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Infineon Technologies CY8C4548AZI-S485
- Part No.:
- CY8C4548AZI-S485
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4548AZI-S485.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,505
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Product details
Overview
CY8C4548AZI-S485 from Infineon is a PSoC™ 4500S-series 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 256 KB flash, 32 KB SRAM, and integrated CAPSENSE™ capacitive touch 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 control, and motor-driven consumer devices requiring embedded analog-digital integration.
For engineers reviewing the CY8C4548AZI-S485 datasheet, CY8C4548AZI-S485 pinout, CY8C4548AZI-S485 application, or CY8C4548AZI-S485 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), TCPWM quadrature decoding support, and 48-pin TQFP package compatibility with 0.5-mm pitch.
Technical Context
The device implements a tightly coupled mixed-signal architecture where programmable analog blocks (opamps, IDACs, comparators) and digital logic (PLD, TCPWM, SCB) are routed via automatic interconnect fabric. Its CAPSENSE™ sigma-delta engine operates independently of CPU load and supports SmartSense auto-tuning.
Clock system includes 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 40-kHz ILO - enabling precise timing for motor control (FOC/PFC via MCA block) and low-power wake-up events. All analog peripherals remain functional in Deep Sleep mode with 2.5-µA system current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic execution for motor control and sensor fusion. |
| Flash / SRAM | 256 KB flash with Read Accelerator / 32 KB SRAM - supports complex firmware with bootloader, CapSense tuning, and communication stacks. |
| ADC | Dual 12-bit 1-Msps SAR ADCs with channel sequencer and simultaneous sampling - allows synchronized voltage/current acquisition in motor drives. |
| CapSense | Capacitive sigma-delta engine with >5:1 SNR and water tolerance - delivers robust touch interface in humid or wet environments without shielding. |
| Power Range | 1.71 V to 5.5 V operation - supports direct battery (Li-ion, 3.7 V) or rail-powered (3.3 V/5 V) designs without LDO overhead. |
| TCPWM Blocks | Eight 16-bit Timer/Counter/PWM units with center-aligned, edge, and pseudo-random modes - provides flexible waveform generation for BLDC commutation and LED dimming. |
| SCBs | Five reconfigurable Serial Communication Blocks supporting I²C/SPI/UART concurrently - enables multi-protocol peripheral interfacing (e.g., I²C sensor + SPI display + UART debug). |
Pinout & Package
48-pin TQFP package (0.5-mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3. Package dimensions: 7.0 mm × 7.0 mm × 1.4 mm (max height). Thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Accepts 1.71–5.5 V; powers digital logic, analog blocks, and GPIO drivers. |
| VSS | Digital ground | Reference return for digital circuitry and I/O structures. |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, analog input/output, digital logic, and SCB functions; configurable drive strength/slew rate. |
| P1[0]–P1[7] | Programmable GPIO | Same capabilities as P0; includes dedicated TCPWM capture/compare pins and quadrature decoder inputs. |
| SWDCLK / SWDIO | Debug interface | Arm Serial-Wire Debug signals; enable full-chip programming and real-time debugging without external pods. |
| XRES | External reset | Active-low asynchronous reset; debounced internally; overrides all power modes. |
| XTAL_IN / XTAL_OUT | Crystal oscillator | Supports 4–33 MHz external crystal for high-accuracy clock source; required for USB or precision timing applications. |
Key Features
| Feature | Design Value |
|---|---|
| Deep Sleep Mode | 2.5 µA system current with operational analog blocks - enables battery-powered touch interfaces with multi-year runtime. |
| SmartSense Auto-Tuning | Hardware-accelerated CapSense calibration - eliminates manual tuning and ensures stable operation across temperature/humidity drift. |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide unit - reduces FOC loop latency by >60% vs. software-only implementation. |
| Reconfigurable SCBs | Five independent blocks, each runtime-switchable between I²C/SPI/UART - simplifies BOM by eliminating protocol-specific transceivers. |
| Programmable Analog | Four opamps with internal/external drive modes and ADC buffering - enables sensor signal conditioning and active filtering without external components. |
Applications
| Industrial HMI Panels | Smart Home Appliances |
|---|---|
Use Scenario: Touch-enabled control panel on HVAC systems with ambient light and condensation exposure. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, managing display interface via SPI, and regulating fan speed via TCPWM. Use Value: >5:1 CapSense SNR and water tolerance ensure reliable touch detection without mechanical buttons or sealed overlays. | Use Scenario: Washing machine control board requiring motor phase current sensing and detergent dispensing actuation. IC Role / Device Role / Timing Role: Real-time motor controller using MCA for FOC, dual SAR ADCs for current sampling, and SCBs for EEPROM and display comms. Use Value: Integrated analog front-end and hardware math acceleration eliminate need for external ADCs and DSP co-processors. |
