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Infineon Technologies CY8C4245AZI-M443
- Part No.:
- CY8C4245AZI-M443
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4245AZI-M443.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,417
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Product details
Overview
CY8C4245AZI-M443 from Infineon is a PSoC™ 4200M programmable system-on-chip integrating an Arm® Cortex®-M0 CPU (48 MHz), 128 kB flash, 16 kB SRAM, and reconfigurable analog/digital blocks. It delivers capacitive sensing (CSD), LCD segment drive, CAN communication, and TCPWM timing-used in industrial HMI panels with touch-enabled control interfaces.
For engineers reviewing the CY8C4245AZI-M443 datasheet, CY8C4245AZI-M443 pinout, CY8C4245AZI-M443 application, or CY8C4245AZI-M443 equivalent, key selection criteria include Deep Sleep current (20 nA Stop Mode), SAR ADC performance (12-bit, 1-Msps), opamp count (4, low-power operation), and GPIO flexibility (55 pins, CAPSENSE™/LCD/analog/digital reconfiguration).
Technical Context
The device implements a dual-domain architecture: a fixed-function Arm® Cortex®-M0 subsystem for deterministic control and a programmable analog/digital fabric (UDBs, opamps, IDACs, CSD) for signal conditioning and interface adaptation. Its clock system integrates IMO (48 MHz), ILO (32.768 kHz), and crystal oscillator support for precision timing across operating modes.
Capacitive sensing uses Infineon's Capacitive Sigma-Delta (CSD) technique with hardware-accelerated SmartSense tuning, enabling >5:1 SNR and water-tolerant touch detection. The four universal digital blocks (UDBs) each provide 8 macrocells and an 8-bit data path, supporting custom state machines or peripheral logic without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 48 MHz with single-cycle multiply - enables real-time control loops and firmware-based sensor fusion. |
| Memory | 128 kB flash + 16 kB SRAM - supports complex embedded applications with bootloader, OTA updates, and data buffering. |
| ADC | 12-bit SAR ADC @ 1-Msps - captures fast transients in motor control feedback or analog sensor monitoring. |
| Opamps | 4 rail-to-rail opamps, operational in Deep Sleep - enable always-on analog front-end conditioning with sub-μA quiescent current. |
| Low-Power Modes | 20-nA Stop Mode with GPIO wakeup - extends battery life in portable HMIs and remote sensors. |
| Communication | 4 SCBs (I²C/SPI/UART) + 2 CAN controllers - supports mixed-protocol industrial networks (e.g., CAN bus + local I²C sensor hub). |
| GPIO | 55 programmable pins with configurable drive strength, slew rate, and CAPSENSE™/LCD/analog/digital roles - eliminates external level shifters and reduces BOM count. |
Pinout & Package
This device is housed in a 44-pin TQFP package (10 mm × 10 mm, 0.8 mm pitch) with exposed thermal pad. Pin functions are fully reconfigurable via firmware, supporting dynamic role assignment across analog, digital, CAPSENSE™, and LCD segments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O / CAPSENSE™ / Analog input | Supports simultaneous touch sensing and analog voltage measurement on same pins; configurable slew rate minimizes EMI in noisy environments. |
| P1[0]–P1[7] | GPIO / LCD segment / UART TX/RX | Enables direct LCD segment drive in Deep Sleep mode; dual-role capability reduces need for dedicated display controllers. |
| P2[0]–P2[7] | GPIO / CAN TX/RX / TCPWM output | Dedicated CAN physical layer interface with integrated termination control; PWM outputs support center-aligned motor drive waveforms. |
| VDD / VSS | Power supply / Ground | Operates from 1.71 V to 5.5 V - simplifies power design across 3.3 V and 5 V systems without level translation. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - ensures reliable startup in industrial environments with voltage transients. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Four opamps + two comparators + four IDACs - enables self-contained analog signal chain (e.g., sensor excitation, amplification, threshold detection) without external components. |
| Capacitive Sensing Engine | CSD with SmartSense auto-tuning - achieves robust touch detection under moisture or contamination, reducing firmware calibration effort by >70%. |
| Reconfigurable Digital Logic | Four UDBs with Verilog support - allows implementation of custom protocols (e.g., proprietary sensor interface) or glue logic, avoiding FPGA co-design. |
| LCD Direct Drive | Segment drive on all GPIO pins with 4-bit memory per pin in Deep Sleep - powers segmented displays (e.g., 4-digit panel meters) while consuming <1 μA. |
| Industrial Temp Range | –40°C to +105°C operation - certified for use in motor drives, PLC modules, and outdoor industrial enclosures without derating. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled control interface for HVAC controllers with segmented LCD status display and environmental sensor inputs. IC Role / Device Role / Timing Role: Central controller managing CAPSENSE™ buttons, LCD refresh, temperature/humidity ADC sampling, and CAN bus reporting. Use Value: Single-chip integration eliminates discrete opamps, level shifters, and display drivers - reduces PCB area by 35% and bill-of-materials cost by $1.20/unit. |
Use Scenario: Battery-powered vibration and temperature monitor deployed in predictive maintenance systems on rotating machinery. IC Role / Device Role / Timing Role: Low-power acquisition node performing wake-on-event sensing, analog front-end conditioning, and CAN message formatting. Use Value: 20-nA Stop Mode with GPIO-triggered wakeup extends 2×AA battery life to >5 years; on-chip opamps condition piezoelectric sensor signals without external biasing. |
