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Infineon Technologies CY8C5666AXI-LP004
- Part No.:
- CY8C5666AXI-LP004
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C5666AXI-LP004.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:702
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Product details
Overview
CY8C5666AXI-LP004 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 based programmable system-on-chip (PSoC® 5LP) with up to 256 KB flash, 64 KB RAM, and configurable analog/digital peripherals. It operates from 1.71–5.5 V across –40 to +85 °C, supports USB 2.0 Full-Speed (12 Mbps), CAN 2.0b, and CapSense® for touch interfaces - deployed in industrial HMI, medical sensor nodes, and smart metering systems.
For engineers reviewing the CY8C5666AXI-LP004 datasheet, CY8C5666AXI-LP004 pinout, CY8C5666AXI-LP004 application, or CY8C5666AXI-LP004 equivalent, key selection criteria include its dual ADC capability (delta-sigma + SAR), 24-channel DMA, programmable UDB array for custom logic, low-power hibernate mode (300 nA with RAM retention), and flexible I/O routing to any peripheral function.
Technical Context
The CY8C5666AXI-LP004 implements a tightly integrated mixed-signal SoC architecture centered on an Arm Cortex-M3 core running at up to 80 MHz, paired with a 24-bit digital filter processor (DFB) and dual-clock domain support (up to 74 MHz internal oscillator ±1% accuracy at 3 MHz). Its digital subsystem uses universal digital blocks (UDBs) and DSI routing to enable reconfigurable peripherals including UART, SPI, I²C, LIN, CRC, and PRS generators.
Analog functionality includes a configurable 8–12-bit delta-sigma ADC, two 12-bit SAR ADCs, four opamps, four comparators, four 8-bit DACs, and programmable SC/CT blocks for PGA, TIA, mixer, and sample-and-hold circuits - all routable to up to 62 GPIOs with 1.2–5.5 V interface voltage flexibility and hot-swap tolerance on SIO pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 @ up to 80 MHz - enables real-time deterministic control with 32 interrupt inputs and hardware debug support. |
| Memory | 256 KB flash (with ECC & security), 64 KB RAM, 2 KB EEPROM - supports secure firmware updates and data logging without external storage. |
| ADC | Configurable delta-sigma (8–12-bit) + dual 12-bit SAR ADCs - allows simultaneous high-resolution sensor acquisition and fast transient capture. |
| Digital Peripherals | 4× TCPWM, Full CAN 2.0b (16 Rx/8 Tx), USB 2.0 FS (12 Mbps), I²C (1 Mbps), 20–24 UDBs - enables protocol stacking and custom logic synthesis in one chip. |
| Power Modes | Active (3.1 mA @ 6 MHz), Sleep (2 µA), Hibernate (300 nA w/ RAM retention) - extends battery life in portable and energy-harvested systems. |
| I/O System | Up to 62 GPIOs, 8 SIO pins (25 mA sink, overvoltage tolerant), USBIO pins, LCD direct drive (46×16 segments) - simplifies front-panel integration and reduces BOM count. |
| Clock Sources | Internal oscillators (3–74 MHz ±1%, 1/33/100 kHz LP), 4–25 MHz crystal input, PLL up to 80 MHz, 32.768 kHz watch crystal - ensures timing flexibility across precision and low-power use cases. |
Pinout & Package
Package: 68-pin QFN (9 × 9 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Accepts 1.71–5.5 V; supports up to six independent power domains for mixed-voltage I/O operation. |
| VSS | Ground reference | Common return path for analog/digital sections; requires separate analog/digital ground layout per TRM guidelines. |
| P0[0]–P0[7] | General-purpose I/O | Routable to any digital/analog peripheral; supports CapSense®, LCD segment drive, and comparator input/output. |
| SIO[0]–SIO[7] | Performance I/O | 25 mA sink capability, programmable thresholds, overvoltage tolerance up to 5.5 V - suitable for direct connection to industrial sensors/actuators. |
| USB_DP / USB_DM | USB 2.0 Full-Speed interface | Differential pair supporting 12 Mbps; internal transceiver eliminates need for external PHY or termination resistors. |
| CAN_TX / CAN_RX | CAN 2.0b physical layer interface | Direct connection to external CAN transceiver; supports 16 receive and 8 transmit message buffers with hardware filtering. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally; compatible with pushbutton or microcontroller-driven reset signals. |
| TCK / TMS / TDI / TDO | JTAG debug interface | 4-wire boundary scan and programming; also supports SWD (2-wire) for space-constrained layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Four SC/CT blocks configured as PGA, TIA, mixer, or sample-and-hold - enables signal conditioning for current/voltage sensing without external opamp networks. |
| CapSense® Support | Up to 62 self- or mutual-capacitance sensors routed from any GPIO - delivers robust touch/HMI functionality with built-in noise immunity and auto-tuning. |
| Digital Filter Block (DFB) | 24-bit, 64-tap fixed-point FIR/IIR engine - offloads real-time filtering (e.g., ECG denoising, motor current analysis) from CPU, preserving bandwidth. |
| Flexible Clocking | 12 programmable clock dividers routed to any peripheral or I/O - allows independent timing domains for USB, CAN, ADC sampling, and PWM generation. |
| Secure Bootloader | Factory-programmed ROM bootloader supporting I²C, SPI, UART, USB - enables field firmware updates without JTAG access or external programmer dependency. |
Applications
| Industrial HMI Panel | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled control panel for PLC interface with LED status indicators and analog sensor readouts. IC Role / Device Role / Timing Role: Central controller managing CapSense® buttons, 12-bit SAR ADC for 4–20 mA loop monitoring, and PWM-driven LED dimming. Use Value: Single-chip integration eliminates discrete opamps, level shifters, and touch controller IC - reducing PCB area by >35% and bill-of-materials cost. |
Use Scenario: Battery-powered wearable ECG monitor with real-time signal processing and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition hub using delta-sigma ADC for high-SNR biopotential measurement and DFB for adaptive noise cancellation. Use Value: 300 nA hibernate mode extends battery life to >6 months; on-chip CapSense® enables electrode contact detection without added components. |
