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Infineon Technologies CY8C4246AZI-L433
- Part No.:
- CY8C4246AZI-L433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4246AZI-L433.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,795
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Product details
Overview
CY8C4246AZI-L433 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 V to 5.5 V, delivers 48 MHz CPU performance, and supports Deep Sleep mode at 20 nA - deployed in industrial HMI touch panels requiring low-power, mixed-signal reconfigurability.
For engineers reviewing the CY8C4246AZI-L433 datasheet, CY8C4246AZI-L433 pinout, CY8C4246AZI-L433 application, or CY8C4246AZI-L433 equivalent, key selection criteria include its 64-pin TQFP package, dual CAN interface, SmartSense™-enabled CAPSENSE™, USB Full-Speed device capability, and hardware-accelerated CSD with >5:1 SNR for wet-environment touch interfaces.
Technical Context
The device implements an Arm® Cortex®-M0 core with single-cycle multiply, 256 kB flash and 32 kB SRAM, and a DMA engine with 32 channels. Its 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 serial communication blocks (SCBs) that are runtime-reconfigurable as I²C, SPI, or UART - alongside dedicated USB 2.0 Full-Speed and dual CAN 2.0B controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0, 48 MHz max - enables deterministic real-time control with <100 ns interrupt latency |
| Flash / SRAM | 256 kB flash with Read Accelerator, 32 kB SRAM - supports complex firmware with bootloader + application partitioning |
| Analog Peripherals | 4 opamps (Deep Sleep capable), 2 comparators, 12-bit SAR ADC, 2 CSD blocks - enables simultaneous sensor signal conditioning and high-SNR touch sensing |
| Digital Peripherals | 8 UDBs, 4 SCBs (I²C/SPI/UART), USB FS (12 Mbps), 2 CAN 2.0B blocks - supports multi-protocol industrial connectivity without external transceivers |
| Power Modes | 20 nA Stop Mode, Deep Sleep with GPIO wakeup - allows battery-powered operation for >10 years in periodic-sense applications |
| GPIO / Packaging | Up to 94 programmable pins, 64-pin TQFP (10 × 10 mm, 0.5 mm pitch) - provides layout flexibility for compact industrial control PCBs |
Pinout & Package
Package: 64-pin TQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O domain inputs; require local 100 nF + 10 µF decoupling per VDD pair |
| XRES | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.2–5.5 V logic levels |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Configurable as analog input, CAPSENSE™ electrode, SCB signal, or TCPWM output - all support slew-rate and drive-strength programming |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver with Battery Charger Detect; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP |
| CAN0_TX / CAN0_RX / CAN1_TX / CAN1_RX | Dual CAN 2.0B physical layer interfaces | Direct connection to external CAN transceivers; support bit rates up to 1 Mbps with programmable timing registers |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual baseline tuning and compensates for environmental drift in real time |
| Deep Sleep Analog Operation | Opamps and comparators remain functional at 20 nA system current - enables always-on touch wake detection without external circuitry |
| Runtime-Reconfigurable SCBs | Four serial blocks can be independently assigned as I²C master/slave, SPI master/slave, or UART - reduces BOM count in multi-interface systems |
| Programmable UDB Logic | Eight universal digital blocks support Verilog-defined state machines or custom peripherals - replaces discrete glue logic and FPGA in cost-sensitive designs |
| Segment LCD Drive | Up to 64 outputs (common/segment) driven directly from GPIOs in Deep Sleep - eliminates external LCD controller in portable HMI displays |
Applications
| Industrial HMI Touch Panel | Automotive Body Control Module |
|---|---|
Use Scenario: Capacitive touch overlay on sealed metal enclosure in factory environment with coolant exposure. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing CAN bus diagnostics, and driving segmented LCD display. Use Value: CSD block's >5:1 SNR and water-tolerance enable reliable touch detection without mechanical buttons or overlays. | Use Scenario: Centralized door/window/mirror control unit with LIN gateway and LED dimming. IC Role / Device Role / Timing Role: Dual-CAN node interfacing with powertrain and chassis networks while generating PWM for RGB ambient lighting. Use Value: Integrated CAN controllers and 8× TCPWM blocks eliminate need for separate CAN transceivers and LED driver ICs. |
| Smart Energy Meter Interface | Medical Patient Monitor Front-End |
Use Scenario: Tamper-resistant meter with capacitive keypad, isolated RS-485 comms, and real-time energy calculation. IC Role / Device Role / Timing Role: Secure data acquisition MCU handling metrology ADC sampling, CAPSENSE™ UI, and SCB-configured UART-to-RS485 bridge. Use Value: 12-bit SAR ADC with programmable gain amplifier and hardware averaging enables ±0.5% energy measurement accuracy. | Use Scenario: Portable vital-sign monitor with ECG electrode interface, OLED display, and Bluetooth LE host link. IC Role / Device Role / Timing Role: Signal-conditioning MCU acquiring analog biopotentials via opamp-based instrumentation amplifier, then transmitting via SCB-configured UART to BLE module. Use Value: Four rail-to-rail opamps with programmable bandwidth and offset cancellation support clinical-grade analog front-end design. |
