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Infineon Technologies CY8C4246LTI-M445
- Part No.:
- CY8C4246LTI-M445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C4246LTI-M445.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,195
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Product details
Overview
CY8C4246LTI-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, CAN communication, and TCPWM for motor control in industrial HMI and automotive body electronics.
For engineers reviewing the CY8C4246LTI-M445 datasheet, CY8C4246LTI-M445 pinout, CY8C4246LTI-M445 application, or CY8C4246LTI-M445 equivalent, key selection criteria include Deep Sleep current (20 nA), SAR ADC performance (12-bit, 1-Msps), opamp count (4), UDB count (4), and CAN block availability (2).
Technical Context
The device implements a dual-domain architecture: a fixed-function CPU subsystem with DMA and memory hierarchy, and a flexible fabric of Universal Digital Blocks (UDBs) enabling custom state machines or peripheral logic. Analog resources include four opamps with comparator/ADC-buffer modes and two low-power comparators-all operational in Deep Sleep mode.
Digital peripherals are runtime-reconfigurable: four Serial Communication Blocks (SCBs) support I²C/SPI/UART, while two dedicated CAN controllers comply with ISO 11898-1. The eight TCPWM blocks support center-aligned PWM and hardware-triggered kill signals for motor safety-critical timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 48 MHz with single-cycle multiply - enables real-time control loops without software overhead. |
| Flash Memory | 128 kB with Read Accelerator - supports fast code execution and firmware updates in field-deployed systems. |
| SRAM | 16 kB - sufficient for RTOS stacks, sensor buffers, and CAN message queues in embedded applications. |
| SAR ADC | 12-bit, 1-Msps - delivers high-resolution analog acquisition for precision sensing or closed-loop feedback. |
| Opamps | 4 units, Deep Sleep–capable - allow always-on analog front-end operation at ultra-low power for wake-on-event designs. |
| CAN Interfaces | 2 independent blocks - enable dual-bus networking for redundancy or domain separation in automotive ECUs. |
| GPIO Count | Up to 55 programmable pins - supports mixed-signal routing for CAPSENSE™, LCD, analog, and digital functions on shared pins. |
Pinout & Package
Package: 44-pin TQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, industrial temperature range (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers all digital logic, analog blocks, and GPIO drivers. |
| GND | Ground reference | Common return path for analog/digital domains; requires separate analog/digital ground layout. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable boot without external components. |
| SWDCLK / SWDIO | Debug interface | Two-pin ARM Serial Wire Debug port for programming and real-time trace during development and field updates. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, LCD segment/common, analog input/output, or digital logic per configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Sensing (CSD) | Infineon's Sigma-Delta engine with >5:1 SNR and water-tolerant operation - eliminates need for external shielding or recalibration in wet environments. |
| SmartSense Auto-Tuning | Hardware-accelerated calibration - reduces firmware development time and ensures robust touch response across voltage/temperature drift. |
| Segment LCD Drive | Direct drive on all GPIO pins with 4-bit memory per pin in Deep Sleep - enables low-power display retention without external controller. |
| Programmable UDBs | Four universal digital blocks, each with 8 macrocells and 8-bit datapath - allows custom protocol engines or glue logic without FPGA cost or complexity. |
| Deep Sleep Power | 20 nA with GPIO wakeup - supports battery-powered devices requiring multi-year operation on coin cells. |
Applications
| Industrial HMI Panels | Automotive Body Controllers |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC, lighting, or access systems in factory environments. IC Role / Device Role / Timing Role: Main MCU executing CAPSENSE™ firmware, driving segmented LCD, and managing CAN bus communication with central gateway. Use Value: Single-chip integration reduces BOM count and PCB area while maintaining –40°C to +105°C operation in uncontrolled enclosures. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting via LIN/CAN. IC Role / Device Role / Timing Role: Real-time motor control using TCPWM kill signals and CAN message handling with hardware filtering. Use Value: Dual CAN interfaces enable concurrent communication with body domain controller and diagnostic tool without software arbitration. |
| Smart Home Sensors | Medical Patient Monitors |
