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Infineon Technologies CY8C3446AXA-099
- Part No.:
- CY8C3446AXA-099
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C3446AXA-099.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,907
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Product details
Overview
CY8C3446AXA-099 from Infineon Technologies (acquired Cypress Semiconductor) is an AEC-Q100 qualified automotive-grade PSoC® 3 programmable system-on-chip integrating an 8051 CPU core, up to 64 KB flash, 8 KB SRAM, 2 KB EEPROM, 24-channel DMA, full CAN 2.0b interface, USB 2.0 Full-Speed peripheral, and configurable analog/digital peripherals - all in a 100-pin TQFP package rated for –40 °C to +125 °C operation.
For engineers reviewing the CY8C3446AXA-099 datasheet, CY8C3446AXA-099 pinout, CY8C3446AXA-099 application, or CY8C3446AXA-099 equivalent, this device supports rapid mixed-signal system integration in automotive body control, sensor fusion, and infotainment subsystems where reconfigurable analog front-ends, deterministic real-time control, and functional safety readiness are required.
Technical Context
The CY8C3446AXA-099 implements a single-cycle 8051 microcontroller core with up to 50 MHz operation, supported by a 3–62 MHz internal main oscillator (IMO), 4–25 MHz crystal oscillator input, and PLL-based clock generation. Its digital subsystem centers on 24 Universal Digital Blocks (UDBs), each combining PLD logic and state machines to implement custom peripherals including timers, PWMs, CRC, LIN, and quadrature decoders.
Analog functionality includes a 12-bit delta-sigma ADC (192 ksps, 66 dB SINAD, ±1 LSB INL/DNL), four comparators (95 ns response), two opamps (25 mA drive), two SC/CT blocks configurable as PGA/TIA/mixer, and CapSense® support routed to any GPIO - all referenced to a 1.024 V ±0.1% internal voltage reference stable across –40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz; enables deterministic real-time control loops with <1 µs instruction latency. |
| Memory | 64 KB flash (100k write cycles, 20 yr retention), 8 KB SRAM, 2 KB EEPROM (1M cycles); supports field firmware updates and data logging without external storage. |
| Analog ADC | Configurable delta-sigma ADC: 8–12-bit resolution, 192 ksps max sample rate, 66 dB SINAD at 12-bit mode; suitable for precision thermocouple, pressure, and current sensing. |
| Digital Interfaces | Full CAN 2.0b (16 Rx/8 Tx buffers), USB 2.0 FS (12 Mbps, TID#40770053 certified), I²C multimaster, SPI, UART; enables direct connection to vehicle networks and host systems. |
| Operating Range | –40 °C to +125 °C ambient, 1.71–5.5 V supply; meets AEC-Q100 Grade 0 requirements for under-hood and powertrain applications. |
| Power Modes | 1 µA sleep mode (RTC + LVD active), 200 nA hibernate with RAM retention; enables always-on monitoring with ultra-low quiescent current. |
| I/O System | 62 GPIOs + 8 SIOs + 2 USBIOs; all GPIOs support analog routing, CapSense®, LCD drive (46×16), and configurable drive strength (25 mA sink on SIO). |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDD | Analog/Digital Power Supply | Separate 1.71–5.5 V domains enable noise-isolated analog signal conditioning while supporting wide-input automotive battery voltage ranges. |
| P0[0]–P7[7] | General-Purpose I/O | 62 fully routable GPIOs; each supports analog muxing, CapSense®, comparator inputs, DAC outputs, and LCD segment drive - no fixed-function pin constraints. |
| CAN_TX, CAN_RX | CAN Bus Interface | Dedicated differential pair supporting ISO 11898-2 compliant physical layer signaling; integrated transceiver not required for basic bus connectivity. |
| USB_DP, USB_DM | USB 2.0 Full-Speed PHY | On-die USB transceiver with internal termination; eliminates need for external USB PHY and reduces BOM count in telematics modules. |
| XRES | External Reset Input | Active-low asynchronous reset pin with Schmitt-trigger input; ensures reliable power-on and fault recovery in noisy automotive environments. |
| SWDCK, SWDIO | Serial Wire Debug Interface | 2-wire debug port supporting programming, breakpoints, and 4 KB instruction trace; enables in-system firmware update and diagnostics without JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable UDB Array (24 blocks) | Enables hardware-accelerated implementation of custom digital logic (e.g., PRS generators, CRC engines, LIN protocol stacks) without FPGA-level complexity or cost. |
| Delta-sigma ADC with Programmable Gain | Gain range ×0.25 to ×16 allows direct interfacing with mV-range sensors (e.g., strain gauges, thermopiles) without external amplifiers or gain-switching circuitry. |
| CapSense® on Any GPIO | Eliminates dedicated touch controller ICs; supports up to 62 self- or mutual-capacitance buttons/sliders with built-in noise immunity and auto-tuning algorithms. |
| Integrated USB 2.0 FS PHY | Reduces bill-of-materials by removing external USB transceivers; supports HID, CDC, and vendor-class devices directly from firmware via PSoC Creator™ component library. |
| AEC-Q100 Grade 0 Qualification | Validated for operation at +125 °C ambient and subjected to stress testing per automotive reliability standards - enabling use in engine control, transmission, and ADAS submodules. |
Applications
| Automotive Body Control Module | Smart Sensor Hub |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting using discrete switches, Hall effect sensors, and PWM-driven motors. IC Role / Device Role / Timing Role: Primary MCU executing real-time motor control, switch debouncing, LIN communication to slave nodes, and CapSense® for touch-sensitive controls. Use Value: Single-chip integration replaces multiple ASICs and discrete logic; configurable analog inputs eliminate external opamp stages for hall sensor conditioning. |
Use Scenario: Aggregation and preprocessing of temperature, pressure, humidity, and inertial sensor data in HVAC or chassis domain controllers. IC Role / Device Role / Timing Role: Signal acquisition hub performing synchronized multi-channel delta-sigma ADC sampling, digital filtering, and CAN message formatting before transmission. Use Value: 12-bit ADC with 66 dB SINAD and programmable gain enables direct connection to low-output MEMS sensors without external signal chain components. |