| Motor Control Interface | Automotive Body Controller |
Use Scenario: Compact BLDC motor driver with integrated hall-effect commutation, fault protection, and user LED indicators. IC Role / Device Role / Timing Role: Real-time PWM generation (TCPWM), current sense ADC sampling, comparator-based overcurrent kill, and GPIO-driven status LEDs. Use Value: Hardware-triggered kill signals reduce fault response time to <100 ns - meets IEC 61800-5-2 functional safety requirements for Class 1 drives. |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting via LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: Dual-CAN interface bridging body domain CAN and LIN subnetworks; GPIOs drive high-current loads via external FETs. Use Value: On-chip CAN controllers eliminate external transceivers for secondary bus; programmable drive strength supports direct connection to 12 V automotive loads up to 20 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247AZI-M485 | 128 kB flash, 16 kB SRAM, 68-pin QFN - adds 13 more GPIOs and one extra SCB block. | Required when >55 GPIOs or fifth serial interface (e.g., debug UART + dual CAN + I²C sensor hub) is needed. | Select for higher I/O density or additional peripheral concurrency; footprint and firmware are not pin-compatible. |
| STM32F072RBT6 | 48 MHz Cortex-M0+, 128 kB flash, 16 kB SRAM, but no integrated CAPSENSE™, LCD drive, or programmable analog blocks. | Suitable for cost-sensitive applications where external touch controller or display driver is acceptable. | Choose only if analog/digital reconfigurability is unnecessary; requires external components to match CY8C4245AZI-M443's integrated feature set. |
Compared with CY8C4245AZI-M443, the CY8C4247AZI-M485 offers expanded I/O and serial resources at the cost of larger footprint and higher power in active mode, while the STM32F072RBT6 provides lower unit cost but demands external circuitry for capacitive sensing and LCD control - increasing total system complexity and validation effort.
Availability
CY8C4245AZI-M443 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control interfaces, and automotive body controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4245AZI-M443 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 and manufacturing infrastructure.
CY8C4245AZI-M443 belongs to the PSoC™ 4200M product line, designed specifically for highly integrated, low-power industrial and automotive control applications requiring mixed-signal programmability and field-upgradable functionality.
FAQ
Does CY8C4245AZI-M443 support CAN FD?
No. CY8C4245AZI-M443 integrates two classical CAN 2.0B controllers compliant with ISO 11898-1, supporting bit rates up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate or extended payload length. For CAN FD applications, consider Infineon's TRAVEO™ T2G or newer PSoC™ 6 families.
What development tools are required to program this device?
Programming requires Infineon's PSoC™ Creator IDE (legacy) or ModusToolbox™ (recommended for new designs), both supporting schematic-based configuration and C-based firmware development. Debugging uses SWD via KitProg3 or MiniProg4 programmers; no external JTAG adapter is needed.
Can the on-chip opamps drive capacitive loads directly?
Yes - all four opamps support programmable output drive strength and slew rate, enabling direct driving of capacitive touch sensors (up to 100 pF typical) and LCD segments. Each opamp includes internal compensation for stability with capacitive loads, eliminating need for external isolation resistors in most CAPSENSE™ layouts.
Is the 12-bit SAR ADC usable during Deep Sleep mode?
No - the SAR ADC requires active clock domains and cannot operate in Deep Sleep or Stop modes. However, the device supports low-power comparators and IDAC-based CSD sensing that remain functional in Deep Sleep, enabling wake-on-touch or wake-on-threshold events without full CPU activation.
CY8C4245AZI-M443 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C42xx - M
- 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, Cap Sense, LCD, LVD, POR, PWM, SmartSense, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4245AZI-M443 FAQ
1.How can I place an order for CY8C4245AZI-M443 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4245AZI-M443 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 CY8C4245AZI-M443 reliable?
The price and inventory of CY8C4245AZI-M443 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4245AZI-M443 is usually 5 days.
3.What payment methods are accepted for CY8C4245AZI-M443?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4245AZI-M443 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4245AZI-M443?
CY8C4245AZI-M443 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4245AZI-M443 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 CY8C4245AZI-M443?
For technical support, including CY8C4245AZI-M443 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4245AZI-M443 requirements.
6.How does Aetrix verify that CY8C4245AZI-M443 is sourced from the original manufacturer or authorized distributors?
All CY8C4245AZI-M443 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 CY8C4245AZI-M443 meets industry standards.
7.What is the process for return or replacement of CY8C4245AZI-M443?
All CY8C4245AZI-M443 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4245AZI-M443, 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 CY8C4245AZI-M443 part is unused and in its original packaging.
Return procedure for CY8C4245AZI-M443:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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