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Infineon Technologies CY8C4145AXQ-S433
- Part No.:
- CY8C4145AXQ-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4145AXQ-S433.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,356
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Product details
Overview
CY8C4145AXQ-S433 from Infineon is a programmable 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing, 12-bit 1-Msps SAR ADC, and three reconfigurable serial communication blocks (I²C/SPI/UART). It supports deep-sleep operation at 2.5 µA and drives up to 36 GPIOs in analog/digital/CAPSENSE™ modes - used in touch-enabled industrial HMI and battery-powered sensor nodes.
For engineers reviewing the CY8C4145AXQ-S433 datasheet, CY8C4145AXQ-S433 pinout, CY8C4145AXQ-S433 application, or CY8C4145AXQ-S433 equivalent, key selection criteria include its integrated sigma-delta CAPSENSE™ SNR (>5:1), programmable analog blocks (opamps, comparators, IDACs), TCPWM timing flexibility, and ModusToolbox™-supported development flow for rapid touch + control system integration.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with configurable analog (CTB opamps, SAR ADC, CSD block) and digital (TCPWM, SCB, PLD) peripherals routed via a flexible interconnect matrix. Its clock system combines ±2% IMO, 32 kHz ILO, and WCO for precision timing across sleep/wake states.
Capacitive sensing uses hardware-accelerated sigma-delta modulation with SmartSense™ auto-tuning, enabling robust water-tolerant touch detection without firmware calibration. All GPIOs support CAPSENSE™, analog input buffering, or programmable drive strength - eliminating external signal conditioning in many HMI designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply enables real-time control loop execution in motor or sensor fusion applications. |
| Memory | 64 KB flash (with read accelerator) + 8 KB SRAM - sufficient for embedded GUI logic, CAPSENSE™ firmware, and communication stacks without external memory. |
| ADC | 12-bit SAR ADC @ 1 Msps with channel sequencer & signal averaging - supports simultaneous multi-channel sensor acquisition with noise reduction. |
| CAPSENSE™ | Sigma-delta CSD block with >5:1 SNR and automatic hardware tuning - delivers reliable touch detection under wet or noisy EMI conditions. |
| Power | 1.71–5.5 V operation; Deep Sleep current = 2.5 µA - enables years of operation on coin-cell batteries in portable touch interfaces. |
| GPIO | 36 programmable pins with configurable drive modes, slew rates, and analog/digital/CAPSENSE™ assignment - reduces BOM count by consolidating signal routing and sensing functions. |
| Serial Interfaces | 3 × SCBs supporting I²C/SPI/UART concurrently - allows independent peripheral control (e.g., display, sensor, host MCU) without resource contention. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | 1.71–5.5 V input; powers digital core, analog blocks, and I/O; requires local 100 nF decoupling. |
| VSS | Digital ground | Reference return path for digital logic and SCB peripherals; must be low-impedance and separated from analog ground where noise-sensitive design is required. |
| P0[0]–P0[7] | General-purpose I/O | Support CAPSENSE™, analog input (with opamp buffering), or digital PWM output; configurable drive strength (0.5–20 mA) and slew rate. |
| P1[0]–P1[7] | General-purpose I/O | Same capabilities as P0; P1[2]/P1[3] support SWD debug interface; P1[4]/P1[5] support WCO crystal connection. |
| XRES | Active-low reset input | Asynchronous reset pin; internal pull-up; accepts 1.2–5.5 V logic levels; debounced internally for reliable power-on reset. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug interface for programming and real-time debugging; no external pull-ups required. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two CTB opamps (deep-sleep capable), two low-power comparators, and two IDACs enable mixed-signal signal conditioning entirely on-chip - eliminates discrete opamp and DAC ICs in sensor front-ends. |
| Reconfigurable Digital Logic | PLD blocks perform Boolean operations (AND/OR/XOR) on port inputs/outputs - implements custom glue logic (e.g., interrupt arbitration, status encoding) without CPU intervention. |
| TCPWM Flexibility | Five 16-bit Timer/Counter/PWM blocks with center-aligned, edge-aligned, and pseudo-random modes - supports precise motor phase control and LED dimming with hardware-triggered kill signals. |
| LCD Segment Drive | Direct GPIO-based segment driving capability - enables simple character or segmented LCD displays without dedicated LCD controller IC. |
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration adjusts baseline, sensitivity, and noise thresholds dynamically - removes manual tuning effort and improves field reliability across temperature/humidity variations. |
Applications
| Industrial HMI Panel | Smart Home Appliance Control |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panel with ambient light and EMI exposure. IC Role / Device Role / Timing Role: Main controller executing CAPSENSE™ scan, interpreting button/slider gestures, managing UART communication to PLC, and updating local LCD display. Use Value: Integrated sigma-delta CAPSENSE™ achieves >5:1 SNR and water tolerance - maintains responsiveness during cleaning or condensation without mechanical buttons. |
Use Scenario: Touch-sensitive cooktop or oven control with proximity wake-up and multi-gesture recognition. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ + MCU subsystem handling real-time touch processing, thermal monitoring via SAR ADC, and I²C communication to main application processor. Use Value: Deep Sleep current of 2.5 µA enables always-on proximity detection with <1 µA average system power - extends battery life in cordless remote variants. |
