My Inquiry
My Account
Infineon Technologies CY8C4146AZE-S255
- Part No.:
- CY8C4146AZE-S255
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZE-S255.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,898
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4146AZE-S255 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 SmartSense auto-tuning. It integrates programmable analog (2 opamps, 12-bit 1-Msps SAR ADC, 2 IDACs), digital logic (8 TCPWM, 5 SCBs), CAN 2.0B with TTCAN support, and operates from 1.71 V to 5.5 V - deployed in automotive body control modules requiring robust touch interface and real-time motor timing.
For engineers reviewing the CY8C4146AZE-S255 datasheet, CY8C4146AZE-S255 pinout, CY8C4146AZE-S255 application, or CY8C4146AZE-S255 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR >5:1 with water tolerance, CAN 2.0B + TTCAN compliance, Deep Sleep current ≤2.5 µA, and reconfigurable SCB blocks supporting concurrent I²C/SPI/UART/LIN.
Technical Context
This device implements a tightly coupled mixed-signal SoC architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog blocks (CTB, SAR ADC, LPC) and digital blocks (TCPWM, SCB, CAN) are configured at runtime via PSoC™ Creator or ModusToolbox™. The CAPSENSE™ subsystem uses sigma-delta modulation with hardware-accelerated SmartSense tuning for drift compensation.
The clock system includes a 4–33 MHz ECO, PLL for 48-MHz core clock, 32-kHz WCO, and ±2% IMO - enabling precise timing for CAN bit arbitration, TCPWM-based motor commutation, and low-jitter capacitive sensing acquisition. All analog peripherals remain functional in Deep Sleep mode with 2.5 µA system current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - delivers deterministic real-time control for safety-critical automotive functions. |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB SRAM - supports secure bootloader, OTA updates, and dual-bank firmware storage. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - enables high-resolution sensor data acquisition (e.g., cabin temp, humidity). |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SNR >5:1 and water tolerance - certified for automotive touch panels exposed to condensation or splashing. |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - meets ISO 11898-1 for synchronized message scheduling in body domain networks. |
| Power Range | 1.71 V to 5.5 V operation; Deep Sleep current ≤2.5 µA - enables always-on wake-on-touch functionality without battery drain. |
| GPIO Count | Up to 54 programmable pins across QFN/TQFP packages; any pin supports CAPSENSE™, analog, or digital - simplifies PCB routing and layout reuse. |
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 domains | Independent 1.71–5.5 V rails per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin configurable as CAPSENSE™ electrode, analog input/output, digital peripheral function (SCB, TCPWM), or LCD segment driver. |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Supports 4–33 MHz ECO for precision timing; required for CAN bit timing accuracy and USB-free clock recovery. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY (e.g., TJA1042); supports TTCAN time-stamping and synchronization signals. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC operation and low-power wake-up events during Deep Sleep without waking CPU core. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and compensates for environmental drift in production. |
| Reconfigurable SCBs | Five serial communication blocks each dynamically assignable as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count vs. discrete protocol ICs. |
| Deep Sleep Analog Retention | Opamps, comparators, and SAR ADC remain active in Deep Sleep at ≤2.5 µA total system current - enables continuous touch monitoring without CPU intervention. |
| TTCAN Support | Time-triggered communication scheduling with guaranteed latency and jitter <1 µs - satisfies ASAM MCD-2 MC and AUTOSAR COM stack timing requirements. |
| Programmable Drive Modes | Each GPIO supports open-drain, push-pull, high-Z analog, resistive pull-up/down, and slew-rate control - ensures signal integrity across diverse load conditions. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door handle and window switch interface with proximity wake-up and anti-water false-trigger immunity. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ acquisition, LIN slave communication to body controller, and PWM-driven LED status indicators. Use Value: Single-chip integration replaces discrete touch controller + MCU + LIN transceiver, reducing board area by 35% and qualifying to AEC-Q100 Grade-S. | Use Scenario: HVAC control panel with slider, buttons, and ambient light-adaptive backlighting in passenger cabin. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with SmartSense, SAR ADC for thermistor reading, TCPWM for dimmable LED drivers, and SCB-as-UART for HVAC ECU telemetry. Use Value: Hardware-accelerated touch processing achieves <10 ms response time under condensation, meeting UNECE R100 interior HMI requirements. |
| Steering Wheel Controls | Seat Position Memory System |
