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Infineon Technologies CY8C3446PVA-102
- Part No.:
- CY8C3446PVA-102
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C3446PVA-102.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,501
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Product details
Overview
CY8C3446PVA-102 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 (16 Rx/8 Tx buffers), USB 2.0 Full-Speed peripheral, and configurable analog/digital peripherals - deployed in engine control units, body electronics, and ADAS sensor interfaces.
For engineers reviewing the CY8C3446PVA-102 datasheet, CY8C3446PVA-102 pinout, CY8C3446PVA-102 application, or CY8C3446PVA-102 equivalent, key selection criteria include its 100-pin TQFP package, –40 °C to +125 °C extended temperature rating, integrated delta-sigma ADC (12-bit, 192 ksps, 66 dB SINAD), dual opamps (25 mA drive), and CAN+USB coexistence on a single die.
Technical Context
The CY8C3446PVA-102 implements a hierarchical mixed-signal architecture centered on a single-cycle 8051 CPU with AMBA AHB bus interconnect, supporting concurrent analog signal acquisition (via delta-sigma ADC with ×0.25–×16 programmable gain) and digital control (via 24 UDBs and DSI routing). Its clocking subsystem includes IMO (3–62 MHz), crystal oscillator (4–25 MHz), PLL (up to 50 MHz), and low-power ILO (1/33/100 kHz).
Analog resources are routed through dedicated analog buses enabling any of 62 GPIOs to serve as analog inputs; digital peripherals-including CAN 2.0b, USB FS PHY, four 16-bit timers/PWMs, and I²C multimaster-are mapped to UDBs or hard-macro blocks, with all I/O fully routable via programmable interconnect fabric.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz - enables deterministic real-time control with multiply/divide instructions and 512-byte flash cache for reduced instruction fetch latency. |
| Memory | 64 KB flash (100k write cycles, 20-yr retention), 8 KB SRAM, 2 KB EEPROM (1M cycles) - supports firmware updates, data logging, and secure boot without external memory. |
| Analog ADC | Configurable delta-sigma ADC: 8–12-bit resolution, 192 ksps max sample rate, 66 dB SINAD @ 12-bit - suitable for high-accuracy thermocouple, pressure, and current sensing in automotive environments. |
| Digital Interfaces | Full CAN 2.0b (16 Rx/8 Tx buffers), USB 2.0 Full-Speed (12 Mbps, TID#40770053 certified), I²C multimaster - enables direct integration into vehicle networks and diagnostic ports without bridge ICs. |
| Temperature Range | –40 °C to +125 °C extended grade - validated per AEC-Q100 Grade 0, allowing deployment in under-hood ECUs and transmission control modules. |
| Power Efficiency | 200 nA hibernate mode with RAM retention, 1 µA sleep with RTC/LVD - extends battery life in always-on vehicle subsystems such as door modules and occupancy sensors. |
| I/O System | 62 GPIOs + 8 SIO + 2 USBIO, all with configurable drive strength, pull-up/down, open-drain, and CapSense® support - eliminates external level shifters and reduces BOM count in multi-voltage domains. |
Pinout & Package
Package: 100-pin Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDD | Analog/Digital Power Supply | Separate 1.71–5.5 V supplies enable noise isolation between analog measurement circuits and digital logic; VDDA must be ≥ VDDD for ADC accuracy. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | General-Purpose I/O | All 62 GPIOs support analog input routing, CapSense®, LCD segment drive, and configurable slew rate - no fixed-function pin constraints. |
| CAN_TX, CAN_RX | CAN Bus Interface | Dedicated differential pair pins with internal termination and slew-rate control - compliant with ISO 11898-2 physical layer requirements. |
| USBDP, USBDM | USB 2.0 Full-Speed PHY | Integrated transceiver with internal 1.5-kΩ pull-up on USBDP - eliminates external USB pull-up resistor and ESD protection diodes. |
| XIN, XOUT | Crystal Oscillator Input/Output | Supports 4–25 MHz crystals for ±50 ppm timing accuracy - required for CAN bit timing stability and USB frame synchronization. |
| SWDIO, SWCLK | Serial Wire Debug Interface | 2-wire JTAG alternative enabling in-circuit programming and real-time trace with 4 KB instruction buffer - critical for production firmware flashing and field diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable UDB Array (24 blocks) | Each UDB combines PLD logic + state machine to implement custom digital peripherals (e.g., LIN, PRS, CRC) without consuming CPU cycles - accelerates protocol stack development. |
| Delta-sigma ADC with PGA | Programmable gain stage (×0.25 to ×16) and 12-bit mode at 192 ksps allow direct connection to mV-range sensors (e.g., strain gauges, RTDs) without external amplifiers. |
| Dual Uncommitted Opamps | 25 mA output drive capability per opamp supports active filtering, current sourcing for 4–20 mA loops, and transimpedance configurations for photodiode interfaces. |
| CapSense® on Any GPIO | Enables capacitive touch buttons, sliders, and proximity sensing using standard GPIOs - eliminates dedicated touch controller IC and reduces PCB layer count. |
| Hardware Bootloader Support | Bootloader accessible via I²C, SPI, UART, or USB allows field firmware updates without JTAG hardware - essential for OTA compliance in automotive telematics. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor signals in gasoline direct injection systems. IC Role / Device Role / Timing Role: Central signal acquisition and closed-loop control unit executing fuel injection timing, spark advance, and knock detection algorithms. Use Value: Integrated 12-bit delta-sigma ADC with programmable gain eliminates external signal conditioning; CAN 2.0b enables seamless communication with transmission and ABS modules. |
