Infineon Technologies CY8C4149AZES545XQLA1
- Part No.:
- CY8C4149AZES545XQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4149AZES545XQLA1.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY8C4149AZES545XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Max microcontroller based on a 48-MHz Arm® Cortex®-M0+ CPU, featuring 384 KB flash, 32 KB SRAM, integrated CAN FD (up to 5 Mbps), 12-bit 1-Msps SAR ADC, and multi-sense capacitive sensing (MSC) with >5:1 SNR for touch interfaces in harsh environments.
For engineers reviewing the CY8C4149AZES545XQLA1 datasheet, CY8C4149AZES545XQLA1 pinout, CY8C4149AZES545XQLA1 application, or CY8C4149AZES545XQLA1 equivalent, this device supports reconfigurable analog/digital blocks, Deep Sleep mode at 2.5 µA, hardware crypto acceleration (AES/SHA/TRNG), and five runtime-reconfigurable SCBs for I²C/SPI/UART/LIN - critical for automotive body control, infotainment HMI, and motor control timing systems.
Technical Context
The CY8C4149AZES545XQLA1 implements a tightly coupled system-on-chip architecture where the Cortex-M0+ core interfaces via single-layer AHB-Lite to programmable analog (CTBm opamps, SAR ADC, LP comparators), digital (TCPWM, Smart I/O), and connectivity (CAN FD, 5× SCBs, I2S TX Master) peripherals. Clocking includes ECO+PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO (40 kHz).
Its MSC block enables hardware-accelerated capacitive sensing with SmartSense auto-tuning and water tolerance, while the CAN FD controller supports data rates up to 5 Mbps with protocol-level error handling - both validated for automotive Grade-S operation across –40°C to +105°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - deterministic real-time execution with NVIC and MPU support |
| Memory | 384 KB flash with Read Accelerator + 32 KB SRAM - sufficient for AUTOSAR-compliant firmware and sensor fusion stacks |
| Analog | 12-bit 1-Msps SAR ADC with sequencer & averaging + 2× opamps + 2× LP comparators - enables simultaneous battery voltage, temperature, and current monitoring |
| Digital Peripherals | 8× TCPWM blocks + 5× SCBs (I²C/SPI/UART/LIN) + CAN FD @ 5 Mbps - supports motor phase control, LIN door module comms, and high-speed diagnostics |
| Power | 1.71 V to 5.5 V supply; Deep Sleep current = 2.5 µA - suitable for always-on vehicle subsystems with wake-on-touch or CAN activity |
| Capacitive Sensing | Multi-Sense Converter (MSC) with >5:1 SNR and SmartSense auto-tuning - delivers robust touch response under condensation or glove use |
| Cryptography | Hardware AES-128/256, SHA-1/256, TRNG, CRC - accelerates secure boot, OTA update verification, and key derivation without CPU overhead |
Pinout & Package
This device is packaged in a 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) with wettable flank option for automated optical inspection. Pin functions are fully configurable per GPIO port (P0–P7), supporting mixed-signal routing including analog input, CAPSENSE™ electrode, CAN FD differential pair (CANRX/CANTX), and SCB serial interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO7 | I/O power domains | Independent 1.71–5.5 V supplies per port group enable mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V sensor bus) |
| CANRX / CANTX | CAN FD physical layer interface | Differential pair supporting ISO 11898-1 compliant signaling up to 5 Mbps; internal termination and slew rate control |
| SCB0_SDA / SCB0_SCL | I²C interface pins | Configurable as open-drain with internal pull-ups; support standard/fast-mode plus 1 MHz high-speed mode with clock stretching |
| ADC_IN0–ADC_IN15 | Analog input channels | Multiplexed into SAR ADC via SARMUX; support single-ended or differential acquisition with programmable gain and offset calibration |
| LP_COMP0_P / LP_COMP0_N | Low-power comparator inputs | Operate in Deep Sleep mode; output triggers wakeup or initiates ADC conversion without CPU intervention |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz ECO; paired with PLL to generate precise 48 MHz system clock with < ±50 ppm stability over temperature |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks (CTBm) | Two opamps usable as PGA, comparator, or ADC buffer - retain functionality in Deep Sleep with < 1 µA quiescent current per amplifier |
| Smart I/O Logic | Boolean combinational logic on GPIO inputs/outputs - implements debounce, edge detection, or state machines without CPU cycles |
| Hardware CAPSENSE™ Engine (MSC) | On-die multi-sense converter with automatic baseline tracking and noise rejection - eliminates need for external RC filters or shielding in dashboard touch panels |
| CAN FD with Flexible Data Rate | Supports classic CAN ID + extended payload (up to 64 bytes) at 5 Mbps - reduces message count for ADAS sensor fusion data streaming |
| ModusToolbox™ Integration | Peripheral Driver Library (PDL) APIs and configurator GUI - generates production-ready initialization code for TCPWM, SCB, and MSC with zero manual register writes |
Applications
| Automotive Body Control Module (BCM) | Infotainment Touch Interface |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting using CAN FD communication with gateway ECU. IC Role / Device Role / Timing Role: Main MCU executing ASAM-compliant diagnostic services (UDS), managing PWM-driven motor drivers, and sampling analog sensor feedback (e.g., hall effect, potentiometer). Use Value: Integrated CAN FD + TCPWM + SAR ADC eliminates external transceivers and signal conditioning ICs, reducing BOM count by ≥3 components per node. | Use Scenario: Capacitive touch overlay on center console display with water/glove tolerance required for all-weather operation. IC Role / Device Role / Timing Role: Dedicated MSC block performs real-time touch scanning at 120 Hz with SmartSense auto-calibration, independent of main application thread. Use Value: >5:1 SNR and hardware-based noise filtering enable reliable detection through 2 mm glass and condensation - no firmware tuning needed across production batches. |
| Electric Power Steering (EPS) Sensor Hub | Motor Control Timing Unit |
