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Infineon Technologies CY8C4547AZI-S455
- Part No.:
- CY8C4547AZI-S455
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4547AZI-S455.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,671
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Product details
Overview
CY8C4547AZI-S455 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 four opamps, two 12-bit 1-Msps SAR ADCs, five reconfigurable Serial Communication Blocks (SCBs), and eight 16-bit TCPWM blocks. Used in touch-enabled industrial HMI and motor control systems requiring analog-digital co-processing.
For engineers reviewing the CY8C4547AZI-S455 datasheet, CY8C4547AZI-S455 pinout, CY8C4547AZI-S455 application, or CY8C4547AZI-S455 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), 48-MHz CPU clock, programmable analog routing, and SCB runtime reconfiguration for I²C/SPI/UART.
Technical Context
The device integrates a single-core Arm Cortex-M0+ CPU with dual Divide/Square Root accelerators and an 8-channel DMA engine, enabling deterministic real-time execution for Field-Oriented Control (FOC) and Power Factor Correction (PFC). Its analog subsystem includes simultaneous-sampling dual SAR ADCs and sigma-delta capacitance sensing with hardware SmartSense tuning.
Digital flexibility is provided by programmable logic blocks and five Serial Communication Blocks (SCBs) that support runtime mode switching between I²C, SPI, and UART protocols. GPIO configuration supports CapSense, analog, or digital functions on any of up to 53 pins, with programmable drive strength and slew rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables real-time deterministic firmware execution with single-cycle multiply |
| Flash / SRAM | 256 KB flash with Read Accelerator / 32 KB SRAM - supports complex embedded applications with fast code fetch and data buffering |
| Analog Peripherals | 2× 12-bit 1-Msps SAR ADCs with channel sequencer and signal averaging - enables high-fidelity sensor acquisition with noise suppression |
| CapSense Performance | Sigma-delta architecture with >5:1 SNR and water tolerance - delivers robust touch detection in humid or wet environments |
| Power Modes | Deep Sleep at 2.5 µA system current with operational analog - allows battery-powered devices to maintain sensing while minimizing energy use |
| Communication Blocks | 5× reconfigurable SCBs supporting I²C/SPI/UART - permits dynamic peripheral assignment without hardware redesign |
| Timing/PWM | 8× 16-bit TCPWM blocks with center-aligned, edge, and pseudo-random modes - supports precise motor phase control and LED dimming |
Pinout & Package
Package: 48-pin TQFP (0.5-mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 1.71–5.5 V input; powers digital logic and internal regulators |
| VSS | Ground reference | Digital and analog common return; requires low-impedance PCB connection |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, analog input/output, or digital function; configurable drive strength and slew rate |
| P1[0]–P1[7] | Programmable GPIO | Same capabilities as Port 0; includes dedicated SCB and TCPWM alternate functions |
| SWDCLK / SWDIO | Debug interface | Arm Serial-Wire Debug signals; enable full-chip programming and real-time debugging without external pods |
| XRES | External reset input | Active-low asynchronous reset; debounced internally for reliable startup |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CapSense calibration eliminates manual parameter adjustment during production or field operation |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide block reduces FOC loop latency by >60% vs. software-only implementation |
| Reconfigurable SCBs | Each SCB can be assigned I²C master/slave, SPI master/slave, or UART TX/RX at runtime - simplifies BOM consolidation |
| Deep Sleep analog retention | Opamps, comparators, and CapSense blocks remain active at 2.5 µA system current - enables always-on touch wake-up |
| Programmable analog routing | Continuous-time and switched-capacitor blocks connect via internal matrix - avoids external signal conditioning components |
Applications
| Industrial HMI Panels | Brushless DC Motor Drives |
|---|---|
Use Scenario: Touch-enabled operator interface on factory-floor equipment with splash resistance requirements. IC Role / Device Role / Timing Role: Primary MCU handling CapSense scanning, display timing, and serial communication to PLC. Use Value: Sigma-delta CapSense achieves >5:1 SNR and tolerates condensation, eliminating false triggers in humid environments. | Use Scenario: Closed-loop speed and torque control for HVAC blowers using three-phase BLDC motors. IC Role / Device Role / Timing Role: Real-time FOC executor with TCPWM-driven gate drivers and MCA-accelerated Clarke/Park transforms. Use Value: Hardware square root/divide reduces control loop latency to <2 µs, enabling stable 20-kHz PWM switching. |
| Smart Home Thermostats | Medical Patient Monitors |
