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Infineon Technologies CY8C4547AZI-S473
- Part No.:
- CY8C4547AZI-S473
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4547AZI-S473.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,398
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Product details
Overview
CY8C4547AZI-S473 from Infineon is a 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 opamps, five reconfigurable SCBs (I²C/SPI/UART), and eight TCPWM blocks. Used in touch-enabled industrial HMI and motor control systems requiring high SNR sensing and real-time PWM coordination.
For engineers reviewing the CY8C4547AZI-S473 datasheet, CY8C4547AZI-S473 pinout, CY8C4547AZI-S473 application, or CY8C4547AZI-S473 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense sigma-delta SNR (>5:1), 48-MHz CPU clock, programmable analog routing, and 53 GPIO with configurable drive strength and slew rate.
Technical Context
The device implements a tightly coupled MCU subsystem with two Divide and Square Root accelerators supporting Field-Oriented Control (FOC) and Power Factor Correction (PFC). Its analog subsystem includes simultaneous-sampling SAR ADCs and opamps operable in Deep Sleep mode for always-on sensing.
Capacitive sensing uses a dedicated sigma-delta modulator with hardware SmartSense auto-tuning and water-tolerant performance. Digital logic is implemented via programmable logic blocks and fixed-function TCPWMs with comparator-triggered kill signals for motor safety-critical timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz - enables deterministic real-time control with single-cycle multiply |
| Flash / SRAM | 256 KB / 32 KB - supports complex firmware with bootloader, CapSense tuning, and communication stacks |
| ADC | Dual 12-bit, 1 Msps SAR - allows simultaneous sampling of voltage/current for motor phase monitoring |
| CapSense SNR | >5:1 sigma-delta - delivers robust touch detection under wet or noisy EMI conditions |
| Deep Sleep Current | 2.5 µA digital + operational analog - enables battery-powered touch interfaces with multi-year runtime |
| GPIO Count | 53 pins, all CapSense/analog/digital configurable - eliminates external signal conditioning for mixed-signal front ends |
| SCBs | 5 reconfigurable serial blocks - supports concurrent I²C sensor hub, UART debug, and SPI display interface |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5-mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V operation; decoupling required per analog/digital domain partitioning |
| VSS | Ground reference | Separate analog/digital ground pins support noise isolation for precision sensing |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense CSD, SAR ADC input, or SCB function; configurable drive strength up to 25 mA |
| P1[0]–P1[7] | Programmable GPIO | Include TCPWM outputs and quadrature decoder inputs for motor position feedback |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Supports 4–33 MHz ECO for precise timing; optional PLL lock for 48-MHz system clock |
| SWDIO / SWCLK | Serial Wire Debug | Standard Arm SWD interface for full-chip programming, tracing, and real-time debugging without external pods |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CapSense calibration eliminates manual firmware tuning across temperature/humidity |
| Motor Control Accelerator (MCA) | Dedicated sqrt/divide hardware reduces FOC loop execution time by >60% vs. software-only implementation |
| Programmable analog routing | Connect opamp outputs directly to SAR ADC inputs or IDACs without PCB traces, minimizing noise coupling |
| Reconfigurable SCBs | Runtime switching between I²C master/slave, SPI slave, and UART modes enables flexible peripheral expansion |
| Deep Sleep with active analog | Opamps and sigma-delta CapSense remain functional at 2.5 µA, enabling wake-on-touch with <100 µs latency |
Applications
| Industrial HMI Panel | Brushless DC Motor Controller |
|---|---|
Use Scenario: Touch-enabled operator interface on factory automation equipment with IP65-rated overlay. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, driving segmented LCD, and managing Modbus RTU over UART. Use Value: Single-chip integration eliminates external touch controller and LCD driver ICs; SmartSense maintains reliability under oil mist and condensation. | Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors in HVAC blowers. IC Role / Device Role / Timing Role: Real-time FOC executor using MCA hardware, ADC-sampled current feedback, and TCPWM-driven gate drivers. Use Value: Hardware sqrt/divide reduces current loop latency to <2 µs, enabling stable 20-kHz PWM switching with minimal phase lag. |
| Smart Home Appliance Control | Medical Pump Interface |
