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Infineon Technologies CY8C4146AZE-S275T
- Part No.:
- CY8C4146AZE-S275T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZE-S275T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CY8C4146AZE-S275T 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 (I²C/SPI/UART/LIN), a CAN 2.0B interface with TTCAN support, and eight 16-bit TCPWM units - deployed in automotive body control modules, smart HVAC interfaces, and touch-enabled dashboard systems.
For engineers reviewing the CY8C4146AZE-S275T datasheet, CY8C4146AZE-S275T pinout, CY8C4146AZE-S275T application, or CY8C4146AZE-S275T equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR > 5:1 with water tolerance, CAN 2.0B + TTCAN timing compliance, Deep Sleep current of 2.5 µA with analog retention, and full ModusToolbox™/PSoC™ Creator toolchain support for rapid capacitive-sensing firmware development.
Technical Context
The device integrates a programmable analog subsystem with two opamps (supporting ADC input buffering and Deep Sleep operation), a 12-bit 1-Msps SAR ADC with channel sequencer and averaging, and dual low-power comparators. Its digital fabric includes Smart I/O logic blocks for Boolean port-level operations and eight TCPWM units supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety.
Clock architecture combines a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO - all feeding a PLL that locks to generate the precise 48-MHz system clock. The CAN block implements full CAN 2.0B with time-triggered extensions (TTCAN), enabling deterministic message scheduling required for ASIL-B–compatible vehicle networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - delivers real-time deterministic execution for automotive control loops with <100 ns interrupt latency. |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader storage, OTA update partitioning, and dual-bank firmware swapping. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SNR > 5:1 and hardware SmartSense tuning - enables robust touch buttons/sliders under condensation, glove, or wet conditions without firmware calibration. |
| CAN Interface | CAN 2.0B + TTCAN - provides time-triggered message scheduling, error confinement, and bus-off recovery for ASIL-B–aligned network nodes. |
| Power Modes | Deep Sleep: 2.5 µA with opamp/ADC active - sustains capacitive wake-on-touch and analog monitoring while preserving battery life in always-on vehicle domains. |
| GPIO | Up to 54 pins, all configurable as CAPSENSE™/analog/digital - eliminates external routing logic and enables single-chip integration of touch, sensing, and actuation in compact ECUs. |
| Temperature Grade | AEC-Q100 Grade-S (–40°C to +105°C) - qualified for under-hood and instrument cluster mounting locations per automotive thermal profiles. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for automotive-grade thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply banks | Independent 1.71–5.5 V rails per bank - enables mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor inputs). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All pins support CAPSENSE™ CSD, analog input/output, high-drive digital output (25 mA), and slew-rate control - no fixed-function pin constraints. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Internal differential driver/receiver with bus fault protection - connects directly to external CAN PHY without level-shifting or discrete termination. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 4–33 MHz ECO for high-accuracy timing - essential for CAN bit timing stability and LIN synchronization. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC operation and low-power wake-up events during Deep Sleep - critical for periodic sensor polling without CPU wake. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration adjusts baseline, IDAC, and filtering parameters dynamically - eliminates manual tuning across temperature/humidity variations. |
| TTCAN Timing Compliance | Hardware timestamping and schedule table management enable deterministic CAN frame transmission within ±1 µs jitter - meets ISO 11898-1:2015 TTCAN requirements. |
| Deep Sleep Analog Retention | Opamps, comparators, and SAR ADC remain powered and functional at 2.5 µA system current - allows continuous touch detection or voltage monitoring without full wake-up. |
| Reconfigurable SCBs | Five serial blocks each support run-time switching between I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and PCB footprint in multi-protocol gateways. |
| Programmable Smart I/O | Boolean logic (AND/OR/XOR) applied directly to GPIO inputs/outputs - implements debounce, edge detection, or signal conditioning without CPU intervention or firmware overhead. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Integrated door ECU managing window lift, mirror fold, lock actuation, and interior lighting via LIN/CAN. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave protocol, driving H-bridge gate drivers, and sampling capacitive touch switches for window/mirror controls. Use Value: Single-chip integration replaces discrete MCU + touch controller + LIN transceiver - reduces component count by 40% and enables seamless wake-on-touch from Deep Sleep. |
Use Scenario: Touch-sensitive HVAC interface with ambient light sensing, fan speed control, and cabin temperature feedback. IC Role / Device Role / Timing Role: CAPSENSE™-enabled HMI controller with SAR ADC reading NTC thermistors, TCPWM driving DC blower motors, and SCB handling I²C sensor reads. Use Value: Hardware SmartSense maintains button responsiveness across condensation and glove use - eliminating false triggers and field returns in humid cabin environments. |
| Instrument Cluster Display Driver | Seat Position Memory System |
