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Infineon Technologies CY8C4546AXI-S475
- Part No.:
- CY8C4546AXI-S475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4546AXI-S475.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,937
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Product details
Overview
CY8C4546AXI-S475 from Infineon is a PSoC™ 4500S-series 32-bit Arm® Cortex®-M0+ microcontroller with 256 KB flash, 32 KB SRAM, and integrated CAPSENSE™ capacitive sensing. It features dual 12-bit 1-Msps SAR ADCs, four reconfigurable opamps, five reconfigurable Serial Communication Blocks (SCBs), and eight TCPWM blocks. Used in industrial HMI, smart appliance touch interfaces, and motor control systems requiring embedded analog-digital co-processing.
For engineers reviewing the CY8C4546AXI-S475 datasheet, CY8C4546AXI-S475 pinout, CY8C4546AXI-S475 application, or CY8C4546AXI-S475 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), 48-MHz CPU clock, programmable GPIO drive modes, and hardware-accelerated Field Oriented Control (FOC) support.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with configurable analog (opamps, SAR ADCs, IDACs, comparators) and digital (PLD, TCPWM, SCB) subsystems routed via automatic interconnect fabric. Its CAPSENSE™ sigma-delta engine delivers >5:1 signal-to-noise ratio with SmartSense auto-tuning, and the MCA block provides dedicated square-root/divide acceleration for real-time FOC and PFC algorithms.
Power management includes Deep Sleep mode with active analog operation at 2.5 µA system current, supported by multiple clock sources: 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 40-kHz ILO. All 53 GPIOs support CapSense, analog, or digital functions with programmable drive strength and slew rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max, single-cycle multiply |
| Memory | 256 KB flash with Read Accelerator; 32 KB SRAM |
| Analog Peripherals | Dual 12-bit 1-Msps SAR ADCs with sequencer & averaging; four opamps with Deep Sleep operation |
| Digital Peripherals | Five SCBs (I²C/SPI/UART); eight 16-bit TCPWM blocks with quadrature decode & kill-signal triggering |
| Capacitive Sensing | CAPSENSE™ sigma-delta engine with >5:1 SNR and SmartSense auto-tuning |
| Power Range | 1.71 V to 5.5 V supply; Deep Sleep current = 2.5 µA with analog active |
| GPIO Count | 53 programmable pins; all support CapSense, analog, or digital roles |
Pinout & Package
Package: 48-pin TQFP (0.5-mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital and analog subsystems |
| VSS | Ground reference | Digital and analog common return; requires low-impedance PCB connection |
| P0[0]–P0[7] | Programmable GPIO bank | Support CapSense, analog input/output, or digital logic with configurable drive/slew |
| P1[0]–P1[7] | Programmable GPIO bank | Same functionality as P0; supports high-speed PWM output and quadrature decoding |
| SWDCLK / SWDIO | Arm Serial Wire Debug interface | Two-pin debug port enabling full on-chip programming and real-time firmware debugging |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up; debounced in hardware |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz crystal; required for precise timing and USB clock derivation |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Four opamps usable as buffers, comparators, or ADC front-ends - all operable in Deep Sleep mode |
| Hardware Motor Control Acceleration | Dedicated MCA block executes sqrt() and divide in one cycle, accelerating FOC/PFC loop execution |
| Capacitive Sensing Performance | Sigma-delta CAPSENSE™ achieves >5:1 SNR and water-tolerant operation without external shielding |
| Flexible Serial Connectivity | Five SCBs independently configurable as I²C master/slave, SPI master/slave, or UART with runtime reconfiguration |
| Low-Power System Operation | 2.5 µA Deep Sleep current with active analog sensing and wake-on-CapSense event |
Applications
| Industrial Human-Machine Interface | Smart Appliance Touch Panel |
|---|---|
Use Scenario: Operator panel on PLC-controlled machinery with metal enclosure and variable EMI. IC Role / Device Role / Timing Role: MCU + CAPSENSE™ controller handling button/slider inputs, LED feedback, and real-time CAN bus communication. Use Value: >5:1 SNR and SmartSense auto-tuning enable reliable touch detection despite metal proximity and noise. | Use Scenario: Waterproof touch interface on refrigerator door with condensation and glove operation. IC Role / Device Role / Timing Role: Single-chip touch controller and system manager executing sensor fusion and display driver logic. Use Value: Water-tolerant CAPSENSE™ and 2.5 µA Deep Sleep extend battery life in wireless variants while maintaining responsiveness. |
| Brushless DC Motor Controller | Energy Monitoring Gateway |