Use Scenario: Multi-function steering wheel with capacitive buttons, rotary encoder emulation, and haptic feedback timing. IC Role / Device Role / Timing Role: Real-time CAPSENSE™ acquisition, quadrature decoder for rotary input, CAN TX/RX for vehicle bus integration, and PWM for piezo haptic actuator drive. Use Value: Integrated CAN + CAPSENSE™ eliminates external level-shifter and isolator, achieving ASIL-B readiness per ISO 26262 Annex G. | Use Scenario: Motorized seat with position memory, occupancy detection via capacitance sensing, and LIN communication to seat ECU. IC Role / Device Role / Timing Role: Dual-role CAPSENSE™ (occupancy + position tracking), IDAC-driven seat track sensing, LIN slave for seat position reporting, and TCPWM for motor control. Use Value: Single-device solution supports both safety-critical occupancy detection (IEC 62366 usability validation) and precision position encoding (±0.5 mm resolution). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable 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 for capacitive UI. | Better floating-point performance for motor control algorithms; lacks hardware-accelerated touch sensing. | Select when advanced math-intensive tasks (e.g., field-oriented control) dominate over touch interface integration. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; built-in touch I/O but no sigma-delta CAPSENSE™; SNR ~3:1, no SmartSense. | Lower cost for basic touch buttons; insufficient SNR/water tolerance for premium automotive HMI. | Select only for non-critical interior controls where condensation resistance is not mandated. |
Compared with S32K144W and RL78/F14, CY8C4146AZE-S255 uniquely combines AEC-Q100 Grade-S qualification, hardware CAPSENSE™ with >5:1 SNR, TTCAN, and Deep Sleep analog retention - making it optimal for cost-sensitive, space-constrained automotive touch + CAN nodes requiring zero external touch components.
Availability
CY8C4146AZE-S255 is available at Aetrix Electronics and suitable for automotive body electronics, climate control interfaces, and steering wheel control modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CY8C4146AZE-S255 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 manufacturing and R&D centers.
The PSoC™ 4100S Plus product line targets automotive human-machine interface (HMI) systems requiring integrated capacitive sensing, CAN connectivity, and functional safety-ready peripherals - designed specifically for AEC-Q100-compliant body electronics.
FAQ
What is the maximum operating temperature grade for CY8C4146AZE-S255?
CY8C4146AZE-S255 is qualified to AEC-Q100 Grade-S, supporting continuous operation from –40°C to +105°C ambient temperature. This rating covers under-hood and cabin-mounted applications including door modules and HVAC panels where thermal cycling and long-term reliability are critical. The device maintains full specification compliance across this range, including CAPSENSE™ performance and CAN timing accuracy.
Does CY8C4146AZE-S255 support CAN FD or only classical CAN?
CY8C4146AZE-S255 integrates a CAN 2.0B controller with Time-Triggered CAN (TTCAN) support but does not implement CAN FD physical layer or protocol extensions. It supports bit rates up to 1 Mbps under classical CAN 2.0B, with hardware timestamping and synchronization for deterministic scheduling - sufficient for body domain networks per AUTOSAR COM stack requirements.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes - CAPSENSE™ CSD sensing, including SmartSense auto-calibration, remains fully operational in Deep Sleep mode with total system current ≤2.5 µA. The analog front-end (CTB, IDACs, CSD block) stays powered while the CPU and most digital resources are gated, enabling wake-on-touch functionality without compromising battery life in always-on automotive systems.
Which development tools are officially supported for CY8C4146AZE-S255 firmware design?
Infineon officially supports two primary toolchains: PSoC™ Creator (Windows-only IDE with schematic-based hardware configuration) and ModusToolbox™ (cross-platform, Eclipse-based, CLI-enabled). Both provide full access to the Peripheral Driver Library (PDL), CAPSENSE™ middleware, and CAN stack. Debugging requires MiniProg3 or KitProg3 programmers compatible with SWD interface.
CY8C4146AZE-S255 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZE-S255 FAQ
1.How can I place an order for CY8C4146AZE-S255 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZE-S255 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 CY8C4146AZE-S255 reliable?
The price and inventory of CY8C4146AZE-S255 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZE-S255 is usually 5 days.
3.What payment methods are accepted for CY8C4146AZE-S255?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZE-S255 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZE-S255?
CY8C4146AZE-S255 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZE-S255 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 CY8C4146AZE-S255?
For technical support, including CY8C4146AZE-S255 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZE-S255 requirements.
6.How does Aetrix verify that CY8C4146AZE-S255 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZE-S255 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 CY8C4146AZE-S255 meets industry standards.
7.What is the process for return or replacement of CY8C4146AZE-S255?
All CY8C4146AZE-S255 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZE-S255, 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 CY8C4146AZE-S255 part is unused and in its original packaging.
Return procedure for CY8C4146AZE-S255:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4146AZE-S255 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
