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Infineon Technologies CY8C4548AZQ-S485
- Part No.:
- CY8C4548AZQ-S485
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4548AZQ-S485.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,264
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Product details
Overview
CY8C4548AZQ-S485 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 four opamps, two 12-bit 1-Msps SAR ADCs, five reconfigurable Serial Communication Blocks (I²C/SPI/UART), and eight TCPWM blocks. Used in industrial HMI touch panels requiring robust water-tolerant sensing and real-time motor control.
For engineers reviewing the CY8C4548AZQ-S485 datasheet, CY8C4548AZQ-S485 pinout, CY8C4548AZQ-S485 application, or CY8C4548AZQ-S485 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), 48-MHz CPU clock, programmable analog/digital routing, and 48-pin TQFP package compatibility with PSoC™ Creator and ModusToolbox™ toolchains.
Technical Context
The device integrates a single-cycle multiply Arm Cortex-M0+ core with dual Divide/Square Root accelerators for Field-Oriented Control (FOC) and Power Factor Correction (PFC). Its analog subsystem includes simultaneous-sampling dual SAR ADCs, opamps configurable as buffers or comparators, and IDACs supporting on-pin capacitance sensing.
Digital resources include eight TCPWM blocks with quadrature decode, comparator-triggered kill signals for motor safety, and five SCBs that dynamically switch between I²C, SPI, and UART protocols without firmware reload-enabling flexible peripheral allocation in resource-constrained embedded designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables deterministic real-time execution with <100 ns interrupt latency |
| Flash / SRAM | 256 KB flash with Read Accelerator / 32 KB SRAM - supports complex firmware with bootloader + application partitioning |
| Analog ADC | Two 12-bit 1-Msps SAR ADCs with channel sequencer and signal averaging - allows synchronized multi-sensor acquisition in motor feedback loops |
| CapSense SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under wet or noisy industrial environments |
| Low-power Mode | Deep Sleep at 2.5 µA with operational analog - sustains capacitive wake-up and sensor monitoring without external circuitry |
| GPIO Count | Up to 53 programmable pins in 48-pin TQFP - all support CapSense, analog input, or digital logic with configurable drive strength/slew rate |
| Communication Blocks | Five SCBs - each independently reconfigurable as I²C master/slave, SPI master/slave, or UART - eliminates need for external protocol translators |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply | 1.71–5.5 V operation; powers digital core, analog blocks, and GPIOs |
| VSS | GND reference | Digital and analog ground plane connection point for noise isolation |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, analog input, or digital I/O; configurable slew rate and drive strength |
| P1[0]–P1[7] | Programmable GPIO | Include dedicated SWD debug pins (SWDIO/SWCLK); support high-speed PWM output |
| XRES | Active-low reset | Asynchronous hardware reset with internal pull-up; debounced by firmware |
| XTAL_IN / XTAL_OUT | External crystal interface | Supports 4–33 MHz ECO for precise timing; required for USB or audio-grade clocking |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CapSense calibration eliminates manual tuning across temperature/humidity variations |
| Motor Control Accelerator (MCA) | Dedicated hardware square root/divide block reduces FOC loop execution time by >60% vs. software-only implementation |
| Reconfigurable SCBs | Runtime switching between I²C/SPI/UART on same pins avoids PCB redesign when interface requirements change |
| Programmable analog routing | Continuous-time and switched-capacitor blocks can be interconnected via digital switches - enables custom filter or sensor signal conditioning without external components |
| SWD debug interface | Standard Arm Serial-Wire Debug with full trace and breakpoint support - enables in-system debugging without JTAG header or external emulator |
Applications
| Industrial HMI Touch Panel | Brushless DC Motor Controller |
|---|---|
Use Scenario: Waterproof touch interface on factory-floor operator panels exposed to coolant splashes and EMI. IC Role / Device Role / Timing Role: Primary MCU executing CapSense firmware, TCPWM-driven gate drivers, and UART-based PLC communication. Use Value: >5:1 CapSense SNR and Deep Sleep wake-on-touch enable reliable operation without mechanical buttons or external shielding. | Use Scenario: Closed-loop speed/torque control of HVAC blowers using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time FOC engine with MCA-accelerated math, quadrature decoding, and comparator-triggered fault shutdown. Use Value: Hardware square root/divide cuts FOC loop latency to <2 µs, enabling 20-kHz PWM switching with stable current regulation. |
| Smart Lighting Dimmer | Medical Patient Monitor Front-End |