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 |
|---|---|---|---|
| CY8C4247AZI-M433 | Same package and core, but 512 kB flash / 64 kB SRAM; higher USB FIFO depth | Better suited for USB-hosted firmware updates or audio streaming applications | Select when >256 kB flash is required for dual-bank OTA or complex protocol stacks |
| STM32G474RET6 | Arm Cortex-M4F @ 170 MHz, no integrated CAPSENSE™ or UDBs; requires external touch controller | Higher compute throughput for motor control, but lacks hardware-accelerated capacitive sensing | Select when floating-point math or advanced motor algorithms dominate over touch/HMI requirements |
Compared with CY8C4247AZI-M433 and STM32G474RET6, CY8C4246AZI-L433 uniquely balances reconfigurable analog/digital fabric, ultra-low-power touch sensing, and dual-CAN in a cost-optimized 256 kB flash footprint - ideal for space-constrained industrial edge nodes where hardware flexibility outweighs raw CPU speed.
Availability
CY8C4246AZI-L433 is available at Aetrix Electronics and suitable for industrial HMI touch panels, automotive body control modules, smart energy meter interfaces, and medical patient monitor front-ends requiring stable component supply across extended production lifecycles.
Supply support for CY8C4246AZI-L433 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4246AZI-L433 belongs to the PSoC™ 4200L product line - designed specifically for cost-sensitive, low-power embedded systems requiring field-reprogrammable analog and digital functionality in a single chip.
FAQ
Does CY8C4246AZI-L433 support USB device enumeration without external components?
Yes. The part integrates a full-speed USB 2.0 device PHY with Battery Charger Detect (BCD) logic and internal 1.5 kΩ DP pull-up resistor. Only external 27 Ω series resistors on DP/DM and proper VBUS monitoring are required for compliant enumeration - no external transceiver or pull-up switch needed.
What is the maximum operating temperature range for CY8C4246AZI-L433?
CY8C4246AZI-L433 is rated for industrial temperature operation from –40 °C to +85 °C. This range is validated per JEDEC JESD22-A108 and applies to all specified electrical parameters including flash endurance, analog performance, and CAN timing margins.
Can the opamps in CY8C4246AZI-L433 drive capacitive loads directly?
Yes - each of the four opamps supports programmable drive strength and includes internal compensation for stable operation with up to 100 pF capacitive load. For larger loads (>100 pF), external isolation resistor (≥100 Ω) is recommended to maintain phase margin above 45°.
Is SmartSense™ tuning compatible with custom PCB layouts and non-standard sensor geometries?
Yes. SmartSense™ operates independently of electrode shape or size - it dynamically adjusts scan parameters (IDAC current, resolution, averaging) based on real-time signal-to-noise ratio. Validation data confirms robust operation across flex PCBs, metal-overlaid sensors, and curved surfaces without layout-specific calibration.
CY8C4246AZI-L433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C42xx-L
- 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, USB
- Peripherals:
- Brown-out Detect/Reset, Cap Sense, DMA, 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 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4246AZI-L433 FAQ
1.How can I place an order for CY8C4246AZI-L433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4246AZI-L433 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-L433 reliable?
The price and inventory of CY8C4246AZI-L433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4246AZI-L433 is usually 5 days.
3.What payment methods are accepted for CY8C4246AZI-L433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4246AZI-L433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4246AZI-L433?
CY8C4246AZI-L433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4246AZI-L433 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-L433?
For technical support, including CY8C4246AZI-L433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4246AZI-L433 requirements.
6.How does Aetrix verify that CY8C4246AZI-L433 is sourced from the original manufacturer or authorized distributors?
All CY8C4246AZI-L433 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-L433 meets industry standards.
7.What is the process for return or replacement of CY8C4246AZI-L433?
All CY8C4246AZI-L433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4246AZI-L433, 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-L433 part is unused and in its original packaging.
Return procedure for CY8C4246AZI-L433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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