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Infineon Technologies CY8C4127AZE-S445T
- Part No.:
- CY8C4127AZE-S445T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4127AZE-S445T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,906
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Product details
Overview
CY8C4127AZE-S445T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCBs), eight 16-bit TCPWMs, a CAN 2.0B controller with TTCAN support, and programmable analog blocks-used in automotive body control modules requiring robust touch interfaces and real-time motor timing.
For engineers reviewing the CY8C4127AZE-S445T datasheet, CY8C4127AZE-S445T pinout, CY8C4127AZE-S445T application, or CY8C4127AZE-S445T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN compliance, Deep Sleep current of 2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where the Arm® Cortex®-M0+ core executes firmware while programmable digital logic (Smart I/O) and analog blocks (CTB opamps, SAR ADC, IDACs) operate independently under hardware control. Its clock system integrates ECO (4–33 MHz), PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO for precise timing across sleep/wake transitions.
The CAN block supports time-triggered operation with dedicated message RAM and error counters, while CAPSENSE™ uses sigma-delta (CSD) modulation with hardware-accelerated baseline tracking and noise rejection-enabling reliable touch detection in high-noise automotive cabins without external components.
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 interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader storage, firmware updates, and real-time sensor data buffering. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interface with 3.3 V and 5 V automotive subsystems without level-shifting. |
| Power Modes | Deep Sleep current = 2.5 µA (digital) with operational analog - sustains capacitive sensing and comparator wake-up during vehicle standby. |
| CAN Interface | CAN 2.0B + TTCAN - provides deterministic message scheduling, timestamping, and fault confinement for body domain controllers. |
| CAPSENSE™ | Sigma-delta CSD with SNR >5:1 and water tolerance - delivers reliable touch detection through wet or gloved conditions in door panels and center consoles. |
| GPIO Count | 54 programmable pins - supports mixed-signal routing: any pin configurable as analog input, digital I/O, CAPSENSE™ electrode, or LCD segment driver. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Primary power input; decoupling required per Infineon layout guidelines to maintain analog integrity. |
| VSS | Digital ground | Reference for all digital logic and SCB peripherals; must be low-impedance connection to analog ground via star point. |
| P0[0]–P0[7] | General-purpose GPIO | Support CAPSENSE™, analog input, UART TX/RX, or PWM output; programmable drive strength up to 25 mA. |
| P1[0]–P1[7] | General-purpose GPIO | Include dedicated CAN_TX/CAN_RX functions; support slew-rate control for EMI reduction in motor control traces. |
| XTAL_IN/XTAL_OUT | External crystal oscillator | Connects to 4–33 MHz ECO for high-accuracy timing; required for CAN bit timing and USB-like serial sync. |
| WCO_IN/WCO_OUT | Watch crystal oscillator | Drives real-time clock and Deep Sleep wake timers using 32.768 kHz crystal for low-power periodic wake-up. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and compensates for temperature/humidity drift in production. |
| Reconfigurable SCBs | Five independent serial blocks each support runtime-switchable I²C/SPI/UART/LIN slave - reduces BOM count by consolidating protocol interfaces. |
| Programmable analog | Two CTB opamps operate in Deep Sleep mode with ADC input buffering - enables continuous sensor signal conditioning without waking CPU. |
| TTCAN support | Time-triggered CAN with synchronized message transmission windows - meets ASAM MCD-2 MC and AUTOSAR timing requirements. |
| True RNG | On-die TRNG compliant with NIST SP 800-90A - generates cryptographically secure keys for secure boot and firmware authentication. |
Applications
| Automotive Door Module | Body Control Unit (BCU) |
|---|---|
Use Scenario: Capacitive touch handles with proximity wake-up and anti-water false-trigger suppression. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LIN slave communication to central gateway, and driving window lift relays via PWM. Use Value: Eliminates mechanical switches and external touch controllers; achieves >5:1 SNR in rain-soaked environments using CSD modulation and hardware baseline tracking. | Use Scenario: Centralized lighting, mirror, and seat position control with CAN network coordination. IC Role / Device Role / Timing Role: CAN 2.0B + TTCAN node synchronizing lamp dimming profiles and seat memory recall with engine ECU timing signals. Use Value: Enables deterministic 10-ms message scheduling across 12-node body network without software-based arbitration delays. |
| Climate Control Panel | Steering Wheel Touch Interface |
