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Infineon Technologies CY8C4146AZI-S443T
- Part No.:
- CY8C4146AZI-S443T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4146AZI-S443T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,715
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Product details
Overview
CY8C4146AZI-S443T from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive touch sensing. It features five reconfigurable serial communication blocks (SCBs), eight 16-bit TCPWM units, and a CAN 2.0B controller supporting TTCAN-deployed in industrial HMI and smart appliance control systems.
For engineers reviewing the CY8C4146AZI-S443T datasheet, CY8C4146AZI-S443T pinout, CY8C4146AZI-S443T application, or CY8C4146AZI-S443T equivalent, key selection criteria include Deep Sleep current (2.5 µA), 48 MHz CPU clock, 1-Msps 12-bit SAR ADC, programmable analog blocks, and TQFP-44 package compatibility with CAPSENSE™ routing constraints.
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ core operating at up to 48 MHz, supported by PLL-based clock generation and multiple low-power oscillators (IMO, ILO, WCO, ECO). Its system-level architecture enables concurrent firmware/hardware co-design via PSoC™ Creator or ModusToolbox™.
Analog subsystem includes two opamps with Deep Sleep operation, 12-bit SAR ADC with channel sequencer and averaging, dual IDACs, and CSD-based capacitive sensing with SmartSense auto-tuning. Digital resources comprise programmable logic blocks, eight TCPWMs with quadrature decode and kill-signal triggering, and five SCBs configurable as I²C/SPI/UART.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control in motor drives and sensor fusion. |
| Flash / SRAM | 128 KB flash with read accelerator / 16 KB SRAM - supports complex firmware with CAPSENSE™ tuning and communication stacks. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution analog acquisition for battery monitoring or environmental sensing. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with >5:1 SNR and water tolerance - enables robust touch interfaces in wet or noisy environments. |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - provides deterministic, fault-tolerant communication for industrial automation networks. |
| Low-Power Modes | Deep Sleep mode with 2.5 µA digital system current and operational analog - extends battery life in portable or energy-harvesting applications. |
| GPIO Count | Up to 54 programmable pins in TQFP packages - allows flexible I/O mapping for mixed-signal routing and CAPSENSE™ electrode assignment. |
Pinout & Package
Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, lead-free, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and GPIO drivers. |
| VSS | Digital ground | Reference return path for digital circuitry and SWD debug interface. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, analog input/output, SCB functions, or TCPWM capture - configurable drive strength/slew rate. |
| P1[0]–P1[7] | Programmable GPIO | Same capabilities as Port 0; used for secondary SCB, IDAC output, or comparator inputs. |
| SWDCLK / SWDIO | Debug interface | Arm® Serial Wire Debug signals - enable on-chip programming, breakpoint debugging, and trace without external pods. |
| XRES | External reset | Active-low asynchronous reset input - initiates cold boot or recovers from lockup conditions. |
| XTAL_IN / XTAL_OUT | Crystal oscillator | Connects 4–33 MHz external crystal for precise timing; enables ECO-based clock source for CAN and USB synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps with Deep Sleep operation, internal/external drive modes, and ADC input buffering - reduce BOM count and enable sensor signal conditioning without external amplifiers. |
| Reconfigurable SCBs | Five independent serial blocks supporting runtime I²C/SPI/UART reconfiguration - simplify multi-protocol communication in field-upgradable devices. |
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration - eliminates manual tuning effort and ensures consistent touch performance across temperature and humidity variations. |
| True Random Number Generator (TRNG) | Dedicated hardware entropy source - enables secure key generation for cryptographic operations in IoT edge nodes. |
| Quadrature Decoder | Built-in TCPWM-based quadrature decoding - directly interfaces rotary encoders for position/speed feedback in motor control without CPU overhead. |
Applications
| Industrial HMI Panels | Smart Home Appliances |
|---|---|
Use Scenario: Touch-enabled control panels in PLC cabinets or factory HMIs requiring water-resistant operation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing CAN bus communication with controllers, and driving local displays. Use Value: CSD-based touch with >5:1 SNR and SmartSense ensures reliable actuation under condensation or glove use. | Use Scenario: Washing machine or oven control with capacitive buttons, motor control, and BLE gateway connectivity. IC Role / Device Role / Timing Role: System-on-chip handling user interface, motor PWM, temperature sensing, and protocol translation between CAN and wireless modules. Use Value: Integrated TCPWM blocks with kill-signal triggering provide safe, responsive motor shutdown during fault events. |
| Energy Monitoring Devices | Medical Patient Interfaces |
