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Infineon Technologies CY8C3445AXE-107
- Part No.:
- CY8C3445AXE-107
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C3445AXE-107.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,414
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Product details
Overview
CY8C3445AXE-107 from Infineon Technologies (acquired Cypress Semiconductor) is an AEC-Q100 qualified automotive-grade PSoC® 3 programmable system-on-chip integrating an 8051 CPU core, 64 KB flash, 8 KB SRAM, 2 KB EEPROM, 24-channel DMA, full CAN 2.0b interface, USB 2.0 Full-Speed peripheral, and configurable analog/digital peripherals. It operates from 1.71 V to 5.5 V, supports –40 °C to +125 °C extended temperature range, and delivers up to 50 MHz performance with internal PLL. Used in automotive body control modules requiring mixed-signal integration and firmware-upgradable functionality.
For engineers reviewing the CY8C3445AXE-107 datasheet, CY8C3445AXE-107 pinout, CY8C3445AXE-107 application, or CY8C3445AXE-107 equivalent, key selection criteria include AEC-Q100 compliance, on-chip CAN/USB support, delta-sigma ADC resolution (12-bit, 192 ksps), CapSense® GPIO capability, and 100-pin TQFP packaging for high I/O count automotive designs.
Technical Context
The CY8C3445AXE-107 implements a single-cycle 8051 microcontroller core with 50 MHz max clocking via internal PLL, supported by 512-byte flash cache and ECC-protected configuration storage. Its digital subsystem centers on 24 Universal Digital Blocks (UDBs) enabling reconfigurable logic, timers, PWMs, CRC, PRS, LIN, and quadrature decoding - all routed flexibly to any of 62 GPIOs or 8 SIOs.
Analog resources include a 12-bit delta-sigma ADC (192 ksps, 66 dB SINAD, ±1 LSB INL/DNL), four comparators (95 ns response), two opamps (25 mA drive), dual SC/CT blocks (configurable as PGA/TIA/mixer), and four 8-bit DACs (8 Msps IDAC / 1 Msps VDAC). All analog signals route through a dedicated analog bus supporting up to 62 analog input channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz; enables deterministic real-time control without instruction pipelining overhead. |
| Flash Memory | 64 KB program flash with 100,000 write cycles and 20-year data retention; supports secure firmware updates and bootloader operation. |
| ADC Performance | 12-bit delta-sigma ADC at 192 ksps with 66 dB SINAD and ±1 LSB INL/DNL; suitable for precision sensor signal acquisition in harsh environments. |
| CAN Interface | Full CAN 2.0b compliant with 16 Rx and 8 Tx buffers; provides native automotive network connectivity without external transceiver logic. |
| Operating Temperature | –40 °C to +125 °C extended range; validated per AEC-Q100 Grade 0 requirements for under-hood automotive applications. |
| I/O Count | 62 GPIOs + 8 SIOs + 2 USBIOs in 100-pin TQFP; enables direct connection to diverse sensors, actuators, and display elements. |
| Power Modes | 200 nA hibernate mode with RAM retention; allows ultra-low-power wake-on-event operation in always-on vehicle subsystems. |
Pinout & Package
Package: 100-pin Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDD | Analog & Digital Supply | Separate 1.71–5.5 V supplies enable noise isolation between analog and digital domains for high-precision measurements. |
| P0[0]–P0[7] | General-Purpose I/O | Configurable as GPIO, analog input, CapSense®, LCD segment, or USB D+/D–; supports Schmitt-trigger inputs and programmable drive strength. |
| CAN_TX, CAN_RX | CAN Bus Interface | Dedicated differential pair for CAN physical layer signaling; connects directly to external CAN transceiver (e.g., TJA1042). |
| USB_D+, USB_D– | USB 2.0 Full-Speed PHY | On-die USB transceiver compliant with USB-IF TID#40770053; requires no external PHY for basic device enumeration and data transfer. |
| XRES | External Reset Input | Active-low asynchronous reset pin; asserts internal POR and clears CPU state, registers, and memory upon falling edge. |
| JTAG_TCK, TMS, TDI, TDO | Debug Interface | 4-wire JTAG interface supporting boundary scan, flash programming, and real-time debugging via standard ICE tools. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable UDB Array | 24 universal digital blocks enable hardware-level customization of timers, PWMs, CRC, LIN, PRS, and quadrature decoders - reducing firmware load and latency. |
| Delta-Sigma ADC | 12-bit resolution at 192 ksps with 66 dB SINAD and programmable gain (×0.25 to ×16); eliminates need for external signal conditioning in thermocouple or pressure sensor interfaces. |
| CapSense® Support | Capacitive touch sensing on any GPIO without dedicated hardware; enables cost-effective human-machine interface (HMI) implementation in automotive control panels. |
| Integrated CAN + USB | Native CAN 2.0b and USB 2.0 FS controllers share no external components; simplifies ECU architecture and reduces BOM count in gateway or diagnostic modules. |
| AEC-Q100 Grade 0 | Qualified for –40 °C to +125 °C operation with full electrical characterization and reliability testing; meets automotive functional safety readiness requirements. |
Applications
| Automotive Body Control Module | Automotive Diagnostic Tool |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in modern vehicles. IC Role / Device Role / Timing Role: Primary MCU managing sensor inputs (switches, Hall effect), actuator outputs (relays, motors), and LIN/CAN communication with other ECUs. Use Value: Integrated 62 GPIOs and configurable UDBs eliminate discrete logic and reduce PCB layers; CAN+LIN support enables seamless integration into existing vehicle networks. |
Use Scenario: Handheld OBD-II scanner performing live PID reading, fault code retrieval, and ECU reprogramming in service bays. IC Role / Device Role / Timing Role: Host controller interfacing with vehicle CAN bus and PC via USB; executing protocol stacks (ISO 15765, SAE J2534) in firmware. Use Value: On-chip USB 2.0 FS and CAN 2.0b eliminate external transceivers and PHYs; 64 KB flash stores multiple vehicle-specific diagnostic firmware images. |