Use Scenario: Compact fan or pump drive with field-oriented control and thermal protection. IC Role / Device Role / Timing Role: Real-time motor controller using MCA-accelerated FOC, six-channel PWM, and analog current sensing. Use Value: Hardware sqrt()/divide reduces FOC loop latency to <1.5 µs, enabling 30 kHz PWM switching with stable torque. | Use Scenario: DIN-rail mounted energy meter aggregating CT/PT analog inputs and communicating via RS-485. IC Role / Device Role / Timing Role: Data acquisition hub with dual SAR ADCs, precision voltage references, and isolated UART interface. Use Value: Simultaneous sampling across dual 12-bit ADCs enables synchronized voltage/current capture for accurate power factor calculation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4547AZI-S475 | 64-pin TQFP package; adds 8 more GPIOs and one extra SCB | Suitable for designs needing expanded serial connectivity or larger HMI matrix | Select when pin count or peripheral count exceeds CY8C4546AXI-S475 capacity |
| CY8C4548LQI-S475 | QFN-68 package; higher thermal performance; same peripherals | Better suited for space-constrained, thermally demanding motor control PCBs | Prefer for compact industrial drives where thermal dissipation and board area are critical |
Compared with CY8C4547AZI-S475 and CY8C4548LQI-S475, the CY8C4546AXI-S475 offers optimal cost and footprint for mid-complexity CapSense + motor control applications in 48-pin TQFP, balancing GPIO count, thermal profile, and layout simplicity.
Availability
CY8C4546AXI-S475 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance interfaces, BLDC motor controllers, and energy monitoring gateways requiring stable component supply and long-term manufacturability.
Supply support for CY8C4546AXI-S475 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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded controllers, with global R&D and manufacturing infrastructure.
The PSoC™ 4500S product line targets cost-sensitive, high-integration embedded applications requiring concurrent analog sensing, digital control, and capacitive user interfaces - especially where design flexibility and rapid prototyping are essential.
FAQ
What development tools are officially supported for CY8C4546AXI-S475?
Infineon officially supports both ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only, schematic-driven IDE). The CY8CKIT-045S Pioneer Kit provides hardware validation, and MiniProg4 enables programming/debugging via SWD. Both toolchains include BSPs, PDL drivers, and CAPSENSE™ middleware.
Does CY8C4546AXI-S475 support USB connectivity?
No, CY8C4546AXI-S475 does not integrate a USB PHY or controller. It relies on external USB-UART bridges (e.g., CP2102) or host-side USB protocol translation. USB functionality is available only in higher-tier PSoC™ 4 families like the 4200 series with dedicated USBFS blocks.
Can the on-chip opamps be used for precision sensor signal conditioning?
Yes - each of the four opamps supports rail-to-rail input/output, programmable gain (1× to 8×), and operation down to 1.71 V supply. They are specified for input offset voltage ≤3 mV and GBW ≥5 MHz, making them suitable for conditioning signals from RTDs, strain gauges, or bridge sensors before ADC conversion.
Is flash memory encryption or secure boot available on this device?
CY8C4546AXI-S475 supports flash write protection and debug lock via firmware-controlled registers, but lacks hardware AES encryption engines or secure boot ROM. Secure firmware updates require external crypto co-processors or software-based signature verification using the onboard SHA-256 accelerator in the system resources block.
CY8C4546AXI-S475 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4500
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- 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:
- 53
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4546AXI-S475 FAQ
1.How can I place an order for CY8C4546AXI-S475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4546AXI-S475 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 CY8C4546AXI-S475 reliable?
The price and inventory of CY8C4546AXI-S475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4546AXI-S475 is usually 5 days.
3.What payment methods are accepted for CY8C4546AXI-S475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4546AXI-S475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4546AXI-S475?
CY8C4546AXI-S475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4546AXI-S475 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 CY8C4546AXI-S475?
For technical support, including CY8C4546AXI-S475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4546AXI-S475 requirements.
6.How does Aetrix verify that CY8C4546AXI-S475 is sourced from the original manufacturer or authorized distributors?
All CY8C4546AXI-S475 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 CY8C4546AXI-S475 meets industry standards.
7.What is the process for return or replacement of CY8C4546AXI-S475?
All CY8C4546AXI-S475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4546AXI-S475, 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 CY8C4546AXI-S475 part is unused and in its original packaging.
Return procedure for CY8C4546AXI-S475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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