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Infineon Technologies CY8C3446PVA-091
- Part No.:
- CY8C3446PVA-091
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C3446PVA-091.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,353
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Product details
Overview
CY8C3446PVA-091 from Infineon Technologies (acquired Cypress Semiconductor) is an AEC-Q100 qualified automotive-grade PSoC® 3 programmable system-on-chip integrating an 8051 CPU core, 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 in a 100-pin TQFP package. It supports thermocouple-to-ultrasonic signal acquisition, real-time motor control, and multi-sensor automotive body electronics.
For engineers reviewing the CY8C3446PVA-091 datasheet, CY8C3446PVA-091 pinout, CY8C3446PVA-091 application, or CY8C3446PVA-091 equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification (–40 °C to +105 °C), integrated CAN+USB dual-interface capability, 12-bit delta-sigma ADC with 192 ksps sampling and 66 dB SINAD, and UDB-based reconfigurable digital logic for late-stage firmware-driven hardware adaptation.
Technical Context
The CY8C3446PVA-091 implements a single-cycle 8051 CPU core operating up to 50 MHz with multiply/divide instructions, 512-byte flash cache, and ECC-protected flash configuration storage. Its digital subsystem centers on 24 universal digital blocks (UDBs) supporting programmable logic, timers, PWMs, CRC, PRS, LIN, and quadrature decoding via DSI routing.
Analog functionality includes a 1.024 V ±0.1% internal reference, 12-bit delta-sigma ADC (192 ksps, ±1 LSB INL/DNL, 66 dB SINAD), four comparators (95 ns response), two opamps (25 mA drive), and two multifunction SC/CT blocks configurable as PGA, TIA, mixer, or sample-and-hold - all routable to any of 62 GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running at DC–50 MHz; enables deterministic real-time control loops without pipeline stalls. |
| Memory | 64 KB flash (100k write cycles, 20-yr retention), 8 KB SRAM, 2 KB EEPROM (1M cycles); supports secure firmware updates and parameter logging. |
| ADC Performance | 12-bit delta-sigma ADC: 192 ksps max sample rate, 66 dB SINAD, ±1 LSB INL/DNL; suitable for high-fidelity sensor signal acquisition. |
| CAN Interface | Full CAN 2.0b compliant with 16 Rx/8 Tx buffers; meets ISO 11898-1 for automotive network node implementation. |
| Operating Temp | –40 °C to +105 °C (AEC-Q100 Grade 2); validated for under-hood and body-control module environments. |
| Package | 100-pin TQFP (14 × 14 mm, 0.5 mm pitch); supports automated optical inspection and thermal management in compact ECUs. |
| I/O Flexibility | 62 GPIOs with full analog/digital routing, CapSense® support, LCD direct drive (46×16), and configurable pull-up/pull-down/sink (25 mA 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 |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Domains | Four independent 1.2–5.5 V I/O voltage domains enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor inputs). |
| P0[0]–P7[7] | General-Purpose I/O | All 62 GPIOs support analog input/output, CapSense®, LCD segment/common, and interrupt generation with maskable IRQ per pin. |
| CAN_TX / CAN_RX | CAN Physical Layer Interface | Dedicated differential pair routed to internal CAN controller; requires external CAN transceiver for bus connection. |
| USBDP / USBDM | USB 2.0 Full-Speed PHY | Integrated USB transceiver supports 12 Mbps operation; no external PHY required for device-mode applications. |
| XRES | External Reset Input | Active-low asynchronous reset pin; debounced internally and compatible with automotive watchdog timer outputs. |
| XTAL_IN / XTAL_OUT | Crystal Oscillator Interface | Supports 4–25 MHz crystals for precise clocking; used for CAN timing accuracy and RTC calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable UDB Array | 24 universal digital blocks enable hardware-level customization of timers, PWMs, CRC, LIN, and PRS without gate-level HDL - accelerates prototyping and design iteration. |
| Delta-Sigma ADC with Programmable Gain | Configurable gain stage (×0.25 to ×16) and resolution (8–12 bit) allows single-chip support for mV-range thermocouples and V-range battery monitoring. |
| Integrated CAN + USB Dual Interface | On-die CAN 2.0b and USB 2.0 FS controllers eliminate external protocol bridges - reduces BOM count and PCB area in diagnostic and gateway modules. |
| AEC-Q100 Qualified Analog Subsystem | 1.024 V ±0.1% reference and opamps specified over –40 °C to +105 °C ensure stable sensor signal conditioning across automotive temperature extremes. |
| CapSense® on Any GPIO | Self-capacitance and mutual-capacitance touch sensing supported on all 62 GPIOs without dedicated pins - enables flexible HMI layout in space-constrained dashboards. |
Applications
| Body Control Module (BCM) | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifts in modern vehicles. IC Role / Device Role / Timing Role: Main microcontroller executing real-time control logic, managing CAN communication with other ECUs, and acquiring analog signals from ambient light and rain sensors. Use Value: Integrated 12-bit ADC and CAN reduce external component count by 3–5 ICs; UDB-based PWM generation eliminates need for discrete motor drivers in small actuator control. | Use Scenario: Handheld OBD-II scanner performing live data streaming, ECU reprogramming, and fault code reading. IC Role / Device Role / Timing Role: USB host interface bridge and CAN protocol engine - translates PC USB commands into CAN frames and routes responses back via USB. Use Value: On-chip USB 2.0 FS + CAN 2.0b eliminates external transceivers and PHYs; 64 KB flash stores multiple vehicle-specific diagnostic firmware images. |
| Electric Power Steering (EPS) Sensor Hub | Advanced HVAC Control Unit |
