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Infineon Technologies CY8C4548AZI-S483
- Part No.:
- CY8C4548AZI-S483
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4548AZI-S483.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,562
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Product details
Overview
CY8C4548AZI-S483 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 two 12-bit 1-Msps SAR ADCs, four opamps, five reconfigurable Serial Communication Blocks (SCBs), and eight TCPWM blocks. Used in human-interface embedded systems requiring robust touch control and mixed-signal processing.
For engineers reviewing the CY8C4548AZI-S483 datasheet, CY8C4548AZI-S483 pinout, CY8C4548AZI-S483 application, or CY8C4548AZI-S483 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), programmable analog/digital routing, and compatibility with ModusToolbox™ and PSoC™ Creator design environments.
Technical Context
The device integrates a single-core Arm Cortex-M0+ CPU with hardware-accelerated divide/square-root units for motor control algorithms. Its analog subsystem includes dual simultaneous-sampling SAR ADCs, configurable opamp modes (buffer/comparator/external drive), and sigma-delta capacitance sensing with SmartSense auto-tuning.
Digital resources comprise five SCBs supporting runtime-reconfigurable I²C/SPI/UART, eight TCPWM blocks with quadrature decode and comparator-triggered kill signals, and programmable logic blocks for Boolean port-level operations - all routed via automatic digital interconnect fabric.
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. |
| ADC Performance | Two 12-bit SAR ADCs, 1 Msps, differential mode, channel sequencer with averaging - allows synchronized multi-channel sensor acquisition. |
| CapSense SNR | >5:1 signal-to-noise ratio with water tolerance - delivers reliable touch detection in humid or wet environments. |
| Low-Power Mode | Deep Sleep at 2.5 µA system current with operational analog - enables battery-powered UI devices with multi-year operation. |
| GPIO Count | Up to 53 programmable pins in 48-pin TQFP package - supports flexible pin assignment for CapSense, analog, and digital functions. |
| Communication Blocks | Five SCBs, each reconfigurable as I²C/SPI/UART - eliminates need for external protocol translators in multi-peripheral systems. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O banks. |
| VSS | Ground reference | Common return path for all internal circuits and external peripherals. |
| P0[0]–P0[7] | Programmable GPIO bank | Support CapSense, analog input/output, digital logic, or serial interface functions per configuration. |
| SWDCLK / SWDIO | Serial Wire Debug interface | Enables full-chip programming, tracing, and real-time debugging using standard Arm SWD protocol. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally for reliable power-on and fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CapSense calibration eliminates manual tuning and ensures consistent performance across temperature/humidity variations. |
| Reconfigurable SCBs | Each of five serial blocks can be independently assigned I²C/SPI/UART at runtime - reduces BOM count and simplifies firmware updates. |
| Deep Sleep analog operation | Opamps, comparators, and CapSense block remain active at 2.5 µA system current - enables wake-on-touch in ultra-low-power applications. |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide unit accelerates FOC and PFC calculations - offloads CPU and improves motor loop timing predictability. |
| Automatic routing fabric | Digital and analog signal paths are synthesized and routed automatically during PSoC™ Creator build - eliminates manual netlist management. |
Applications
| Home Appliance Control Panel | Industrial HMI Terminal |
|---|---|
Use Scenario: Touch-enabled oven/microwave control interface with water-resistant overlay and status LED feedback. IC Role / Device Role / Timing Role: Primary MCU executing CapSense scanning, PWM-driven LED dimming, UART communication to main controller, and real-time timer-based cooking countdown. Use Value: >5:1 CapSense SNR ensures reliable touch detection under condensation; Deep Sleep mode extends battery backup life during standby. | Use Scenario: Ruggedized factory-floor operator terminal with rotary encoder emulation and alarm annunciator outputs. IC Role / Device Role / Timing Role: System controller managing quadrature-decoded knob input, TCPWM-driven buzzer alerts, and SPI-connected display driver. Use Value: Quadrature decoder + comparator-triggered kill signals enable safe, responsive emergency stop handling without CPU intervention. |
| Smart Thermostat Interface | Medical Device Keypad |
