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Infineon Technologies CY8C4148LDSS543XQLA1
- Part No.:
- CY8C4148LDSS543XQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C4148LDSS543XQLA1.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,725
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Product details
Overview
CY8C4148LDSS543XQLA1 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™ with SmartSense auto-tuning. It targets body control modules, smart sensors, and automotive HMI systems requiring robust capacitive touch in harsh environments.
For engineers reviewing the CY8C4148LDSS543XQLA1 datasheet, CY8C4148LDSS543XQLA1 pinout, CY8C4148LDSS543XQLA1 application, or CY8C4148LDSS543XQLA1 equivalent, key selection criteria include CAN FD timing compliance, Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1 Msps), MSC SNR (>5:1), and GPIO reconfigurability across analog/digital/CAPSENSE™ functions.
Technical Context
The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core, 5 reconfigurable Serial Communication Blocks (SCBs), and dedicated CAN FD controller with bit-rate switching support up to 5 Mbps. Its analog subsystem includes two opamps with Deep Sleep operation, a 12-bit SAR ADC with temperature sensor and channel sequencer, and dual low-power comparators - all accessible via any of 84 GPIOs.
Digital flexibility is enabled by eight 16-bit TCPWM blocks supporting center-aligned PWM and quadrature decoding, programmable Smart I/O for Boolean logic on port signals, and hardware-accelerated cryptography (AES, SHA, TRNG). Clocking combines ECO+PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO (40 kHz) for precise timing across sleep/wake transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with Thumb-2 instruction set and NVIC interrupt handling. |
| Memory | 384 KB flash with Read Accelerator + 32 KB SRAM - supports complex firmware with fast code execution and data buffering for sensor fusion. |
| CAN FD | Up to 5 Mbps data phase - meets high-bandwidth automotive network requirements for ADAS sensor aggregation and gateway routing. |
| SAR ADC | 12-bit, 1 Msps, differential/single-ended, integrated temperature sensor - provides accurate analog sensing for battery monitoring and thermal management. |
| CAPSENSE™ MSC | Multi-sense converter with >5:1 SNR and water tolerance - delivers reliable touch detection in wet or noisy automotive cabin environments. |
| Power Modes | Deep Sleep at 2.5 µA digital current with operational analog - extends battery life in always-on vehicle entry and occupancy detection systems. |
| GPIO Count | 84 programmable pins, all configurable as CAPSENSE™/analog/digital - simplifies PCB layout and enables multi-function pin reuse in space-constrained ECUs. |
Pinout & Package
CY8C4148LDSS543XQLA1 is housed in a 100-pin TQFP package (14 mm × 14 mm, 0.5 mm pitch) with wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | Port 0 GPIO bank | Supports CAPSENSE™, analog input, UART TX/RX, and PWM output - enables flexible peripheral mapping without external muxing. |
| P1[0]–P1[7] | Port 1 GPIO bank | Configurable for I2C SCL/SDA, SPI MISO/MOSI/SS, CAN FD RX/TX, and LCD segment drive - consolidates communication and display interfaces. |
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies allow mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor inputs). |
| VDDD/VDDA | Digital/analog core supplies | Separate 1.71–5.5 V rails isolate noise-sensitive analog circuits (ADC, opamps) from digital switching transients. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - ensures safe initialization during power ramp-up or brown-out events. |
| SWDCK/SWDIO | ARM Serial Wire Debug | Two-pin debug interface supporting full-speed programming, real-time trace, and non-intrusive breakpoint debugging in production firmware. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and maintains touch sensitivity across temperature/humidity drift. |
| Programmable Smart I/O | Boolean logic (AND/OR/XOR) applied directly to GPIO signals in hardware - offloads simple decision logic from CPU and reduces interrupt latency. |
| Crypto accelerator | Dedicated AES-128/256, SHA-256, TRNG, and CRC engines - enables secure OTA updates and cryptographic key generation without software overhead. |
| Reconfigurable SCBs | Five serial blocks dynamically assigned as I2C/SPI/UART/LIN Slave - allows runtime protocol switching and reduces BOM count in multi-interface ECUs. |
| Deep Sleep analog retention | Opamps, comparators, and MSC remain active at 2.5 µA system current - enables continuous capacitive wake-up detection without CPU intervention. |
Applications
| Body Control Module (BCM) | Automotive Occupancy Detection |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing CAN FD communication with gateway, managing GPIO-driven actuators, and processing LIN-slave commands. Use Value: Integrated CAN FD (5 Mbps) and 84 GPIOs reduce external transceivers and level shifters; Deep Sleep mode enables low-power intrusion monitoring. | Use Scenario: Detecting passenger presence and seatbelt status using capacitive electrodes embedded in seat cushions and backrests. IC Role / Device Role / Timing Role: CAPSENSE™ MSC controller with SmartSense, SAR ADC for seat weight estimation, and CAN FD for status reporting. Use Value: >5:1 SNR and water tolerance ensure reliable detection under sweat, spills, or condensation; hardware TRNG supports secure occupant ID binding. |
| Smart Rearview Mirror HMI | Automotive Gateway Node |