Use Scenario: DALI-compatible LED driver with capacitive slider dimming and thermal foldback protection. IC Role / Device Role / Timing Role: Dual-role controller managing DALI transceiver (SCB), analog current sensing (SAR ADC), and touch UI (CapSense). Use Value: Single-chip integration replaces discrete MCU + analog front-end + touch ASIC - reducing BOM count by 40%. | Use Scenario: Low-power bedside monitor with ECG electrode contact detection and battery-backed data logging. IC Role / Device Role / Timing Role: Ultra-low-power system controller handling analog front-end biasing, ADC sampling, and BLE connectivity (via SCB + external transceiver). Use Value: 2.5 µA Deep Sleep with active analog monitoring extends battery life to >72 hours on coin cell. |
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 |
|---|---|---|---|
| CY8C4547AZQ-S485 | Same die, 128 KB flash / 16 KB SRAM - reduced memory footprint | Suitable for cost-sensitive designs with simpler CapSense + motor control firmware | Select when application code size <100 KB and no bootloader + OTA requirement exists |
| CY8C4548LQXI-S485 | Same feature set, 64-pin TQFP (0.5 mm pitch) - higher pin count, no LCD segment drive | Preferred for designs needing >53 GPIOs or additional analog routing flexibility | Choose when layout requires more routing layers or future expansion of analog sensor channels |
Compared with CY8C4548LQXI-S485, the CY8C4548AZQ-S485 offers identical functionality in a smaller 48-pin footprint but lacks extra GPIOs; versus CY8C4547AZQ-S485, it provides double flash/SRAM for complex CapSense + motor control stacks with secure boot.
Availability
CY8C4548AZQ-S485 is available at Aetrix Electronics and suitable for industrial HMI touch panels, brushless DC motor controllers, smart lighting dimmers, and medical patient monitor front-ends requiring stable component supply and long-term manufacturability.
Supply support for CY8C4548AZQ-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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security ICs, with global R&D centers and ISO/TS 16949-certified manufacturing.
This part belongs to the PSoC™ 4500S product line, designed specifically for cost-optimized, low-power embedded systems requiring integrated analog sensing, real-time motor control, and capacitive human-machine interfaces.
FAQ
What development tools are officially supported for CY8C4548AZQ-S485?
Infineon officially supports both PSoC™ Creator (Windows-only IDE with schematic-based design) and ModusToolbox™ (cross-platform, Eclipse-based, CLI-driven). The CY8CKIT-045S Pioneer Kit provides hardware validation, while MiniProg4 enables programming/debugging via SWD. BSPs, PDL, and CapSense middleware are included in both toolchains.
Does CY8C4548AZQ-S485 support USB communication?
No, CY8C4548AZQ-S485 does not include a USB PHY or dedicated USB controller. It supports UART, I²C, and SPI via its five SCBs. For USB connectivity, an external USB-to-UART bridge (e.g., CP2102) or companion USB MCU is required - confirmed by absence of USB-related registers and pins in the datasheet block diagram and pinout tables.
Can the on-chip opamps be used for precision sensor signal conditioning?
Yes - the four rail-to-rail opamps support unity-gain stable operation, programmable bandwidth up to 12 MHz, and internal/external drive modes. They are specified for input offset voltage ≤3 mV and CMRR ≥70 dB, enabling direct use with thermistors, RTDs, or bridge sensors without external amplification - verified in Section 5.3 of the datasheet.
Is flash protection and debug disable permanently enforceable on this device?
Yes - flash protection bits and debug disable (via SWD lock) are stored in nonvolatile configuration registers. Once disabled, re-enabling debug requires full chip erase, clearing protection bits, and reprogramming - a hardware-enforced security mechanism documented in Section 2.6 of the Programming Specification (002-26354 Rev. *E).
CY8C4548AZQ-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
- 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, 20x12b SAR; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4548AZQ-S485 FAQ
1.How can I place an order for CY8C4548AZQ-S485 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4548AZQ-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 CY8C4548AZQ-S485 reliable?
The price and inventory of CY8C4548AZQ-S485 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4548AZQ-S485 is usually 5 days.
3.What payment methods are accepted for CY8C4548AZQ-S485?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4548AZQ-S485 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4548AZQ-S485?
CY8C4548AZQ-S485 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4548AZQ-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 CY8C4548AZQ-S485?
For technical support, including CY8C4548AZQ-S485 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4548AZQ-S485 requirements.
6.How does Aetrix verify that CY8C4548AZQ-S485 is sourced from the original manufacturer or authorized distributors?
All CY8C4548AZQ-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 CY8C4548AZQ-S485 meets industry standards.
7.What is the process for return or replacement of CY8C4548AZQ-S485?
All CY8C4548AZQ-S485 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4548AZQ-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 CY8C4548AZQ-S485 part is unused and in its original packaging.
Return procedure for CY8C4548AZQ-S485:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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