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Infineon Technologies CY8C4245AZI-M445
- Part No.:
- CY8C4245AZI-M445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4245AZI-M445.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,138
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Product details
Overview
CY8C4245AZI-M445 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 supports capacitive sensing (CSD), LCD segment drive, CAN communication, and TCPWM for motor control in industrial HMI and sensor-edge applications.
For engineers reviewing the CY8C4245AZI-M445 datasheet, CY8C4245AZI-M445 pinout, CY8C4245AZI-M445 application, or CY8C4245AZI-M445 equivalent, key selection criteria include Deep Sleep power (20 nA), SAR ADC performance (12-bit, 1 Msps), opamp count (4), UDB programmability, and 44-pin TQFP package compatibility with GPIO/CAPSENSE/LCD multiplexing.
Technical Context
The device implements a dual-domain architecture: a fixed-function Arm® Cortex®-M0 subsystem with DMA and memory hierarchy, and a configurable fabric of Universal Digital Blocks (UDBs) and programmable analog resources. Clocking includes IMO (48 MHz), ILO (32.768 kHz), and crystal oscillator support for precision timing.
Analog subsystem features four rail-to-rail opamps with comparator mode, two low-power comparators active in Deep Sleep, and a 12-bit SAR ADC with hardware-accelerated sampling. Digital peripherals include four SCBs (I²C/SPI/UART), two CAN 2.0B controllers, eight TCPWM blocks with kill-input triggering, and LCD direct drive on all GPIOs.
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 signal processing without external co-processors. |
| Flash / SRAM | 128 kB flash with Read Accelerator; 16 kB SRAM - supports complex embedded applications with firmware updates and data buffering in resource-constrained edge nodes. |
| ADC Performance | 12-bit SAR ADC, 1 Msps conversion rate - delivers high-resolution sensor acquisition for industrial monitoring and closed-loop feedback systems. |
| Low-Power Modes | 20 nA Stop Mode with GPIO wakeup; Deep Sleep with opamps/comparators active - extends battery life in portable and energy-harvested IoT endpoints. |
| Capacitive Sensing | Infineon CSD engine with >5:1 SNR and SmartSense auto-tuning - enables robust touch interfaces resistant to water and environmental noise in consumer and industrial panels. |
| Package & I/O | 44-pin TQFP, –40°C to +105°C operation, up to 55 programmable GPIOs - suitable for harsh-environment industrial control and automotive cabin modules. |
| CAN Interface | Two independent CAN 2.0B controllers - supports dual-bus networking for distributed control systems and functional safety redundancy. |
Pinout & Package
Package: 44-pin TQFP (10 mm × 10 mm, 0.8 mm pitch), RoHS-compliant, lead-free, industrial temperature grade (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local decoupling for stable operation across sleep/wake transitions. |
| GND | Ground reference | Common return path for analog/digital domains; separation not required but recommended for noise-sensitive CAPSENSE™ layouts. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up; compatible with push-button or supervisor IC assertion. |
| SWDCLK / SWDIO | Debug interface signals | Supports programming and real-time debugging via ARM Serial Wire Debug; no external pull-ups needed per datasheet. |
| P0[0]–P0[7] | Programmable GPIO bank | Support CAPSENSE™, LCD segment/common, analog input/output, or digital logic; drive strength and slew rate configurable per pin. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable UDB fabric | Four universal digital blocks (8 macrocells each) enable custom state machines, protocol engines, or glue logic without FPGA overhead or cost. |
| Integrated analog front-end | Four opamps with ADC input buffering, comparator mode, and high-current drive eliminate need for external signal conditioning in sensor interfaces. |
| Hardware-accelerated CAPSENSE™ | CSD engine with automatic SmartSense tuning reduces firmware development time and improves field reliability under moisture or EMI stress. |
| Flexible serial connectivity | Four SCBs independently configurable as I²C, SPI, or UART - simplifies multi-peripheral integration (e.g., sensor hub + display + host MCU) without pin conflicts. |
| LCD direct drive | Segment/common drive on all GPIOs with 4-bit memory per pin in Deep Sleep - enables ultra-low-power segmented displays in battery-operated HMIs. |
Applications
| Industrial HMI Panel | Automotive Cabin Control |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC, lighting, and window functions in commercial vehicles. IC Role / Device Role / Timing Role: Main controller executing CAPSENSE™ scanning, LCD segment refresh, CAN message routing, and PWM fan speed regulation. Use Value: Single-chip integration eliminates discrete touch controller and display driver, reducing BOM count and PCB area while maintaining <20 nA standby current. | Use Scenario: Driver-facing switch replacement with haptic feedback and moisture-tolerant touch sensing. IC Role / Device Role / Timing Role: Capacitive sensing processor with SmartSense auto-calibration and CAN bus interface for vehicle network reporting. Use Value: >5:1 SNR ensures reliable detection through condensation or light spills; Deep Sleep wake-on-touch enables instant response from ultra-low-power state. |
