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Infineon Technologies CY8C3866PVI-070T
- Part No.:
- CY8C3866PVI-070T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C3866PVI-070T.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,437
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Product details
Overview
CY8C3866PVI-070T from Infineon Technologies (formerly Cypress) is a programmable System-on-Chip (PSoC® 3) integrating an 8-bit 8051 CPU, configurable analog/digital peripherals, 64 KB flash, 8 KB RAM, and full CAN 2.0b interface. It operates from 1.71–5.5 V at up to 67 MHz, supports CapSense® for touch sensing, and delivers ultra-low-power operation down to 200 nA in hibernate mode with RAM retention - used in industrial HMI, medical sensor nodes, and automotive body control modules.
For engineers reviewing the CY8C3866PVI-070T datasheet, CY8C3866PVI-070T pinout, CY8C3866PVI-070T application, or CY8C3866PVI-070T equivalent, key selection criteria include its 72-pin TQFP package, 67-MHz clock capability, integrated DFB digital filter processor, USB 2.0 Full-Speed peripheral, and dual-domain I/O voltage support (1.2–5.5 V).
Technical Context
The CY8C3866PVI-070T implements a highly configurable mixed-signal architecture centered on an enhanced 8051 core with DMA and a 24-bit digital filter block (DFB). Its routing fabric enables any analog or digital peripheral function-including four TCPWM blocks, full CAN 2.0b (16 Rx/8 Tx), and USB FS-to be assigned to any GPIO via the Digital System Interconnect (DSI).
Analog subsystem flexibility includes a configurable delta-sigma ADC (8–20-bit), up to four opamps, four comparators, four DACs, and programmable SC/CT blocks supporting PGA, TIA, mixer, and sample-and-hold functions - all controllable by firmware and routed through dedicated analog interconnect.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Enhanced 8-bit 8051 running up to 67 MHz with 32 interrupt inputs and hardware multiplier |
| Memory | 64 KB flash (with ECC support), 8 KB SRAM, 2 KB EEPROM - enabling secure firmware storage and runtime data logging |
| Digital Peripherals | Four 16-bit TCPWM blocks, full CAN 2.0b (16 Rx/8 Tx buffers), USB 2.0 FS (12 Mbps), I²C (1 Mbps), and 24 UDBs for custom logic synthesis |
| Analog Peripherals | Configurable delta-sigma ADC (8–20-bit), four opamps, four comparators, four 8-bit DACs, and CapSense® support for up to 62 sensors |
| Power Modes | Active (1.2 mA @ 6 MHz), sleep (1 µA), hibernate (200 nA with RAM retention) - enabling battery-powered operation for >10 years |
| I/O System | 72-pin TQFP package with 62 GPIOs, eight SIO pins (25 mA sink, overvoltage tolerant), and flexible routing of analog/digital signals to any pin |
| Clock Sources | Internal oscillator (3–62 MHz, ±1% at 3 MHz), PLL (up to 67 MHz), external crystal (4–25 MHz), and low-power 33 kHz/100 kHz oscillators |
Pinout & Package
The CY8C3866PVI-070T is housed in a 72-pin Thin Quad Flat Package (TQFP) with 0.5 mm pitch, thermally enhanced for industrial ambient operation (–40 to +85 °C). Pin assignments follow the CY8C38 family standard layout, supporting dual-voltage I/O domains (VDDIO_A/B/C/D), dedicated USBIO, SWD/JTAG debug, and analog reference routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Multiple independent power domains (up to six) enable selective peripheral shutdown and mixed-voltage I/O interfacing |
| P0[0]–P0[7] | General-purpose I/O bank | Supports CapSense®, analog input, digital routing, and LCD segment drive - configurable per-pin voltage threshold and drive strength |
| P1[0]–P1[7] | Performance I/O (SIO) | Hot-swap capable, overvoltage tolerant (up to 5.5 V), 25 mA sink - suitable for direct LED driving or industrial sensor interfacing |
| USB_D+, USB_D− | USB 2.0 Full-Speed differential pair | Integrated transceiver with internal 1.5-kΩ pull-up; requires no external PHY - enables HID, CDC, or vendor-class device implementation |
| TCK, TMS, TDI, TDO | JTAG debug interface | 4-wire boundary scan and firmware programming; compatible with MiniProg3 and industry-standard debug tools |
| CAN_TX, CAN_RX | Controller Area Network interface | Dedicated differential signaling pins supporting ISO 11898-2 compliant bus communication at up to 1 Mbps |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Four SC/CT blocks configurable as PGA, TIA, mixer, or sample-and-hold - eliminating need for external signal-conditioning ICs |
| Digital Filter Block (DFB) | 24-bit, 64-tap fixed-point FIR/IIR engine - enables real-time sensor filtering (e.g., ECG noise suppression) without CPU load |
| CapSense® Integration | Hardware-accelerated capacitive sensing for up to 62 electrodes with built-in baseline tracking and noise immunity - certified for IEC 61000-4-3/6 compliance |
| Flexible Clocking | 12 independent clock dividers routable to any peripheral - allows simultaneous operation of USB (48 MHz), CAN (8 MHz), and ADC (1 MHz) from a single PLL source |
| Secure Bootloader | Field-upgradable firmware via I²C, SPI, UART, or USB with checksum validation and flash write protection - supports OTA updates in medical and industrial deployments |
Applications
| Industrial HMI Panel | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled control panel for PLC-based machinery with LED status indicators and CAN bus integration. IC Role / Device Role / Timing Role: Central controller managing CapSense® buttons, driving 4×16-segment LCD, executing CAN messaging, and regulating power domains. Use Value: Single-chip integration reduces BOM count by 7+ discrete components (touch controller, CAN transceiver, LCD driver, voltage regulators) while maintaining <100 µs CAN response latency. |
