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Infineon Technologies CY8C4147LQE-S243T
- Part No.:
- CY8C4147LQE-S243T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4147LQE-S243T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,986
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Product details
Overview
CY8C4147LQE-S243T 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 >5:1 SNR. It includes a CAN 2.0B block with TTCAN support, five reconfigurable SCBs (I²C/SPI/UART/LIN), and eight TCPWM blocks-used in motor control, touch HMI, and body electronics systems.
For engineers reviewing the CY8C4147LQE-S243T datasheet, CY8C4147LQE-S243T pinout, CY8C4147LQE-S243T application, or CY8C4147LQE-S243T 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, and programmable analog/digital routing for mixed-signal system integration.
Technical Context
This device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core coordinates programmable analog blocks (two opamps, 12-bit SAR ADC, two IDACs), digital logic (Smart I/O, TCPWM, SCBs), and dedicated peripherals including a CAN 2.0B controller with TTCAN timing compliance and CAPSENSE™ CSD engine with hardware-accelerated SmartSense tuning.
The clock system combines a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO, feeding a PLL to generate the precise 48-MHz CPU clock; all analog and digital resources-including comparators and opamps-remain operational in Deep Sleep mode at 2.5 µA system current.
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. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports firmware updates and runtime data buffering for automotive control loops. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interface with 3.3 V and 5 V automotive subsystems without level-shifting. |
| CAN Interface | CAN 2.0B with TTCAN support - provides synchronized message transmission for safety-critical chassis and powertrain communication. |
| Capacitive Sensing | CAPSENSE™ CSD with >5:1 SNR and SmartSense auto-tuning - delivers robust touch detection under wet conditions and varying environmental noise. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - enables high-fidelity sensor acquisition for temperature, pressure, or position feedback. |
| Deep Sleep Current | 2.5 µA digital system current - sustains CAN wake-up, RTC, and analog monitoring while minimizing battery drain in always-on modules. |
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 and noise isolation. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 48 pins support CAPSENSE™, analog input/output, digital logic, or serial communication functions via hardware routing. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer I/O | Hardwired to internal CAN controller; require external transceiver for bus termination and differential signaling. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for high-accuracy timing; essential for CAN bit timing and USB-free synchronous communication. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Provides low-power, temperature-stable timebase for RTC and Deep Sleep wake-up events. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B with TTCAN | Enables deterministic, time-synchronized messaging for ASIL-B–capable vehicle networks without external CAN controller. |
| Hardware-accelerated CAPSENSE™ CSD | Delivers >5:1 SNR and water tolerance using sigma-delta modulation and on-die capacitance measurement-no external components required. |
| Programmable analog blocks (CTB) | Two reconfigurable opamps operate in Deep Sleep mode and support ADC input buffering, comparator, or high-drive external output configurations. |
| Five reconfigurable SCBs | Each SCB can be independently assigned as I²C master/slave, SPI master/slave, UART, or LIN slave-reducing BOM count and PCB footprint. |
| Eight TCPWM blocks | Support center-aligned PWM, quadrature decoding, and comparator-triggered kill signals-critical for motor gate driver safety interlocks. |
Applications
| Automotive Body Control Module (BCM) | Touch-Based Center Console HMI |
|---|---|
Use Scenario: Centralized control of door locks, lighting, window lifts, and mirror adjustment in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing real-time control tasks, managing LIN/CAN gateway functions, and monitoring discrete inputs via programmable GPIOs. Use Value: Integrated CAN 2.0B with TTCAN ensures synchronized actuator commands; Deep Sleep mode reduces parasitic drain during vehicle off-state. | Use Scenario: Capacitive touch panel for infotainment and climate controls with wet-hand and glove operation support. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ CSD engine with SmartSense auto-tuning performs real-time electrode scanning and noise rejection. Use Value: >5:1 SNR and hardware-accelerated baseline tracking eliminate false touches in humid or condensing environments. |
| Electric Power Steering (EPS) Sensor Interface | Onboard Charger (OBC) Control Unit |
