My Inquiry
My Account
Infineon Technologies CY8C4147LQA-S243
- Part No.:
- CY8C4147LQA-S243
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQA-S243.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,480
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4147LQA-S243 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 touch-sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCB), CAN 2.0B with TTCAN support, and eight TCPWM modules-enabling use in automotive body control modules requiring robust touch HMI and real-time bus communication.
For engineers reviewing the CY8C4147LQA-S243 datasheet, CY8C4147LQA-S243 pinout, CY8C4147LQA-S243 application, or CY8C4147LQA-S243 equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-chip CAN 2.0B + TTCAN, Deep Sleep current of 2.5 µA, 12-bit 1-Msps SAR ADC with sequencer, and programmable analog/digital routing for mixed-signal system integration.
Technical Context
The device implements a tightly coupled MCU subsystem with dual-clock domain operation: the IMO (±2%) and PLL-derived 48-MHz core clock feed the CPU and digital peripherals, while independent low-power oscillators (ILO, WCO) sustain RTC and Deep Sleep functions. Its analog subsystem integrates two opamps with ADC input buffering and comparator modes, plus a dedicated capacitance-sensing block delivering >5:1 SNR via CSD architecture.
Digital flexibility stems from Smart I/O logic blocks enabling Boolean operations on GPIOs without CPU intervention, and eight TCPWM units supporting quadrature decoding, center-aligned PWM, and comparator-triggered kill signals-critical for motor control safety in automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables deterministic real-time execution for automotive control loops. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader, firmware updates, and sensor fusion buffers. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with averaging - delivers high-resolution analog sensing for battery monitoring or cabin environment sensors. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SmartSense auto-tuning - achieves water-tolerant touch detection without manual calibration. |
| CAN Interface | CAN 2.0B with time-triggered CAN (TTCAN) support - meets ISO 11898-1 for deterministic message scheduling in distributed vehicle networks. |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - sustains capacitive wake-up and low-power sensor polling without external supervision. |
| GPIO Count | Up to 54 programmable pins across packages - any pin supports CAPSENSE™, analog, or digital functions with configurable drive strength/slew rate. |
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 power supply domains | Independent 1.71–5.5 V domains per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor interface). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIOs | Each pin supports CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - routed automatically by PSoC™ Creator. |
| XTAL_IN/XTAL_OUT | External crystal oscillator inputs | Supports 4–33 MHz ECO for precise timing; required for CAN bit-rate accuracy and USB-free clock synchronization. |
| CAN_TX/CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY (e.g., TJA1042); supports TTCAN timestamping and error confinement. |
| WAKEUP[0]–WAKEUP[3] | Deep Sleep wake sources | Hardware-level wake triggers from CAPSENSE™, comparators, or GPIO edges - no CPU polling needed. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Eliminates manual CAPSENSE™ calibration during production and field operation - reduces BOM cost by removing external trim components. |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C/SPI/UART/LIN slave modes at runtime - simplifies multi-protocol gateway design without hardware changes. |
| TCPWM kill signal | Hardware comparator output directly disables PWM outputs within one clock cycle - meets ASIL-B functional safety requirements for motor drivers. |
| True RNG (TRNG) | Provides entropy source for cryptographic key generation in secure boot and OTA update authentication - compliant with NIST SP 800-90B. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door handle and window switch with proximity wake-up and LIN communication to body controller. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ gesture recognition, LIN slave protocol stack, and PWM-controlled LED backlight dimming. Use Value: Single-chip integration replaces discrete touch controller + MCU + LIN transceiver - reduces PCB area by 35% and eliminates inter-chip timing skew. | Use Scenario: HVAC control panel with slider-based temperature adjustment, fan speed control, and ambient light sensing. IC Role / Device Role / Timing Role: System-on-chip managing resistive/capacitive touch sliders, 12-bit ADC for thermistor readings, and TCPWM for brushless fan motor control. Use Value: On-chip opamp buffering and ADC averaging improve temperature measurement resolution to ±0.2°C over –40°C to +105°C range. |
| Steering Wheel Touch Interface | Seat Position Memory System |
