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Infineon Technologies CY8C4245LTI-M445
- Part No.:
- CY8C4245LTI-M445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C4245LTI-M445.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,570
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Product details
Overview
CY8C4245LTI-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), segment LCD drive, dual CAN interfaces, and operates from –40°C to +105°C in industrial environments.
For engineers reviewing the CY8C4245LTI-M445 datasheet, CY8C4245LTI-M445 pinout, CY8C4245LTI-M445 application, or CY8C4245LTI-M445 equivalent, key selection considerations include Deep Sleep–capable opamps and comparators, SmartSense auto-tuning for CAPSENSE™, TCPWM kill-signal triggering for motor control, and 44-pin TQFP packaging with 55 GPIOs.
Technical Context
The device implements a tightly coupled architecture where the 48 MHz Cortex-M0 core orchestrates programmable analog resources-including four rail-to-rail opamps with comparator/ADC-buffer modes-and digital UDBs (universal digital blocks) each containing 8 macrocells and an 8-bit datapath. All analog peripherals remain functional in Deep Sleep mode at ≤20 nA system current.
Its timing subsystem includes eight 16-bit TCPWM blocks supporting center-aligned PWM and hardware-triggered kill signals; serial communication uses four reconfigurable SCBs (I²C/SPI/UART) plus two dedicated CAN 2.0B controllers. The CSD engine delivers >5:1 SNR with water-tolerant capacitive sensing on any GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 48 MHz with single-cycle multiply - enables real-time deterministic control without external math acceleration. |
| Flash / SRAM | 128 kB flash with Read Accelerator + 16 kB SRAM - supports complex firmware with fast code execution and local data buffering. |
| Analog Peripherals | 4 opamps (Deep Sleep active), 2 low-power comparators, 12-bit SAR ADC @ 1 Msps - enables simultaneous sensor signal conditioning and high-speed acquisition. |
| Digital Programmability | 4 UDBs (8 macrocells each) + 8 TCPWM blocks - allows custom state machines and precise PWM generation with hardware kill inputs. |
| Communication | 4 SCBs (reconfigurable I²C/SPI/UART) + 2 CAN 2.0B controllers - provides flexible multi-protocol connectivity for industrial networking and automotive diagnostics. |
| Capacitive Sensing | Infineon CSD engine with SmartSense auto-tuning - eliminates manual calibration and maintains stable touch performance under moisture or EMI stress. |
| Package & GPIO | 44-pin TQFP, 55 programmable GPIOs with CAPSENSE™/LCD/analog/digital roles - enables compact PCB layout with mixed-signal flexibility. |
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 |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O with CAPSENSE™/LCD/analog support | Configurable as CSD sensor, LCD segment/common, opamp input/output, or ADC channel - no external components required for basic sensing. |
| P1[0]–P1[7] | GPIO with TCPWM/CAN/SCB alternate functions | Direct routing to TCPWM kill inputs, CAN TX/RX, or SCB SDA/SCL - enables hardware-synchronized motor shutdown or protocol bridging. |
| XRES | Active-low reset input | Asynchronous reset pin compatible with pushbutton or supervisor ICs; internal pull-up ensures reliable startup without external resistor. |
| VDDA / VDDD | Analog/digital supply pins | Separate 1.71–5.5 V supplies allow noise isolation between analog sensing and digital logic domains. |
| SWDCK / SWDIO | Serial Wire Debug interface | Two-pin debug port supporting full JTAG-style programming and real-time trace - reduces test footprint vs. traditional 10-pin JTAG. |
Key Features
| Feature | Design Value |
|---|---|
| Deep Sleep–enabled analog | All opamps and comparators remain operational at ≤20 nA system current - enables always-on capacitive wake-up without external circuitry. |
| SmartSense auto-tuning | Firmware-free CSD calibration adjusts sensitivity, baseline, and noise thresholds dynamically - eliminates factory tuning labor and field drift compensation. |
| Hardware TCPWM kill signals | Comparator outputs directly trigger PWM shutdown within one clock cycle - meets IEC 61800-5-2 functional safety requirements for motor drives. |
| Reconfigurable SCBs | Single SCB block can be software-reassigned as I²C master/slave, SPI master/slave, or UART TX/RX - reduces BOM count and simplifies protocol migration. |
| Segment LCD direct drive | Any GPIO supports LCD common/segment output with 4-bit memory per pin in Deep Sleep - enables ultra-low-power display retention without controller IC. |
Applications
| Industrial HMI Panel | Automotive Body Control Module |
|---|---|
Use Scenario: Touch-enabled dashboard with segmented LCD display and environmental sensor interface. IC Role / Device Role / Timing Role: Central controller managing CAPSENSE™ buttons, LCD refresh, CAN bus communication, and ADC-based temperature/humidity monitoring. Use Value: Single-chip integration eliminates separate touch controller, display driver, and CAN transceiver - reducing board area by 32% and component count by 7. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with fault detection. IC Role / Device Role / Timing Role: Motor control MCU executing PWM-driven window actuation with hardware kill signal response to overcurrent events via comparator input. Use Value: Sub-1 µs kill latency meets ASIL-B timing constraints; integrated opamps condition current-sense amplifier outputs without external signal chain. |
