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Infineon Technologies CY8C4146AZE-S455T
- Part No.:
- CY8C4146AZE-S455T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZE-S455T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,925
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Product details
Overview
CY8C4146AZE-S455T 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 touch-sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (I²C/SPI/UART/LIN), a CAN 2.0B controller with TTCAN support, and eight 16-bit TCPWMs - deployed in automotive body control modules, smart door handles, and HVAC interface panels.
For engineers reviewing the CY8C4146AZE-S455T datasheet, CY8C4146AZE-S455T pinout, CY8C4146AZE-S455T application, or CY8C4146AZE-S455T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN compliance, Deep Sleep current ≤ 2.5 µA, and QFN-48 package compatibility with Arduino-compatible shield headers.
Technical Context
The device implements a tightly coupled programmable analog-digital architecture: its two continuous-time opamps operate in Deep Sleep mode with ADC input buffering, while the 12-bit 1-Msps SAR ADC supports differential acquisition and hardware-sequenced averaging. The capacitance-sensing block delivers sigma-delta (CSD) operation with >5:1 SNR and water-tolerant performance.
Its digital subsystem integrates eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety logic; five SCBs enable runtime-reconfigurable I²C/SPI/UART/LIN protocols; and the dedicated CAN 2.0B block supports time-triggered operation with configurable bit timing and error counters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables deterministic real-time control with Thumb-2 instruction set and NVIC-based interrupt handling |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader storage and dual-bank firmware updates |
| ADC | 12-bit SAR, 1 Msps, differential mode - provides high-resolution sensor signal acquisition with hardware channel sequencing |
| CAPSENSE™ | Sigma-delta CSD with SmartSense auto-tuning - achieves >5:1 SNR and robust operation under wet/fogged conditions |
| CAN Interface | CAN 2.0B with TTCAN support - enables synchronized message transmission for distributed automotive control networks |
| Operating Temp | Grade-S: –40°C to +105°C - qualified for under-hood and cabin-mounted automotive ECUs |
| Low-Power Mode | Deep Sleep: 2.5 µA system current with opamps and comparators active - sustains capacitive wake-up and analog monitoring |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies enabling mixed-voltage GPIO interfacing and level-shifting |
| P0[0]–P0[7] | GPIO bank 0 | Support CAPSENSE™, analog input, or digital logic; configurable drive strength and slew rate |
| P1[0]–P1[7] | GPIO bank 1 | Includes CAN_TX/CAN_RX pins; supports LIN physical layer via SCB UART mode |
| XTAL_IN/XTAL_OUT | External crystal oscillator | Connects to 4–33 MHz ECO for precise clock generation and PLL reference |
| WCO_IN/WCO_OUT | Watch crystal oscillator | Drives 32.768 kHz RTC and low-power wakeup timing |
| SWDCK/SWDIO | ARM Serial Wire Debug | Enables non-intrusive debug, flash programming, and real-time trace without dedicated JTAG pins |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps with internal/external drive modes and Deep Sleep retention - enables always-on sensor front-end with <2.5 µA quiescent current |
| Capacitive Sensing Engine | CSD-based CAPSENSE™ with hardware-accelerated SmartSense tuning - eliminates manual calibration across temperature/humidity/voltage |
| Reconfigurable Serial Peripherals | Five SCBs supporting concurrent I²C master/slave, SPI slave, UART with LIN-compliant timing - reduces external transceiver count in multi-protocol gateways |
| Motor Control Logic | TCPWM blocks with comparator-triggered kill signals and quadrature decode - meets ISO 26262 ASIL-B functional safety requirements for actuator control |
| Secure Random Generation | True Random Number Generator (TRNG) - provides entropy source for AES key derivation in secure boot and OTA update workflows |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on vehicle door trim with proximity wake-up and anti-misoperation logic. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LIN communication to body control unit, and driving LED indicators. Use Value: Eliminates mechanical switches; supports water-tolerant UI with <5 ms response latency and <2.5 µA standby current. | Use Scenario: Touch-enabled HVAC interface with rotary encoder emulation and ambient light adaptive display dimming. IC Role / Device Role / Timing Role: System-on-chip handling touch sensing, PWM-controlled backlight, I²C-connected temperature sensors, and CAN bus status reporting. Use Value: Integrates analog sensing, digital control, and automotive networking in single QFN-48 package - reduces BOM count by 37% vs discrete solution. |
| Smart Rearview Mirror | Seat Position Memory Controller |
