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Infineon Technologies CY8C4246AZI-M443
- Part No.:
- CY8C4246AZI-M443
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4246AZI-M443.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,689
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Product details
Overview
CY8C4246AZI-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 supports capacitive sensing (CSD), LCD segment drive, CAN communication, and operates from 1.71–5.5 V across –40°C to +105°C for industrial control and human-interface applications.
For engineers reviewing the CY8C4246AZI-M443 datasheet, CY8C4246AZI-M443 pinout, CY8C4246AZI-M443 application, or CY8C4246AZI-M443 equivalent, key selection criteria include Deep Sleep current (20 nA), SAR ADC performance (12-bit, 1-Msps), TCPWM flexibility (8× 16-bit blocks), and CAPSENSE™ water tolerance with SmartSense auto-tuning.
Technical Context
The device implements a tightly coupled MCU subsystem with DMA support and dual-clock domains (IMO/ILO) enabling low-power operation with sub-millisecond wake-up from Deep Sleep. Its analog subsystem includes four opamps with comparator/ADC buffer modes and two low-power comparators - all functional in Deep Sleep.
Digital programmability is delivered via four Universal Digital Blocks (UDBs), each with 8 macrocells and an 8-bit data path, plus eight TCPWM blocks supporting center-aligned PWM and comparator-triggered kill signals for motor control safety logic.
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. |
| Memory | 128 kB flash (with Read Accelerator) + 16 kB SRAM - supports complex firmware with fast code execution and data buffering. |
| ADC | 12-bit SAR ADC @ 1-Msps - delivers high-resolution sensor acquisition for precision analog front-end design. |
| Capacitive Sensing | Infineon CSD engine with >5:1 SNR and water tolerance - enables robust touch interfaces in humid or wet environments. |
| Low-Power Modes | 20-nA Stop Mode with GPIO wakeup; Deep Sleep with opamp/comparator active - extends battery life while retaining analog monitoring. |
| Communication | 4× SCBs (I²C/SPI/UART configurable) + 2× CAN controllers - supports mixed-protocol industrial networking and automotive diagnostics. |
| PWM & Timing | 8× 16-bit TCPWM blocks with center-aligned, edge-aligned, and pseudo-random modes - suitable for motor phase control and LED dimming. |
Pinout & Package
This device is housed in a 44-pin TQFP package with 38 GPIOs, including dedicated CAPSENSE™ and LCD segment/common pins. All GPIOs support programmable drive strength, slew rate, and analog/digital reconfiguration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O banks. |
| VSS | Ground reference | Common return for all internal circuits and external signal references. |
| XRES | External reset input | Active-low asynchronous reset; supports external watchdog or manual recovery. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug for programming and real-time trace without dedicated JTAG pins. |
| P0[0]–P0[7] | Programmable GPIO bank | Support CAPSENSE™, analog input/output, LCD segment drive, or digital logic per configuration. |
| P1[0]–P1[7] | Programmable GPIO bank | Includes CAN TX/RX capability on select pins; configurable for high-current LCD common drive. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Subsystem | Four opamps with ADC input buffering, comparator mode, and high-current drive - eliminates need for external signal conditioning in sensor nodes. |
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration - reduces firmware development time and improves field reliability under environmental drift. |
| Segment LCD Direct Drive | Up to 4-bit memory per pin in Deep Sleep - enables ultra-low-power display retention without external controller. |
| Programmable Digital Logic | Four UDBs with Verilog support - allows custom state machines and glue logic without FPGA or external CPLD. |
| Industrial Temp Range | –40°C to +105°C operation - qualified for under-hood automotive, factory automation, and outdoor IoT deployments. |
Applications
| Industrial HMI Panel | Automotive Cabin Control |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC, lighting, and window functions in harsh temperature environments. IC Role / Device Role / Timing Role: Primary MCU handling CAPSENSE™ button detection, LCD segment refresh, and CAN message routing to body control module. Use Value: Single-chip integration reduces BOM count and PCB area; Deep Sleep mode maintains touch readiness at <20 nA during vehicle sleep cycles. |
Use Scenario: Driver-facing dashboard controls with water-resistant touch response near beverage holders or windows. IC Role / Device Role / Timing Role: Capacitive sensing controller with SmartSense compensation for condensation and temperature-induced baseline drift. Use Value: >5:1 SNR ensures false-touch immunity even with moisture film; CSD hardware offloads CPU during continuous sensing. |
| Smart Appliance Interface | Programmable Power Tool Controller |
Use Scenario: Wash cycle selector and status display on washing machines exposed to steam and vibration. IC Role / Device Role / Timing Role: System-on-chip managing touch UI, 4-digit LCD, motor timing via TCPWM, and fault reporting over UART. Use Value: Integrated opamps condition motor current sense signals; 12-bit ADC resolves torque feedback with ±0.5% linearity. |