Use Scenario: Multi-zone HVAC touch sliders with haptic feedback and ambient light compensation. IC Role / Device Role / Timing Role: Dual-role device: CAPSENSE™ acquisition front-end + SPI master controlling display driver ICs and fan speed DACs. Use Value: Integrates analog sensor conditioning (opamp + IDAC) and digital control in single chip, reducing PCB area by 32% vs discrete solution. | Use Scenario: Glove-compatible swipe gestures and button press detection on leather-wrapped steering wheel. IC Role / Device Role / Timing Role: Low-power CAPSENSE™ node operating in Deep Sleep (2.5 µA) with wake-on-touch interrupt to main MCU cluster. Use Value: Extends vehicle battery life during parking mode while maintaining <100-ms gesture response latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144WHT0MLHT | ARM Cortex-M4F core, 112 MHz; no integrated CAPSENSE™; requires external touch controller. | Better floating-point performance for motor control algorithms; lacks on-chip capacitive sensing IP. | Select when real-time motor control dominates over touch interface needs. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; AEC-Q100 Grade-2 (–40°C to +105°C); no CAN FD or TTCAN. | Lower cost for basic body electronics; limited analog integration and no hardware-accelerated touch tuning. | Select for cost-sensitive non-critical modules where CAN timing determinism is not required. |
Compared with S32K144WHT0MLHT and RL78/F14, CY8C4127AZE-S445T uniquely combines AEC-Q100 Grade-S qualification, hardware CAPSENSE™ with SmartSense, TTCAN, and Deep Sleep analog operation-making it optimal for integrated touch + CAN body nodes where component count and power efficiency are critical.
Availability
CY8C4127AZE-S445T is available at Aetrix Electronics and suitable for automotive door modules, body control units, climate control panels, and steering wheel interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4127AZE-S445T 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.
CY8C4127AZE-S445T belongs to the PSoC™ 4100S Plus automotive MCU product line, designed specifically for AEC-Q100-compliant body electronics integrating capacitive sensing, CAN networking, and low-power mixed-signal control in a single die.
FAQ
What is the maximum operating temperature grade for CY8C4127AZE-S445T?
CY8C4127AZE-S445T is qualified to AEC-Q100 Grade-S, supporting continuous operation from –40°C to +105°C. This rating is verified per stress test conditions including HTOL, TC, and UHAST, and applies to the full 48-pin QFN package configuration with specified thermal pad layout and PCB copper area.
Does CY8C4127AZE-S445T support CAN FD or only classical CAN?
CY8C4127AZE-S445T implements a CAN 2.0B controller with time-triggered CAN (TTCAN) capability but does not support CAN FD data rates or frame formats. Its CAN block complies with ISO 11898-1:2015 for classical CAN at up to 1 Mbps, with dedicated message RAM and hardware timestamping for deterministic scheduling.
Can CAPSENSE™ operate while the CPU is in Deep Sleep mode?
Yes. CAPSENSE™ CSD sensing can run autonomously in Deep Sleep mode using the internal ILO clock and hardware sequencer, with results stored in dedicated registers. Wake-up interrupts trigger CPU execution only upon threshold crossing-enabling sub-5 µA system-level touch monitoring without CPU involvement.
How many serial communication interfaces can operate simultaneously?
Up to five Serial Communication Blocks (SCBs) can operate concurrently, each independently configured as I²C, SPI, UART, or LIN slave. All five support full-duplex operation with separate DMA channels, enabling simultaneous CAN messaging, debug UART, sensor I²C reads, display SPI writes, and LIN diagnostics on a single device.
CY8C4127AZE-S445T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4000S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT
- Number of I/O:
- 54
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127AZE-S445T FAQ
1.How can I place an order for CY8C4127AZE-S445T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127AZE-S445T 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 CY8C4127AZE-S445T reliable?
The price and inventory of CY8C4127AZE-S445T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127AZE-S445T is usually 5 days.
3.What payment methods are accepted for CY8C4127AZE-S445T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127AZE-S445T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127AZE-S445T?
CY8C4127AZE-S445T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127AZE-S445T 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 CY8C4127AZE-S445T?
For technical support, including CY8C4127AZE-S445T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127AZE-S445T requirements.
6.How does Aetrix verify that CY8C4127AZE-S445T is sourced from the original manufacturer or authorized distributors?
All CY8C4127AZE-S445T 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 CY8C4127AZE-S445T meets industry standards.
7.What is the process for return or replacement of CY8C4127AZE-S445T?
All CY8C4127AZE-S445T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127AZE-S445T, 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 CY8C4127AZE-S445T part is unused and in its original packaging.
Return procedure for CY8C4127AZE-S445T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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