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Infineon Technologies CY8C4149LDSS543XQLA1
- Part No.:
- CY8C4149LDSS543XQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C4149LDSS543XQLA1.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 48VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
CY8C4149LDSS543XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Max microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 384 KB flash, 32 KB SRAM, integrated CAN FD (up to 5 Mbps), and multi-sense capacitive sensing (MSC) with >5:1 SNR. It targets body control modules, smart sensors, and automotive HMI systems requiring reconfigurable analog/digital peripherals and deep-sleep operation at 2.5 µA.
For engineers reviewing the CY8C4149LDSS543XQLA1 datasheet, CY8C4149LDSS543XQLA1 pinout, CY8C4149LDSS543XQLA1 application, or CY8C4149LDSS543XQLA1 equivalent, key selection factors include CAN FD timing compliance, MSC water-tolerance capability, Deep Sleep current spec, TCPWM kill-signal triggering for motor safety, and ModusToolbox™ API support for CAPSENSE™ tuning.
Technical Context
The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, with programmable analog blocks (CTBm opamps, SAR ADC, LP comparators) operating in Deep Sleep mode. Its clock system integrates ECO (4–33 MHz) + PLL for 48-MHz core clock, WCO (32 kHz), IMO (±2%), and ILO (40 kHz), enabling precise timing across sleep/wake transitions.
Digital reconfigurability is realized via five Serial Communication Blocks (SCBs) supporting runtime-switchable I²C/SPI/UART/LIN, eight TCPWM blocks with quadrature decode and comparator-triggered kill signals, and Smart I/O for Boolean logic on GPIOs - all coordinated by NVIC and MPU for automotive ASIL-B–capable partitioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables deterministic real-time control with Thumb-2 instruction set and NVIC-based interrupt handling. |
| Flash / SRAM | 384 KB flash with Read Accelerator; 32 KB SRAM - supports complex automotive firmware with fast code execution and data buffering for sensor fusion. |
| CAN FD Speed | Up to 5 Mbps - meets high-bandwidth diagnostics and domain controller communication requirements in modern vehicle networks. |
| SAR ADC | 12-bit, 1 Msps, differential/single-ended, with channel sequencer and signal averaging - delivers accurate analog sensor acquisition with noise suppression. |
| Deep Sleep Current | 2.5 µA digital system current - enables always-on wake-on-event functionality in battery-sensitive modules like door handles or seat occupancy sensors. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio with water tolerance - ensures reliable touch detection under condensation or wet conditions in automotive interiors. |
| GPIO Count | Up to 84 pins, all configurable as analog/digital/CAPSENSE™ - allows flexible PCB routing and multi-function pin reuse without external muxing. |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | Port 0 GPIO bank | Supports CAPSENSE™, analog input, UART TX/RX, I²C SDA/SCL, and PWM output - fully reconfigurable per application need. |
| TXD0 / RXD0 | SCB0 UART interface | Dedicated hardware UART pins with automatic flow control and LIN Slave mode - reduces CPU overhead in diagnostic communication. |
| CAN_TX / CAN_RX | CAN FD physical layer interface | Differential pair compliant with ISO 11898-2; supports bit rates up to 5 Mbps with built-in bus fault protection logic. |
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supply rails - enables mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor inputs). |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; accepts 100 ns minimum pulse width - ensures robust recovery from brown-out or EMI events. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold adjustment and maintains stable touch response across temperature/humidity shifts. |
| TCPWM kill-signal trigger | Comparator output directly gates PWM outputs within one clock cycle - critical for functional safety in motor drive overcurrent shutdown. |
| Crypto accelerator | Dedicated AES-128/256, SHA-256, TRNG, and CRC engines - offloads secure boot, OTA update verification, and key generation from CPU. |
| ModusToolbox™ PDL | Peripheral Driver Library provides standardized APIs for all fixed and programmable blocks - accelerates development of certified automotive software stacks. |
| Multi-domain clocking | Independent IMO, ILO, WCO, and ECO sources with dynamic switching - enables low-jitter timing for CAN FD while minimizing power in sleep states. |
Applications
| Body Control Module (BCM) | Automotive Touch HMI |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing CAN FD messaging, analog sensor monitoring (e.g., rain/light sensors), and PWM-driven actuator control. Use Value: Integrated TCPWM kill signals and Deep Sleep current <2.5 µA enable fail-safe actuation and ultra-low-power standby modes meeting OEM battery drain specs. | Use Scenario: Capacitive touch panel for center console or steering wheel controls in harsh environments (condensation, glove use). IC Role / Device Role / Timing Role: CAPSENSE™ master with MSC block performing real-time water rejection and proximity wake-up. Use Value: >5:1 SNR and SmartSense auto-tuning ensure consistent touch registration without recalibration across –40°C to +105°C and wet surface conditions. |
| Smart Seat Occupancy Sensor | Diagnostic Communication Gateway |
