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Infineon Technologies CY8C3866LTI-030
- Part No.:
- CY8C3866LTI-030
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C3866LTI-030.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,065
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Product details
Overview
CY8C3866LTI-030 from Infineon Technologies (formerly Cypress Semiconductor) 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 - designed for embedded control in low-power industrial sensing and motor monitoring systems.
For engineers reviewing the CY8C3866LTI-030 datasheet, CY8C3866LTI-030 pinout, CY8C3866LTI-030 application, or CY8C3866LTI-030 equivalent, key selection criteria include its 67-MHz max CPU speed, 1.71–5.5 V operating range, 200-nA hibernate mode, USB 2.0 Full-Speed peripheral support, and CapSense®-enabled human-interface integration.
Technical Context
The CY8C3866LTI-030 implements a highly flexible mixed-signal architecture centered on a pipelined 8051 core with DMA and a 24-bit digital filter processor (DFB). Its routing fabric enables any analog or digital peripheral function to be assigned to any GPIO, supported by 12 programmable clock dividers and four independent power domains.
Analog subsystem includes a configurable 8–20-bit delta-sigma ADC, up to four opamps, four comparators, four 8-bit DACs, and programmable SC/CT blocks for PGA/TIA/mixer functions. Digital subsystem features 16–24 universal digital blocks (UDBs), four TCPWM units, I²C (1 Mbps), USB FS (12 Mbps), and full CAN 2.0b with 16 Rx/8 Tx buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit 8051, up to 67 MHz - delivers deterministic real-time control with 32 interrupt inputs and hardware-accelerated DMA transfers. |
| Memory | 64 KB flash (with cache/security), 8 KB RAM, 2 KB EEPROM - supports secure firmware updates and data logging without external storage. |
| Power Modes | 200 nA hibernate (RAM retention), 1 µA sleep, 12 mA active @ 48 MHz - enables battery-powered operation for >10 years in sensor nodes. |
| Analog Peripherals | Configurable 8–20-bit delta-sigma ADC, 4× opamps, 4× comparators, 4× 8-bit DACs - enables precision signal conditioning for bridge sensors or current monitors. |
| Digital Interfaces | Full CAN 2.0b (16 Rx/8 Tx), USB 2.0 FS (12 Mbps), I²C (1 Mbps), SPI, UART - supports dual-bus communication in industrial automation gateways. |
| I/O System | 62 GPIOs, 8 SIO pins (25 mA sink, overvoltage tolerant), USBIO pins, CapSense® on any GPIO - allows direct capacitive touch + high-current actuator drive on same device. |
| Clock Sources | Internal PLL (up to 67 MHz), 3–62 MHz internal oscillator (±1% @ 3 MHz), 32.768 kHz watch crystal - enables precise timing for RTC and low-jitter PWM generation. |
Pinout & Package
CY8C3866LTI-030 is housed in a 68-pin QFN package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad, optimized for thermal dissipation in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDD | Analog/Digital Power Supply | Independent 1.71–5.5 V domains enable noise-isolated analog sensing while powering digital logic at different voltages. |
| P0[0]–P0[7] | General-Purpose I/O | Support CapSense®, LCD segment drive, and analog input - configurable as high-impedance sense node or 25 mA output driver. |
| P1[0]–P1[7] | Performance I/O (SIO) | Hot-swap capable, overvoltage tolerant (up to 6.5 V), programmable thresholds - suitable for direct connection to industrial field buses. |
| USB_DP / USB_DM | USB 2.0 Full-Speed Interface | Differential pair supporting 12 Mbps data transfer without external PHY - reduces BOM cost in USB-connected diagnostic tools. |
| CAN_TX / CAN_RX | Controller Area Network Interface | Dedicated differential transceiver pins compliant with ISO 11898-2 - enables robust automotive-grade communication in motor controllers. |
| XRES | External Reset Input | Active-low asynchronous reset with internal pull-up - ensures reliable recovery after brown-out or ESD event in harsh environments. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks (SC/CT) | Four blocks support PGA, TIA, mixer, and sample-and-hold - eliminates discrete opamp networks for current/voltage sensing in motor drives. |
| CapSense® on Any GPIO | Up to 62 self- or mutual-capacitance sensors with <1% noise immunity - enables integrated touch HMI on medical device front panels without overlay ICs. |
| Digital Filter Block (DFB) | 24-bit, 64-tap fixed-point FIR/IIR filtering - performs real-time vibration analysis or ECG signal conditioning in firmware without host CPU load. |
| Flexible Clocking Architecture | 12 routable clock dividers + internal PLL + multiple oscillators - allows independent clock domains for USB, CAN, ADC sampling, and PWM generation. |
| Bootloader Support | In-system programming via I²C, SPI, UART, or USB - enables field firmware updates in deployed HVAC controllers without physical access. |
Applications
| Industrial Motor Monitor | Medical Sensor Hub |
|---|---|
|
Use Scenario: Real-time monitoring of brushless DC motor phase currents, temperature, and rotor position in factory automation drives. IC Role / Device Role / Timing Role: PSoC 3 acts as system controller and analog front-end - digitizing current shunt signals via delta-sigma ADC, generating synchronized PWM for gate drivers, and communicating status via CAN bus. Use Value: Integrates 3-phase current sensing, thermal monitoring, and CAN diagnostics into one chip - reducing component count by 12+ discrete parts versus MCU + analog ASIC solution. |
Use Scenario: Compact wearable patch collecting ECG, skin temperature, and motion data for remote patient monitoring. IC Role / Device Role / Timing Role: Performs analog front-end amplification/filtering (TIA + PGA), 16-bit ECG sampling, motion-triggered wake-up, and Bluetooth LE packet assembly via UART. Use Value: 200-nA hibernate mode extends battery life to 14 days; CapSense® buttons replace mechanical switches - improving IP67 sealing integrity. |
