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Infineon Technologies CY8C3866AXI-054
- Part No.:
- CY8C3866AXI-054
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C3866AXI-054.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,008
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Product details
Overview
CY8C3866AXI-054 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 acquisition.
For engineers reviewing the CY8C3866AXI-054 datasheet, CY8C3866AXI-054 pinout, CY8C3866AXI-054 application, or CY8C3866AXI-054 equivalent, key selection criteria include its integrated CAN 2.0b controller with 16 Rx/8 Tx buffers, 67 MHz PLL clocking, CapSense® support on GPIOs, and low-power hibernate mode (200 nA with RAM retention).
Technical Context
The CY8C3866AXI-054 implements a single-cycle 8051 CPU core with multiply/divide instructions, supported by a multilayer AHB bus architecture enabling concurrent DMA transfers across digital and analog subsystems. Its digital subsystem includes 24 universal digital blocks (UDBs) for custom logic synthesis and prebuilt peripherals such as UART, SPI, I²C, LIN, and quadrature decoders.
Analog functionality centers on a configurable delta-sigma ADC (8–20-bit resolution, 192 ksps max), a 24-bit digital filter block (DFB) for FIR/IIR filtering, four rail-to-rail opamps (25 mA drive), and four high-speed comparators (95 ns response). All analog signals route through a dedicated analog interconnect supporting up to 62 GPIOs as analog inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 67 MHz via internal PLL - enables deterministic real-time control without instruction pipelining overhead. |
| Flash Memory | 64 KB with 100,000 write cycles and 20-year data retention - supports field firmware updates and secure boot storage. |
| ADC Resolution | Configurable 8–20-bit delta-sigma ADC with 192 ksps sample rate at 12-bit mode - delivers 66 dB SINAD for precision thermocouple or bridge sensor digitization. |
| CAN Interface | Full CAN 2.0b compliant with 16 receive and 8 transmit buffers - enables robust automotive-grade communication without external transceiver logic. |
| Power Modes | Hibernate mode draws 200 nA with SRAM retention; sleep mode draws 1 µA with RTC and LVD interrupt - extends battery life in portable monitoring systems. |
| I/O Count | 62 GPIOs + 8 SIOs + 2 USBIOs - allows direct LCD segment drive (46×16), CapSense® electrode routing, and mixed-signal signal conditioning per pin. |
| Operating Voltage | 0.5 V to 5.5 V supply range with integrated boost regulator - supports energy harvesting and multi-rail system integration. |
Pinout & Package
Package: 48-pin SSOP (Small Outline Integrated Circuit), 0.635 mm pitch, body size 15.4 mm × 7.6 mm, RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | Accepts 0.5–5.5 V input; powers CPU, digital logic, and internal regulators - enables single-supply operation across wide voltage domains. |
| VDDA | Analog power supply | 1.71–5.5 V analog domain supply; isolates noise-sensitive ADC/DAC circuits from digital switching transients. |
| XRES | Active-low reset input | Asynchronous reset pin with internal pull-up; triggers full device initialization and clears all registers and memory states. |
| XTAL_IN / XTAL_OUT | Crystal oscillator terminals | Supports 4–33 MHz external crystal for precise timing; enables ±20 ppm accuracy required for CAN bit timing and USB frame synchronization. |
| CAN_TX / CAN_RX | CAN physical layer interface | Dedicated differential pair pins for CAN controller output and input - require external CAN transceiver (e.g., TJA1042) for bus coupling. |
| P0[0]–P0[7] | General-purpose I/O bank | Eight pins with configurable drive strength, slew rate, and analog/digital routing - support CapSense®, opamp output, or comparator input without external components. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable UDB array (24 blocks) | Enables hardware-level implementation of custom digital logic (e.g., protocol accelerators, state machines) without CPU intervention or FPGA licensing. |
| Delta-sigma ADC with programmable gain (×0.25–×16) | Allows direct connection of microvolt-level sensor outputs (e.g., strain gauges, thermopiles) to ADC input without external instrumentation amplifiers. |
| Digital Filter Block (DFB) | 24-bit fixed-point engine performs real-time FIR/IIR filtering on ADC output via DMA - eliminates need for host processor-based signal processing. |
| CapSense® on any GPIO | Enables capacitive touch button/slider/knob implementation using standard I/O pins - reduces BOM count and PCB layer count in HMI designs. |
| Integrated boost regulator | Generates regulated 1.8–5.0 V from 0.5 V input - supports energy harvesting applications with ultra-low-voltage sources like piezoelectric or thermoelectric generators. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: PSoC acts as main motor controller MCU, executing FOC algorithms, managing CAN bus commands, and digitizing analog current/voltage feedback. Use Value: Integrated 16-bit PWM timers with dead-time insertion, 20-bit ADC for current sensing, and CAN 2.0b reduce external component count by 30% versus discrete MCU + peripheral solution. | Use Scenario: Central body controller managing door locks, window lift, mirror adjustment, and lighting via CAN network. IC Role / Device Role / Timing Role: System-on-chip handles CAN message parsing, GPIO actuation, analog sensor reading (e.g., ambient light), and CapSense® for touch switches. Use Value: Single-chip integration of CAN PHY interface, 62 GPIOs for load driving, and CapSense® eliminates separate touch controller and reduces wiring harness complexity. |
| Portable Medical Sensor Hub | Smart Home Environmental Monitor |