| Infotainment Front Panel | Electric Power Steering (EPS) Assist Monitor |
Use Scenario: Touch-enabled user interface for climate control, audio, and navigation displays in instrument clusters and center consoles. IC Role / Device Role / Timing Role: Dedicated CapSense® controller with LCD segment driver capability managing up to 46×16 segments and 62 capacitive buttons. Use Value: Eliminates separate touch controller and display driver ICs; GPIO flexibility allows shared pins between touch sensing and display multiplexing. |
Use Scenario: Real-time monitoring of torque sensor signals, motor current feedback, and EPS ECU health status for fail-safe reporting to vehicle gateway. IC Role / Device Role / Timing Role: Safety-monitoring co-processor acquiring analog torque sensor data via high-accuracy ADC and validating CAN messages from primary EPS ECU. Use Value: AEC-Q100 Grade 0 rating and 200 nA hibernate mode support always-on diagnostic readiness without compromising battery drain in parked vehicles. |
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 |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 160 MHz, 1 MB flash, CAN FD, no integrated CapSense® or analog muxing; requires external ADC/DAC for high-precision sensor interfaces. | Better suited for high-throughput CAN FD gateway functions but lacks on-chip analog configurability for direct sensor interfacing. | Select when CAN FD bandwidth and floating-point math performance outweigh need for integrated analog front-end flexibility. |
| Renesas RL78/F13 | 16-bit RL78 core, 32 MHz, 256 KB flash, 12-bit SAR ADC (1 Msps), no USB or CapSense®; lower power in deep sleep (300 nA) but limited analog channel count (18 channels). | Optimized for ultra-low-power body electronics with minimal analog signal paths; lacks USB and complex mixed-signal routing. | Select for cost-sensitive, low-complexity body control applications where USB/CapSense® are unnecessary and SAR ADC speed suffices. |
Compared with NXP S32K144 and Renesas RL78/F13, the CY8C3446AXA-099 uniquely combines automotive-grade reconfigurable analog routing, CapSense® integration, and USB 2.0 FS PHY in a single die - reducing system-level BOM count and enabling last-minute firmware-based feature changes without PCB revision.
Availability
CY8C3446AXA-099 is available at Aetrix Electronics and suitable for automotive body control modules, smart sensor hubs, infotainment front panels, and electric power steering assist monitors requiring stable component supply across extended temperature and long product lifecycles.
Supply support for CY8C3446AXA-099 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 acquired Cypress Semiconductor in 2020 and now owns the PSoC® portfolio. Infineon is a global semiconductor leader focused on power systems, automotive electronics, and security solutions.
The CY8C34 family belongs to Infineon's automotive-qualified PSoC® 3 platform, designed specifically for reconfigurable mixed-signal control in body electronics, chassis systems, and driver interface modules where analog signal fidelity, real-time determinism, and functional safety readiness are critical.
FAQ
Is CY8C3446AXA-099 pin-compatible with other CY8C34xx devices?
Yes - CY8C3446AXA-099 uses the 100-pin TQFP package common to CY8C3446L, CY8C3446P, and CY8C3446F variants. Pin assignments for power, reset, clocks, USB, CAN, and debug interfaces are identical across the family; only flash size, SRAM, and peripheral enablement differ in silicon configuration.
Does CY8C3446AXA-099 support CAN FD?
No - it implements CAN 2.0b only, with 16 receive and 8 transmit buffers. CAN FD capability is not present in the CY8C34 architecture; that feature appears in later PSoC 4 and Traveo™ families. For CAN FD applications, consider Infineon's TC3xx or AURIX™ families.
Can the internal 1.024 V reference be used for external circuits?
Yes - the 1.024 V ±0.1% reference is accessible on the VREF pin and can source up to 100 µA. It is specified over –40 °C to +85 °C and maintains accuracy independent of VDDA fluctuations, making it suitable for biasing external opamps or calibrating external ADCs.
What development tools are required to program CY8C3446AXA-099?
PSoC Creator™ IDE (v3.3 or later) is mandatory for schematic-based design and component configuration. Programming requires a MiniProg3 or KitProg debugger via SWD or JTAG; USB-based bootloader updates are supported through UART, I²C, SPI, or native USB HID/CDC interfaces after initial firmware load.
CY8C3446AXA-099 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 3 CY8C34xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART, USB
- Peripherals:
- CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 62
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3446AXA-099 FAQ
1.How can I place an order for CY8C3446AXA-099 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3446AXA-099 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 CY8C3446AXA-099 reliable?
The price and inventory of CY8C3446AXA-099 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3446AXA-099 is usually 5 days.
3.What payment methods are accepted for CY8C3446AXA-099?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3446AXA-099 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3446AXA-099?
CY8C3446AXA-099 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3446AXA-099 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 CY8C3446AXA-099?
For technical support, including CY8C3446AXA-099 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3446AXA-099 requirements.
6.How does Aetrix verify that CY8C3446AXA-099 is sourced from the original manufacturer or authorized distributors?
All CY8C3446AXA-099 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 CY8C3446AXA-099 meets industry standards.
7.What is the process for return or replacement of CY8C3446AXA-099?
All CY8C3446AXA-099 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3446AXA-099, 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 CY8C3446AXA-099 part is unused and in its original packaging.
Return procedure for CY8C3446AXA-099:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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