Use Scenario: Battery-powered air quality or occupancy sensor with capacitive touch interface and BLE coexistence. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating analog inputs (temp/humidity), processing touch events, and waking BLE radio only on user interaction. Use Value: 20-nA Stop Mode extends battery life beyond 5 years; CSD immunity to condensation prevents false triggers in humid rooms. | Use Scenario: Portable vital sign monitor with ECG front-end, touch UI, and segment display for bedside use. IC Role / Device Role / Timing Role: Analog signal conditioning via programmable opamps, 12-bit ADC sampling at clinical-grade resolution, and LCD refresh in Deep Sleep. Use Value: On-chip opamps with ADC input buffering eliminate external signal chain components, reducing size and noise susceptibility. |
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 |
|---|---|---|---|
| CY8C4247LTI-M485 | Higher flash (256 kB) and SRAM (32 kB); same package and peripheral set. | Better suited for complex BLE stack integration or larger GUI firmware. | Select when firmware footprint exceeds 128 kB or additional RAM is needed for multi-threaded tasks. |
| STM32F072CBT6 | No integrated CAPSENSE™ or programmable analog; fixed-function peripherals only; 128 kB flash, 16 kB SRAM. | Requires external components for touch sensing and analog signal conditioning. | Choose when design prioritizes toolchain familiarity over analog flexibility and ultra-low-power wake capability. |
Compared with CY8C4246LTI-M445, the M485 offers headroom for future firmware expansion but no analog/digital reconfiguration advantage, while the STM32F072 lacks hardware-accelerated capacitive sensing and Deep Sleep opamp support-increasing BOM cost and power budget in touch-sensitive applications.
Availability
CY8C4246LTI-M445 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body controllers, smart home sensors, and portable medical monitors requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4246LTI-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 ICs, and secure microcontrollers, with global R&D and manufacturing infrastructure.
The PSoC™ 4200M product line targets programmable embedded controllers for mixed-signal applications where analog flexibility, low-power operation, and rapid prototyping are critical-especially in human-interface and automotive subsystems.
FAQ
Does CY8C4246LTI-M445 support USB connectivity?
No. This device does not include a USB PHY or controller. It relies on external USB-to-UART bridges or companion ICs for host communication. Its serial interfaces are limited to I²C, SPI, UART, and CAN as defined in the SCB and fixed-function peripheral blocks.
What development tools are required for PSoC™ Creator projects?
PSoC™ Creator IDE (discontinued but still supported for legacy PSoC 4 devices) is mandatory for schematic-based design entry, automatic analog/digital routing, and component-based API generation. Debug requires a KitProg2/3 or MiniProg3 programmer supporting SWD interface at up to 48 MHz.
Can the opamps operate independently during Deep Sleep mode?
Yes. All four opamps retain full functionality-including high-current drive, comparator mode, and ADC input buffering-while the CPU and most digital blocks are powered down. Each opamp can be individually enabled or configured via dedicated Deep Sleep registers.
Is SmartSense tuning compatible with custom PCB layouts?
Yes. SmartSense auto-tuning adapts to parasitic capacitance variations caused by trace length, overlay thickness, or grounding topology. It dynamically adjusts IDAC current and modulation frequency without requiring layout redesign or manual calibration tables.
CY8C4246LTI-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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
CY8C4246LTI-M445 FAQ
1.How can I place an order for CY8C4246LTI-M445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4246LTI-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 CY8C4246LTI-M445 reliable?
The price and inventory of CY8C4246LTI-M445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4246LTI-M445 is usually 5 days.
3.What payment methods are accepted for CY8C4246LTI-M445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4246LTI-M445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4246LTI-M445?
CY8C4246LTI-M445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4246LTI-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 CY8C4246LTI-M445?
For technical support, including CY8C4246LTI-M445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4246LTI-M445 requirements.
6.How does Aetrix verify that CY8C4246LTI-M445 is sourced from the original manufacturer or authorized distributors?
All CY8C4246LTI-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 CY8C4246LTI-M445 meets industry standards.
7.What is the process for return or replacement of CY8C4246LTI-M445?
All CY8C4246LTI-M445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4246LTI-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 CY8C4246LTI-M445 part is unused and in its original packaging.
Return procedure for CY8C4246LTI-M445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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