My Inquiry
My Account
Infineon Technologies CY8C4548AXI-S475
- Part No.:
- CY8C4548AXI-S475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4548AXI-S475.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,901
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4548AXI-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 programmable opamps, five reconfigurable Serial Communication Blocks (SCBs), and eight TCPWM blocks. Used in industrial HMI, smart appliance touch interfaces, and motor control subsystems requiring mixed-signal integration and low-power operation.
For engineers reviewing the CY8C4548AXI-S475 datasheet, CY8C4548AXI-S475 pinout, CY8C4548AXI-S475 application, or CY8C4548AXI-S475 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), 48-MHz CPU clock with single-cycle multiply, and GPIO flexibility (up to 53 pins with programmable drive modes).
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) resources routed via automatic interconnect fabric. Its CAPSENSE™ sigma-delta engine delivers hardware-accelerated capacitive sensing with SmartSense auto-tuning and water tolerance.
System-level timing includes a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 40-kHz ILO - enabling precise real-time control and ultra-low-power wake-up. The MCA block provides dedicated hardware square root/divide for FOC and PFC algorithms without CPU overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max, single-cycle multiply - enables deterministic real-time firmware execution with minimal latency. |
| Memory | 256 KB flash (with Read Accelerator), 32 KB SRAM - supports complex firmware with bootloader, CapSense tuning, and communication stacks. |
| Analog Peripherals | Dual 12-bit 1-Msps SAR ADCs with sequencer & averaging; four opamps; two IDACs - enables simultaneous sensor acquisition and analog signal conditioning on-chip. |
| Digital Peripherals | Five SCBs (I²C/SPI/UART reconfigurable), eight TCPWM blocks, quadrature decoder - supports multi-protocol connectivity and precision motor timing control. |
| Power Modes | Deep Sleep mode draws 2.5 µA digital + operational analog - allows capacitive touch wake-up while preserving system state. |
| GPIO | Up to 53 programmable pins with configurable drive strength, slew rate, and CapSense capability - eliminates external touch controller and reduces BOM count. |
| Clock Sources | 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, 40-kHz ILO - provides flexible timing for RTC, high-speed comms, and low-power wake-up without external crystals. |
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 & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and GPIO; requires local decoupling. |
| VSS | Ground reference | Common return path for all analog/digital domains; separation not required but recommended for noise-sensitive designs. |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, analog input/output, digital logic, or SCB functions; drive strength and slew rate configurable per pin. |
| P1[0]–P1[7] | Programmable GPIO | Same capabilities as Port 0; includes dedicated TCPWM and quadrature decoder inputs. |
| SWDIO / SWCLK | Debug interface | Serial Wire Debug pins for programming and full-chip debugging; enabled by default, disableable in firmware. |
| XRES | External reset | Active-low asynchronous reset; internal pull-up; compatible with pushbutton or supervisor IC assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Sensing Engine | Sigma-delta CAPSENSE™ with >5:1 SNR and hardware SmartSense auto-tuning - eliminates manual calibration and improves robustness against moisture and EMI. |
| Motor Control Accelerator (MCA) | Dedicated hardware square root and divide units - offloads FOC/PFC math from CPU, reducing interrupt latency and improving control loop determinism. |
| Reconfigurable SCBs | Five independent serial blocks supporting I²C/SPI/UART at runtime - enables dynamic peripheral assignment without firmware rebuild or pin remapping. |
| Deep Sleep Analog Operation | Opamps, comparators, and CapSense active during 2.5-µA Deep Sleep - enables always-on touch wake-up with sub-millisecond response and zero firmware intervention. |
| Automatic Routing Fabric | Configurable interconnect between analog/digital blocks and GPIO - removes fixed signal-path constraints, allowing layout-optimized resource allocation. |
Applications
| Industrial HMI Panels | Smart Appliance Touch Interfaces |
|---|---|
Use Scenario: Touch-enabled operator panels in PLC cabinets or factory HMIs operating in noisy electromagnetic environments. IC Role / Device Role / Timing Role: Primary MCU handling CapSense scanning, display interface (SPI/LCD), and serial gateway (UART/I²C) to PLC backplane. Use Value: Integrated CAPSENSE™ with >5:1 SNR and water tolerance ensures reliable touch detection despite condensation or oil film; Deep Sleep wake-up preserves battery life in portable variants. | Use Scenario: Wash-resistant touch controls on refrigerators, dishwashers, and ovens exposed to humidity and thermal cycling. IC Role / Device Role / Timing Role: Standalone touch controller and system manager coordinating user input, LED feedback, and appliance motor sequencing. Use Value: Hardware SmartSense auto-tuning maintains consistent button response across temperature/humidity shifts without recalibration; 2.5-µA Deep Sleep extends battery backup duration. |
