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Infineon Technologies CY8C4246AZQ-M443
- Part No.:
- CY8C4246AZQ-M443
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4246AZQ-M443.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,232
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Product details
Overview
CY8C4246AZQ-M443 from Infineon is a 32-bit Arm® Cortex®-M0 microcontroller in the PSoC™ 4200L family, integrating programmable analog (4 opamps, 2 comparators, 12-bit SAR ADC), digital (8 UDBs, 4 SCBs, 2 CAN blocks), and capacitive sensing (CSD) subsystems. It operates from 1.71–5.5 V, delivers 48 MHz CPU performance, and supports Deep Sleep mode at 20 nA. Used in industrial HMI touch panels with integrated LCD drive and CAN bus communication.
For engineers reviewing the CY8C4246AZQ-M443 datasheet, CY8C4246AZQ-M443 pinout, CY8C4246AZQ-M443 application, or CY8C4246AZQ-M443 equivalent, key selection criteria include its dual CAN interface, on-chip CSD engine for water-tolerant touch, 94 GPIO with configurable drive strength, and USB Full-Speed device capability with Battery Charger Detect.
Technical Context
The device implements an Arm® Cortex®-M0 core with single-cycle multiply and 48 MHz max clock, backed by up to 256 kB flash and 32 kB SRAM. Its programmable analog subsystem includes four opamps supporting Comparator mode and ADC input buffering, plus two low-power comparators active in Deep Sleep.
Digital flexibility is delivered via eight Universal Digital Blocks (UDBs), each with 8 macrocells and an 8-bit datapath, and four reconfigurable Serial Communication Blocks (SCBs) supporting I²C/SPI/UART. Two independent CAN 2.0B controllers support industrial networking with bit rates up to 1 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0, 48 MHz max - enables real-time deterministic control with minimal latency in motor or sensor interfaces. |
| Flash / SRAM | 256 kB flash / 32 kB SRAM - sufficient for complex firmware with bootloader, secure updates, and CAPSENSE™ tuning tables. |
| Analog Peripherals | 4 opamps + 2 comparators + 12-bit SAR ADC - supports simultaneous signal conditioning, threshold detection, and precision measurement without external components. |
| Digital Peripherals | 8 UDBs + 4 SCBs + 2 CAN blocks - allows custom logic implementation, multi-protocol serial comms, and dual-network automotive/industrial connectivity. |
| Power Modes | 20 nA Stop Mode, Deep Sleep with GPIO wakeup - enables battery-powered edge nodes with years of operation on coin-cell power. |
| GPIO Count | Up to 94 programmable pins - supports high-pin-count HMI designs with mixed analog/digital/CAPSENSE™/LCD functions on shared pins. |
| Capacitive Sensing | Two CSD blocks with >5:1 SNR and SmartSense™ auto-tuning - delivers robust touch response under wet conditions and varying environmental noise. |
Pinout & Package
This device is packaged in a 124-ball VFBGA (5 mm × 5 mm, 0.4 mm pitch), optimized for space-constrained industrial and automotive control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Supply | Independent 1.71–5.5 V domains per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU core with 5 V sensor inputs). |
| P0[0]–P15[7] | Programmable GPIO | 94 total pins support CAPSENSE™, analog input/output, digital logic, or LCD segment/common - all configurable per-pin drive mode and slew rate. |
| USB_DP / USB_DM | USB 2.0 Full-Speed Interface | Differential pair with integrated transceiver and Battery Charger Detect - eliminates need for external USB PHY in embedded host-peripheral applications. |
| CAN0_TX / CAN0_RX / CAN1_TX / CAN1_RX | Dual CAN Physical Layer | Four dedicated pins for two independent CAN 2.0B controllers - supports redundant networks or gateway functionality in vehicle ECUs. |
| XRES | External Reset Input | Active-low asynchronous reset with internal pull-up - ensures reliable power-on and fault recovery without external RC network. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration adjusts baseline, sensitivity, and noise thresholds dynamically - reduces firmware overhead and improves field reliability across temperature/humidity shifts. |
| Deep Sleep Analog Operation | Opamps and comparators remain functional at 20 nA system current - enables always-on touch wake-up or low-power sensor monitoring without CPU intervention. |
| Reconfigurable SCBs | Four serial blocks can be independently assigned as I²C master/slave, SPI controller/peripheral, or UART - simplifies BOM consolidation and design reuse across product variants. |
| Programmable UDB Logic | Eight universal digital blocks implement custom state machines or glue logic in hardware - offloads timing-critical tasks from CPU and avoids software interrupt latency. |
| Segment LCD Drive | Up to 64 segment/common outputs driven directly from GPIOs with 4-bit memory retention in Deep Sleep - supports persistent display in ultra-low-power status indicators. |
Applications
| Industrial HMI Touch Panel | Automotive Body Control Module |
|---|---|
Use Scenario: A sealed front-panel control interface for HVAC or lighting systems exposed to moisture and ESD. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, driving segmented LCD, and managing CAN bus diagnostics. Use Value: Dual CSD blocks deliver >5:1 SNR and water tolerance; Deep Sleep operation extends battery life in wireless versions. | Use Scenario: Centralized door/window/mirror control unit communicating over two CAN buses (body and comfort networks). IC Role / Device Role / Timing Role: CAN gateway and local actuator controller with integrated opamp-based window current sensing. Use Value: Two independent CAN controllers eliminate external transceivers; programmable analog measures motor stall current without external amplifiers. |