Use Scenario: Portable power analyzers measuring voltage/current harmonics and logging data to SD card. IC Role / Device Role / Timing Role: High-precision analog front-end controller using 12-bit SAR ADC with channel sequencing and averaging. Use Value: 1-Msps sampling rate and programmable gain allow simultaneous acquisition of multiple sensor channels with noise suppression. | Use Scenario: Bedside patient monitors with touch controls, biopotential signal conditioning, and alarm management. IC Role / Device Role / Timing Role: Low-power MCU managing CAPSENSE™ UI, analog biosignal paths, and CAN-linked central station communication. Use Value: Deep Sleep mode with 2.5 µA system current extends battery runtime while maintaining touch responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S445 | Same core, 256 KB flash, 32 KB SRAM, identical peripheral set - higher memory density. | Suitable for larger firmware images (e.g., embedded GUIs or OTA update stacks). | Select when firmware size exceeds 128 KB or future scalability is required. |
| STM32G071KBT6 | Arm® Cortex®-M0+, 64 MHz, 128 KB flash, but no integrated CAPSENSE™ or CSD engine - requires external touch controller. | Applicable where touch is not needed or implemented externally; lower BOM cost in non-touch designs. | Choose when prioritizing cost over integrated analog/touch capability and external component integration is acceptable. |
Compared with CY8C4146AZI-S443T, CY8C4147AZI-S445 offers memory headroom for feature-rich firmware, while STM32G071KBT6 trades integrated CAPSENSE™ for broader ecosystem tooling and lower unit cost in non-capacitive applications.
Availability
CY8C4146AZI-S443T is available at Aetrix Electronics and suitable for industrial HMI panels, smart home appliances, energy monitoring devices, and medical patient interfaces requiring stable component supply and long-term design continuity.
Supply support for CY8C4146AZI-S443T 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 embedded security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4100S Plus product line, designed for cost-sensitive, low-power embedded systems requiring integrated analog, capacitive sensing, and programmable digital logic in a single chip.
FAQ
What development tools are officially supported for CY8C4146AZI-S443T?
Infineon officially supports both ModusToolbox™ software (cross-platform, IDE-neutral) and PSoC™ Creator (Windows-only, schematic-driven). ModusToolbox™ includes BSPs, PDL, CAPSENSE™ middleware, and Eclipse-based IDE; PSoC™ Creator provides drag-and-drop component configuration and automatic analog/digital routing. MiniProg4 is the recommended programmer/debugger.
Does CY8C4146AZI-S443T support secure firmware updates?
Yes - it includes flash protection mechanisms, debug disable capability, and a True Random Number Generator (TRNG) for cryptographic key generation. Secure boot is implementable via customer-defined bootloader logic leveraging flash write-protection and signature verification in application firmware.
Can all GPIO pins be used for CAPSENSE™ sensing simultaneously?
No - while any GPIO can be assigned to CAPSENSE™, practical limits depend on mutual capacitance, scan time, and SNR requirements. The CSD block supports up to 32 electrodes per scan group; full 54-pin usage requires segmentation, time-multiplexing, and layout optimization to maintain >5:1 SNR.
What is the maximum operating temperature range for this device?
CY8C4146AZI-S443T is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 5.2 ("Device level specifications") of the official datasheet (002-19966 Rev. *L), and applies to all operating modes including Deep Sleep and active CAN communication.
CY8C4146AZI-S443T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- 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, LCD, POR, PWM, WDT
- Number of I/O:
- 36
- 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; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZI-S443T FAQ
1.How can I place an order for CY8C4146AZI-S443T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZI-S443T 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 CY8C4146AZI-S443T reliable?
The price and inventory of CY8C4146AZI-S443T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZI-S443T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZI-S443T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZI-S443T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZI-S443T?
CY8C4146AZI-S443T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZI-S443T 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 CY8C4146AZI-S443T?
For technical support, including CY8C4146AZI-S443T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZI-S443T requirements.
6.How does Aetrix verify that CY8C4146AZI-S443T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZI-S443T 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 CY8C4146AZI-S443T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZI-S443T?
All CY8C4146AZI-S443T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZI-S443T, 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 CY8C4146AZI-S443T part is unused and in its original packaging.
Return procedure for CY8C4146AZI-S443T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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