Infineon Technologies CY8C3866PVI-069
- Part No.:
- CY8C3866PVI-069
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C3866PVI-069.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48SSOP
- Quantity:
- Payment:

- Shipping:

Inventory:3,851
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Product details
Overview
CY8C3866PVI-069 from Cypress Semiconductor is a programmable system-on-chip (PSoC® 3) integrating an 8051 CPU core, up to 64 KB flash, 8 KB SRAM, 2 KB EEPROM, 24-channel DMA, and configurable analog/digital peripherals including a delta-sigma ADC (up to 20-bit, 192 ksps), four opamps, four comparators, and full CAN 2.0b interface. It operates from 0.5 V to 5.5 V and supports industrial temperature range (–40°C to +85°C) in a 48-pin SSOP package for embedded control and sensor signal processing.
For engineers reviewing the CY8C3866PVI-069 datasheet, CY8C3866PVI-069 pinout, CY8C3866PVI-069 application, or CY8C3866PVI-069 equivalent, key selection criteria include its integrated CAN 2.0b controller with 16 Rx/8 Tx buffers, 67 MHz PLL clocking, CapSense® support on any GPIO, and low-power hibernate mode (200 nA with RAM retention).
Technical Context
The CY8C3866PVI-069 implements a single-cycle 8051 CPU core with multiply/divide instructions and AMBA AHB bus architecture for high-bandwidth DMA transfers. Its digital subsystem uses 24 universal digital blocks (UDBs) to implement configurable peripherals such as UART, SPI, I²C, LIN, PRS, CRC, and quadrature decoders via graphical design entry in PSoC Creator™.
Analog functionality centers on a 1.024 V ±0.1% internal reference and a delta-sigma ADC with programmable gain (×0.25 to ×16), 12-bit/192 ksps (66 dB SINAD) or 16-bit/48 ksps (84 dB SINAD) modes. The 24-bit DFB enables real-time FIR/IIR filtering without CPU intervention, while four uncommitted opamps (25 mA drive) and four comparators (95 ns response) support precision front-end conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 with multiply/divide instructions and 67 MHz max operation |
| Memory | 64 KB flash (100K write cycles, 20 yr retention), 8 KB SRAM, 2 KB EEPROM (1M cycles) |
| ADC | Configurable delta-sigma: 12-bit @ 192 ksps (66 dB SINAD) or 16-bit @ 48 ksps (84 dB SINAD) |
| Digital Peripherals | Full CAN 2.0b (16 Rx/8 Tx buffers), FS USB 2.0 (12 Mbps), 4×16-bit timer/counter/PWM blocks |
| Power Modes | Hibernate at 200 nA with RAM retention; sleep at 1 µA with RTC & LVD interrupt |
| I/O System | 62 GPIOs with CapSense® support, LCD direct drive (46×16 segments), 1.2–5.5 V I/O voltage domains |
| Operating Range | –40°C to +85°C; supply voltage 0.5 V to 5.5 V with integrated boost regulator |
Pinout & Package
Package: 48-pin SSOP (PVI), 0.635 mm pitch, JEDEC MO-153 compliant, body size 15.4 mm × 7.6 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | Supplies 1.71–5.5 V to digital logic and CPU subsystem |
| VDDA | Analog power supply | Provides clean 1.71–5.5 V bias for ADC, DAC, opamps, and comparators |
| VSS | Digital ground | Reference return path for CPU, memory, and digital peripherals |
| VSSA | Analog ground | Isolated return path for analog subsystem to minimize noise coupling |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; triggers POR sequence |
| XTAL1/XTAL2 | Crytal oscillator terminals | Supports 4–33 MHz external crystal for precise clocking and RTC accuracy |
| P0[0]–P0[7] | General-purpose I/O | Configurable as GPIO, analog input/output, CapSense®, or LCD segment drivers |
| P1[0]–P1[7] | General-purpose I/O | Supports SIO functions including 25 mA sink capability and USBIO routing |
| CAN_TX/CAN_RX | CAN physical layer interface | Dedicated pins for differential CAN bus signaling per ISO 11898-2 |
| USB_DP/USB_DM | USB 2.0 full-speed PHY | Internal transceiver supports 12 Mbps data transfer without external components |
Key Features
| Feature | Design Value |
|---|---|
| Configurable UDB array (24 units) | Enables custom digital logic synthesis (e.g., protocol engines, state machines) without FPGA-level complexity |
| Delta-sigma ADC with programmable gain | Eliminates external signal conditioning for sensors ranging from thermocouples to ultrasonic transducers |
| Integrated CAN 2.0b controller | Reduces BOM count by embedding protocol handling, message buffering, and error management in silicon |
| CapSense® on any GPIO | Allows capacitive touch sensing implementation across all I/O without dedicated pins or external ICs |
| 200 nA hibernate mode with RAM retention | Enables battery-powered devices to maintain state across multi-year deployments without volatile memory loss |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop control of BLDC motors using hall-effect or encoder feedback in factory automation systems. IC Role / Device Role / Timing Role: PSoC 3 acts as main controller executing motor commutation algorithms, reading analog current/voltage feedback, and driving PWM outputs with synchronized ADC sampling. Use Value: Integrated 16-bit PWM with dead-time insertion and ADC-triggered sampling eliminates timing skew between sensing and actuation, improving torque ripple <5%. | Use Scenario: Central body controller managing door locks, window lifts, mirror adjustment, and interior lighting in 12 V automotive platforms. IC Role / Device Role / Timing Role: Acts as CAN node interfacing with vehicle network while locally processing switch inputs, driving relays/LEDs, and monitoring battery voltage. Use Value: On-chip CAN 2.0b controller with 16 Rx buffers ensures reliable reception of multiplexed messages even during bus congestion (≥500 kbps). |
