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Infineon Technologies CY8C4548AZI-S475
- Part No.:
- CY8C4548AZI-S475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4548AZI-S475.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,176
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Product details
Overview
CY8C4548AZI-S475 from Infineon is a 32-bit PSoC™ 4500S microcontroller based on the Arm® Cortex®-M0+ CPU, operating at up to 48 MHz with 256 KB flash and 32 KB SRAM. It integrates programmable analog (dual 12-bit 1-Msps SAR ADCs, four opamps), digital logic blocks, CAPSENSE™ capacitive sensing, and five reconfigurable Serial Communication Blocks (SCBs) for I²C/SPI/UART. Used in industrial HMI, smart sensor nodes, and motor control interfaces requiring mixed-signal integration and low-power operation.
For engineers reviewing the CY8C4548AZI-S475 datasheet, CY8C4548AZI-S475 pinout, CY8C4548AZI-S475 application, or CY8C4548AZI-S475 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), TCPWM quadrature decoding support, and 53 GPIO with configurable drive strength and slew rate.
Technical Context
The device implements a tightly coupled subsystem where the Arm Cortex-M0+ core coordinates programmable analog blocks (opamps, SAR ADCs, IDACs) and digital resources (TCPWM, SCBs, PLD) via a flexible routing matrix. Its dual SAR ADCs support simultaneous sampling and channel sequencing with signal averaging, while CAPSENSE™ uses capacitive sigma-delta modulation with hardware SmartSense tuning.
System-level timing relies on multiple independent clock sources: 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 40-kHz ILO - all feeding into a PLL for precise 48-MHz system clock generation. The MCA block provides dedicated hardware acceleration for square root and division operations essential in Field Oriented Control (FOC) algorithms.
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 firmware with fast code fetch and data buffering. |
| Analog Peripherals | Dual 12-bit 1-Msps SAR ADCs with sequencer & averaging - enables high-resolution, multi-channel sensor acquisition without CPU overhead. |
| Capacitive Sensing | CAPSENSE™ sigma-delta with >5:1 SNR and SmartSense auto-tuning - delivers robust touch detection under moisture or noise. |
| Digital Interfaces | 5 × SCBs supporting I²C/SPI/UART runtime reconfiguration - allows dynamic peripheral assignment without hardware change. |
| Power Modes | Deep Sleep mode with 2.5 µA system current and active analog - sustains sensor wake-up and signal conditioning during ultra-low-power operation. |
| GPIO Count | 53 programmable pins with configurable drive modes, strengths, and slew rates - supports mixed-signal routing, LCD segment drive, and CapSense electrode layout. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5-mm pitch), RoHS-compliant, lead-free, industrial temperature range (–40°C to +85°C).
| 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 | Ground reference | Common return path for analog/digital domains; requires separate analog/digital ground layout per TRM. |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, analog input/output, digital logic, or SCB functions; configurable slew and drive strength. |
| XTAL_IN / XTAL_OUT | External crystal interface | Connects to 4–33 MHz crystal for precision timing; enables ECO-based clock source with PLL multiplication. |
| SWDIO / SWCLK | Serial Wire Debug | Standard Arm SWD interface for programming, tracing, and full-chip debugging without external pods. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Four opamps with internal/external drive modes and Deep Sleep operation - enable sensor signal conditioning and ADC buffering without waking CPU. |
| Capacitive Sensing Engine | Sigma-delta CAPSENSE™ with hardware SmartSense tuning - eliminates manual calibration and improves water tolerance in consumer HMI designs. |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide unit - reduces FOC loop execution time by offloading math-intensive calculations from CPU. |
| Reconfigurable SCBs | Five independent serial blocks supporting I²C/SPI/UART in any combination - simplifies communication interface changes across product variants. |
| Flexible Clock System | Multiple oscillators (ECO, WCO, IMO, ILO) with PLL - ensures accurate timing across sleep/wake transitions and real-time control loops. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on factory-floor equipment with moisture exposure. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, managing display updates via GPIO-driven LCD segments, and handling Modbus RTU over UART. Use Value: CAPSENSE™ sigma-delta SNR >5:1 and SmartSense ensure reliable touch detection despite condensation or glove use. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and vibration. IC Role / Device Role / Timing Role: System-on-chip controller acquiring analog sensor data via dual SAR ADCs, performing local FFT preprocessing, and transmitting via SPI to LoRa module. Use Value: Deep Sleep current of 2.5 µA extends battery life to >5 years with periodic wake-up sampling. |
| Brushless DC Motor Drives | Medical Diagnostic Devices |
