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Infineon Technologies CY8C4127AZE-S455T
- Part No.:
- CY8C4127AZE-S455T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4127AZE-S455T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,193
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Product details
Overview
CY8C4127AZE-S455T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with >5:1 SNR. It includes five reconfigurable serial communication blocks (I²C/SPI/UART/LIN), a CAN 2.0B controller with TTCAN support, and eight 16-bit TCPWM blocks-used in motor control, touch HMI, and body electronics.
For engineers reviewing the CY8C4127AZE-S455T datasheet, CY8C4127AZE-S455T pinout, CY8C4127AZE-S455T application, or CY8C4127AZE-S455T equivalent, key selection criteria include its AEC-Q100 qualification, Deep Sleep current (2.5 µA), programmable analog (opamps, 12-bit 1-Msps SAR ADC, IDACs), CAN + TTCAN capability, and GPIO flexibility across 54 pins in 48-pin QFN.
Technical Context
The device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog (CTB, SAR ADC, IDAC, LPC) and digital (TCPWM, SCB, Smart I/O) blocks operate independently under hardware routing. Its clock system combines a 4–33 MHz ECO, PLL for 48-MHz core clock, 32-kHz WCO, and ±2% IMO-enabling precise timing for CAN, PWM, and capacitive sensing.
Capacitive sensing uses sigma-delta (CSD) modulation with hardware-accelerated SmartSense auto-tuning and supports water-tolerant HMI. The CAN block complies with ISO 11898-1:2015 and supports time-triggered operation via dedicated TTCAN registers and synchronized timestamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution of automotive control and sensor fusion tasks. |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB SRAM - supports complex firmware with bootloader, secure boot, and CAPSENSE™ tuning data storage. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with averaging - delivers high-resolution analog acquisition for battery monitoring or temperature sensing. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-synchronized message scheduling required for chassis control and ADAS domain controllers. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interface with 3.3 V and 5 V automotive subsystems without level-shifting. |
| Deep Sleep Current | 2.5 µA digital + operational analog - enables always-on capacitive wake-up and low-power CAN bus monitoring. |
| GPIO Count | 54 programmable pins - all support CAPSENSE™, analog, or digital functions with configurable drive strength and slew rate. |
| Temperature Grade | AEC-Q100 Grade-S (–40°C to +105°C) - qualified for engine bay and powertrain-adjacent applications. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Supply Rails | Independent 1.71–5.5 V domains per port group - enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor outputs). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 54 pins support CAPSENSE™ CSD/CSD-HW, analog input/output, digital logic, or SCB/CAN functions - routed dynamically via hardware interconnect matrix. |
| XTAL_IN / XTAL_OUT | External Crystal Oscillator Input/Output | Supports 4–33 MHz crystal for precision clocking of CAN, USB (via SCB), and timing-critical PWM generation. |
| CAN_TX / CAN_RX | CAN Transceiver Interface Pins | Dedicated differential pair with internal termination and slew-rate control - directly connect to external CAN transceiver (e.g., TJA1042). |
| SWDCLK / SWDIO | ARM Serial Wire Debug Interface | Two-pin debug interface supporting flash programming, real-time trace, and breakpoints - no JTAG header required. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CAPSENSE™ CSD Engine | Integrated sigma-delta modulator with >5:1 SNR and automatic SmartSense tuning - eliminates manual calibration for production touch panels. |
| Reconfigurable SCBs | Five independent serial blocks each configurable as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count by consolidating protocol interfaces. |
| TTCAN Support | Time-triggered CAN with guaranteed message transmission windows and synchronized timestamps - meets ASAM MCD-2 MC and AUTOSAR timing requirements. |
| Programmable Analog Blocks | Two opamps (with comparator/ADC buffer modes), two IDACs, two low-power comparators - enable sensor signal conditioning and self-test without external components. |
| Deep Sleep with Active Analog | 2.5 µA system current while maintaining opamp, comparator, and CSD operation - enables capacitive wake-up and CAN bus monitoring during sleep. |
Applications
| Automotive Door Module | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Capacitive touch handles, window lift control, mirror adjustment, and anti-pinch detection. IC Role / Device Role / Timing Role: Primary MCU executing touch HMI, motor control (TCPWM), CAN gateway, and sensor fusion. Use Value: Single-chip integration replaces discrete touch controller + MCU + CAN transceiver driver - reduces PCB area by 35% and bill-of-materials cost. |
Use Scenario: Centralized control of lighting, wipers, HVAC actuators, and door locks in mid-tier vehicles. IC Role / Device Role / Timing Role: Real-time CAN node managing distributed peripherals with TTCAN-scheduled diagnostics and firmware updates. Use Value: Hardware-based TTCAN ensures deterministic response to critical messages (e.g., brake light activation) within ≤200 µs jitter. |