| Medical Patient Monitors | LED Lighting Systems |
Use Scenario: Portable vital sign monitor with capacitive touch controls and analog sensor signal conditioning. IC Role / Device Role / Timing Role: Signal acquisition hub: opamps condition ECG/SpO₂ signals, SAR ADC digitizes them, and CapSense manages UI. Use Value: Simultaneous sampling and deep-sleep analog operation enable low-noise acquisition while preserving battery life. | Use Scenario: Tunable white LED driver with color-mixing control and thermal derating feedback. IC Role / Device Role / Timing Role: PWM generator and thermal supervisor: TCPWM modulates RGB channels; IDACs drive NTC sensors; SCBs report status to master controller. Use Value: Programmable IDACs and opamp-based sensor interfaces replace discrete bias networks and reduce component count by ≥4 parts per channel. |
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-S433 | Same core, 128 KB flash / 16 KB SRAM, 40 GPIOs, no MCA block | Limited to simpler motor control (scalar V/f) and smaller firmware footprints | Select when cost-sensitive and FOC/PFC acceleration is unnecessary |
| CY8C4547AZI-S475 | Same memory config, adds USB 2.0 FS PHY and dedicated USB interrupt controller | Enables HID-class USB touch devices and firmware updates over USB | Select when native USB connectivity and descriptor handling are required |
Compared with CY8C4546AZI-S433 and CY8C4547AZI-S475, CY8C4548AZI-S485 uniquely balances high memory capacity, motor control acceleration, and CapSense performance - making it optimal for closed-loop motorized appliances with rich HMI.
Availability
CY8C4548AZI-S485 is available at Aetrix Electronics and suitable for industrial HMI panels, smart home appliances, medical patient monitors, and LED lighting systems requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4548AZI-S485 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 embedded controllers, with global R&D centers and ISO/TS 16949-certified manufacturing.
CY8C45xx belongs to the PSoC™ 4500S product line - designed specifically for cost-sensitive, low-power embedded systems requiring integrated analog sensing, capacitive touch, and real-time motor control without external co-processors.
FAQ
What development tools are supported for CY8C4548AZI-S485?
Infineon officially supports ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only, schematic-driven IDE). Both provide full peripheral configuration, CapSense tuning tools, and TCPWM code generation. MiniProg4 is the recommended programmer/debugger, and CY8CKIT-045S serves as the reference pioneer kit with onboard debugger and CapSense slider.
Does CY8C4548AZI-S485 support USB device functionality?
No - CY8C4548AZI-S485 lacks an integrated USB PHY and USB controller. It does not support native USB device or host operation. For USB-capable variants, consider CY8C4547AZI-S475 (USB 2.0 Full-Speed) or CY8C4548LQXI-S485 (USB-capable QFN variant, not pin-compatible).
Can the CapSense feature operate during Deep Sleep mode?
Yes - the CapSense sigma-delta engine remains fully active in Deep Sleep mode with only 2.5 µA total system current. Hardware-based SmartSense auto-tuning continues to run, allowing wake-on-touch with sub-100-ms response and no CPU intervention.
What is the maximum operating temperature rating for CY8C4548AZI-S485?
CY8C4548AZI-S485 is rated for industrial temperature range: –40 °C to +85 °C ambient. The "ZI" suffix denotes this grade. It is not qualified for extended temperature (–40 °C to +105 °C) or automotive AEC-Q100 Grade 2 (–40 °C to +105 °C) operation.
CY8C4548AZI-S485 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-S485 FAQ
1.How can I place an order for CY8C4548AZI-S485 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4548AZI-S485 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-S485 reliable?
The price and inventory of CY8C4548AZI-S485 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4548AZI-S485 is usually 5 days.
3.What payment methods are accepted for CY8C4548AZI-S485?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4548AZI-S485 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4548AZI-S485?
CY8C4548AZI-S485 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4548AZI-S485 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-S485?
For technical support, including CY8C4548AZI-S485 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4548AZI-S485 requirements.
6.How does Aetrix verify that CY8C4548AZI-S485 is sourced from the original manufacturer or authorized distributors?
All CY8C4548AZI-S485 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-S485 meets industry standards.
7.What is the process for return or replacement of CY8C4548AZI-S485?
All CY8C4548AZI-S485 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4548AZI-S485, 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-S485 part is unused and in its original packaging.
Return procedure for CY8C4548AZI-S485:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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