Use Scenario: Detecting occupant presence/position using embedded pressure or capacitance arrays in automotive seats. IC Role / Device Role / Timing Role: Analog front-end processor with 12-bit SAR ADC, temperature sensor, and programmable opamp gain stages. Use Value: On-chip opamps with Deep Sleep operation allow continuous low-power sensing; ADC averaging improves resolution for small capacitance changes. | Use Scenario: Translating UDS (ISO 14229) requests between high-speed CAN FD backbone and legacy UART-based ECUs. IC Role / Device Role / Timing Role: Protocol gateway MCU managing dual CAN FD and SCB-based UART interfaces with hardware CRC acceleration. Use Value: Five reconfigurable SCBs and crypto engine enable concurrent diagnostic sessions, message filtering, and secure session key exchange without host CPU intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144HAT0MLHT | ARM Cortex-M4F @ 112 MHz; includes Ethernet MAC but no integrated CAPSENSE™ or MSC block. | Targeted at gateway/routing functions with higher compute needs; lacks hardware-accelerated capacitive sensing. | Select when floating-point math or Ethernet connectivity is required; not suitable for touch-centric HMI designs. |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz; AEC-Q100 Grade 2 (–40°C to +105°C); no CAN FD, only CAN 2.0B. | Cost-optimized for simple body electronics; limited analog integration and no hardware crypto acceleration. | Choose for legacy CAN-only systems where CAPSENSE™ and security are not required. |
Compared with S32K144HAT0MLHT and RL78/F14, CY8C4149LDSS543XQLA1 uniquely combines CAN FD, MSC-based water-tolerant touch, and Deep Sleep current <2.5 µA - making it optimal for next-gen automotive HMI and low-power sensor nodes where reconfigurability and mixed-signal integration reduce BOM count.
Availability
CY8C4149LDSS543XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, touch-based human-machine interfaces, and smart occupancy sensing systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4149LDSS543XQLA1 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.
CY8C4149LDSS543XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for automotive applications demanding AEC-Q100 qualification, functional safety support, and integrated mixed-signal reconfigurability in space-constrained ECUs.
FAQ
What is the maximum operating temperature range for CY8C4149LDSS543XQLA1?
This part is qualified to AEC-Q100 Grade-S, with guaranteed operation from –40°C to +105°C ambient temperature. The specification is validated across full voltage and frequency ranges, including CAN FD communication and CAPSENSE™ functionality, per Infineon's automotive qualification test plan.
Does CY8C4149LDSS543XQLA1 support CAN FD with ISO 11898-1:2015 compliance?
Yes - the integrated CAN FD controller supports data rates up to 5 Mbps, ISO 11898-1:2015 frame format, and automatic bit-rate switching. Hardware features include error confinement, loopback self-test mode, and FIFO-based message buffering with priority arbitration.
Can all 84 GPIOs be used simultaneously for CAPSENSE™ sensing?
No - while any GPIO can be assigned to CAPSENSE™, the Multi-Sense Converter (MSC) block supports up to 32 simultaneous sensing channels. Channel count is constrained by internal MSC resources, not pin count; additional channels require time-multiplexed scanning.
Is ModusToolbox™ required to develop firmware for this device?
ModusToolbox™ is the recommended and fully supported IDE, providing PDL drivers, CAPSENSE™ Tuner, and CAN FD configuration tools. However, the device is Arm®-compliant and can be programmed using GCC-based toolchains (e.g., GNU Arm Embedded Toolchain) with appropriate startup files and linker scripts provided in Infineon's GitHub repositories.
CY8C4149LDSS543XQLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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, DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b 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:
CY8C4149LDSS543XQLA1 FAQ
1.How can I place an order for CY8C4149LDSS543XQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4149LDSS543XQLA1 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 CY8C4149LDSS543XQLA1 reliable?
The price and inventory of CY8C4149LDSS543XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4149LDSS543XQLA1 is usually 5 days.
3.What payment methods are accepted for CY8C4149LDSS543XQLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4149LDSS543XQLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4149LDSS543XQLA1?
CY8C4149LDSS543XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4149LDSS543XQLA1 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 CY8C4149LDSS543XQLA1?
For technical support, including CY8C4149LDSS543XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4149LDSS543XQLA1 requirements.
6.How does Aetrix verify that CY8C4149LDSS543XQLA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4149LDSS543XQLA1 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 CY8C4149LDSS543XQLA1 meets industry standards.
7.What is the process for return or replacement of CY8C4149LDSS543XQLA1?
All CY8C4149LDSS543XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4149LDSS543XQLA1, 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 CY8C4149LDSS543XQLA1 part is unused and in its original packaging.
Return procedure for CY8C4149LDSS543XQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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