Use Scenario: Battery-powered wearable device acquiring ECG, temperature, and motion data for remote health telemetry. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog biosignals, performing on-chip filtering, and transmitting over BLE or USB. Use Value: 200 nA hibernate mode extends battery life to >1 year; delta-sigma ADC with <100 µV offset ensures clinical-grade ECG baseline stability. | Use Scenario: Wall-mounted air quality monitor measuring CO₂, VOC, humidity, and particulate matter with local display and cloud connectivity. IC Role / Device Role / Timing Role: Sensor fusion processor aggregating I²C/SPI sensor data, driving LCD segments directly, and managing Wi-Fi module power sequencing. Use Value: LCD direct drive (46×16 segments) and 8-Msps IDACs enable analog sensor biasing and display backlight control without external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon XMC4504-F100K512 AC | ARM Cortex-M4F core, no integrated CapSense®, requires external ADC for >12-bit precision | Lacks native capacitive touch and analog front-end integration; better suited for high-speed motor control than sensor hub designs | Select when floating-point math, Ethernet MAC, or higher clock speeds (>120 MHz) are primary requirements. |
| Microchip PIC32MZ2048EFM100 | 32-bit MIPS core, no built-in CAN controller, limited analog resources (12-bit SAR ADC only) | Requires external CAN transceiver and signal conditioning circuitry; lacks DFB and programmable gain amplifier blocks | Prefer for cost-sensitive USB-host or graphics-intensive UI applications where analog integration is secondary. |
Compared with XMC4504-F100K512 AC and PIC32MZ2048EFM100, CY8C3866AXI-054 provides superior analog integration (20-bit ADC, opamps, DFB), lower active power (6.6 mA @ 48 MHz), and native CapSense®-making it optimal for compact, battery-efficient sensor acquisition systems requiring mixed-signal flexibility.
Availability
CY8C3866AXI-054 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, portable medical sensor hubs, and smart home environmental monitors requiring stable component supply and long-term lifecycle support.
Supply support for CY8C3866AXI-054 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 development agility.
The CY8C38 family targets programmable system-on-chip applications demanding analog/digital co-design, such as sensor signal conditioning, human-machine interface, and real-time control - with emphasis on reducing external component count and enabling firmware-driven feature updates.
FAQ
Does CY8C3866AXI-054 support USB device functionality without external crystal?
Yes. The device integrates a full-speed (12 Mbps) USB 2.0 PHY with an internal oscillator calibrated to ±0.25% accuracy across voltage and temperature - eliminating need for external 48 MHz crystal in most USB device implementations. USB suspend/resume and descriptor handling are managed in firmware via PSoC Creator's USB Component library.
What is the maximum resolution and sampling rate of the delta-sigma ADC?
The delta-sigma ADC supports up to 20-bit resolution at reduced sample rates (e.g., 12 ksps), and 12-bit resolution at full 192 ksps. At 16-bit mode, it achieves 48 ksps with 84 dB SINAD and ±2 LSB INL - verified per datasheet section 11.5. This performance enables direct digitization of low-noise sensor outputs without external amplification.
Can all 62 GPIOs be used simultaneously for analog input acquisition?
No. While all 62 GPIOs are *capable* of analog routing, the analog mux and ADC channel resources limit concurrent analog inputs to 24 channels. The device uses a shared analog bus architecture: multiple GPIOs can be time-multiplexed into the ADC via firmware-controlled mux configuration, but true simultaneous sampling across all pins is not supported.
Is the CAN controller compatible with ISO 11898-2 physical layer standards?
The CY8C3866AXI-054 implements the CAN 2.0b protocol stack and message handling logic, but does not include a physical layer transceiver. It requires an external ISO 11898-2 compliant transceiver (e.g., TJA1042T/3) connected to CAN_TX/CAN_RX pins to achieve full physical layer compliance, ESD protection, and bus termination.
CY8C3866AXI-054 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 3 CY8C38xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 67MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- CapSense, DMA, POR, PWM, WDT
- Number of I/O:
- 62
- 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:
CY8C3866AXI-054 FAQ
1.How can I place an order for CY8C3866AXI-054 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3866AXI-054 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 CY8C3866AXI-054 reliable?
The price and inventory of CY8C3866AXI-054 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3866AXI-054 is usually 5 days.
3.What payment methods are accepted for CY8C3866AXI-054?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3866AXI-054 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3866AXI-054?
CY8C3866AXI-054 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3866AXI-054 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 CY8C3866AXI-054?
For technical support, including CY8C3866AXI-054 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3866AXI-054 requirements.
6.How does Aetrix verify that CY8C3866AXI-054 is sourced from the original manufacturer or authorized distributors?
All CY8C3866AXI-054 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 CY8C3866AXI-054 meets industry standards.
7.What is the process for return or replacement of CY8C3866AXI-054?
All CY8C3866AXI-054 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3866AXI-054, 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 CY8C3866AXI-054 part is unused and in its original packaging.
Return procedure for CY8C3866AXI-054:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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