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Infineon Technologies CY8C4149LDAS543XQLA1
- Part No.:
- CY8C4149LDAS543XQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C4149LDAS543XQLA1.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 48VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,483
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Product details
Overview
CY8C4149LDAS543XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Max microcontroller based on Arm® Cortex®-M0+ CPU, featuring 48 MHz operation, 384 KB flash, 32 KB SRAM, CAN FD up to 5 Mbps, and integrated CAPSENSE™ MSC with >5:1 SNR for robust capacitive touch in harsh environments - deployed in automotive body control modules and infotainment HMI systems.
For engineers reviewing the CY8C4149LDAS543XQLA1 datasheet, CY8C4149LDAS543XQLA1 pinout, CY8C4149LDAS543XQLA1 application, or CY8C4149LDAS543XQLA1 equivalent, key selection criteria include CAN FD timing compliance, Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1 Msps), opamp low-power operation in Deep Sleep, and GPIO flexibility (up to 84 pins, any configurable for analog/digital/CAPSENSE™).
Technical Context
The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core, 5 reconfigurable Serial Communication Blocks (SCBs), and a dedicated CAN FD controller supporting ISO 11898-1:2015 with bit rates up to 5 Mbps. Its clock system includes ECO (4–33 MHz), PLL (generating 48 MHz), WCO (32 kHz), and dual internal oscillators (IMO ±2%, ILO 40 kHz).
Analog subsystem comprises two CTBm opamps (reconfigurable drive modes, Deep Sleep capable), a 12-bit SAR ADC with differential/single-ended inputs and hardware sequencer, two low-power comparators, and a multi-sense converter (MSC) block enabling CAPSENSE™ with SmartSense auto-tuning and water tolerance - all accessible via programmable GPIO routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control in automotive ECUs without external co-processors. |
| Flash / SRAM | 384 KB flash with Read Accelerator; 32 KB SRAM - supports complex firmware including CAN FD stack, CAPSENSE™ tuning, and sensor fusion logic. |
| CAN FD Speed | Up to 5 Mbps data phase - meets high-bandwidth requirements for ADAS domain controllers and gateway nodes. |
| SAR ADC | 12-bit, 1 Msps, differential mode, hardware channel sequencer - allows synchronized sampling of multiple sensors (e.g., temperature, voltage, position) with signal averaging. |
| Deep Sleep Current | 2.5 µA digital system current - enables always-on wake-on-touch or wake-on-CAN functionality in battery-sensitive modules. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under condensation, glove use, or EMI-rich automotive cabins. |
| GPIO Count | Up to 84 pins, all configurable for analog input, digital I/O, CAPSENSE™, or LCD segment drive - eliminates need for external glue logic in HMI designs. |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and instrument cluster applications per AEC-Q100 Rev G. |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option enabled for automated optical inspection (AOI) in automotive SMT lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO7 | I/O power domains | Eight independent 1.71–5.5 V I/O banks - enable mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor interface). |
| P0.0–P9.7 | Programmable GPIOs | All pins support CAPSENSE™, analog input, SCB functions, or TCPWM - no fixed-function pin constraints. |
| CANFD_TX / CANFD_RX | Dedicated CAN FD transceiver interface | Hardwired to CAN FD block; supports recessive-dominant signaling and loopback self-test without external PHY. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz ECO; required for precise CAN FD timing and clock synchronization across network nodes. |
| SWD_CLK / SWD_IO | ARM Serial Wire Debug interface | Two-pin debug port - enables in-circuit programming and real-time trace without disrupting CAN or SCB signals. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Crypto Accelerator | AES-128/256, SHA-256, TRNG, CRC - offloads secure boot, OTA update verification, and key derivation from CPU, reducing latency by >90% vs. software-only implementation. |
| Smart I/O Block | Boolean logic engine per port - implements debounce, edge detection, or state machines directly in I/O fabric, freeing CPU cycles for higher-layer tasks. |
| Automatic CAPSENSE™ Tuning (SmartSense) | Runtime calibration without host intervention - adapts baseline and sensitivity to environmental drift (e.g., humidity, temperature), eliminating manual tuning in production test. |
| Programmable Analog Routing | Any GPIO can route to SAR ADC input, opamp output, or comparator reference - enables flexible sensor front-end design without PCB redesign. |
| LCD Segment Drive | Direct drive of up to 40 segments from GPIOs - reduces BOM cost by removing external LCD driver IC in instrument cluster displays. |
Applications
| Automotive Body Control Module (BCM) | Infotainment Touch Interface |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifters with LIN/CAN communication. IC Role / Device Role / Timing Role: Main MCU executing application logic, managing CAN FD gateway traffic, and monitoring analog sensor inputs (e.g., ambient light, rain detection). Use Value: Deep Sleep current (2.5 µA) enables always-on wake-on-keypress; 84 GPIOs consolidate discrete I/O expanders; CAN FD supports firmware updates at 5 Mbps. | Use Scenario: Capacitive touch panel for center console with gesture recognition and water tolerance. IC Role / Device Role / Timing Role: CAPSENSE™ controller with MSC block performing real-time noise filtering and SmartSense auto-calibration. Use Value: >5:1 SNR ensures reliable operation under condensation; programmable opamp gain stages optimize signal chain for varying electrode geometries. |