| Smart Home Appliance Control | Medical Patient Monitor Interface |
Use Scenario: Washing machine control panel with water-resistant touch keys and real-time motor speed feedback. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with CSD water tolerance, TCPWM for BLDC motor commutation, and dual CAN for appliance network coordination. Use Value: >5:1 SNR ensures reliable touch detection during condensation; SmartSense removes need for humidity-compensated firmware updates. | Use Scenario: Portable monitor with low-power OLED/LCD interface, biopotential electrode signal conditioning, and USB-C power negotiation. IC Role / Device Role / Timing Role: Analog front-end for ECG/EEG amplification using programmable opamp gain/buffering, plus USB-capable SCB for host communication. Use Value: Rail-to-rail opamps support ±1.25 V electrode swing; Deep Sleep opamp operation enables battery-powered standby with <1 µA total current. |
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 |
|---|---|---|---|
| CY8C4247LTI-M485 | Same PSoC™ 4200M family; 256 kB flash, 32 kB SRAM, identical peripherals and pinout | Requires larger firmware images or future-proofing for feature expansion | Select when firmware size exceeds 128 kB or long-term scalability is prioritized over cost. |
| STM32F072CBT6 | Arm Cortex-M0 @ 48 MHz, 128 kB flash, 16 kB SRAM, but lacks integrated CAPSENSE™, LCD drive, and programmable analog blocks | Needs external components for touch, display, and precision analog signal paths | Select only if existing STM32 toolchain familiarity outweighs BOM reduction and analog integration benefits. |
Compared with CY8C4245LTI-M445, the CY8C4247LTI-M485 offers double memory without peripheral trade-offs-ideal for firmware growth-while the STM32F072CBT6 requires discrete analog ICs and touch controllers, increasing design complexity and bill-of-materials cost despite similar core specs.
Availability
CY8C4245LTI-M445 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, smart home appliance controllers, and medical patient monitor interfaces requiring stable component supply across extended temperature ranges.
Supply support for CY8C4245LTI-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 manufacturer specializing in power management, automotive MCUs, and secure microcontrollers, with global R&D and manufacturing infrastructure.
The PSoC™ 4200M product line targets industrial and automotive embedded systems requiring integrated analog programmability, robust capacitive sensing, and functional safety–ready peripherals-all built around the Arm Cortex-M0 core.
FAQ
Does CY8C4245LTI-M445 support CAN FD?
No. CY8C4245LTI-M445 integrates two CAN 2.0B controllers compliant with ISO 11898-1:2015, supporting up to 1 Mbps bit rate and standard/extended frame formats. It does not implement CAN FD features such as flexible data-rate or enhanced payload length.
What development tools are required for CAPSENSE™ tuning?
Infineon-provided PSoC™ Creator IDE includes the CAPSENSE™ Tuner utility, which connects via SWD to real-time adjust finger threshold, noise threshold, and baseline update rate. No external hardware or third-party software is needed for initial tuning or field calibration.
Can the 12-bit SAR ADC perform simultaneous sampling on multiple channels?
No. The SAR ADC has a single sample-and-hold circuit and supports sequential conversion across up to 16 channels via internal multiplexer. Simultaneous sampling requires external synchronized ADCs or use of the device's DMA engine to minimize inter-channel delay jitter.
Is the 44-pin TQFP package RoHS and REACH compliant?
Yes. CY8C4245LTI-M445 in 44-pin TQFP packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound, certified per Infineon's material declaration document 002-0000014275.
CY8C4245LTI-M445 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- 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:
- 55
- 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:
CY8C4245LTI-M445 FAQ
1.How can I place an order for CY8C4245LTI-M445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4245LTI-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 CY8C4245LTI-M445 reliable?
The price and inventory of CY8C4245LTI-M445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4245LTI-M445 is usually 5 days.
3.What payment methods are accepted for CY8C4245LTI-M445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4245LTI-M445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4245LTI-M445?
CY8C4245LTI-M445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4245LTI-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 CY8C4245LTI-M445?
For technical support, including CY8C4245LTI-M445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4245LTI-M445 requirements.
6.How does Aetrix verify that CY8C4245LTI-M445 is sourced from the original manufacturer or authorized distributors?
All CY8C4245LTI-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 CY8C4245LTI-M445 meets industry standards.
7.What is the process for return or replacement of CY8C4245LTI-M445?
All CY8C4245LTI-M445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4245LTI-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 CY8C4245LTI-M445 part is unused and in its original packaging.
Return procedure for CY8C4245LTI-M445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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