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Infineon Technologies CY8C5668AXI-LP034
- Part No.:
- CY8C5668AXI-LP034
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C5668AXI-LP034.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:335
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Product details
Overview
CY8C5668AXI-LP034 from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit Arm® Cortex®-M3 based programmable system-on-chip (PSoC® 5LP) with up to 256 KB flash, 64 KB RAM, full CAN 2.0b interface, USB 2.0 Full-Speed peripheral, and configurable analog/digital peripherals. It operates from 1.71–5.5 V across –40 to +85 °C and supports ultra-low-power modes including 300-nA hibernate with RAM retention. Used in industrial control nodes requiring mixed-signal integration and field-upgradable firmware.
For engineers reviewing the CY8C5668AXI-LP034 datasheet, CY8C5668AXI-LP034 pinout, CY8C5668AXI-LP034 application, or CY8C5668AXI-LP034 equivalent, key selection criteria include its dual ADC architecture (delta-sigma + SAR), CapSense® support for 62 sensors, 24-channel DMA, DFB digital filter processor, and flexible routing of any peripheral to any GPIO - critical for rapid prototyping and multi-function embedded designs.
Technical Context
The CY8C5668AXI-LP034 implements a tightly integrated SoC architecture where the Arm Cortex-M3 core (up to 80 MHz) coordinates programmable analog blocks (PGA, TIA, DAC, comparators), digital UDBs (20–24 configurable logic units), and dedicated peripherals (TCPWM, CAN, USBIO). Its clocking subsystem includes internal oscillators (1–74 MHz), PLL, and 32.768-kHz watch crystal support for precise timing.
Power management leverages six independent voltage domains, a boost regulator (0.5–5 V), and three low-power states: active (3.1 mA @ 6 MHz), sleep (2 µA), and hibernate (300 nA with RAM retention). Analog signal chain flexibility is enabled by four opamps, four 12-bit SAR ADCs (up to 1 MSPS), and an 8–12-bit delta-sigma ADC with programmable gain and filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 80 MHz max - enables real-time deterministic control and RTOS deployment in resource-constrained edge nodes. |
| Flash / RAM | 256 KB flash with ECC + 64 KB RAM - supports secure firmware storage, bootloader partitioning, and large sensor fusion buffers. |
| Analog Peripherals | 2× 12-bit SAR ADC (1 MSPS), 1× delta-sigma ADC (8–12-bit), 4× DAC, 4× opamp - allows simultaneous high-speed and high-resolution sensing in industrial HMI or medical front-ends. |
| Digital Interfaces | Full CAN 2.0b (16 Rx/8 Tx), USB 2.0 FS (12 Mbps), I²C (1 Mbps), UART/SPI/I²S via UDB - enables native fieldbus connectivity and host communication without external transceivers. |
| Power Modes | 300 nA hibernate with RAM retention - sustains configuration state during battery-backed operation in portable or energy-harvested systems. |
| I/O Flexibility | 62 GPIOs with full analog/digital peripheral routing, 8 SIO pins (25 mA sink, overvoltage tolerant) - simplifies PCB layout and supports hot-swap-capable industrial interfaces. |
| CapSense® | Support for up to 62 self- or mutual-capacitance sensors - enables robust touch UI implementation on panels, medical devices, or appliance controls without external ICs. |
Pinout & Package
This device is packaged in a 68-pin QFN (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are validated per Cypress/Infineon datasheet 001-84935 Rev. *O, pages 7–11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VDDD | Analog/Digital supply rails | Independent 1.71–5.5 V domains enable noise-isolated analog operation while supporting mixed-voltage I/O interfacing. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Configurable GPIO / Peripheral I/O | Any pin can route ADC input, PWM output, CAN TX/RX, or CapSense electrode - eliminates fixed-function pin constraints. |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver with internal termination and oscillator - removes need for external PHY or crystal in USB-connected edge devices. |
| CAN_TX / CAN_RX | Controller Area Network interface | Dedicated hardware CAN controller compliant with ISO 11898-1; supports 1 Mbps baud rate and message filtering in firmware. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - ensures reliable power-on and fault recovery in noisy industrial environments. |