| Portable Medical Sensor Node | Automotive Interior Switch |
Use Scenario: Handheld pulse oximeter with capacitive touch controls and analog front-end for photodiode signal conditioning. IC Role / Device Role / Timing Role: Signal acquisition node using opamp-buffered ADC inputs, CAPSENSE™ for UI, and SPI to transmit data to Bluetooth SoC. Use Value: On-chip opamps operate in Deep Sleep mode - enables ultra-low-power wake-on-touch while preserving analog signal path readiness. |
Use Scenario: Touch-sensitive door lock or seat control switch in automotive cabin with high EMC immunity requirements. IC Role / Device Role / Timing Role: CAPSENSE™ subsystem with hardware-based noise rejection and comparator-triggered PWM for haptic feedback actuation. Use Value: SmartSense™ auto-tuning adapts to varying dielectric conditions (glove vs. bare finger, moisture) - ensures consistent activation threshold across environmental conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller with integrated capacitive sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4045LQI-S412 | Lower memory (32 KB flash, 4 KB SRAM); no TCPWM kill signal; 32-pin QFN package. | Suitable for cost-sensitive, space-constrained touch-only applications without motor control or complex timing. | Select when CAPSENSE™ is primary function and system logic fits within reduced memory footprint. |
| STM32G031K8T6 | No integrated CAPSENSE™; requires external touch controller or software-based capacitive sensing; higher CPU clock (64 MHz) but no programmable analog blocks. | Better suited for general-purpose control with basic GPIO touch or where analog signal chain is handled externally. | Choose only if existing STM32 toolchain familiarity outweighs loss of hardware-accelerated touch performance and analog integration. |
Compared with CY8C4145AXQ-S433, CY8C4045LQI-S412 trades memory and TCPWM features for lower cost and smaller footprint, while STM32G031K8T6 lacks hardware CAPSENSE™ and programmable analog - requiring additional components and firmware effort to match touch robustness and signal conditioning capability.
Availability
CY8C4145AXQ-S433 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, and portable medical sensor nodes requiring stable component supply, long-term lifecycle assurance, and full production traceability.
Supply support for CY8C4145AXQ-S433 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 German semiconductor manufacturer specializing in power management, automotive MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
CY8C4145AXQ-S433 belongs to the PSoC™ 4100S product line - designed specifically for embedded systems requiring integrated capacitive touch, programmable analog, and low-power control in a single chip for human-interface and sensor-edge applications.
FAQ
Does CY8C4145AXQ-S433 support USB connectivity?
No, CY8C4145AXQ-S433 does not include a USB PHY or controller. It provides three SCB modules configurable as I²C, SPI, or UART only. For USB host/device functionality, an external USB-to-UART bridge (e.g., CP2102) or migration to a PSoC™ 4 BLE or PSoC™ 6 device is required.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.x+) and legacy PSoC™ Creator (v4.4) for CY8C4145AXQ-S433. ModusToolbox™ provides CMSIS-PACK-based BSPs, PDL drivers, CAPSENSE™ Tuner, and code examples targeting GCC/ARMCLANG toolchains - all validated for this specific silicon revision.
Can the SAR ADC perform simultaneous sampling on multiple channels?
No, the 12-bit SAR ADC has a single conversion engine and uses a hardware channel sequencer for time-multiplexed sampling. It supports burst mode with signal averaging per channel but cannot acquire two channels at identical timestamps - true simultaneous sampling requires external dual ADCs or PSoC™ 6 devices with dual SARs.
Is the WCO oscillator mandatory for CAPSENSE™ operation?
No, the WCO is optional. CAPSENSE™ operates using the internal IMO or ILO clocks. The WCO (32 kHz) is only required when ultra-low-jitter timing is needed for advanced noise rejection algorithms or when synchronizing CAPSENSE™ scans with external events - most designs use IMO with SmartSense™ auto-tuning.
CY8C4145AXQ-S433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR, 16x12b Sigma-Delta; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4145AXQ-S433 FAQ
1.How can I place an order for CY8C4145AXQ-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4145AXQ-S433 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 CY8C4145AXQ-S433 reliable?
The price and inventory of CY8C4145AXQ-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4145AXQ-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4145AXQ-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4145AXQ-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4145AXQ-S433?
CY8C4145AXQ-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4145AXQ-S433 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 CY8C4145AXQ-S433?
For technical support, including CY8C4145AXQ-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4145AXQ-S433 requirements.
6.How does Aetrix verify that CY8C4145AXQ-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4145AXQ-S433 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 CY8C4145AXQ-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4145AXQ-S433?
All CY8C4145AXQ-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4145AXQ-S433, 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 CY8C4145AXQ-S433 part is unused and in its original packaging.
Return procedure for CY8C4145AXQ-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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