| Medical Patient Monitoring | Consumer Smart Home Sensors |
Use Scenario: Portable ECG/EMG acquisition device requiring high-fidelity analog front-end and low-power operation for multi-hour battery life. IC Role / Device Role / Timing Role: Delta-sigma ADC digitizes biopotential signals; DFB performs real-time 50/60 Hz notch filtering; opamps condition electrode inputs. Use Value: 84 dB SINAD at 48 ksps enables ≥12-bit effective resolution for sub-microvolt signal detection with no external filter components. | Use Scenario: Battery-powered air quality sensor node measuring CO₂, VOC, and humidity with capacitive touch UI and BLE gateway interface. IC Role / Device Role / Timing Role: Manages multi-sensor polling, CapSense® button decoding, and SPI communication to external BLE module. Use Value: 200 nA hibernate mode extends CR2032 battery life to >2 years when paired with duty-cycled sensor reads every 30 seconds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072RB | ARM Cortex-M0 core, no integrated analog subsystem; requires external ADC/DAC/opamps for sensor signal chain | Lacks CapSense® and configurable analog blocks; suitable only where digital control dominates | Select when existing ARM toolchain familiarity outweighs need for analog integration |
| MAX32660 | ARM Cortex-M4F core with integrated 16-bit ADC and ultra-low-power modes (1.6 µA/MHz), but no CAN or USB PHY | No native CAN or USB support; limited digital peripheral configurability vs. UDB array | Prefer for wearable biosensors needing floating-point math and Bluetooth coexistence, not automotive networks |
Compared with STM32F072RB and MAX32660, CY8C3866PVI-069 uniquely combines CAN 2.0b, USB 2.0, and a fully configurable analog subsystem in a single chip-enabling mixed-signal designs without discrete signal-chain components or protocol bridge ICs.
Availability
CY8C3866PVI-069 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical patient monitoring, and consumer smart home sensors requiring stable component supply and long-term lifecycle support.
Supply support for CY8C3866PVI-069 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, configurable mixed-signal ICs for embedded systems, emphasizing integration, low-power operation, and developer productivity.
The CY8C38 family targets applications demanding both precision analog acquisition and flexible digital control-especially where last-minute firmware-based feature changes replace costly hardware revisions.
FAQ
Does CY8C3866PVI-069 support USB device enumeration without external crystal?
Yes. The device integrates a full-speed USB 2.0 PHY with an internal oscillator calibrated to ±0.25% over temperature and voltage, enabling reliable USB enumeration at 12 Mbps without requiring an external 48 MHz crystal or oscillator circuit.
What is the maximum sample rate achievable with the delta-sigma ADC in 16-bit mode?
In 16-bit mode, the delta-sigma ADC achieves a maximum sample rate of 48 ksps with 84 dB SINAD, ±2 LSB INL, and ±1 LSB DNL-verified across –40°C to +85°C with VDDA = 3.3 V and internal 1.024 V reference enabled.
Can all 62 GPIOs be used simultaneously for CapSense® button sensing?
No. While CapSense® can be routed to any GPIO, simultaneous use of all 62 pins is constrained by analog routing resources and scan time. Practical implementations support up to 32 independent buttons or sliders using dedicated SC/CT blocks and sequential scanning within 100 ms total frame time.
Is the CAN controller compliant with ISO 11898-2 physical layer requirements?
No. The CY8C3866PVI-069 implements the CAN protocol stack and message handling logic only. An external CAN transceiver (e.g., TJA1042T/3) is required to meet ISO 11898-2 physical layer specifications for differential signaling and bus fault protection.
CY8C3866PVI-069 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™ 3 CY8C38xx
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 67MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART, USB
- 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 16x20b; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3866PVI-069 FAQ
1.How can I place an order for CY8C3866PVI-069 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3866PVI-069 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 CY8C3866PVI-069 reliable?
The price and inventory of CY8C3866PVI-069 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3866PVI-069 is usually 5 days.
3.What payment methods are accepted for CY8C3866PVI-069?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3866PVI-069 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3866PVI-069?
CY8C3866PVI-069 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3866PVI-069 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 CY8C3866PVI-069?
For technical support, including CY8C3866PVI-069 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3866PVI-069 requirements.
6.How does Aetrix verify that CY8C3866PVI-069 is sourced from the original manufacturer or authorized distributors?
All CY8C3866PVI-069 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 CY8C3866PVI-069 meets industry standards.
7.What is the process for return or replacement of CY8C3866PVI-069?
All CY8C3866PVI-069 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3866PVI-069, 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 CY8C3866PVI-069 part is unused and in its original packaging.
Return procedure for CY8C3866PVI-069:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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