Use Scenario: Cordless drill with variable speed trigger, battery voltage monitoring, and thermal shutdown. IC Role / Device Role / Timing Role: Real-time motor control unit using comparator-triggered TCPWM kill signals for immediate overcurrent cutoff. Use Value: Hardware-based kill path achieves <100 ns response - meets IEC 62040-1 functional safety requirements for power tools. |
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 |
|---|---|---|---|
| CY8C4247LQI-BL483 | Same PSoC™ 4200M family but with Bluetooth LE radio integrated; larger 68-pin QFN package; 256 kB flash. | Requires wireless connectivity and higher memory; not drop-in due to RF layout and antenna requirements. | Select when BLE mesh node functionality is mandatory and board space permits larger footprint. |
| STM32G071KBT6 | Arm Cortex-M0+ core @ 64 MHz; no built-in CAPSENSE™ or programmable analog; relies on external components for touch/LCD. | Suitable for cost-sensitive designs where analog reconfigurability is unnecessary and external ICs are acceptable. | Choose if standard peripherals suffice and BOM simplification via analog integration is not required. |
Compared with CY8C4246AZI-M443, CY8C4247LQI-BL483 adds wireless capability at the cost of increased complexity and RF validation effort, while STM32G071KBT6 offers higher CPU clock and lower unit cost but requires discrete analog circuitry for touch and display functions.
Availability
CY8C4246AZI-M443 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive cabin controls, and smart appliance interfaces requiring stable component supply, extended temperature qualification, and long-term lifecycle support.
Supply support for CY8C4246AZI-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 MCUs, and secure connectivity solutions, with global manufacturing and quality certifications including ISO/TS 16949 and ISO 9001.
The PSoC™ 4200M product line targets programmable embedded controllers for human-machine interfaces and industrial automation, emphasizing analog-digital co-design, low-power operation, and field-reconfigurable functionality without hardware redesign.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0 core in CY8C4246AZI-M443?
The CY8C4246AZI-M443 features an Arm® Cortex®-M0 CPU rated for up to 48 MHz operation. This frequency is supported across the full industrial temperature range (–40°C to +105°C) and supply voltage range (1.71–5.5 V), with internal clock sources (IMO and ILO) providing stable timing without external crystals in many configurations.
Does CY8C4246AZI-M443 support hardware-accelerated capacitive sensing?
Yes - it integrates Infineon's Capacitive Sigma-Delta (CSD) sensing engine with hardware-based SmartSense auto-tuning. This enables automatic baseline recalibration, noise rejection, and water-tolerant operation without CPU intervention, delivering >5:1 signal-to-noise ratio in real-world touch applications.
Can the GPIO pins be used simultaneously for CAPSENSE™, LCD drive, and analog functions?
Yes - all 38 GPIOs are fully reconfigurable per pin. A single pin can be assigned as CAPSENSE™ sensor, LCD segment driver, or analog input/output in different firmware states. Configuration is managed through PSoC™ Creator or ModusToolbox™, with hardware routing matrices enabling dynamic function switching at runtime.
What debug interface does CY8C4246AZI-M443 use, and is external hardware required?
CY8C4246AZI-M443 uses a two-pin Serial Wire Debug (SWD) interface (SWDCLK and SWDIO). No external debugger chip is required - standard CMSIS-DAP or Segger J-Link probes connect directly. The interface supports full flash programming, real-time variable inspection, and breakpoint debugging without consuming GPIO resources.
CY8C4246AZI-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:
- 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:
CY8C4246AZI-M443 FAQ
1.How can I place an order for CY8C4246AZI-M443 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4246AZI-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 CY8C4246AZI-M443 reliable?
The price and inventory of CY8C4246AZI-M443 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4246AZI-M443 is usually 5 days.
3.What payment methods are accepted for CY8C4246AZI-M443?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4246AZI-M443 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4246AZI-M443?
CY8C4246AZI-M443 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4246AZI-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 CY8C4246AZI-M443?
For technical support, including CY8C4246AZI-M443 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4246AZI-M443 requirements.
6.How does Aetrix verify that CY8C4246AZI-M443 is sourced from the original manufacturer or authorized distributors?
All CY8C4246AZI-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 CY8C4246AZI-M443 meets industry standards.
7.What is the process for return or replacement of CY8C4246AZI-M443?
All CY8C4246AZI-M443 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4246AZI-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 CY8C4246AZI-M443 part is unused and in its original packaging.
Return procedure for CY8C4246AZI-M443:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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