Use Scenario: Water-tolerant multimedia control buttons embedded in leather-wrapped steering wheel with haptic feedback. IC Role / Device Role / Timing Role: CAPSENSE™ CSD front-end with SmartSense, CAN 2.0B master node transmitting button events and haptic trigger commands. Use Value: >5:1 SNR ensures reliable operation under condensation and sweat - validated per ISO 10605 ESD and IEC 61000-4-2 Level 4. | Use Scenario: Motorized seat position memory with potentiometer feedback, EEPROM-backed profile storage, and CAN-linked seat heater control. IC Role / Device Role / Timing Role: Real-time position tracking via 12-bit ADC sampling, nonvolatile storage using flash emulated EEPROM, and CAN message arbitration for multi-seat coordination. Use Value: Flash Read Accelerator enables sub-10 µs ADC-to-CAN latency - critical for synchronized multi-axis seat movement without jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S423 | Same PSoC™ 4100S Plus core but in 64-pin TQFP package; lacks CAN block; higher GPIO count (54 vs 48). | Suitable for non-CAN applications requiring more GPIOs and larger PCB footprint tolerance. | Select when CAN is unnecessary and board layout favors TQFP over QFN. |
| SPC560B50L5 | 32-bit Power Architecture MCU; 64 MHz; 512 KB flash; no integrated CAPSENSE™; requires external touch controller. | Targeted at engine control units where analog/mixed-signal integration is secondary to computational throughput. | Select only if legacy Power Architecture toolchain compatibility is mandatory and touch integration is handled externally. |
Compared with CY8C4147AZI-S423 and SPC560B50L5, CY8C4147LQA-S243 uniquely combines AEC-Q100 Grade-S qualification, on-die CAN 2.0B+TTCAN, and production-ready CAPSENSE™ - eliminating external components and reducing system-level validation effort for automotive HMI designs.
Availability
CY8C4147LQA-S243 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment HMI, and chassis control systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CY8C4147LQA-S243 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4147LQA-S243 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive-grade human-machine interfaces requiring integrated capacitive sensing, CAN connectivity, and ultra-low-power operation across extended temperature ranges.
FAQ
Does CY8C4147LQA-S243 support CAN FD?
No. The integrated CAN block complies strictly with ISO 11898-1:2015 for CAN 2.0B and time-triggered CAN (TTCAN). It does not implement CAN FD data-rate arbitration or flexible data-length frames. For CAN FD, consider Infineon's AURIX™ TC3xx family or external CAN FD transceivers with software-managed protocol layers.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ 3.x and PSoC™ Creator 4.4 for CY8C4147LQA-S243. ModusToolbox™ provides Eclipse-based IDE, Peripheral Driver Library (PDL), and CAPSENSE™ middleware; PSoC™ Creator offers schematic-driven design with automatic analog/digital routing. Both support debug via KitProg3 and MiniProg3 programmers.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No. The SAR ADC uses a single conversion core with a channel sequencer that supports automated scanning and signal averaging, but it does not provide true simultaneous sampling. For synchronized multi-channel acquisition, external analog front-ends or time-interleaved sampling with precise trigger alignment must be implemented in firmware.
How is flash endurance specified for firmware updates in automotive duty cycles?
Infineon specifies 100,000 write/erase cycles for flash memory under AEC-Q100 Grade-S conditions (–40°C to +105°C). Field firmware updates are supported using flash emulation techniques and wear-leveling algorithms provided in the PDL library - validated for 15-year automotive service life with ≤100 OTA updates per year.
CY8C4147LQA-S243 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:
- 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 ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4147LQA-S243 FAQ
1.How can I place an order for CY8C4147LQA-S243 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQA-S243 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 CY8C4147LQA-S243 reliable?
The price and inventory of CY8C4147LQA-S243 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQA-S243 is usually 5 days.
3.What payment methods are accepted for CY8C4147LQA-S243?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQA-S243 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQA-S243?
CY8C4147LQA-S243 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQA-S243 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 CY8C4147LQA-S243?
For technical support, including CY8C4147LQA-S243 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQA-S243 requirements.
6.How does Aetrix verify that CY8C4147LQA-S243 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQA-S243 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 CY8C4147LQA-S243 meets industry standards.
7.What is the process for return or replacement of CY8C4147LQA-S243?
All CY8C4147LQA-S243 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQA-S243, 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 CY8C4147LQA-S243 part is unused and in its original packaging.
Return procedure for CY8C4147LQA-S243:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4147LQA-S243 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
Machine vision system guide covering components, inspection workflow, camera and lens selection, FOV, pixel resolution, motion blur, strobe lighting, bandwidth, 2D/3D vision, integration, troubleshooti…