| Instrument Cluster Display Driver | Automotive Gateway Node |
Use Scenario: Driving analog gauges and segmented LCD display in digital instrument clusters. IC Role / Device Role / Timing Role: LCD segment driver with PWM-controlled backlight dimming and real-time analog gauge rendering via TCPWM timers. Use Value: Integrated LCD drive eliminates external driver IC; 16-bit TCPWM blocks generate precise 100+ Hz refresh rates with center-aligned PWM for flicker-free visuals. | Use Scenario: Protocol translation between CAN FD backbone and legacy CAN/LIN subnets in vehicle networks. IC Role / Device Role / Timing Role: Dual-CAN FD node with hardware message filtering, store-and-forward buffering, and time-triggered scheduling. Use Value: Hardware-accelerated CRC and timestamping ensure deterministic latency (<5 µs) for safety-critical gateway arbitration and diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | ARM Cortex-M4F core, 112 MHz; includes Ethernet MAC but no integrated CAPSENSE™ or LCD drive. | Better suited for motor control with FPU; lacks native capacitive touch and segment LCD support. | Select when floating-point math or Ethernet connectivity is required over touch/HMI integration. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; AEC-Q100 Grade-2 (–40°C to +105°C); no CAN FD, only classical CAN 2.0B. | Lower cost for basic BCM functions; insufficient bandwidth for OTA updates or ADAS sensor fusion. | Select for cost-sensitive entry-level body electronics where 5 Mbps CAN FD and CAPSENSE™ are not needed. |
Compared with S32K144W and RL78/F14, CY8C4149LDAS543XQLA1 uniquely combines CAN FD, CAPSENSE™ with SmartSense, and LCD segment drive in a single AEC-Q100 Grade-S package - reducing BOM count and software complexity for HMI-integrated automotive ECUs.
Availability
CY8C4149LDAS543XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment touch interfaces, instrument cluster displays, and gateway nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4149LDAS543XQLA1 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 solutions - serving Tier-1 suppliers and OEMs globally with AEC-Q100-qualified components.
CY8C4149LDAS543XQLA1 belongs to the PSoC™ 4100S Max product line, engineered specifically for automotive human-machine interface (HMI) and domain-control applications demanding integrated analog sensing, robust communication, and functional safety readiness.
FAQ
Does CY8C4149LDAS543XQLA1 support CAN FD ISO 11898-1:2015 conformance?
Yes. The integrated CAN FD block complies with ISO 11898-1:2015, supporting data rates up to 5 Mbps in the data phase, CRC-17 for classic frames and CRC-21 for FD frames, and automatic bit rate switching. It passes conformance testing per CAN FD specification using built-in loopback and error frame injection features.
What is the maximum number of CAPSENSE™ buttons supported on this device?
The CY8C4149LDAS543XQLA1 supports up to 64 CAPSENSE™ buttons using its Multi-Sense Converter (MSC) block and SmartSense auto-tuning. Button count depends on electrode layout and scan time budget; typical implementations achieve 48–64 buttons with <100 ms full-panel scan at >5:1 SNR in automotive cabin conditions.
Can the SAR ADC operate during Deep Sleep mode?
No. While the SAR ADC itself cannot convert in Deep Sleep, its reference voltage and input multiplexer remain powered, and the device supports wake-on-analog-threshold events using the two low-power comparators - which do operate in Deep Sleep at 2.5 µA system current. ADC conversion resumes upon wake-up.
Is ModusToolbox™ required for development, or does it support third-party IDEs?
ModusToolbox™ is recommended but not mandatory. The device supports Arm®-compliant toolchains including Keil MDK, IAR Embedded Workbench, and GCC-based builds. Peripheral Driver Libraries (PDL) and HAL APIs are provided in source form, enabling integration into custom build systems while retaining full access to programmable analog/digital blocks and CAPSENSE™ middleware.
CY8C4149LDAS543XQLA1 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 ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4149LDAS543XQLA1 FAQ
1.How can I place an order for CY8C4149LDAS543XQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4149LDAS543XQLA1 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 CY8C4149LDAS543XQLA1 reliable?
The price and inventory of CY8C4149LDAS543XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4149LDAS543XQLA1 is usually 5 days.
3.What payment methods are accepted for CY8C4149LDAS543XQLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4149LDAS543XQLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4149LDAS543XQLA1?
CY8C4149LDAS543XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4149LDAS543XQLA1 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 CY8C4149LDAS543XQLA1?
For technical support, including CY8C4149LDAS543XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4149LDAS543XQLA1 requirements.
6.How does Aetrix verify that CY8C4149LDAS543XQLA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4149LDAS543XQLA1 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 CY8C4149LDAS543XQLA1 meets industry standards.
7.What is the process for return or replacement of CY8C4149LDAS543XQLA1?
All CY8C4149LDAS543XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4149LDAS543XQLA1, 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 CY8C4149LDAS543XQLA1 part is unused and in its original packaging.
Return procedure for CY8C4149LDAS543XQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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