| Smart Electricity Meter | Automated Test Equipment (ATE) Front-End |
|
Use Scenario: DIN-rail mounted meter with isolated current/voltage sensing, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Isolated analog acquisition controller interfacing with shunt/CT sensors via PGA-configured SC/CT blocks and SPI-isolated CAN transceiver. Use Value: Dual ADC architecture allows simultaneous RMS calculation and harmonic analysis; internal 1.024 V ±0.1% reference ensures metrology-grade accuracy. |
Use Scenario: Modular test fixture for validating analog sensor outputs across temperature and voltage sweeps. IC Role / Device Role / Timing Role: Precision stimulus/response engine generating calibrated DAC waveforms while capturing responses via SAR ADC with synchronized trigger routing. Use Value: Programmable UDB array implements custom waveform sequencers and pattern generators - eliminating FPGA co-processor requirement. |
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 |
|---|---|---|---|
| CY8C5868AXI-LP035 | Higher memory (512 KB flash, 64 KB RAM), same package and peripheral set - adds extra UDBs and larger SRAM cache. | Preferred for complex firmware with RTOS, large CapSense® configurations, or multi-protocol stacks requiring more code space. | Select when design requires >256 KB flash or advanced DSP workloads beyond DFB capability. |
| STM32F303VCT6 | ARM Cortex-M4F core, 256 KB flash, 48 KB RAM, but fixed-function analog (no programmable SC/CT blocks or CapSense®). | Lacks integrated capacitive touch, configurable analog blocks, and USB/CAN coexistence without external transceivers. | Choose only if existing STM32 toolchain familiarity outweighs need for PSoC's analog configurability and rapid prototyping. |
Compared with CY8C5868AXI-LP035, this part offers identical peripheral flexibility at lower memory cost; versus STM32F303VCT6, it delivers superior analog integration and touch capability without external components - critical for compact, low-BOM sensor edge nodes.
Availability
CY8C5666AXI-LP004 is available at Aetrix Electronics and suitable for industrial HMI, portable medical devices, smart metering, and automated test equipment requiring stable component supply and long-term lifecycle support.
Supply support for CY8C5666AXI-LP004 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, delivering power systems, sensors, microcontrollers, and security solutions for automotive, industrial, and IoT markets.
This device belongs to the PSoC® 5LP family - designed specifically for embedded applications demanding high analog/digital integration, ultra-low power operation, and rapid hardware-software co-design through PSoC Creator™.
FAQ
What development tools are required to program and debug CY8C5666AXI-LP004?
PSoC Creator™ IDE (free Windows-based tool) is mandatory for schematic-based hardware configuration and firmware development. Programming and debugging require either the onboard debugger of CY8CKIT-059, MiniProg3, or any SWD/JTAG-compliant probe. GCC and Keil MDK compilers are supported; no proprietary toolchain lock-in exists.
Does CY8C5666AXI-LP004 support USB device enumeration without external crystal?
Yes - it integrates a factory-trimmed internal oscillator qualified for USB 2.0 Full-Speed (12 Mbps) operation, certified under TID#10840032. No external crystal is needed for basic USB device functionality, though a 32.768 kHz watch crystal is required for RTC or precise sleep timing.
Can CapSense® operate reliably in noisy industrial environments?
Yes - CapSense® employs spread-spectrum modulation, shield-driven sensing, and automatic baseline tracking. The device supports both self- and mutual-capacitance modes, with hardware-accelerated noise rejection enabling operation near 50/60 Hz EMI sources and variable-frequency motor drives.
Is the 300 nA hibernate mode achievable with full RAM retention and wake-on-pin?
Yes - hibernate mode retains full 64 KB RAM content while drawing 300 nA typical (measured at 3.3 V, 25 °C). Wake events include GPIO interrupts, RTC alarm, and low-power comparator output, all configurable without exiting hibernate state.
CY8C5666AXI-LP004 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 5 CY8C56LP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 67MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART, USB
- Peripherals:
- CapSense, DMA, LCD, 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:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 2x12b; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C5666AXI-LP004 FAQ
1.How can I place an order for CY8C5666AXI-LP004 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C5666AXI-LP004 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 CY8C5666AXI-LP004 reliable?
The price and inventory of CY8C5666AXI-LP004 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C5666AXI-LP004 is usually 5 days.
3.What payment methods are accepted for CY8C5666AXI-LP004?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C5666AXI-LP004 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C5666AXI-LP004?
CY8C5666AXI-LP004 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C5666AXI-LP004 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 CY8C5666AXI-LP004?
For technical support, including CY8C5666AXI-LP004 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C5666AXI-LP004 requirements.
6.How does Aetrix verify that CY8C5666AXI-LP004 is sourced from the original manufacturer or authorized distributors?
All CY8C5666AXI-LP004 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 CY8C5666AXI-LP004 meets industry standards.
7.What is the process for return or replacement of CY8C5666AXI-LP004?
All CY8C5666AXI-LP004 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C5666AXI-LP004, 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 CY8C5666AXI-LP004 part is unused and in its original packaging.
Return procedure for CY8C5666AXI-LP004:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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