Use Scenario: Battery-powered wall-mounted thermostat with ambient light sensing, temperature reading, and capacitive buttons. IC Role / Device Role / Timing Role: Integrated sensor hub performing SAR ADC sampling (temp/light), CapSense button scan, and BLE-ready UART communication. Use Value: Dual 1-Msps SAR ADCs allow simultaneous temperature and ambient light acquisition; 2.5 µA Deep Sleep enables 5+ year coin-cell operation. | Use Scenario: Sterilizable medical instrument keypad requiring ESD-hardened touch response and fail-safe actuation feedback. IC Role / Device Role / Timing Role: Safety-critical UI controller validating touch inputs against redundant analog thresholds and driving isolated LED indicators. Use Value: Programmable opamp comparator modes with hysteresis provide noise-immune input validation; flash protection disables debug to prevent firmware tampering. |
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-S475 | Same PSoC™ 4500S family, but 128 KB flash, 16 KB SRAM, and 44 GPIOs in 48-pin TQFP. | Suitable for cost-sensitive designs with reduced firmware footprint and fewer peripheral connections. | Select when full 256 KB flash and 53 GPIOs are not required; maintains identical CapSense and low-power architecture. |
| CY8C4547AZI-S482 | Identical flash/SRAM/GPIO count, but packaged in 64-pin TQFP (0.5 mm pitch) with additional analog/digital resources. | Enables higher I/O density and extra SCB/TCPWM blocks for complex industrial control or multi-sensor fusion. | Choose when board layout allows larger package and additional peripherals justify increased pin count and routing complexity. |
Compared with CY8C4546AZI-S475 and CY8C4547AZI-S482, the CY8C4548AZI-S483 offers optimal balance of memory, I/O, and package size for mid-tier embedded UI applications - delivering full CapSense capability and Deep Sleep efficiency without over-provisioning.
Availability
CY8C4548AZI-S483 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI terminals, smart thermostats, and medical device keypads requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4548AZI-S483 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 embedded solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4500S product line - designed specifically for cost-optimized, low-power embedded systems requiring integrated analog sensing, capacitive touch, and flexible digital connectivity in a single chip.
FAQ
What development tools are officially supported for CY8C4548AZI-S483?
Infineon officially supports both ModusToolbox™ (cross-platform, IDE-neutral) and PSoC™ Creator (Windows-only, schematic-driven). ModusToolbox™ provides peripheral configurators and BSPs for CY8CKIT-045S, while PSoC™ Creator enables drag-and-drop Component-based design with automatic analog/digital routing and built-in CapSense tuning tools.
Does CY8C4548AZI-S483 support hardware encryption or secure boot?
No - CY8C4548AZI-S483 does not include dedicated cryptographic accelerators or hardware secure boot. It offers flash protection bits and debug disable capability for basic IP protection, but lacks AES/SHA engines or public-key acceleration found in PSoC™ 6 or AURIX™ families.
Can the on-chip opamps drive external loads directly?
Yes - the four programmable opamps support high-drive external mode with up to 25 mA output current and rail-to-rail swing, enabling direct interface to sensors, transducers, or LED drivers without external buffers, provided load impedance and thermal limits are observed per datasheet Section 5.3.
Is the 48-pin TQFP package of CY8C4548AZI-S483 compatible with reflow soldering per J-STD-020?
Yes - the CY8C4548AZI-S483 in 48-pin TQFP (7×7 mm, 0.5 mm pitch) is qualified for standard lead-free reflow per J-STD-020D. Peak temperature is 260 °C, with maximum time above 217 °C limited to 60–150 seconds depending on profile classification; full details are in Infineon Package Outline Document 002-26354 Rev. *E, Section 7.
CY8C4548AZI-S483 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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:
- 38
- 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-S483 FAQ
1.How can I place an order for CY8C4548AZI-S483 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4548AZI-S483 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-S483 reliable?
The price and inventory of CY8C4548AZI-S483 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4548AZI-S483 is usually 5 days.
3.What payment methods are accepted for CY8C4548AZI-S483?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4548AZI-S483 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4548AZI-S483?
CY8C4548AZI-S483 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4548AZI-S483 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-S483?
For technical support, including CY8C4548AZI-S483 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4548AZI-S483 requirements.
6.How does Aetrix verify that CY8C4548AZI-S483 is sourced from the original manufacturer or authorized distributors?
All CY8C4548AZI-S483 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-S483 meets industry standards.
7.What is the process for return or replacement of CY8C4548AZI-S483?
All CY8C4548AZI-S483 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4548AZI-S483, 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-S483 part is unused and in its original packaging.
Return procedure for CY8C4548AZI-S483:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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