| Automotive HVAC Control Unit | Advanced Driver Assistance System (ADAS) Sensor Interface |
|
Use Scenario: Climate control panel with touch-sensitive buttons, temperature sensing, fan speed regulation, and display driving. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring analog temp/humidity data, processing CapSense® inputs, generating PWM fan control, and driving segmented LCD. Use Value: Delta-sigma ADC and CapSense® on shared GPIOs reduce component count; LCD direct-drive capability supports 46×16 segment displays without external drivers. |
Use Scenario: Front-end signal conditioner for ultrasonic parking sensors or radar pre-processing in ADAS domain controllers. IC Role / Device Role / Timing Role: High-bandwidth analog front-end digitizing echo return signals, applying digital filtering (via UDB-based PRS/CRC), and forwarding processed data over CAN. Use Value: 192 ksps ADC sampling and 95 ns comparator response enable precise time-of-flight measurement; configurable SC/CT blocks implement TIA stages for piezoelectric transducer biasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 128 KB flash, 20 KB SRAM, CAN FD support, no integrated USB or CapSense® | Better suited for safety-critical ASIL-B applications with hardware FPU and memory protection unit (MPU) | Select when CAN FD bandwidth or ISO 26262 compliance outweighs need for capacitive touch or USB device functionality. |
| Renesas RL78/F14 | RL78 core, 512 KB flash, 32 KB RAM, CAN 2.0b only, no USB, lower power (120 µA/MHz), no configurable analog blocks | Optimized for low-cost, ultra-low-power body electronics where analog flexibility is secondary to energy efficiency | Select for cost-sensitive, battery-powered modules requiring long-term hibernate operation but minimal analog signal processing. |
Compared with NXP S32K144 and Renesas RL78/F14, CY8C3445AXE-107 uniquely combines CAN 2.0b, USB 2.0 FS, and configurable analog/digital fabric in a single AEC-Q100 device - enabling rapid prototyping and late-stage feature iteration without hardware redesign.
Availability
CY8C3445AXE-107 is available at Aetrix Electronics and suitable for automotive body control modules, diagnostic tools, HVAC systems, and ADAS sensor interfaces requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CY8C3445AXE-107 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 the PSoC® portfolio. Infineon is a global semiconductor leader focused on power systems, automotive electronics, and security solutions.
The CY8C34 family belongs to Infineon's automotive-qualified PSoC® 3 platform, designed specifically for mixed-signal integration in body electronics, gateway modules, and driver interface systems where firmware-defined functionality replaces fixed-function ASICs.
FAQ
Is CY8C3445AXE-107 pin-compatible with other CY8C34xx devices?
Yes - CY8C3445AXE-107 uses the 100-pin TQFP package common across CY8C3445 variants. Pin functions are consistent within the same package option, enabling drop-in replacement for other CY8C3445x-107 parts differing only in flash size or temperature grade. Always verify I/O voltage domains and peripheral enablement in the specific device's ordering information table.
Does CY8C3445AXE-107 require an external crystal for USB operation?
No - USB 2.0 Full-Speed operation uses the internal IMO (Internal Main Oscillator) calibrated to ±0.25% accuracy across voltage and temperature, certified per USB-IF TID#40770053. An external crystal is optional and used only for higher-precision timing needs such as RTC or CAN bit timing stability.
Can CapSense® be implemented on all GPIO pins of CY8C3445AXE-107?
Yes - CapSense® is supported on any GPIO pin except those assigned to opamp outputs (P1[0]–P1[3]), as noted in the datasheet. All 62 GPIOs are fully routable to the CapSense® CSD block, enabling flexible layout of touch buttons, sliders, and proximity sensors without dedicated pins.
What debug interfaces does CY8C3445AXE-107 support?
CY8C3445AXE-107 supports JTAG (4-wire), SWD (2-wire), and SWV for real-time trace. It includes eight address breakpoints, one data breakpoint, and a 4 KB instruction trace buffer. Debug access remains functional in all power modes except hibernate, enabling full visibility during low-power validation.
CY8C3445AXE-107 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 3 CY8C34xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART, USB
- Peripherals:
- CapSense, DMA, POR, PWM, WDT
- Number of I/O:
- 62
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3445AXE-107 FAQ
1.How can I place an order for CY8C3445AXE-107 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3445AXE-107 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 CY8C3445AXE-107 reliable?
The price and inventory of CY8C3445AXE-107 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3445AXE-107 is usually 5 days.
3.What payment methods are accepted for CY8C3445AXE-107?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3445AXE-107 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3445AXE-107?
CY8C3445AXE-107 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3445AXE-107 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 CY8C3445AXE-107?
For technical support, including CY8C3445AXE-107 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3445AXE-107 requirements.
6.How does Aetrix verify that CY8C3445AXE-107 is sourced from the original manufacturer or authorized distributors?
All CY8C3445AXE-107 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 CY8C3445AXE-107 meets industry standards.
7.What is the process for return or replacement of CY8C3445AXE-107?
All CY8C3445AXE-107 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3445AXE-107, 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 CY8C3445AXE-107 part is unused and in its original packaging.
Return procedure for CY8C3445AXE-107:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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