Use Scenario: Battery-powered wearable ECG monitor with analog front-end, motion artifact filtering, and Bluetooth LE gateway interface. IC Role / Device Role / Timing Role: Signal acquisition hub performing delta-sigma ADC sampling, DFB-based notch filtering, and USB HID data streaming to host PC. Use Value: On-chip DFB offloads 95% of digital filtering from CPU, extending coin-cell battery life to >18 months at 250 Hz sampling rate. |
| Automotive Body Control Module | Smart Home Energy Monitor |
|
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting via LIN and CAN networks. IC Role / Device Role / Timing Role: Mixed-signal controller interfacing Hall-effect sensors, driving MOSFET loads, and handling LIN 2.0 slave protocol with wake-on-LIN capability. Use Value: Programmable UDBs implement custom LIN state machines and PWM dimming logic - avoiding ASIC redesign for variant-specific features. |
Use Scenario: DIN-rail mounted energy meter measuring current/voltage harmonics, calculating kWh, and reporting via RS-485 and Wi-Fi. IC Role / Device Role / Timing Role: High-precision analog acquisition engine with 16-bit ADC resolution, CRC-16 checksum generation, and secure bootloader for firmware updates. Use Value: Integrated EEPROM stores calibration coefficients and tariff tables; hibernate mode draws only 200 nA during grid outage monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C5868LTI-LP097 | 32-bit ARM Cortex-M3 core, 256 KB flash, higher clock (80 MHz), but no native CAN; requires external transceiver | Targets higher-performance motor control or USB host applications where CAN is optional | Select when migrating to ARM ecosystem and requiring >100 DMIPS performance with RTOS support |
| STM32F303VCT6 | ARM Cortex-M4F with FPU, 256 KB flash, integrated CAN, but lacks CapSense® and programmable analog blocks | Suitable for cost-sensitive industrial control where capacitive touch is replaced by mechanical switches | Choose when analog signal chain is fixed and firmware reuse across ST's ecosystem is prioritized |
Compared with CY8C3866PVI-070T, the CY8C5868LTI-LP097 offers greater compute throughput but sacrifices integrated analog configurability and native CAN PHY; the STM32F303VCT6 provides lower unit cost and mature toolchain support but requires external components for touch and precision analog front-end design.
Availability
CY8C3866PVI-070T is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensor nodes, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for CY8C3866PVI-070T 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 and supports the PSoC® portfolio, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets.
The CY8C38 family belongs to Infineon's programmable mixed-signal SoC product line, designed specifically for applications demanding configurable analog/digital integration, ultra-low-power operation, and rapid prototyping using PSoC Creator™.
FAQ
Does CY8C3866PVI-070T support USB device enumeration without external crystal?
Yes. The device integrates an internal 48-MHz oscillator qualified for USB Full-Speed (12 Mbps) operation and certified under TID#40770053. No external crystal is required for USB device functionality, reducing BOM count and PCB area. The internal oscillator maintains ±0.25% accuracy across temperature and voltage ranges specified in the datasheet.
What is the maximum number of CapSense® electrodes supported on this part?
CY8C3866PVI-070T supports up to 62 self-capacitive or mutual-capacitive electrodes using its dedicated CapSense® CSD v2.0 hardware block. Electrode count is limited by available GPIOs and routing constraints - all 62 can be active simultaneously with automatic scanning and baseline compensation enabled in firmware.
Can the DFB perform real-time FFT operations?
No. The DFB is a fixed-point 24-bit FIR/IIR filter engine with 64 taps and no native FFT instruction set. It supports cascaded biquad sections and coefficient loading via DMA, but FFT computation requires CPU offload using Keil C libraries or external DSP co-processing. Typical use cases include ECG notch filtering and vibration sensor low-pass conditioning.
Is the 72-pin TQFP package RoHS-compliant and lead-free?
Yes. The CY8C3866PVI-070T uses a lead-free, halogen-free, RoHS-compliant 72-pin TQFP package (PVI suffix) with matte tin finish. It meets JEDEC J-STD-020D moisture sensitivity level 3 and is qualified for reflow soldering per IPC/JEDEC J-STD-020.
CY8C3866PVI-070T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™ 3 CY8C38xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 67MHz
- 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 16x20b; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3866PVI-070T FAQ
1.How can I place an order for CY8C3866PVI-070T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3866PVI-070T 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-070T reliable?
The price and inventory of CY8C3866PVI-070T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3866PVI-070T is usually 5 days.
3.What payment methods are accepted for CY8C3866PVI-070T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3866PVI-070T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3866PVI-070T?
CY8C3866PVI-070T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3866PVI-070T 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-070T?
For technical support, including CY8C3866PVI-070T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3866PVI-070T requirements.
6.How does Aetrix verify that CY8C3866PVI-070T is sourced from the original manufacturer or authorized distributors?
All CY8C3866PVI-070T 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-070T meets industry standards.
7.What is the process for return or replacement of CY8C3866PVI-070T?
All CY8C3866PVI-070T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3866PVI-070T, 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-070T part is unused and in its original packaging.
Return procedure for CY8C3866PVI-070T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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