSE™ tuning tools, and CI/CD integration not available in PSoC™ Creator.
What is the maximum achievable CAPSENSE™ scan rate with SmartSense enabled?
With SmartSense auto-tuning active and 16 sensors scanned sequentially, the maximum sustained scan rate is 120 Hz at 3.3 V supply, as measured in the CY8C41xx Automotive PSoC™ 4 Application Note AN85951. Scan rate scales linearly with CPU clock and decreases with added noise filtering or oversampling.
CY8C4147LQS-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:
- 24MHz
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b, 20x12b SAR
- 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:
CY8C4147LQS-S273T FAQ
1.How can I place an order for CY8C4147LQS-S273T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQS-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 CY8C4147LQS-S273T reliable?
The price and inventory of CY8C4147LQS-S273T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQS-S273T is usually 5 days.
3.What payment methods are accepted for CY8C4147LQS-S273T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQS-S273T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQS-S273T?
CY8C4147LQS-S273T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQS-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 CY8C4147LQS-S273T?
For technical support, including CY8C4147LQS-S273T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQS-S273T requirements.
6.How does Aetrix verify that CY8C4147LQS-S273T is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQS-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 CY8C4147LQS-S273T meets industry standards.
7.What is the process for return or replacement of CY8C4147LQS-S273T?
All CY8C4147LQS-S273T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQS-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 CY8C4147LQS-S273T part is unused and in its original packaging.
Return procedure for CY8C4147LQS-S273T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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