Use Scenario: Compact fan or pump controller requiring closed-loop speed regulation and fault protection. IC Role / Device Role / Timing Role: Real-time motor controller using TCPWM quadrature decoder for rotor position, MCA for FOC math, and comparator-triggered kill signals for overcurrent shutdown. Use Value: Hardware-accelerated square root/divide cuts FOC loop latency below 10 µs, enabling smoother torque response. | Use Scenario: Portable ultrasound probe with analog front-end signal conditioning and digital beamforming. IC Role / Device Role / Timing Role: Mixed-signal hub interfacing with transducer arrays via programmable opamps and IDACs, digitizing echo signals with synchronized dual SAR ADCs. Use Value: Simultaneous sampling and channel sequencing allow coherent multi-channel echo capture without external synchronization logic. |
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 | Same package and core, but 128 KB flash / 16 KB SRAM - reduced memory footprint. | Suitable for simpler CapSense-only or basic motor control firmware without extensive middleware. | Select when BOM cost sensitivity outweighs need for large firmware image or complex protocol stacks. |
| CY8C4549AZI-S475 | Same package and peripherals, but adds USB 2.0 FS PHY and dedicated USB controller block. | Required for host/device USB connectivity - e.g., medical devices needing plug-and-play PC interface. | Choose only if native USB functionality is mandatory; otherwise, CY8C4548AZI-S475 offers better price/performance for non-USB use cases. |
Compared with CY8C4547AZI-S475 and CY8C4549AZI-S475, CY8C4548AZI-S475 delivers optimal balance of memory (256 KB flash), analog capability, and communication flexibility without USB overhead or memory reduction - making it ideal for mid-tier industrial and sensor-edge applications.
Availability
CY8C4548AZI-S475 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, brushless DC motor drives, and portable medical diagnostic devices requiring stable component supply and long-term design-in support.
Supply support for CY8C4548AZI-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 programmable mixed-signal solutions, with global R&D and manufacturing infrastructure.
The PSoC™ 4500S product line targets embedded systems requiring integrated analog/digital programmability, low-power operation, and rapid prototyping - especially in human-machine interface, motor control, and sensor fusion applications.
FAQ
What debug interface does CY8C4548AZI-S475 support?
CY8C4548AZI-S475 uses Arm Serial-Wire Debug (SWD) with SWDIO and SWCLK pins. It supports full-chip programming, real-time tracing, and on-the-fly register inspection without external debug pods. Debug circuits are enabled by default but can be disabled in firmware; re-enabling requires full flash erase and reprogramming.
Does CY8C4548AZI-S475 support USB communication?
No, CY8C4548AZI-S475 does not include a USB physical layer or controller. It lacks native USB 2.0 FS support. For USB-capable variants, consider CY8C4549AZI-S475, which integrates a dedicated USB PHY and controller block alongside identical analog/digital peripherals.
Can CY8C4548AZI-S475 operate from a single 3.3-V supply?
Yes, CY8C4548AZI-S475 operates across 1.71 V to 5.5 V, including standard 3.3-V systems. All I/Os are 5-V tolerant when VDD ≥ 3.0 V, and internal regulators maintain stable core voltage regardless of supply variation within spec.
How many CapSense electrodes can CY8C4548AZI-S475 support?
CY8C4548AZI-S475 supports up to 53 CapSense electrodes using its sigma-delta sensing engine and SmartSense auto-tuning. Electrode count is limited only by available GPIO pins and layout constraints - no external components or dedicated pins are required beyond standard GPIO configuration.
CY8C4548AZI-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:
- 256KB (256K 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:
CY8C4548AZI-S475 FAQ
1.How can I place an order for CY8C4548AZI-S475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4548AZI-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 CY8C4548AZI-S475 reliable?
The price and inventory of CY8C4548AZI-S475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4548AZI-S475 is usually 5 days.
3.What payment methods are accepted for CY8C4548AZI-S475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4548AZI-S475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4548AZI-S475?
CY8C4548AZI-S475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4548AZI-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 CY8C4548AZI-S475?
For technical support, including CY8C4548AZI-S475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4548AZI-S475 requirements.
6.How does Aetrix verify that CY8C4548AZI-S475 is sourced from the original manufacturer or authorized distributors?
All CY8C4548AZI-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 CY8C4548AZI-S475 meets industry standards.
7.What is the process for return or replacement of CY8C4548AZI-S475?
All CY8C4548AZI-S475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4548AZI-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 CY8C4548AZI-S475 part is unused and in its original packaging.
Return procedure for CY8C4548AZI-S475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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