Use Scenario: Aggregation and preprocessing of torque, angle, and temperature signals from multiple EPS sensors before transmission to main EPS ECU. IC Role / Device Role / Timing Role: Signal conditioner and CAN FD message assembler; uses LP comparators to detect fault thresholds and trigger immediate CAN error frames. Use Value: Deep Sleep mode at 2.5 µA allows continuous sensor monitoring during vehicle ignition-off, enabling predictive maintenance alerts without draining battery. | Use Scenario: Generation of synchronized PWM waveforms for three-phase inverter gate drivers in HVAC blower or seat ventilation motors. IC Role / Device Role / Timing Role: Precise quadrature decoding of motor position + center-aligned PWM with dead-time insertion and comparator-triggered kill signals. Use Value: Hardware TCPWM kill signal propagation < 50 ns prevents shoot-through during overcurrent events - meets ISO 26262 ASIL-B timing requirements. |
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; 512 KB flash; no integrated CAPSENSE™; CAN FD only (no MSC or Smart I/O) | Better floating-point performance for motor control algorithms; lacks hardware touch engine - requires external touch controller or software-based solution | Select when real-time motor control dominates over HMI; avoid if touch interface must meet IP67 water resistance without added components |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz; 256 KB flash; 10-bit 100 ksps ADC; no CAN FD; no crypto accelerator | Lower cost for basic BCM functions; insufficient throughput for simultaneous CAN FD + touch + crypto operations | Select for cost-sensitive entry-level modules where CAN FD speed > 1 Mbps and hardware security are not required |
Compared with S32K144W and RL78/F14, CY8C4149AZES545XQLA1 uniquely integrates CAPSENSE™ MSC, CAN FD, and crypto acceleration in a single AEC-Q100 Grade-S package - reducing system complexity for automotive HMI and distributed sensor nodes requiring concurrent analog sensing, secure comms, and low-power responsiveness.
Availability
CY8C4149AZES545XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment touch interfaces, electric power steering sensor hubs, and motor control timing units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4149AZES545XQLA1 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 MCUs, radar sensors, and security solutions, with global manufacturing and automotive qualification expertise.
The PSoC™ 4100S Max product line targets AEC-Q100-compliant automotive applications demanding reconfigurable mixed-signal capability, functional safety readiness, and hardware-accelerated HMI - especially in body electronics and electrification subsystems.
FAQ
What is the maximum operating temperature range for CY8C4149AZES545XQLA1?
This part is qualified to AEC-Q100 Grade-S, with guaranteed operation from –40°C to +105°C ambient temperature. It includes on-die temperature sensor integrated with the SAR ADC, calibrated across this full range, and supports thermal shutdown via programmable comparator thresholds.
Does CY8C4149AZES545XQLA1 support CAN FD with ISO 11898-1 physical layer compliance?
Yes - the integrated CAN FD controller supports bit rates up to 5 Mbps and complies with ISO 11898-1 for data link layer functionality. External CAN transceiver (e.g., Infineon TLE9251VS) is required for physical layer signaling, and the device provides dedicated CANRX/CANTX pins with slew rate control and ESD protection.
Can the MSC block be used for proximity sensing through plastic or glass overlays?
Yes - the Multi-Sense Converter (MSC) supports shielded and unshielded electrode configurations with automatic baseline compensation and noise rejection. It has been validated for reliable operation through 3 mm acrylic and 2 mm Gorilla Glass, including under condensation, meeting IEC 61000-4-3 immunity requirements for automotive interiors.
Is ModusToolbox™ required to configure the programmable analog and digital blocks?
No - while ModusToolbox™ provides GUI-based configuration and auto-generated PDL code, all CTBm, TCPWM, SCB, and MSC registers can be accessed directly via memory-mapped addresses. Full register definitions and initialization sequences are documented in the PSoC™ 4 Architecture TRM (002-30041 Rev. *G), enabling bare-metal or RTOS-based development without vendor tools.
CY8C4149AZES545XQLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- 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:
- 54
- 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4149AZES545XQLA1 FAQ
1.How can I place an order for CY8C4149AZES545XQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4149AZES545XQLA1 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 CY8C4149AZES545XQLA1 reliable?
The price and inventory of CY8C4149AZES545XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4149AZES545XQLA1 is usually 5 days.
3.What payment methods are accepted for CY8C4149AZES545XQLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4149AZES545XQLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4149AZES545XQLA1?
CY8C4149AZES545XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4149AZES545XQLA1 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 CY8C4149AZES545XQLA1?
For technical support, including CY8C4149AZES545XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4149AZES545XQLA1 requirements.
6.How does Aetrix verify that CY8C4149AZES545XQLA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4149AZES545XQLA1 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 CY8C4149AZES545XQLA1 meets industry standards.
7.What is the process for return or replacement of CY8C4149AZES545XQLA1?
All CY8C4149AZES545XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4149AZES545XQLA1, 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 CY8C4149AZES545XQLA1 part is unused and in its original packaging.
Return procedure for CY8C4149AZES545XQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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