Use Scenario: Aggregation and preprocessing of torque, position, and motor current signals before transmission to main EPS controller. IC Role / Device Role / Timing Role: Signal acquisition node with synchronized multi-channel ADC sampling and CAN message formatting for time-critical steering feedback. Use Value: 192 ksps ADC sampling and 95 ns comparator response enable sub-microsecond torque transient detection; ECC flash ensures firmware integrity during over-the-air updates. | Use Scenario: Climate control unit managing blower speed, blend door actuation, and cabin air quality sensors. IC Role / Device Role / Timing Role: Mixed-signal controller handling PWM fan control, thermistor-based temperature measurement, CO₂ sensor I²C interface, and touch-sensitive UI via CapSense®. Use Value: Single-chip integration of 62 GPIOs, CapSense®, 12-bit ADC, and 8-bit DACs replaces discrete analog front-end and touch controller - cuts BOM cost by ~$1.20/unit at volume. |
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 |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 1 MB flash, 12-bit SAR ADC (2 Msps), CAN FD support; no integrated USB or CapSense® | Better for high-speed motor control requiring floating-point math; lacks on-chip touch and USB device capability | Select when CAN FD bandwidth > 1 Mbps is required or when existing ARM toolchain investment exists |
| Renesas RL78/F14 | RL78 core, 512 KB flash, 10-bit SAR ADC (1.25 Msps), CAN 2.0b only; no UDB-like reconfigurable logic or CapSense® | Lower power in sleep modes (300 nA), suited for battery-backed modules; limited analog flexibility | Select for ultra-low-power always-on monitoring where reconfigurability is secondary to energy efficiency |
Compared with S32K144 and RL78/F14, CY8C3446PVA-091 uniquely combines CAN+USB dual connectivity, field-reconfigurable digital logic (UDB), and CapSense® in a single AEC-Q100 Grade 2 package - enabling consolidated HMI+networking+sensor processing in space- and cost-constrained automotive nodes.
Availability
CY8C3446PVA-091 is available at Aetrix Electronics and suitable for automotive body control modules, diagnostic tools, electric power steering sensor hubs, and advanced HVAC control units requiring stable component supply and long-term lifecycle support.
Supply support for CY8C3446PVA-091 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 Automotive Family belongs to Infineon's PSoC® 3 platform, designed specifically for AEC-Q100-compliant automotive applications requiring mixed-signal integration, field-upgradable hardware functionality, and robust operation across extended temperature ranges.
FAQ
What is the maximum operating temperature range certified for CY8C3446PVA-091?
CY8C3446PVA-091 is AEC-Q100 Grade 2 qualified, rated for continuous operation from –40 °C to +105 °C. This specification is validated per stress test requirements including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - making it suitable for under-dash and non-engine-compartment automotive locations.
Does CY8C3446PVA-091 support USB device mode without external components?
Yes. The part integrates a USB 2.0 Full-Speed (12 Mbps) physical layer with internal oscillator-based timing, eliminating the need for an external USB PHY or crystal. It supports standard USB device classes (CDC, HID, MSC) and can be programmed via USB bootloader using PSoC Creator™ or custom host applications.
How many analog input channels can be simultaneously sampled using the delta-sigma ADC?
The delta-sigma ADC supports up to 62 analog inputs via GPIO routing, but simultaneous sampling is limited to one channel at a time. However, sequential sampling across multiple channels achieves effective throughput of up to 192 ksps total - sufficient for time-multiplexed acquisition of 16 thermistors or 8 pressure sensors with <5 µs inter-channel skew.
Is the 24-channel DMA controller capable of servicing both analog and digital peripherals concurrently?
Yes. The 24-channel DMA supports concurrent transfers between flash/SRAM, ADC result registers, DAC data buffers, CAN message RAM, and USB endpoint FIFOs. Each channel has independently configurable priority, descriptor chaining, and AHB bus arbitration - enabling zero-CPU-overhead data movement for real-time CAN+ADC+USB coexistence in diagnostic and gateway applications.
CY8C3446PVA-091 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™ 3 CY8C34xx
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 25
- 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:
CY8C3446PVA-091 FAQ
1.How can I place an order for CY8C3446PVA-091 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3446PVA-091 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 CY8C3446PVA-091 reliable?
The price and inventory of CY8C3446PVA-091 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3446PVA-091 is usually 5 days.
3.What payment methods are accepted for CY8C3446PVA-091?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3446PVA-091 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3446PVA-091?
CY8C3446PVA-091 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3446PVA-091 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 CY8C3446PVA-091?
For technical support, including CY8C3446PVA-091 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3446PVA-091 requirements.
6.How does Aetrix verify that CY8C3446PVA-091 is sourced from the original manufacturer or authorized distributors?
All CY8C3446PVA-091 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 CY8C3446PVA-091 meets industry standards.
7.What is the process for return or replacement of CY8C3446PVA-091?
All CY8C3446PVA-091 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3446PVA-091, 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 CY8C3446PVA-091 part is unused and in its original packaging.
Return procedure for CY8C3446PVA-091:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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