| Electric Parking Brake (EPB) Actuator | Seat Position Memory System |
|
Use Scenario: Motor-driven parking brake actuation with torque monitoring, thermal protection, and fail-safe release. IC Role / Device Role / Timing Role: Safety-capable controller running ASIL-B software with dual-core lockstep not required - leverages hardware CRC, WDT, and memory protection unit. Use Value: Integrated 12-bit SAR ADC and opamp buffers enable direct motor current sensing and temperature feedback without external signal chain. |
Use Scenario: Non-volatile storage and recall of seat position, mirror angle, and steering column settings via capacitive buttons. IC Role / Device Role / Timing Role: Touch HMI processor with EEPROM-emulated flash storage and CAN message forwarding to central gateway. Use Value: CAPSENSE™ CSD achieves >10 mm water tolerance - maintains functionality during car wash or rain exposure. |
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 @ 112 MHz, 1 MB flash, 128 KB RAM, no integrated CAPSENSE™, requires external touch controller. | Better floating-point performance for motor control algorithms; lacks on-die capacitive sensing IP. | Select when higher compute throughput is needed and touch is implemented externally or omitted. |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz, 512 KB flash, 32 KB RAM, no CAN FD or TTCAN, only basic CAN 2.0A/B. | Lower cost for non-time-critical body electronics; lacks hardware CSD and Deep Sleep analog retention. | Select for cost-sensitive entry-level BCMs where TTCAN and capacitive HMI are not required. |
Compared with S32K144W and RL78/F14, CY8C4127AZE-S455T uniquely integrates CAPSENSE™, TTCAN, and Deep Sleep analog operation in a single AEC-Q100 Grade-S package-reducing component count and enabling compact, water-tolerant HMI solutions without sacrificing CAN timing determinism.
Availability
CY8C4127AZE-S455T is available at Aetrix Electronics and suitable for automotive door modules, body control units, electric parking brake actuators, and seat memory systems requiring stable component supply and AEC-Q100 compliance.
Supply support for CY8C4127AZE-S455T 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.
CY8C4127AZE-S455T belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive body electronics requiring integrated capacitive sensing, deterministic CAN communication, and ultra-low-power operation in extended temperature environments.
FAQ
Is CY8C4127AZE-S455T pin-compatible with other PSoC™ 4100S Plus devices?
Yes, it shares the same 48-pin QFN footprint and pin mapping with CY8C4127AZI-S455 and CY8C4127AZI-S456, differing only in temperature grade and packaging variant (e.g., wettable flank). Pin functions-including CAN_TX/RX, SCB, and CAPSENSE™-are identical across the AZE/AZI suffix variants.
Does this part support AUTOSAR Basic Software Modules?
Infineon provides AUTOSAR-compliant MCAL drivers for CAN, ADC, DIO, and PWM through its PSoC™ 4100S Plus MCAL package, validated against AUTOSAR 4.3. The device's memory layout, interrupt latency, and CAN TTCAN timing meet ASAM MCD-2 MC requirements for integration into AUTOSAR-based ECUs.
Can the integrated opamps be used for sensor signal conditioning in automotive temperature sensors?
Yes-the two continuous-time opamps support rail-to-rail input/output, operate down to 1.71 V, and remain functional in Deep Sleep mode. They are specified for –40°C to +105°C and support PGA configurations with gain up to 16×, making them suitable for conditioning PT100/NTC signals in cabin or under-hood applications.
What development tools are officially supported for firmware development?
Infineon officially supports ModusToolbox™ (v3.1+) with PDL v3.x and CAPSENSE™ Tuner, plus legacy PSoC™ Creator v4.4 for schematic-based design. Both toolchains provide certified HAL drivers, BSPs for CY8CKIT-041-41XX and CY8CKIT-149, and example projects for CAN bootloading and CSD tuning.
CY8C4127AZE-S455T 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-S455T FAQ
1.How can I place an order for CY8C4127AZE-S455T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127AZE-S455T 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-S455T reliable?
The price and inventory of CY8C4127AZE-S455T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127AZE-S455T is usually 5 days.
3.What payment methods are accepted for CY8C4127AZE-S455T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127AZE-S455T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127AZE-S455T?
CY8C4127AZE-S455T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127AZE-S455T 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-S455T?
For technical support, including CY8C4127AZE-S455T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127AZE-S455T requirements.
6.How does Aetrix verify that CY8C4127AZE-S455T is sourced from the original manufacturer or authorized distributors?
All CY8C4127AZE-S455T 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-S455T meets industry standards.
7.What is the process for return or replacement of CY8C4127AZE-S455T?
All CY8C4127AZE-S455T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127AZE-S455T, 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-S455T part is unused and in its original packaging.
Return procedure for CY8C4127AZE-S455T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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