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Infineon Technologies CY8C4546AZI-S475
- Part No.:
- CY8C4546AZI-S475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4546AZI-S475.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,184
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Product details
Overview
CY8C4546AZI-S475 from Infineon is a 32-bit PSoC™ 4500S microcontroller based on the Arm® Cortex®-M0+ CPU, operating at up to 48 MHz. It integrates programmable analog (4 opamps, dual 12-bit 1-Msps SAR ADCs), digital logic blocks, CAPSENSE™ capacitive sensing with SmartSense auto-tuning, and five reconfigurable Serial Communication Blocks (SCBs) supporting I²C/SPI/UART. Used in industrial HMI touch panels requiring robust water-tolerant sensing and real-time motor control.
For engineers reviewing the CY8C4546AZI-S475 datasheet, CY8C4546AZI-S475 pinout, CY8C4546AZI-S475 application, or CY8C4546AZI-S475 equivalent, key selection criteria include Deep Sleep current (2.5 µA), 53 GPIO count with CapSense capability on any pin, 256 KB flash/32 KB SRAM memory configuration, and hardware-accelerated Field Oriented Control (FOC) via the Motor Control Accelerator (MCA).
Technical Context
The device implements a tightly coupled subsystem where the Arm Cortex-M0+ core interfaces directly with programmable analog blocks-including opamps configurable for ADC input buffering or comparator modes-and two independent 12-bit SAR ADCs supporting simultaneous sampling and channel sequencing with signal averaging. Its digital fabric includes eight TCPWM blocks with quadrature decode, kill-signal triggering, and center-aligned PWM for motor drive timing precision.
Capacitive sensing uses a dedicated sigma-delta modulator delivering >5:1 SNR and intrinsic water tolerance, managed by hardware-accelerated SmartSense tuning. Clocking combines a 4–33 MHz ECO, PLL for 48 MHz system clock, and low-power 32-kHz WCO and 40-kHz ILO oscillators-enabling deterministic low-power operation across Deep Sleep, Hibernate, and Active modes.
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 CapSense + communication + control firmware without external memory |
| Analog Peripherals | 4 opamps (Deep Sleep capable), dual 12-bit 1-Msps SAR ADCs with sequencer & averaging - enables concurrent sensor signal conditioning and high-resolution acquisition |
| Digital Peripherals | 5 SCBs (I²C/SPI/UART reconfigurable), 8 TCPWM blocks with quadrature decode & kill-input - supports multi-protocol comms and precise motor timing control |
| GPIO / CapSense | 53 programmable GPIO pins, all CapSense-capable with SmartSense auto-tuning - eliminates external touch controller in HMI designs |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - sustains capacitive wake-up and sensor monitoring without host intervention |
| Package | 48-pin TQFP, 0.5-mm pitch - standard surface-mount footprint compatible with automated PCB assembly |
Pinout & Package
48-pin TQFP (0.5-mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3 per J-STD-020.
| 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 | Primary return path for all analog/digital circuits; requires low-impedance PCB plane |
| P0[0]–P0[7] | General-purpose I/O | CapSense-capable; configurable as analog input, digital port, or SCB function |
| P1[0]–P1[7] | General-purpose I/O | Supports TCPWM capture/compare, quadrature decode inputs, and IDAC outputs |
| XTAL_IN / XTAL_OUT | External crystal oscillator interface | Connects to 4–33 MHz crystal for precision timing and PLL reference |
| SWDCLK / SWDIO | Serial Wire Debug interface | Two-pin debug port enabling full-chip programming, breakpointing, and trace without emulator |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and peripherals; debounced internally |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual parameter tuning and ensures stable operation across temperature/humidity |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide block reduces FOC loop latency by >60% vs. software-only implementation |
| Programmable analog routing | Flexible interconnect allows opamp outputs to feed ADC inputs or comparators without fixed-path constraints |
| Reconfigurable SCBs | Five independent serial blocks each dynamically assigned as I²C master/slave, SPI master/slave, or UART - no peripheral resource contention |
| Deep Sleep analog retention | Opamps, comparators, and sigma-delta CapSense remain active at 2.5 µA system current - enables always-on touch wake-up |
Applications
| Industrial HMI Touch Panels | Brushless DC Motor Controllers |
|---|---|
Use Scenario: Waterproof touch interface on factory HMIs exposed to coolant splashes and condensation. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware with SmartSense, managing UART-based PLC communication, and driving segmented LCD overlay. Use Value: >5:1 SNR and intrinsic water tolerance eliminate false triggers; 53 GPIO enable direct integration of touch + display + comms without companion ICs. | Use Scenario: Closed-loop FOC control of 3-phase BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time motor controller running FOC algorithm with hardware-accelerated MCA, ADC sampling, and PWM generation. Use Value: Hardware square root/divide cuts FOC loop time from ~1.8 µs to <0.7 µs, enabling 20 kHz PWM switching with margin for safety checks. |