Use Scenario: Touch-enabled rearview mirror with ambient light sensing, blind-spot alert overlay, and gesture control. IC Role / Device Role / Timing Role: Capacitive touch controller with LCD segment drive capability and I2C-connected ambient light sensor interface. Use Value: Single-chip integration of CAPSENSE™, LCD drive, and 12-bit ADC eliminates discrete analog front-end; 105°C rating ensures operation behind glass in hot climates. | Use Scenario: Protocol translation between CAN FD (powertrain), LIN (actuators), and UART/I2C (infotainment peripherals) in domain controllers. IC Role / Device Role / Timing Role: Multi-protocol bridge MCU with five reconfigurable SCBs and hardware CRC acceleration for message integrity. Use Value: Runtime SCB reconfiguration allows dynamic allocation of UART (for debug), I2C (for EEPROM), and CAN FD (for diagnostics) without firmware reload. |
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, no integrated CAPSENSE™, requires external touch controller | Better floating-point performance for motor control; lacks native capacitive sensing | Select when advanced math-intensive algorithms outweigh touch integration needs |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, 256 KB flash, no CAN FD, only CAN 2.0B | Lower cost for legacy CAN networks; insufficient bandwidth for high-data-rate ADAS sensor fusion | Select for cost-sensitive body electronics where CAN FD is not required |
Compared with S32K144W and RL78/F14, CY8C4148LDSS543XQLA1 uniquely combines CAN FD, hardware CAPSENSE™, and Deep Sleep analog retention - making it optimal for next-gen automotive HMI and sensor-edge nodes where integration, power efficiency, and environmental robustness are critical.
Availability
CY8C4148LDSS543XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, occupancy detection systems, smart mirror HMIs, and gateway nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4148LDSS543XQLA1 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 ICs, and security solutions, with global R&D and manufacturing infrastructure serving Tier-1 automotive suppliers.
CY8C4148LDSS543XQLA1 belongs to the PSoC™ 4100S Max product line, engineered specifically for AEC-Q100-compliant automotive applications demanding mixed-signal integration, functional safety readiness, and field-upgradable capacitive sensing.
FAQ
What is the maximum operating temperature grade for CY8C4148LDSS543XQLA1?
CY8C4148LDSS543XQLA1 is qualified to AEC-Q100 Grade-S, supporting continuous operation from –40°C to +105°C. This rating is verified per test condition HTOL (High-Temperature Operating Life) and TC (Temperature Cycling), making it suitable for under-hood and cabin-mounted automotive ECUs where thermal stress exceeds commercial-grade limits.
Does CY8C4148LDSS543XQLA1 support CAN FD with ISO 11898-1:2015 compliance?
Yes, the integrated CAN FD controller complies with ISO 11898-1:2015, supporting arbitration bit rates up to 1 Mbps and data bit rates up to 5 Mbps with flexible data-length coding (up to 64 bytes per frame). It includes hardware CRC calculation, error confinement, and automatic retransmission - meeting functional safety requirements for ASIL-B automotive networks.
How many CAPSENSE™ electrodes can be supported simultaneously?
The Multi-Sense Converter (MSC) block supports up to 64 self-capacitive or 32 mutual-capacitive electrodes concurrently, with hardware-accelerated scanning and SmartSense auto-tuning. Electrode count is constrained by GPIO availability (84 total) and scan time budget - typical implementations achieve 32-button + slider configurations within 20 ms full-scan latency.
Is ModusToolbox™ required for development, or can Keil MDK or IAR Embedded Workbench be used?
ModusToolbox™ is optional but recommended for full access to PDL (Peripheral Driver Library), CAPSENSE™ Tuner, and SmartSense configuration tools. However, Keil MDK and IAR Embedded Workbench are fully supported via CMSIS-compliant startup files and linker scripts provided in the official PSoC™ 4 SDK - enabling standard ARM toolchain workflows without vendor lock-in.
CY8C4148LDSS543XQLA1 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:
- 256KB (256K 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:
CY8C4148LDSS543XQLA1 FAQ
1.How can I place an order for CY8C4148LDSS543XQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4148LDSS543XQLA1 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 CY8C4148LDSS543XQLA1 reliable?
The price and inventory of CY8C4148LDSS543XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4148LDSS543XQLA1 is usually 5 days.
3.What payment methods are accepted for CY8C4148LDSS543XQLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4148LDSS543XQLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4148LDSS543XQLA1?
CY8C4148LDSS543XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4148LDSS543XQLA1 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 CY8C4148LDSS543XQLA1?
For technical support, including CY8C4148LDSS543XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4148LDSS543XQLA1 requirements.
6.How does Aetrix verify that CY8C4148LDSS543XQLA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4148LDSS543XQLA1 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 CY8C4148LDSS543XQLA1 meets industry standards.
7.What is the process for return or replacement of CY8C4148LDSS543XQLA1?
All CY8C4148LDSS543XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4148LDSS543XQLA1, 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 CY8C4148LDSS543XQLA1 part is unused and in its original packaging.
Return procedure for CY8C4148LDSS543XQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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