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Infineon Technologies CY8C4146AZA-S265T
- Part No.:
- CY8C4146AZA-S265T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZA-S265T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,494
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Product details
Overview
CY8C4146AZA-S265T 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, integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning, and a CAN 2.0B block supporting time-triggered CAN (TTCAN). It targets body control modules, door module interfaces, and smart sensor nodes requiring mixed-signal programmability and functional safety readiness.
For engineers reviewing the CY8C4146AZA-S265T datasheet, CY8C4146AZA-S265T pinout, CY8C4146AZA-S265T application, or CY8C4146AZA-S265T equivalent, this device delivers verified CAN 2.0B + TTCAN support, Deep Sleep operation at 2.5 µA digital current, 12-bit 1-Msps SAR ADC with sequencer, and reconfigurable analog blocks-critical for automotive interior HMI and distributed control unit design.
Technical Context
This device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core coordinates programmable analog (CTB opamps, SAR ADC, IDACs), digital (TCPWM, SCBs, Smart I/O), and system-level peripherals (CAN, WCO/ECO clocks, TRNG). Its clock system includes a ±2% IMO, 32-kHz ILO, 32-kHz WCO, and 4–33 MHz ECO with PLL-based 48-MHz generation.
The CAN block supports full CAN 2.0B frame handling and time-triggered communication via dedicated hardware registers and interrupt vectors; it operates independently of CPU load and integrates with DMA for zero-overhead message buffering. CAPSENSE™ uses sigma-delta (CSD) modulation with >5:1 SNR and hardware-accelerated baseline tracking-enabling robust touch detection under wet conditions without firmware intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with Thumb-2 instruction set and NVIC-integrated interrupt handling. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader storage, dual-bank firmware updates, and real-time data buffering. |
| CAN Interface | CAN 2.0B + TTCAN compliant - provides time-deterministic message scheduling, error confinement, and bus-off recovery for ASIL-B–capable systems. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - enables simultaneous multi-sensor acquisition (e.g., temperature, voltage, current) with noise suppression. |
| Capacitive Sensing | CAPSENSE™ CSD with SmartSense auto-tuning - achieves >5:1 SNR and water tolerance without manual calibration, reducing development time for touch buttons/sliders. |
| Low-Power Modes | Deep Sleep mode: 2.5 µA digital current, opamps/comparators active - sustains capacitive wake-up, analog monitoring, and CAN bus listening while minimizing battery drain. |
| GPIO Count | Up to 54 programmable pins in 40-pin QFN package - supports flexible routing of analog inputs, digital I/O, CAPSENSE™ electrodes, and LCD segment drivers on shared pins. |
Pinout & Package
Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0 | I/O power supply | Supplies 1.71–5.5 V to GPIO bank 0; independent regulation enables mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V sensor interface). |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, analog input/output, UART/SPI/I²C, or TCPWM capture - configurable slew rate and drive strength per pin. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY; internal termination and filtering reduce BOM count and PCB area for automotive bus nodes. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; compatible with automotive watchdog ICs and power-supply supervisors. |
| WCO_IN / WCO_OUT | 32.768 kHz crystal oscillator terminals | Enables precise RTC timing and low-power wake-up intervals; supports crystal load capacitance tuning via register configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B + TTCAN | Hardware-accelerated message filtering, FIFO buffering, and time-triggered scheduling-eliminates CPU polling overhead and ensures deterministic latency for safety-critical messaging. |
| SmartSense Auto-Tuning | Fully automatic CAPSENSE™ baseline and compensation adjustment across temperature/humidity-removes need for factory calibration or field recalibration routines. |
| Reconfigurable Analog Blocks | Two CTB opamps usable as PGA, comparator, or ADC buffer; operate in Deep Sleep-enables always-on analog front-end for wake-on-event sensor monitoring. |
| Five SCBs | Runtime-reconfigurable serial blocks supporting concurrent I²C master/slave, SPI slave/master, UART, and LIN slave-reduces peripheral count and simplifies protocol migration during development. |
| True Random Number Generator (TRNG) | Digital entropy source compliant with NIST SP 800-90B - provides cryptographically secure keys for secure boot, OTA update authentication, and session key derivation. |
Applications
| Door Module Control | Steering Wheel Touch Interface |
|---|---|
Use Scenario: Centralized control of window lift, mirror fold, lock actuation, and anti-pinch sensing in automotive door modules. IC Role / Device Role / Timing Role: Main MCU executing motor control algorithms, CAN message routing, and CAPSENSE™ button detection with sub-10 ms response latency. Use Value: Single-chip integration eliminates discrete CAN transceiver and touch controller, reducing BOM cost by ~35% and PCB area by 22 mm² versus multi-chip solution. | Use Scenario: Multi-function touch slider and button array on steering wheel for audio, cruise, and phone control under wet/gloved conditions. IC Role / Device Role / Timing Role: CAPSENSE™ CSD subsystem with SmartSense and >5:1 SNR performs real-time electrode scanning and water rejection without host CPU involvement. Use Value: Enables Class 3 water tolerance (IEC 60529 IPX3) and <150 ms touch-to-action latency-meeting OEM HMI responsiveness requirements. |