Use Scenario: Auto-dimming mirror with glare detection, touch gesture controls, and vehicle speed-linked dimming profiles. IC Role / Device Role / Timing Role: Real-time sensor fusion hub combining photodiode ADC readings, CAPSENSE™ gestures, and CAN-sourced vehicle speed data. Use Value: Achieves <100 µs ADC sampling jitter and sub-50 ms gesture-to-action latency using on-die DMA and hardware sequencer. | Use Scenario: Motorized seat position memory with multi-point calibration, CAN-based recall commands, and EEPROM-backed profile storage. IC Role / Device Role / Timing Role: Dedicated motion controller managing H-bridge drivers, current-sense feedback, and nonvolatile parameter storage. Use Value: Uses integrated IDACs for precision current sensing and TCPWM dead-time insertion - ensures ASIL-B compliant motor stop behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZE-S445 | Same core, 64 KB flash / 8 KB SRAM, no CAN block, QFN-48 | Lacks CAN 2.0B/TTCAN; suitable for LIN-only body nodes without network synchronization needs | Select when CAN is unnecessary and cost-sensitive LIN-based systems require CAPSENSE™ + TCPWM only |
| SPC560B50L5 | Power Architecture e200z0, 64 MHz, 512 KB flash, 48 KB RAM, dual CAN, but no integrated CAPSENSE™ | Requires external touch controller; higher power, larger footprint, mature ASIL-B certification path | Choose for legacy Power Architecture migration or where certified ASIL-B software stack maturity outweighs integration benefits |
Compared with CY8C4146AZE-S455T, CY8C4147AZE-S445 trades CAN and memory for lower cost in LIN-only nodes, while SPC560B50L5 offers stronger ASIL-B toolchain support but adds BOM complexity and lacks on-die capacitive sensing.
Availability
CY8C4146AZE-S455T is available at Aetrix Electronics and suitable for automotive body electronics, capacitive human-machine interfaces, and CAN-based distributed control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146AZE-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 MCUs, radar, and security ICs, with global manufacturing and R&D centers.
This part belongs to the PSoC™ 4100S Plus product line - engineered for automotive-grade programmable embedded systems requiring integrated analog sensing, capacitive UI, and CAN/LIN networking in compact QFN packages.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4146AZE-S455T?
The CY8C4146AZE-S455T operates its Arm® Cortex®-M0+ CPU at a maximum frequency of 48 MHz, achieved via internal PLL multiplication of the 4–33 MHz external crystal oscillator (ECO) or ±2% internal main oscillator (IMO). This frequency is fully supported across the full Grade-S temperature range (–40°C to +105°C) and all voltage rails (1.71–5.5 V).
Does CY8C4146AZE-S455T support true hardware-based capacitive touch sensing without external components?
Yes - it integrates a dedicated capacitance-sensing delta-sigma (CSD) block with SmartSense auto-tuning, enabling robust CAPSENSE™ operation directly on any GPIO pin without external RC networks or calibration firmware. Hardware-accelerated baseline tracking and noise rejection deliver >5:1 SNR and immunity to water, condensation, and EMI per AEC-Q100 test conditions.
Can the CAN peripheral operate in time-triggered mode (TTCAN) and what configuration is required?
Yes - the integrated CAN 2.0B block supports TTCAN with programmable time windows, synchronized message transmission, and freeze frame capability. Configuration requires setting the TTCAN enable bit in the CAN control register, defining time quanta via BRP and TSEG fields, and enabling the time-triggered interrupt flag. No external timing source is needed - the WCO or PLL-derived clock serves as time base.
What debug interface does CY8C4146AZE-S455T use and is SWD compatible with standard ARM tools?
CY8C4146AZE-S455T uses ARM Serial Wire Debug (SWD) via dedicated SWDCK and SWDIO pins, fully compliant with ARM CoreSight standards. It is natively supported by Infineon's ModusToolbox™, PSoC™ Creator, and third-party tools including Keil MDK, IAR Embedded Workbench, and OpenOCD - enabling flash programming, real-time variable inspection, and breakpoint debugging without JTAG header overhead.
CY8C4146AZE-S455T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, 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, 16x12b SAR; D/A 2x7b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZE-S455T FAQ
1.How can I place an order for CY8C4146AZE-S455T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZE-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 CY8C4146AZE-S455T reliable?
The price and inventory of CY8C4146AZE-S455T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZE-S455T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZE-S455T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZE-S455T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZE-S455T?
CY8C4146AZE-S455T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZE-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 CY8C4146AZE-S455T?
For technical support, including CY8C4146AZE-S455T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZE-S455T requirements.
6.How does Aetrix verify that CY8C4146AZE-S455T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZE-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 CY8C4146AZE-S455T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZE-S455T?
All CY8C4146AZE-S455T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZE-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 CY8C4146AZE-S455T part is unused and in its original packaging.
Return procedure for CY8C4146AZE-S455T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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