| Smart Home Sensor Hubs | Medical Portable Devices |
Use Scenario: Battery-powered multi-sensor node aggregating temperature, motion, and capacitive proximity data. IC Role / Device Role / Timing Role: Low-power system controller acquiring analog sensor data, processing CapSense gestures, and transmitting via I²C to BLE SoC. Use Value: 2.5 µA Deep Sleep with active CapSense enables years of battery life; programmable opamps condition thermistor and photodiode signals on-chip. | Use Scenario: Handheld diagnostic tool with tactile feedback buttons and low-noise analog front-end for biopotential measurement. IC Role / Device Role / Timing Role: Signal acquisition MCU performing 12-bit differential ADC sampling, real-time filtering, and USB HID reporting. Use Value: Dual SAR ADCs with simultaneous sampling reject common-mode noise; opamp input buffering preserves signal integrity at high source impedance. |
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); adds 11 extra GPIO vs. 48-pin variant | Required when board layout needs >53 I/O or additional analog routing flexibility | Select only if pin count or routing density justifies larger footprint and higher cost |
| CY8C4548AZI-S475 | Same die, 64-pin TQFP (0.8 mm pitch); identical functionality but relaxed assembly requirements | Preferred for legacy SMT lines not equipped for 0.5-mm pitch fine-pitch placement | Choose when manufacturing infrastructure lacks 0.5-mm pitch capability or IPC Class 3 yield is critical |
Compared with CY8C4546AZI-S475, the -S475 variants offer identical core, analog, and digital capabilities but differ solely in package pin count and pitch-making them drop-in functional replacements where mechanical fit permits.
Availability
CY8C4546AZI-S475 is available at Aetrix Electronics and suitable for industrial HMI touch panels, brushless DC motor controllers, and smart home sensor hubs requiring stable component supply, long-term lifecycle support, and verified RoHS compliance.
Supply support for CY8C4546AZI-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 MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
The PSoC™ 4500S product line delivers programmable mixed-signal SoCs targeting cost-sensitive industrial and consumer applications requiring integrated CapSense, motor control acceleration, and flexible serial communication-all on a single chip.
FAQ
What debug interface does CY8C4546AZI-S475 support?
CY8C4546AZI-S475 uses Arm Serial-Wire Debug (SWD) with two dedicated pins (SWDCLK and SWDIO). It supports full-chip programming, real-time breakpointing, register inspection, and memory access without external emulators. Debug circuitry is enabled by default and can be disabled in firmware; re-enabling requires full flash erase.
Does CY8C4546AZI-S475 support hardware-based capacitive sensing without external components?
Yes. It integrates a dedicated sigma-delta capacitive sensing block with SmartSense auto-tuning, enabling robust touch detection on any GPIO pin using only PCB traces-no external RC networks or calibration resistors required. SNR exceeds 5:1, and water tolerance is built into the modulation architecture.
Can the opamps in CY8C4546AZI-S475 operate during Deep Sleep mode?
Yes. All four opamps retain full functionality-including gain configuration and output drive-in Deep Sleep mode while consuming only 2.5 µA total system current. This enables continuous sensor signal conditioning or comparator-based wake-up without exiting low-power state.
What development tools are officially supported for CY8C4546AZI-S475 firmware creation?
Infineon officially supports ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only, schematic-driven IDE). Both provide full peripheral driver libraries, CapSense tuning GUIs, TCPWM configurators, and validated code examples. MiniProg4 is the recommended programmer/debugger for production programming and field updates.
CY8C4546AZI-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:
CY8C4546AZI-S475 FAQ
1.How can I place an order for CY8C4546AZI-S475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4546AZI-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 CY8C4546AZI-S475 reliable?
The price and inventory of CY8C4546AZI-S475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4546AZI-S475 is usually 5 days.
3.What payment methods are accepted for CY8C4546AZI-S475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4546AZI-S475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4546AZI-S475?
CY8C4546AZI-S475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4546AZI-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 CY8C4546AZI-S475?
For technical support, including CY8C4546AZI-S475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4546AZI-S475 requirements.
6.How does Aetrix verify that CY8C4546AZI-S475 is sourced from the original manufacturer or authorized distributors?
All CY8C4546AZI-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 CY8C4546AZI-S475 meets industry standards.
7.What is the process for return or replacement of CY8C4546AZI-S475?
All CY8C4546AZI-S475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4546AZI-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 CY8C4546AZI-S475 part is unused and in its original packaging.
Return procedure for CY8C4546AZI-S475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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