Use Scenario: Acquisition and preprocessing of torque, angle, and motor current sensor data in EPS systems. IC Role / Device Role / Timing Role: High-precision analog front-end with 12-bit 1-Msps SAR ADC, opamp buffering, and DMA-driven data streaming to CPU. Use Value: Channel sequencer with signal averaging improves resolution beyond 12 bits for torque estimation accuracy. | Use Scenario: Control logic and protection monitoring for AC/DC conversion stages in EV onboard chargers. IC Role / Device Role / Timing Role: Real-time PWM generation (via TCPWM), CAN communication with BMS, and fault detection using low-power comparators in Deep Sleep. Use Value: Comparator-triggered kill signals disable gate drivers within nanoseconds upon overcurrent detection-meeting ISO 26262 ASIL-B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144HAT0MLHT | ARM Cortex-M4F core, 112 MHz, 1 MB flash, no integrated CAPSENSE™, includes Ethernet MAC | Better suited for gateway or ADAS-adjacent control; lacks hardware touch engine and requires external touch controller | Select when higher compute throughput or Ethernet connectivity is required over capacitive sensing integration. |
| Renesas RL78/F14 | RL78 core, 32 MHz, 512 KB flash, CAN 2.0B only (no TTCAN), no programmable analog blocks | Lower-cost option for basic CAN node control; no on-chip sigma-delta sensing or opamp resources | Select for cost-sensitive, non-touch, non-safety-critical body electronics with minimal analog signal conditioning needs. |
Compared with S32K144HAT0MLHT and RL78/F14, CY8C4147LQE-S243T uniquely integrates CAPSENSE™ CSD, programmable analog blocks, and TTCAN in a single AEC-Q100 Grade-S package-reducing component count and enabling compact, high-SNR touch + CAN control nodes.
Availability
CY8C4147LQE-S243T is available at Aetrix Electronics and suitable for automotive body control modules, touch-based HMIs, electric power steering interfaces, and onboard charger control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4147LQE-S243T 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, radar sensors, and security ICs, with global manufacturing and R&D infrastructure.
The PSoC™ 4100S Plus product line targets automotive-grade mixed-signal control applications requiring integrated capacitive sensing, CAN communication, and ultra-low-power operation across –40°C to +105°C ambient conditions.
FAQ
Does CY8C4147LQE-S243T support CAN FD?
No. This device implements CAN 2.0B with time-triggered capability (TTCAN) but does not support CAN FD data rates or extended frame formats. Its CAN controller complies with ISO 11898-1:2015 for classical CAN only, with bit rates up to 1 Mbps and hardware timestamping for deterministic scheduling.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator v4.4 for firmware development. Hardware debugging requires a KitProg3 or MiniProg4 programmer/debugger; the CY8CKIT-149 prototyping kit provides full pin access and CAPSENSE™ evaluation capability.
Is the 12-bit SAR ADC capable of simultaneous sampling?
No. The SAR ADC uses a single conversion core with a channel sequencer that supports automatic scanning across up to 16 inputs, but it does not provide true simultaneous sampling. Signal averaging across sequential conversions is supported to improve effective resolution for slow-varying sensor signals.
How is CAPSENSE™ performance validated for AEC-Q100 compliance?
CAPSENSE™ CSD functionality was validated as part of the full device AEC-Q100 Grade-S qualification (–40°C to +105°C), including SNR testing under temperature cycling, humidity exposure, and conducted RF immunity per ISO 11452-4. SmartSense auto-tuning maintains baseline stability across voltage and temperature drift without recalibration.
CY8C4147LQE-S243T 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:
- 24MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4147LQE-S243T FAQ
1.How can I place an order for CY8C4147LQE-S243T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LQE-S243T 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 CY8C4147LQE-S243T reliable?
The price and inventory of CY8C4147LQE-S243T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQE-S243T is usually 5 days.
3.What payment methods are accepted for CY8C4147LQE-S243T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQE-S243T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LQE-S243T?
CY8C4147LQE-S243T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LQE-S243T 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 CY8C4147LQE-S243T?
For technical support, including CY8C4147LQE-S243T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQE-S243T requirements.
6.How does Aetrix verify that CY8C4147LQE-S243T is sourced from the original manufacturer or authorized distributors?
All CY8C4147LQE-S243T 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 CY8C4147LQE-S243T meets industry standards.
7.What is the process for return or replacement of CY8C4147LQE-S243T?
All CY8C4147LQE-S243T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQE-S243T, 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 CY8C4147LQE-S243T part is unused and in its original packaging.
Return procedure for CY8C4147LQE-S243T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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