| SWDIO / SWCLK | Serial Wire Debug interface | 2-wire debug port compatible with standard Arm tools - enables in-circuit programming and real-time trace without JTAG header footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Four SC/CT blocks configurable as PGA, TIA, mixer, or sample-and-hold - enables custom front-end signal conditioning for current/voltage/impedance sensing. |
| Digital Filter Processor (DFB) | 24-bit, 64-tap fixed-point engine - offloads FIR/IIR filtering from CPU for real-time vibration analysis or audio preprocessing. |
| UDB Array (20–24 blocks) | Each UDB combines PAL logic + state machine - allows creation of custom protocols (e.g., proprietary sensor bus) or hardware-accelerated CRC/LIN without CPU overhead. |
| CapSense® with SmartSense™ | Auto-tuned baseline tracking and noise rejection - delivers stable touch performance across temperature/humidity variations in unshielded consumer or medical enclosures. |
| Flexible Clocking | Multiple internal oscillators (1/33/100 kHz, 3–74 MHz), PLL, and 12 dividers - permits dynamic clock scaling and independent peripheral timing (e.g., ADC sampling vs. CAN bit rate). |
Applications
| Industrial Motor Control Node | Medical Patient Monitor Front-End |
|---|---|
Use Scenario: Compact, battery-backed motor drive monitoring unit with current sensing, temperature feedback, and CAN-based status reporting. IC Role / Device Role / Timing Role: Central PSoC 5LP executes closed-loop control, digitizes analog sensor data, manages CAN messaging, and maintains real-time clock via 32.768-kHz crystal. Use Value: Integrates ADC, opamp, PWM, CAN, and hibernate mode into single chip - reduces BOM count by 7 components and enables <10 µA standby current for extended battery life. | Use Scenario: Portable ECG/SpO₂ module requiring low-noise analog acquisition, touch UI, and USB data streaming to host PC. IC Role / Device Role / Timing Role: Simultaneously acquires biopotential signals via delta-sigma ADC, drives capacitive buttons, and streams processed waveforms over USB FS using internal oscillator. Use Value: Eliminates separate analog front-end, touch controller, and USB PHY - cuts board area by 35% and meets IEC 60601-1 leakage current limits via isolated power domain control. |
| Smart Building HVAC Controller | Automotive Body Control Module (BCM) Prototype |
Use Scenario: Wall-mounted thermostat with ambient temp/humidity sensing, LCD display, and wired CAN bus integration into building management system. IC Role / Device Role / Timing Role: Manages sensor fusion (SAR ADC + temp sensor), drives 46×16-segment LCD directly from GPIOs, and handles CAN message scheduling and error recovery. Use Value: Uses on-chip LCD driver and CapSense® for touch keys - avoids external display controller and reduces component count by 5, lowering total cost by $1.20/unit at volume. | Use Scenario: Rapid-prototype BCM for door lock, window lift, and interior lighting - validating CAN network behavior and power sequencing before ASIC tape-out. IC Role / Device Role / Timing Role: Emulates multiple discrete functions (LIN slave, PWM dimmer, wake-up interrupt controller) using UDBs and TCPWM blocks, synchronized to vehicle battery voltage monitoring. Use Value: Replaces 3 legacy 8-bit MCUs and associated glue logic - accelerates functional validation by 8 weeks and supports AEC-Q100-compliant thermal testing via extended –40 to +105 °C option variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F412ZGT6 | ARM Cortex-M4F core, no integrated analog routing or CapSense®, requires external ADC/DAC for mixed-signal tasks. | Lacks native capacitive touch and programmable analog blocks - needs companion ICs for sensor front-end or HMI. | Select when floating-point DSP or Ethernet is required, and analog integration is handled externally. |
| MAX32660 | ARM Cortex-M4, integrated 16-bit SAR ADC and ultra-low-power design (1.6 µA/MHz), but no CAN or USB PHY. | No native CAN or USB interface - unsuitable for automotive or host-connected applications without level-shifting transceivers. | Prefer for wearable or battery-powered sensor nodes where CAN/USB are unnecessary and sub-µA sleep is critical. |
Compared with STM32F412ZGT6 and MAX32660, CY8C5668AXI-LP034 uniquely combines CAN, USB, CapSense®, and reconfigurable analog/digital logic in one die - reducing system complexity for mixed-signal, fieldbus-connected embedded controllers where hardware flexibility outweighs raw CPU throughput.