| Brushless Motor Drives | IoT Edge Sensor Nodes |
Use Scenario: Compact BLDC drives for HVAC blowers or small pumps where space and thermal budget constrain discrete solutions. IC Role / Device Role / Timing Role: Real-time motor controller executing Field Oriented Control using MCA-accelerated math and quadrature encoder feedback. Use Value: On-chip MCA reduces CPU load by >40% vs software-only FOC, enabling higher PWM resolution and tighter current-loop bandwidth within same clock cycle budget. | Use Scenario: Battery-powered environmental sensors collecting temperature, humidity, and occupancy data with wireless uplink. IC Role / Device Role / Timing Role: System-on-chip managing sensor ADC reads, CapSense wake gesture, BLE connectivity (via external transceiver), and low-power scheduling. Use Value: 256 KB flash accommodates secure bootloader, sensor fusion algorithms, and OTA update stack; 2.5-µA Deep Sleep extends 2-AA battery life beyond 5 years. |
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 die, 64-pin TQFP package (0.5 mm pitch), 53 GPIOs - no change in memory, peripherals, or performance. | Requires larger PCB footprint and different layout; suitable when additional routing flexibility or future expansion is needed. | Select for designs needing maximum GPIO count or board-level scalability beyond 48-pin constraints. |
| CY8C4546LQI-S475 | Same feature set, 40-pin QFN package (0.5 mm pitch), 34 GPIOs - reduced pin count and smaller thermal pad area. | Better suited for space-constrained consumer devices; limited CapSense channel count due to fewer GPIOs. | Select for compact, cost-sensitive applications where <34 GPIOs and no LCD segment drive are sufficient. |
Compared with CY8C4547AZI-S475 and CY8C4546LQI-S475, the CY8C4548AXI-S475 offers optimal balance of I/O density (48-pin TQFP), thermal performance, and PCB assembly compatibility - making it the preferred choice for mid-volume industrial and appliance designs requiring proven manufacturability.
Availability
CY8C4548AXI-S475 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance touch interfaces, and brushless motor drives requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for CY8C4548AXI-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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4500S product line - designed specifically for cost-sensitive, mixed-signal embedded systems requiring integrated capacitive sensing, motor control acceleration, and flexible analog/digital reconfiguration without external components.
FAQ
Does CY8C4548AXI-S475 support USB connectivity?
No. The CY8C4548AXI-S475 does not include a USB PHY or USB controller. It supports UART, SPI, and I²C via its five reconfigurable Serial Communication Blocks (SCBs). For USB host or device functionality, an external USB-to-UART bridge (e.g., CP2102N) or companion wireless SoC must be used.
What debug interfaces are supported?
The device supports Arm® Serial Wire Debug (SWD) only - using SWDIO and SWCLK pins. JTAG is not implemented. Debug is fully compatible with industry-standard tools including Segger J-Link, CMSIS-DAP, and Infineon's MiniProg4. Debug circuits are enabled by default and can be disabled in firmware.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. CAPSENSE™ sigma-delta sensing remains fully functional in Deep Sleep mode with total system current of 2.5 µA. The hardware automatically manages scan timing, result storage, and wake-on-touch interrupt generation without CPU involvement - enabling true always-on touch capability.
Is external flash required for firmware updates?
No. The device includes 256 KB of on-chip flash with Read Accelerator and supports in-application programming (IAP). Secure bootloaders and OTA update stacks can be implemented entirely within internal memory - eliminating need for external SPI flash in most use cases.
CY8C4548AXI-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:
CY8C4548AXI-S475 FAQ
1.How can I place an order for CY8C4548AXI-S475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4548AXI-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 CY8C4548AXI-S475 reliable?
The price and inventory of CY8C4548AXI-S475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4548AXI-S475 is usually 5 days.
3.What payment methods are accepted for CY8C4548AXI-S475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4548AXI-S475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4548AXI-S475?
CY8C4548AXI-S475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4548AXI-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 CY8C4548AXI-S475?
For technical support, including CY8C4548AXI-S475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4548AXI-S475 requirements.
6.How does Aetrix verify that CY8C4548AXI-S475 is sourced from the original manufacturer or authorized distributors?
All CY8C4548AXI-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 CY8C4548AXI-S475 meets industry standards.
7.What is the process for return or replacement of CY8C4548AXI-S475?
All CY8C4548AXI-S475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4548AXI-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 CY8C4548AXI-S475 part is unused and in its original packaging.
Return procedure for CY8C4548AXI-S475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4548AXI-S475 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