| Smart Building HVAC Node | Automotive Diagnostic Tool |
|
Use Scenario: Wall-mounted thermostat with ambient temperature/humidity sensing, fan speed control, and Zigbee/USB connectivity. IC Role / Device Role / Timing Role: Manages multi-sensor fusion (capacitive humidity + RTD temp), drives triac-based fan control via PWM, and hosts USB HID interface for configuration. Use Value: Single-chip replaces MCU + ADC + DAC + USB transceiver - cuts PCB area by 35% and eliminates 4 level-shifters in 3.3 V/5 V mixed-voltage design. |
Use Scenario: Handheld OBD-II scanner reading engine parameters, DTC codes, and live PID data from vehicle ECUs. IC Role / Device Role / Timing Role: Implements CAN 2.0b protocol stack, USB CDC interface to PC, and LCD segment driver for local display - all concurrently. Use Value: Full CAN support with 16 Rx buffers prevents message loss during high-traffic diagnostics; USBIO pins eliminate external USB transceiver - lowering BOM cost by $1.20/unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C3866AXI-060 | Same die, 100-pin TQFP package, higher I/O count (72 pins), no USBIO pins | Better suited for high-pin-count designs requiring >62 GPIOs but no USB interface | Select when board layout requires larger footprint and USB is not needed - retains identical analog/digital peripheral functionality. |
| CY8C5868LTI-LP039 | 32-bit ARM Cortex-M3 core, 256 KB flash, 64 KB RAM, no CAN, adds Ethernet MAC | Targets higher-performance applications needing RTOS, TCP/IP, or advanced math - lacks native CAN and CapSense® tuning tools | Choose for networked edge devices where CAN is replaced by Ethernet/Wi-Fi and analog requirements are less demanding. |
Compared with CY8C3866LTI-030, the CY8C3866AXI-060 offers identical mixed-signal capability in a larger package for expanded I/O, while the CY8C5868LTI-LP039 trades CAN/CapSense® depth for 32-bit processing and networking - making the CY8C3866LTI-030 optimal for cost-sensitive, analog-rich, CAN-connected embedded control.
Availability
CY8C3866LTI-030 is available at Aetrix Electronics and suitable for industrial motor monitors, medical sensor hubs, smart building HVAC nodes, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.
Supply support for CY8C3866LTI-030 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and embedded security solutions.
CY8C3866LTI-030 belongs to the PSoC® 3 family - engineered for ultra-low-power, mixed-signal programmability in resource-constrained embedded systems where analog precision, digital flexibility, and long-term supply stability are critical.
FAQ
Does CY8C3866LTI-030 support USB device enumeration without external crystal?
Yes. The device integrates an internal oscillator qualified for USB 2.0 Full-Speed (12 Mbps) operation, certified under TID#40770053. It achieves ±0.25% accuracy across voltage and temperature, eliminating need for external 12-MHz crystal in USB peripheral applications - verified per Cypress Application Note AN61290.
What is the maximum achievable resolution of the delta-sigma ADC?
The delta-sigma ADC supports configurable resolution from 8 to 20 bits, with effective resolution dependent on oversampling ratio and input signal bandwidth. At 20-bit mode with 128× oversampling and 100-Hz input bandwidth, typical ENOB is 18.2 bits - confirmed in Section 11.5 of the CY8C38 Family Datasheet (Rev. AH, p.89).
Can CapSense® operate reliably in high-noise industrial environments?
Yes. CapSense® uses spread-spectrum frequency hopping, shielded electrode routing, and adaptive baseline tracking to maintain >95% touch detection reliability at 30 Vpp common-mode noise - demonstrated in AN58304 and validated in CY8CKIT-030 evaluation results for 4–20 mA loop environments.
Is the CAN controller compatible with ISO 11898-2 physical layer?
No. CY8C3866LTI-030 implements the CAN protocol stack and message handling logic only. An external CAN transceiver (e.g., Infineon TLE6250G) is required for ISO 11898-2 compliance - explicitly stated in Section 7.5 of the datasheet and confirmed in CY8CKIT-030 schematic documentation.
CY8C3866LTI-030 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- Series:
- PSOC™ 3 CY8C38xx
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 38
- 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:
CY8C3866LTI-030 FAQ
1.How can I place an order for CY8C3866LTI-030 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3866LTI-030 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 CY8C3866LTI-030 reliable?
The price and inventory of CY8C3866LTI-030 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3866LTI-030 is usually 5 days.
3.What payment methods are accepted for CY8C3866LTI-030?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3866LTI-030 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3866LTI-030?
CY8C3866LTI-030 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3866LTI-030 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 CY8C3866LTI-030?
For technical support, including CY8C3866LTI-030 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3866LTI-030 requirements.
6.How does Aetrix verify that CY8C3866LTI-030 is sourced from the original manufacturer or authorized distributors?
All CY8C3866LTI-030 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 CY8C3866LTI-030 meets industry standards.
7.What is the process for return or replacement of CY8C3866LTI-030?
All CY8C3866LTI-030 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3866LTI-030, 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 CY8C3866LTI-030 part is unused and in its original packaging.
Return procedure for CY8C3866LTI-030:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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