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Infineon Technologies CY8C3445AXA-104
- Part No.:
- CY8C3445AXA-104
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C3445AXA-104.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,333
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Product details
Overview
CY8C3445AXA-104 from Cypress Semiconductor is an AEC-Q100 qualified automotive-grade PSoC® 3 programmable system-on-chip 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 full CAN 2.0b, USB 2.0 Full-Speed, and delta-sigma ADC (12-bit, 192 ksps). It operates from 1.71 V to 5.5 V across –40 °C to +125 °C and is packaged in 100-pin TQFP for engine control, body electronics, and ADAS sensor interface applications.
For engineers reviewing the CY8C3445AXA-104 datasheet, CY8C3445AXA-104 pinout, CY8C3445AXA-104 application, or CY8C3445AXA-104 equivalent, this device supports rapid system integration via PSoC Creator™ with routable GPIOs, on-chip CapSense®, LCD direct drive, and mixed-signal flexibility for last-minute firmware-based design changes without hardware revision.
Technical Context
The CY8C3445AXA-104 implements a single-cycle 8051 microcontroller core with 50 MHz max operation, 512-byte flash cache, and ECC-protected flash configuration storage. Its digital subsystem features 24 universal digital blocks (UDBs) supporting programmable logic, timers, PWMs, CRC, PRS, LIN, and quadrature decoding - all routed flexibly via DSI to any of 62 GPIOs.
Analog resources include a 12-bit delta-sigma ADC (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 DACs (8-bit IDAC/VDAC at 8 Msps/1 Msps). All analog signals route through a dedicated analog interconnect to any GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz; enables deterministic real-time control with multiply/divide instructions. |
| Memory | 64 KB Flash (100k write cycles, 20 yr retention), 8 KB SRAM, 2 KB EEPROM (1M cycles); supports secure firmware updates and data logging. |
| Analog ADC | Configurable delta-sigma ADC: 8–12-bit resolution, 192 ksps max sample rate, 66 dB SINAD in 12-bit mode; suitable for precision thermocouple and ultrasonic signal acquisition. |
| Digital Peripherals | Full CAN 2.0b (16 Rx/8 Tx buffers), USB 2.0 FS (12 Mbps, TID#40770053 certified), I²C multimaster, 4×16-bit timer/PWM blocks; meets automotive communication stack requirements. |
| Power & Temp | 1.71–5.5 V supply range; 1 µA sleep mode with RTC/LVD interrupt; –40 °C to +125 °C extended temperature grade; AEC-Q100 Grade 0 compliant. |
| I/O System | 62 GPIOs + 8 SIO + 2 USBIO; any GPIO supports CapSense®, LCD segment drive (46×16), analog input/output, or digital peripheral routing; 25 mA sink on SIO pins. |
| Clocking | Internal IMO (3–62 MHz), crystal oscillator (4–25 MHz), PLL (up to 50 MHz), 32.768 kHz RTC oscillator, and low-power ILO (1/33/100 kHz); enables precise timing and power-aware clock gating. |
Pinout & Package
Package: 100-pin 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 Power Supply | Separate 1.71–5.5 V domains enable noise isolation between analog and digital subsystems; VDDA must be ≥ VDDD for ADC accuracy. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | General-Purpose I/O | All 62 GPIOs support configurable drive modes (strong/pull-up/pull-down/open-drain), Schmitt-trigger inputs, and maskable IRQ; each routable to analog or digital peripherals. |
| USB_DP / USB_DM | USB 2.0 Full-Speed Interface | Dedicated differential pair for certified 12 Mbps USB peripheral operation; internal PHY eliminates external transceiver requirement. |
| CAN_TX / CAN_RX | CAN 2.0b Physical Layer Interface | Direct connection to external CAN transceiver; supports 1 Mbps baud rate and integrated message buffering (16 Rx, 8 Tx). |
| XIN / XOUT | Crytal Oscillator Input/Output | Supports 4–25 MHz crystal for high-precision timing; required for CAN bit timing accuracy and USB suspend/resume synchronization. |
| SWDIO / SWCLK | Serial Wire Debug Interface | 2-wire JTAG alternative enabling programming, breakpoint debugging, and 4 KB instruction trace without pin overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Subsystem | Delta-sigma ADC (12-bit, 192 ksps), dual opamps (25 mA), SC/CT blocks as PGA/TIA/mixer, and 4 DACs enable sensor front-end integration without external signal conditioning. |
| Firmware-Defined Peripherals | UDB array + DSI routing allows dynamic reconfiguration of digital functions (UART, SPI, LIN, PWM, PRS) via firmware - no hardware change needed for protocol updates or feature additions. |
| AEC-Q100 Automotive Compliance | Qualified to Grade 0 (–40 °C to +125 °C), including HTOL, ESD, and latch-up testing; validated for under-hood and safety-critical body control modules. |
| CapSense® Integration | Capacitive touch sensing supported on all GPIOs with built-in CSD block; eliminates external touch controller and reduces BOM cost in human-machine interface designs. |
| Low-Power Operation | 200 nA hibernate mode with RAM retention and 1 µA sleep mode with RTC/LVD wake-up; extends battery life in always-on automotive modules like keyless entry receivers. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor signals in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Central MCU executing closed-loop fuel injection and ignition timing algorithms using synchronized ADC sampling and PWM-driven coil drivers. Use Value: Integrated 12-bit ADC with <100 µV offset and 95 ns comparators enable sub-degree crank angle resolution; CAN 2.0b ensures deterministic communication with transmission and ABS ECUs. |
Use Scenario: Centralized control of door locks, window lifts, lighting, and climate actuators in premium vehicle platforms. IC Role / Device Role / Timing Role: Mixed-signal hub managing analog sensor inputs (temperature, humidity), digital switches, motor drivers, and LIN/CAN gateways. Use Value: 62 routable GPIOs eliminate external I/O expanders; CapSense® on GPIOs enables seamless touch-sensitive interior panels without added controllers. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Automotive Infotainment Front-End |