| Smart Energy Meter Interface | Medical Patient Monitor Frontend |
Use Scenario: Tamper-resistant meter with capacitive buttons, LCD display, and isolated RS-485 communication via SCB. IC Role / Device Role / Timing Role: Secure data acquisition and human interface controller with cryptographic-ready flash and tamper-detect GPIOs. Use Value: 256 kB flash hosts secure bootloader and firmware update stack; 94 GPIOs route isolated comms, touch, and LCD with no external logic. | Use Scenario: Portable monitor with wet-hand-capable touch controls, analog sensor front-end (ECG/SpO₂), and USB data export. IC Role / Device Role / Timing Role: Signal-conditioning MCU with SAR ADC, opamp-based instrumentation amplifiers, and USB Full-Speed interface. Use Value: Integrated 12-bit SAR ADC and opamps reduce component count; USB Battery Charger Detect enables direct charging from clinical USB hubs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247LQI-BL483 | Same PSoC™ 4200L architecture but in 88-pin QFN; lacks USB PHY and has only one CAN block. | Suitable for cost-sensitive CAN-only gateways without USB connectivity or LCD drive. | Select when USB and dual CAN are not required - lower package cost and smaller footprint. |
| STM32G474RET6 | Arm® Cortex®-M4F core, 170 MHz, no integrated CAPSENSE™ or programmable analog/digital fabric. | Better for math-intensive control loops; requires external touch controller and analog signal chain. | Choose when floating-point performance outweighs system integration benefits - adds BOM complexity but gains compute headroom. |
Compared with CY8C4246AZQ-M443, CY8C4247LQI-BL483 trades USB and second CAN for compact packaging, while STM32G474RET6 sacrifices hardware reconfigurability for higher CPU throughput - selection hinges on whether analog/digital programmability or raw processing dominates the system architecture.
Availability
CY8C4246AZQ-M443 is available at Aetrix Electronics and suitable for industrial HMI, automotive body control, and smart energy metering applications requiring stable component supply, long-term lifecycle assurance, and qualified traceable sourcing.
Supply support for CY8C4246AZQ-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.
CY8C4246AZQ-M443 belongs to the PSoC™ 4200L product line, designed specifically for highly integrated, low-power embedded systems requiring mixed-signal programmability, robust capacitive sensing, and industrial-grade communication interfaces.
FAQ
Does CY8C4246AZQ-M443 support USB device enumeration without external components?
Yes. It integrates a full-speed USB 2.0 device PHY with Battery Charger Detect (BCD) circuitry and on-chip termination resistors. No external transceiver, pull-up resistors, or BCD IC is required - enabling certified USB compliance with minimal external parts count and PCB area.
What is the maximum operating temperature range for this device?
CY8C4246AZQ-M443 is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 5.2.1 of the official Infineon datasheet (001-91686 Rev. *L), with validated performance across voltage and frequency corners within this range.
Can the opamps operate during Deep Sleep mode?
Yes. All four opamps and both comparators retain full functionality in Deep Sleep mode with typical current draw of 1.2 µA per opamp. They can drive external loads, buffer ADC inputs, or generate comparator interrupts - enabling continuous analog monitoring without waking the CPU.
How many pins support CAPSENSE™ functionality?
Up to 94 GPIO pins support CAPSENSE™, implemented through two dedicated Capacitive Sigma-Delta (CSD) blocks. Each CSD block drives multiple sensors simultaneously, with hardware-accelerated scanning and SmartSense™ auto-calibration - no firmware polling or manual tuning required.
CY8C4246AZQ-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, CapSense, DMA, 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 SAR; D/A 2x7b, 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4246AZQ-M443 FAQ
1.How can I place an order for CY8C4246AZQ-M443 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4246AZQ-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 CY8C4246AZQ-M443 reliable?
The price and inventory of CY8C4246AZQ-M443 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4246AZQ-M443 is usually 5 days.
3.What payment methods are accepted for CY8C4246AZQ-M443?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4246AZQ-M443 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4246AZQ-M443?
CY8C4246AZQ-M443 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4246AZQ-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 CY8C4246AZQ-M443?
For technical support, including CY8C4246AZQ-M443 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4246AZQ-M443 requirements.
6.How does Aetrix verify that CY8C4246AZQ-M443 is sourced from the original manufacturer or authorized distributors?
All CY8C4246AZQ-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 CY8C4246AZQ-M443 meets industry standards.
7.What is the process for return or replacement of CY8C4246AZQ-M443?
All CY8C4246AZQ-M443 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4246AZQ-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 CY8C4246AZQ-M443 part is unused and in its original packaging.
Return procedure for CY8C4246AZQ-M443:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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