| Smart Sensor Node | Motor Drive Monitor |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and motion data for predictive maintenance. IC Role / Device Role / Timing Role: Data acquisition hub using SAR ADC, opamp-signal conditioning, and low-power wireless MCU interface via UART/I²C. Use Value: 12-bit ADC + programmable gain opamps enable direct connection to thermistors and analog sensors without external amplifiers or level-shifting. | Use Scenario: Inverter board auxiliary controller monitoring gate drive health, temperature, and fault signals. IC Role / Device Role / Timing Role: Fault manager using TCPWM kill-input triggers, comparator-based overcurrent detection, and CAN fault broadcast. Use Value: Hardware-triggered kill signals reduce response latency to <100 ns, improving IGBT/MOSFET protection integrity during short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247AZI-M485 | Same PSoC™ 4200M family; 256 kB flash, 32 kB SRAM, identical peripherals and pinout - higher memory capacity only. | Required when firmware size exceeds 128 kB or extended data logging buffers needed. | Select if future firmware growth or OTA update partitioning demands larger non-volatile storage. |
| STM32L476RG | Arm Cortex-M4 @ 80 MHz, 1 MB flash, 128 kB SRAM; no integrated CAPSENSE™ or UDB fabric; external touch controller needed. | Suitable for high-performance compute tasks but lacks hardware-accelerated capacitive sensing and analog reconfigurability. | Choose when floating-point math, USB, or advanced crypto acceleration outweighs integrated analog flexibility. |
Compared with CY8C4245AZI-M445, the CY8C4247AZI-M485 offers scalable memory within identical architecture and footprint, while the STM32L476RG trades programmable analog/digital blocks for higher CPU performance and broader ecosystem tooling - making it less optimal for CAPSENSE™-centric or mixed-signal customization.
Availability
CY8C4245AZI-M445 is available at Aetrix Electronics and suitable for industrial HMI, automotive cabin controls, smart sensor nodes, and motor drive monitors requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4245AZI-M445 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 leader specializing in power management, automotive ICs, and embedded security solutions, with global manufacturing and R&D infrastructure.
The PSoC™ 4200M product line targets programmable mixed-signal control in space- and power-constrained edge devices, emphasizing hardware-accelerated capacitive sensing, low-power operation, and analog/digital reconfigurability for rapid prototyping and field adaptation.
FAQ
Does CY8C4245AZI-M445 support CAN FD?
No. The device integrates two CAN 2.0B controllers compliant with ISO 11898-1:2003, supporting bit rates up to 1 Mbps and standard/extended frame formats. CAN FD functionality is not implemented in the PSoC™ 4200M series; it requires newer PSoC™ 6 or AURIX™ families.
What development tools are required for CAPSENSE™ tuning?
Infineon's PSoC™ Creator IDE (legacy) or ModusToolbox™ (current) is required, both including the CAPSENSE™ Tuner utility. This GUI tool connects via KitProg3 to perform real-time parameter adjustment, SNR analysis, and baseline calibration - no external test equipment needed.
Can all GPIO pins drive LCD segments in Deep Sleep mode?
Yes. All GPIOs support LCD segment/common drive with 4-bit memory retention in Deep Sleep mode. The LCD clock remains active from the ILO, enabling continuous display refresh at ≤100 µA total current - verified in datasheet Section 6.4.3 and Figure 6-25.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No. The SAR ADC uses a single sample-and-hold circuit and sequential channel scanning. While it achieves 1 Msps aggregate throughput, true simultaneous sampling requires external parallel ADCs or devices with multiple independent ADC cores like PSoC™ 6.
CY8C4245AZI-M445 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C42xx - M
- Packaging:
- Bulk
- 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:
- 51
- 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-M445 FAQ
1.How can I place an order for CY8C4245AZI-M445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4245AZI-M445 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-M445 reliable?
The price and inventory of CY8C4245AZI-M445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4245AZI-M445 is usually 5 days.
3.What payment methods are accepted for CY8C4245AZI-M445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4245AZI-M445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4245AZI-M445?
CY8C4245AZI-M445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4245AZI-M445 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-M445?
For technical support, including CY8C4245AZI-M445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4245AZI-M445 requirements.
6.How does Aetrix verify that CY8C4245AZI-M445 is sourced from the original manufacturer or authorized distributors?
All CY8C4245AZI-M445 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-M445 meets industry standards.
7.What is the process for return or replacement of CY8C4245AZI-M445?
All CY8C4245AZI-M445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4245AZI-M445, 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-M445 part is unused and in its original packaging.
Return procedure for CY8C4245AZI-M445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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