Use Scenario: Battery-powered wall-mounted thermostat with capacitive buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Low-power system controller managing CapSense wake-up, sensor ADC reads, and BLE connectivity via SCB. Use Value: Deep Sleep current of 2.5 µA extends coin-cell battery life beyond 5 years with daily touch events. | Use Scenario: Portable patient monitor requiring ECG signal conditioning and touch-based UI with clinical-grade reliability. IC Role / Device Role / Timing Role: Analog-digital hub acquiring differential ECG inputs via SAR ADC and driving OLED display via GPIO timing. Use Value: Simultaneous-sampling dual ADCs reject common-mode noise from 50/60 Hz mains interference without external filters. |
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 |
|---|---|---|---|
| CY8C4548LQI-S455 | 64-pin QFN package, 53 GPIOs, same core/peripherals - differs only in package and pin count | Requires PCB redesign for larger footprint and finer pitch (0.4 mm); no functional change | Select when higher I/O count or thermal performance is needed; not drop-in compatible |
| CY8C4247LQI-BL483 | Lower flash (256 KB → 128 KB), no MCA block, same CapSense and SCB count | Lacks hardware acceleration for motor control math; limited to simpler FOC implementations | Choose for cost-sensitive designs where MCA and full SRAM are unnecessary |
Compared with CY8C4547AZI-S455, CY8C4548LQI-S455 offers identical functionality in a different package, while CY8C4247LQI-BL483 trades MCA and memory capacity for lower unit cost-making it suitable only for less computationally intensive applications.
Availability
CY8C4547AZI-S455 is available at Aetrix Electronics and suitable for industrial HMI panels, brushless DC motor drives, and smart home thermostats requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4547AZI-S455 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, sensing, and microcontroller solutions for industrial, automotive, and IoT applications.
The PSoC™ 4500S product line targets embedded systems requiring integrated analog-digital programmability, capacitive touch, and real-time motor control - delivering single-chip alternatives to multi-component solutions.
FAQ
What debug interfaces does CY8C4547AZI-S455 support?
CY8C4547AZI-S455 supports Arm Serial-Wire Debug (SWD) exclusively, with dedicated SWDCLK and SWDIO pins. It enables full-chip programming, real-time breakpointing, and memory inspection without external emulators. Debug circuits are enabled by default but can be disabled in firmware; re-enabling requires full flash erase and reprogramming.
Does CY8C4547AZI-S455 support USB connectivity?
No, CY8C4547AZI-S455 does not include a USB PHY or USB controller. Connectivity is limited to I²C, SPI, and UART via its five reconfigurable Serial Communication Blocks (SCBs). For USB host/device functionality, external bridge ICs or migration to PSoC™ 6 devices is required.
Can all GPIO pins be used for CapSense simultaneously?
Yes, any of the up to 53 GPIO pins can be configured for CapSense, but total simultaneous sensing channels are constrained by the sigma-delta modulator resource count and scan time budget. Practical limits depend on electrode count, resolution, and noise environment - typical designs use 10–20 electrodes per scan cycle.
What clock sources are internal to CY8C4547AZI-S455?
CY8C4547AZI-S455 integrates four internal clock sources: a ±2% 48-MHz Internal Main Oscillator (IMO), a 40-kHz Internal Low-power Oscillator (ILO), a 32.768-kHz Watch Crystal Oscillator (WCO) input path, and a 4–33-MHz External Crystal Oscillator (ECO) input. The IMO feeds the PLL to generate the 48-MHz system clock.
CY8C4547AZI-S455 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:
- 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-S455 FAQ
1.How can I place an order for CY8C4547AZI-S455 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4547AZI-S455 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-S455 reliable?
The price and inventory of CY8C4547AZI-S455 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4547AZI-S455 is usually 5 days.
3.What payment methods are accepted for CY8C4547AZI-S455?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4547AZI-S455 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4547AZI-S455?
CY8C4547AZI-S455 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4547AZI-S455 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-S455?
For technical support, including CY8C4547AZI-S455 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4547AZI-S455 requirements.
6.How does Aetrix verify that CY8C4547AZI-S455 is sourced from the original manufacturer or authorized distributors?
All CY8C4547AZI-S455 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-S455 meets industry standards.
7.What is the process for return or replacement of CY8C4547AZI-S455?
All CY8C4547AZI-S455 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4547AZI-S455, 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-S455 part is unused and in its original packaging.
Return procedure for CY8C4547AZI-S455:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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