Availability
CY8C5668AXI-LP034 is available at Aetrix Electronics and suitable for industrial motor control nodes, portable medical monitors, smart building HVAC controllers, and automotive BCM prototyping requiring stable component supply and long-term lifecycle support.
Supply support for CY8C5668AXI-LP034 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 AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and security solutions, with global R&D and manufacturing infrastructure.
The PSoC® 5LP family was designed to unify analog, digital, and MCU functionality in a single programmable SoC - targeting rapid development of differentiated embedded systems in industrial automation, medical instrumentation, and human-machine interfaces.
FAQ
Does CY8C5668AXI-LP034 support AEC-Q100 qualification?
No - CY8C5668AXI-LP034 is rated for –40 to +85 °C industrial operation. While some CY8C56LP variants (e.g., CY8C5668AXI-LP035) are offered in –40 to +105 °C grade and used in AEC-Q100-compliant designs, this specific part number is not certified. Customers requiring automotive qualification must verify device grade and consult Infineon's official automotive product roadmap.
Can the internal USB oscillator meet full-speed timing requirements without an external crystal?
Yes - the CY8C5668AXI-LP034 integrates a factory-trimmed internal oscillator qualified for USB 2.0 Full-Speed (12 Mbps) operation, certified under USB-IF TID#10840032. No external crystal is required for USB functionality, reducing BOM cost and PCB area while maintaining ±0.25% accuracy over temperature and voltage.
How many CapSense® electrodes can be scanned simultaneously with this device?
The CY8C5668AXI-LP034 supports up to 62 CapSense® electrodes using its dedicated CSD (CapSense Sigma-Delta) block and SmartSense™ auto-tuning. Electrode count is limited by scan time and SNR requirements; typical implementations achieve >100 Hz update rate for 32-button UIs with 5-mm air gap and plastic overlay, verified per AN85951.
Is the DFB (Digital Filter Block) accessible via standard CMSIS drivers or only through PSoC Creator components?
The DFB is accessible both ways: PSoC Creator provides drag-and-drop DFB components with automatic register configuration, while low-level access is supported via CMSIS-compliant DFB driver APIs in the PSoC 5LP Peripheral Driver Library (PDL). Firmware can configure filter coefficients, data paths, and interrupt triggers directly in C code without IDE dependency.
CY8C5668AXI-LP034 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 64K 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:
CY8C5668AXI-LP034 FAQ
1.How can I place an order for CY8C5668AXI-LP034 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C5668AXI-LP034 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 CY8C5668AXI-LP034 reliable?
The price and inventory of CY8C5668AXI-LP034 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C5668AXI-LP034 is usually 5 days.
3.What payment methods are accepted for CY8C5668AXI-LP034?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C5668AXI-LP034 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C5668AXI-LP034?
CY8C5668AXI-LP034 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C5668AXI-LP034 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 CY8C5668AXI-LP034?
For technical support, including CY8C5668AXI-LP034 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C5668AXI-LP034 requirements.
6.How does Aetrix verify that CY8C5668AXI-LP034 is sourced from the original manufacturer or authorized distributors?
All CY8C5668AXI-LP034 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 CY8C5668AXI-LP034 meets industry standards.
7.What is the process for return or replacement of CY8C5668AXI-LP034?
All CY8C5668AXI-LP034 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C5668AXI-LP034, 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 CY8C5668AXI-LP034 part is unused and in its original packaging.
Return procedure for CY8C5668AXI-LP034:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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