Use Scenario: Digital gauge cluster with segmented LCD display, warning indicators, and CAN-based vehicle data acquisition. IC Role / Device Role / Timing Role: LCD segment driver (via GPIO), CAN node for speed/RPM/tachometer data, and TCPWM generating backlight dimming PWM. Use Value: On-die LCD drive capability eliminates external segment drivers - reducing layer count and EMI emissions in space-constrained cluster PCBs. |
Use Scenario: Memory seat controller storing position profiles and actuating linear motors for seat fore/aft, recline, and lumbar adjustment. IC Role / Device Role / Timing Role: Motor control MCU with quadrature-decoded potentiometer feedback, CAN command interface, and EEPROM-backed profile storage. Use Value: Quadrature decoder hardware in TCPWM blocks offloads CPU from position tracking - ensures sub-millimeter repeatability and zero firmware latency in motor stop detection. |
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, 512 KB flash, CAN FD, no integrated CAPSENSE™ - requires external touch controller. | Targeted at higher-performance powertrain/safety domains; lacks hardware touch tuning and Deep Sleep analog retention. | Select when CAN FD bandwidth or floating-point math is required; avoid if capacitive HMI is primary function. |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz, 256 KB flash, CAN 2.0B only, no TTCAN or hardware SmartSense. | Focused on cost-sensitive body electronics; limited analog flexibility and no sigma-delta CAPSENSE™ SNR advantage. | Choose for legacy 16-bit migration or ultra-low-cost entry-tier modules where touch performance is secondary. |
Compared with S32K144W and RL78/F14, CY8C4146AZE-S275T uniquely delivers certified automotive touch HMI capability in a single die - combining AEC-Q100 Grade-S operation, hardware SmartSense, TTCAN, and 2.5 µA Deep Sleep analog retention - making it optimal for next-gen vehicle interior interfaces where integration, reliability, and power efficiency are co-prioritized.
Availability
CY8C4146AZE-S275T is available at Aetrix Electronics and suitable for automotive body control modules, climate control panels, digital instrument clusters, and seat memory systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146AZE-S275T 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 over 30 years of automotive qualification expertise and AEC-Q100 leadership.
CY8C4146AZE-S275T belongs to the PSoC™ 4100S Plus product line, engineered specifically for automotive human-machine interface (HMI) and body electronics applications demanding integrated capacitive sensing, functional safety-ready peripherals, and AEC-Q100-compliant low-power operation.
FAQ
Does CY8C4146AZE-S275T support CAN FD?
No. This device implements CAN 2.0B with optional time-triggered extensions (TTCAN), but does not support CAN FD data rates or flexible data-length frames. CAN FD capability requires Infineon's AURIX™ or newer PSoC™ 6 automotive MCUs. For designs requiring >1 Mbps throughput or payload expansion beyond 8 bytes, a migration path to SAK-TC397 or CY8C6xxA is recommended.
What development tools are officially supported for firmware development?
Infineon officially supports two IDEs: PSoC™ Creator (Windows-only, schematic-driven design with automatic analog/digital routing) and ModusToolbox™ (cross-platform, Eclipse-based, CLI-configurable). Both provide full CAPSENSE™ tuning GUIs, TCPWM configuration wizards, and CAN register-level APIs. Third-party tools like Keil MDK or IAR Embedded Workbench require manual peripheral initialization and lack SmartSense integration.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No. The SAR ADC uses a single conversion engine with a hardware channel sequencer and configurable averaging per channel - it performs sequential conversions with programmable inter-channel delay. True simultaneous sampling requires external parallel ADCs or devices with multiple independent SAR cores, such as Infineon's XMC7000 series.
How is AEC-Q100 Grade-S qualification verified for this part number?
CY8C4146AZE-S275T is tested per AEC-Q100 Rev-H stress test conditions including HTOL (1000 hrs at 125°C junction), TC (1000 cycles –40°C to +125°C), and ESD (HBM ±2 kV, CDM ±1 kV). Test reports are available under NDA from Infineon's Automotive Quality portal; qualification applies specifically to the 48-pin QFN package variant with exposed thermal pad and specified assembly process flow.
CY8C4146AZE-S275T 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:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, Temp Sensor, 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-S275T FAQ
1.How can I place an order for CY8C4146AZE-S275T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZE-S275T 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-S275T reliable?
The price and inventory of CY8C4146AZE-S275T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZE-S275T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZE-S275T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZE-S275T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZE-S275T?
CY8C4146AZE-S275T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZE-S275T 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-S275T?
For technical support, including CY8C4146AZE-S275T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZE-S275T requirements.
6.How does Aetrix verify that CY8C4146AZE-S275T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZE-S275T 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-S275T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZE-S275T?
All CY8C4146AZE-S275T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZE-S275T, 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-S275T part is unused and in its original packaging.
Return procedure for CY8C4146AZE-S275T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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