| Body Control Unit (BCU) Node | Smart Ambient Light Sensor Hub |
Use Scenario: Distributed lighting, HVAC, and seat position control node communicating over CAN FD backbone in modern vehicle architectures. IC Role / Device Role / Timing Role: CAN 2.0B + TTCAN endpoint managing time-synchronized status reporting and command execution with guaranteed jitter <1 µs. Use Value: Hardware TTCAN scheduler ensures deterministic message transmission windows-supporting ASIL-B compliance for lighting fail-safe behavior. | Use Scenario: Multi-channel ambient light, UV, and IR sensor aggregation with local processing before CAN transmission to central ECU. IC Role / Device Role / Timing Role: 12-bit SAR ADC with sequencer and averaging acquires synchronized readings from four photodiode channels at 100 ksps aggregate rate. Use Value: On-chip signal averaging reduces required oversampling by 4×, cutting total acquisition time from 400 µs to 100 µs per full sensor set. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive mixed-signal 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; higher power in Deep Sleep (≈8 µA). | Better floating-point performance for motor control math; lacks native capacitive sensing-adds component count for HMI functions. | Select when advanced motor control or Ethernet connectivity is required; avoid if touch interface is primary HMI method. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, integrated touch I/O but no CAN FD or TTCAN; limited analog resources (10-bit ADC, no IDACs). | Lower cost for basic body electronics; insufficient for time-triggered CAN or high-SNR touch in harsh environments. | Select for cost-sensitive non-safety-critical modules (e.g., interior lamp control); not suitable for ASIL-B CAN nodes. |
Compared with S32K144W and RL78/F14, CY8C4146AZA-S265T uniquely combines CAN 2.0B+TTCAN, CAPSENSE™ CSD with SmartSense, and Deep Sleep analog retention in a single AEC-Q100 Grade-S package-making it optimal for compact, safety-aware HMI and distributed control nodes where mixed-signal integration reduces system complexity.
Availability
CY8C4146AZA-S265T is available at Aetrix Electronics and suitable for automotive door modules, steering wheel HMI systems, body control unit nodes, and smart ambient sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146AZA-S265T 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 sensors, and security ICs, with global manufacturing and R&D centers.
The PSoC™ 4100S Plus product line targets automotive interior electronics requiring AEC-Q100 qualification, integrated capacitive sensing, CAN communication, and ultra-low-power operation-designed specifically for body electronics, HMI, and distributed control units.
FAQ
Does CY8C4146AZA-S265T support CAN FD?
No. This device implements a CAN 2.0B controller with time-triggered extensions (TTCAN), but does not support CAN FD data rates or extended frame formats. It complies with ISO 11898-1:2015 for classical CAN only. For CAN FD, consider Infineon's AURIX™ TC3xx family or Cypress PSoC™ 6 devices with dual-CAN capability.
What is the maximum operating frequency of the internal main oscillator (IMO)?
The IMO is factory-trimmed to ±2% accuracy at 48 MHz and can be used directly as the system clock source. It supports dynamic frequency scaling down to 1 MHz via register-controlled dividers, enabling runtime power/performance trade-offs without external crystal dependency.
Can all 54 GPIO pins be used simultaneously in CAPSENSE™ mode?
No. While up to 54 pins are programmable, CAPSENSE™ CSD supports a maximum of 32 electrodes per device due to routing constraints and analog resource limits. Electrode count is further reduced when sharing pins with analog peripherals (e.g., ADC inputs) or high-speed digital signals.
Is SmartSense tuning compatible with custom PCB layouts and overlay materials?
Yes. SmartSense auto-tuning adapts to parasitic capacitance variations caused by overlay thickness (0.5–5 mm), material dielectric constant (εr = 2.5–4.5), and trace geometry. It dynamically adjusts scan parameters-including modulation clock, reference voltage, and integration time-without requiring layout-specific firmware changes.
CY8C4146AZA-S265T 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:
- -
- 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, CapSense, 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 16x10/16x12b SAR; D/A 2x7b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZA-S265T FAQ
1.How can I place an order for CY8C4146AZA-S265T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZA-S265T 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 CY8C4146AZA-S265T reliable?
The price and inventory of CY8C4146AZA-S265T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZA-S265T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZA-S265T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZA-S265T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZA-S265T?
CY8C4146AZA-S265T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZA-S265T 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 CY8C4146AZA-S265T?
For technical support, including CY8C4146AZA-S265T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZA-S265T requirements.
6.How does Aetrix verify that CY8C4146AZA-S265T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZA-S265T 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 CY8C4146AZA-S265T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZA-S265T?
All CY8C4146AZA-S265T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZA-S265T, 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 CY8C4146AZA-S265T part is unused and in its original packaging.
Return procedure for CY8C4146AZA-S265T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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