|
Use Scenario: Aggregation and preprocessing of radar, ultrasonic, and camera proximity sensor data before forwarding to domain controller. IC Role / Device Role / Timing Role: Signal acquisition node performing analog front-end conditioning, time-of-flight calculation, and CAN message formatting. Use Value: Delta-sigma ADC supports ultrasonic echo digitization up to 192 ksps; UDB-based PRS generator creates precise pulse trains for time-of-flight measurement. |
Use Scenario: Audio codec interface, display backlight control, and capacitive touch overlay management in digital instrument clusters and center consoles. IC Role / Device Role / Timing Role: Peripheral manager handling I²C audio codec comms, PWM dimming for RGB LEDs, and CapSense® for gesture recognition. Use Value: Four 8-bit IDACs drive LED strings directly; LCD direct drive supports 46×16 segment displays; USB FS enables firmware OTA updates via service port. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon XMC4504-F100K1024 AC | ARM Cortex-M4F core, 120 MHz, 1024 KB Flash, no integrated CapSense® or LCD driver; requires external analog front-end for sensor interfaces. | Better suited for high-throughput motor control with FPU and EtherCAT; lacks native capacitive touch and ultrasonic ADC capability. | Select when floating-point math, Ethernet, or multi-axis servo control dominates over mixed-signal integration. |
| NXP S32K144HAT0MLHT | ARM Cortex-M4F, 112 MHz, 1 MB Flash, AEC-Q100 Grade 1 (–40 °C to +125 °C), includes CAN FD and HSE security engine; no integrated delta-sigma ADC or CapSense®. | Targeted at gateway and secure boot applications; requires external ADC for precision sensor acquisition and external touch controller for HMI. | Prefer for ISO 26262 ASIL-B systems requiring hardware security and CAN FD bandwidth, not for analog-intensive sensor nodes. |
Compared with XMC4504 and S32K144, the CY8C3445AXA-104 delivers superior analog integration (delta-sigma ADC, opamps, SC/CT blocks) and firmware-reconfigurable peripherals in a smaller footprint - ideal for cost-sensitive, space-constrained automotive sensor nodes where mixed-signal consolidation reduces BOM count and validation effort.
Availability
CY8C3445AXA-104 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor hubs, and infotainment front-ends requiring stable component supply across automotive production lifecycles.
Supply support for CY8C3445AXA-104 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, programmable mixed-signal ICs for automotive, industrial, and consumer applications, with emphasis on integration, reliability, and development efficiency.
The CY8C34 Automotive Family targets AEC-Q100-compliant embedded control systems requiring configurable analog/digital peripherals, low-power operation, and rapid firmware-based iteration - especially in powertrain, chassis, and body electronics.
FAQ
What development tools are required to program and debug the CY8C3445AXA-104?
PSoC Creator™ IDE is mandatory for schematic-based design, component configuration, and code generation. Programming and debugging require a MiniProg3 or KitProg debugger supporting SWD/JTAG; USBFS functionality requires the internal oscillator calibrated against an external crystal for TID certification compliance.
Does the CY8C3445AXA-104 support hardware encryption or secure boot?
No. The CY8C3445AXA-104 provides flash security features (read protection, secure boot vector locking, and write protection) but lacks dedicated cryptographic accelerators or hardware root-of-trust. Secure boot relies on firmware-enforced signature verification using SHA-1/SHA-256 in software.
Can all 62 GPIOs be used simultaneously for analog input acquisition?
Yes - all 62 GPIOs connect to the analog interconnect bus and can serve as analog inputs. However, simultaneous sampling is limited by the delta-sigma ADC's 192 ksps maximum aggregate throughput; channel sequencing and sample-and-hold timing must be configured per application requirements.
Is the USB 2.0 Full-Speed interface certified for automotive use?
Yes. The USB peripheral is TID-certified (#40770053) for USB-IF compliance and qualified for automotive environments per AEC-Q100. It operates using the internal IMO oscillator, eliminating need for external USB clock crystal while maintaining ±0.25% accuracy over temperature and voltage.
CY8C3445AXA-104 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
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3445AXA-104 FAQ
1.How can I place an order for CY8C3445AXA-104 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3445AXA-104 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 CY8C3445AXA-104 reliable?
The price and inventory of CY8C3445AXA-104 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3445AXA-104 is usually 5 days.
3.What payment methods are accepted for CY8C3445AXA-104?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3445AXA-104 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3445AXA-104?
CY8C3445AXA-104 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3445AXA-104 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 CY8C3445AXA-104?
For technical support, including CY8C3445AXA-104 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3445AXA-104 requirements.
6.How does Aetrix verify that CY8C3445AXA-104 is sourced from the original manufacturer or authorized distributors?
All CY8C3445AXA-104 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 CY8C3445AXA-104 meets industry standards.
7.What is the process for return or replacement of CY8C3445AXA-104?
All CY8C3445AXA-104 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3445AXA-104, 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 CY8C3445AXA-104 part is unused and in its original packaging.
Return procedure for CY8C3445AXA-104:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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