Use Scenario: Managing power distribution, lighting sequences, window lift control, and door lock actuation in modern vehicle cabins. IC Role / Device Role / Timing Role: Mixed-signal controller handling analog sensor inputs (e.g., ambient light, humidity), digital switch scanning, and PWM-driven LED dimming. Use Value: 62 GPIOs with CapSense® and LCD drive reduce external components; 200 nA hibernate mode extends battery life during vehicle sleep states. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Motor Controller |
|
Use Scenario: Aggregating raw data from ultrasonic parking sensors, radar pre-processors, and camera focus actuators for fusion processing. IC Role / Device Role / Timing Role: Signal preprocessing node performing analog front-end conditioning, time-of-flight calculation, and CAN message formatting before host MCU handoff. Use Value: 192 ksps ADC sampling captures fast ultrasonic echo returns; USB FS interface enables factory calibration and firmware updates via service tools. |
Use Scenario: Closed-loop torque control of brushless DC motors using Hall-effect or resolver feedback in steer-by-wire systems. IC Role / Device Role / Timing Role: Real-time motor commutation controller generating six-phase PWM outputs synchronized to rotor position with <1 µs jitter. Use Value: Four independent 16-bit PWM blocks with dead-time insertion and fault protection ensure precise motor phase timing; CAN interface reports torque demand and fault status to vehicle network. |
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, 160 MHz, 1 MB flash, CAN FD support, no integrated USB or CapSense® | Better suited for high-throughput CAN FD gateways and safety-critical ASIL-B functions; lacks analog configurability and touch integration | Select when CAN FD bandwidth > 1 Mbps is required or ISO 26262 ASIL-B certification is mandatory. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, 512 KB flash, 12-bit SAR ADC (1 Msps), no USB or CAN | Optimized for ultra-low-power body electronics with simpler analog needs; no mixed-signal flexibility or USB connectivity | Select for cost-sensitive, low-complexity BCMs where USB/CAN are not needed and SAR ADC speed suffices. |
Compared with S32K144 and RL78/F14, the CY8C3446PVA-102 uniquely delivers USB+CAN coexistence, field-reconfigurable analog blocks, and CapSense® on a single die - reducing component count and enabling late-stage feature additions via firmware-only changes.
Availability
CY8C3446PVA-102 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor hubs, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for CY8C3446PVA-102 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 manufactures and supports the PSoC® family, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets.
The CY8C34 Automotive Family targets AEC-Q100 Grade 0 applications requiring mixed-signal integration, functional safety readiness, and long-term supply stability - especially in powertrain, chassis, and comfort electronics.
FAQ
Is CY8C3446PVA-102 pin-compatible with other CY8C34 devices?
Yes - all 100-pin TQFP variants in the CY8C34 Automotive Family share identical pinouts and footprint, including CY8C3446LTI-102 and CY8C3446AXI-102. Differences are limited to internal flash configuration, voltage range, and temperature grade; no PCB redesign is needed when upgrading within the same package.
Does CY8C3446PVA-102 support ISO 11898-2 CAN physical layer compliance?
Yes - the device integrates a CAN controller with dedicated CAN_TX/CAN_RX pins, internal slew-rate control, and recessive-dominant transition timing aligned to ISO 11898-2. External CAN transceiver (e.g., TJA1042) is still required for bus driving, but the PSoC handles protocol stack and timing.
Can the onboard USB interface operate without an external crystal?
Yes - the USB 2.0 Full-Speed peripheral uses the internal IMO (internal main oscillator) with automatic frequency trimming against the USB SOF packet, eliminating need for a 12 MHz crystal. Crystal is optional and used only when higher USB timing precision or CAN synchronization is required.
What is the maximum operating frequency of the delta-sigma ADC in 12-bit mode?
The delta-sigma ADC achieves 192 ksps maximum sample rate in 12-bit mode with 66 dB SINAD and ±1 LSB INL/DNL. This performance is guaranteed across the full –40 °C to +125 °C temperature range and 1.71–5.5 V supply, per datasheet Section 11.5.
CY8C3446PVA-102 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:
- CANbus, 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-102 FAQ
1.How can I place an order for CY8C3446PVA-102 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3446PVA-102 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-102 reliable?
The price and inventory of CY8C3446PVA-102 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3446PVA-102 is usually 5 days.
3.What payment methods are accepted for CY8C3446PVA-102?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3446PVA-102 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3446PVA-102?
CY8C3446PVA-102 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3446PVA-102 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-102?
For technical support, including CY8C3446PVA-102 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3446PVA-102 requirements.
6.How does Aetrix verify that CY8C3446PVA-102 is sourced from the original manufacturer or authorized distributors?
All CY8C3446PVA-102 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-102 meets industry standards.
7.What is the process for return or replacement of CY8C3446PVA-102?
All CY8C3446PVA-102 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3446PVA-102, 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-102 part is unused and in its original packaging.
Return procedure for CY8C3446PVA-102:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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