Use Scenario: Capacitive touch panel on washing machine control board with water splash tolerance. IC Role / Device Role / Timing Role: CapSense sigma-delta frontend with automatic baseline compensation and UART-connected main controller. Use Value: >5:1 SNR ensures false-touch immunity during detergent foam exposure and humid ambient conditions. | Use Scenario: Battery-powered infusion pump with tactile feedback and low-power standby mode. IC Role / Device Role / Timing Role: Low-power MCU managing touch UI, stepper motor sequencing, and fault-safe shutdown via comparator-triggered TCPWM kill signals. Use Value: 2.5 µA Deep Sleep with active CapSense enables >3-year battery life while maintaining instant wake-on-button press. |
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 |
|---|---|---|---|
| CY8C4546AZI-S473 | Same die, 128 KB flash (vs. 256 KB), identical peripherals and pinout | Limited firmware footprint for simpler CapSense + UART-only designs | Select when application code size fits within 128 KB and no bootloader + OTA update space required |
| CY8C4548AZI-S473 | Same die, 512 KB flash (vs. 256 KB), identical peripherals and pinout | Supports larger firmware images with multiple communication stacks and advanced motor algorithms | Select when future-proofing for feature expansion or dual-application firmware partitioning is needed |
Compared with CY8C4546AZI-S473 and CY8C4548AZI-S473, the CY8C4547AZI-S473 provides optimal balance of flash capacity (256 KB) for production-ready CapSense + motor control firmware while preserving margin for field updates and safety certification artifacts.
Availability
CY8C4547AZI-S473 is available at Aetrix Electronics and suitable for industrial HMI, BLDC motor drives, smart appliance controls, and medical device interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4547AZI-S473 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 MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4500S product line, designed specifically for cost-sensitive, high-integration embedded systems requiring both precision analog sensing and deterministic real-time control in a single chip.
FAQ
What debug interfaces does CY8C4547AZI-S473 support?
The device supports Arm Serial Wire Debug (SWD) only - no JTAG. SWD enables full programming, real-time tracing, and on-chip debugging using standard MiniProg4 or third-party SWD probes. Debug circuits are enabled by default but can be disabled in firmware; re-enabling requires full flash erase and reprogramming.
Does CY8C4547AZI-S473 support USB connectivity?
No, it lacks native USB PHY or USB controller hardware. Communication is limited to the five reconfigurable SCBs (I²C/SPI/UART). For USB host/device functionality, an external USB-to-UART bridge (e.g., CP2102N) or companion PSoC™ 6 device is required.
Can all 53 GPIO pins be used simultaneously for CapSense?
No - CapSense requires dedicated analog routing resources. Maximum supported CapSense electrodes is 32 with simultaneous scanning, constrained by sigma-delta modulator bandwidth and IDAC current limits. Pin count does not equal electrode count due to shared analog bus architecture.
What is the maximum operating temperature for CY8C4547AZI-S473?
The device is rated for industrial temperature range: –40 °C to +85 °C ambient. This is validated per datasheet Section 5.2 (Device-level specifications) and applies to continuous operation with proper PCB thermal design and voltage derating above 70 °C.
CY8C4547AZI-S473 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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:
- 38
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
CY8C4547AZI-S473 FAQ
1.How can I place an order for CY8C4547AZI-S473 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4547AZI-S473 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 CY8C4547AZI-S473 reliable?
The price and inventory of CY8C4547AZI-S473 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4547AZI-S473 is usually 5 days.
3.What payment methods are accepted for CY8C4547AZI-S473?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4547AZI-S473 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4547AZI-S473?
CY8C4547AZI-S473 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4547AZI-S473 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 CY8C4547AZI-S473?
For technical support, including CY8C4547AZI-S473 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4547AZI-S473 requirements.
6.How does Aetrix verify that CY8C4547AZI-S473 is sourced from the original manufacturer or authorized distributors?
All CY8C4547AZI-S473 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 CY8C4547AZI-S473 meets industry standards.
7.What is the process for return or replacement of CY8C4547AZI-S473?
All CY8C4547AZI-S473 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4547AZI-S473, 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 CY8C4547AZI-S473 part is unused and in its original packaging.
Return procedure for CY8C4547AZI-S473:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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