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Infineon Technologies CY8C4145AZQ-S433
- Part No.:
- CY8C4145AZQ-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4145AZQ-S433.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,333
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Product details
Overview
CY8C4145AZQ-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 delivers best-in-class SNR (>5:1) for water-tolerant touch interfaces in industrial HMI and consumer control panels.
For engineers reviewing the CY8C4145AZQ-S433 datasheet, CY8C4145AZQ-S433 pinout, CY8C4145AZQ-S433 application, or CY8C4145AZQ-S433 equivalent, this device is selected for embedded systems requiring mixed-signal reconfigurability, low-power capacitive sensing, and runtime peripheral flexibility without external analog components.
Technical Context
The CY8C4145AZQ-S433 integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (two opamps, two comparators, 12-bit SAR ADC, CSD-based 10-bit CapSense ADC) and digital resources (five TCPWM blocks, three SCBs, Smart I/O). Its clock system includes ±2% IMO, 32 kHz ILO, and WCO support - enabling precise timing across sleep/wake transitions.
Analog signal chain flexibility is enabled by reconfigurable CTB opamps supporting high-drive external and high-bandwidth internal modes, plus ADC input buffering. Capacitive sensing uses sigma-delta modulation with hardware-accelerated SmartSense auto-tuning, eliminating manual calibration in production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply enables real-time math in motor control or sensor fusion. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for ModusToolbox™ middleware, CAPSENSE™ PDL, and custom firmware with OTA update headroom. |
| ADC | 12-bit 1-Msps SAR with sequencer & averaging - supports simultaneous multi-channel acquisition (e.g., temperature + voltage monitoring) with noise reduction. |
| CapSense | Sigma-delta CSD with >5:1 SNR and water tolerance - enables reliable touch buttons/sliders on wet or gloved-user surfaces without shielding. |
| Power | 1.71–5.5 V supply; 2.5 µA Deep Sleep current - extends battery life in portable HMIs and IoT edge nodes with periodic wake-up sensing. |
| GPIO | 36 programmable pins with CAPSENSE™/analog/digital capability - eliminates external muxing; any pin supports touch, ADC input, or PWM output. |
| Serial Interfaces | 3 × SCBs - each independently configurable as I²C, SPI, or UART - simplifies connectivity to displays, sensors, and host MCUs without pin conflict. |
Pinout & Package
Package: 44-lead TQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O power supply | Accepts 1.71–5.5 V; powers all digital logic, analog blocks, and GPIO drivers. |
| VSS | Digital ground reference | Primary return path for digital circuitry; must be low-impedance and separated from analog ground where precision sensing is used. |
| XRES | Active-low reset input | Asynchronous reset pin; internal pull-up ensures reliable startup without external component. |
| SWDCLK / SWDIO | ARM Serial Wire Debug interface | Enables programming and real-time debugging via standard CMSIS-DAP tools; no dedicated debug header required. |
| P0[0]–P0[7] | General-purpose I/O with CAPSENSE™ | Supports mutual/capacitive sensing, analog input, or digital PWM - configured per-pin in PSoC Creator or ModusToolbox™. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two CTB opamps with dual drive modes and comparator functionality - reduce BOM count by replacing discrete opamp/comparator ICs in sensor front-ends. |
| SmartSense Auto-Tuning | Hardware-accelerated capacitance calibration - eliminates factory tuning steps and compensates for PCB aging, humidity, and temperature drift. |
| Reconfigurable SCBs | Three independent serial blocks, each runtime-switchable between I²C/SPI/UART - enables dynamic protocol adaptation in field-upgraded devices. |
| Deep Sleep with Active Analog | 2.5 µA system current while maintaining opamp/ADC/comparator operation - allows continuous low-power touch wake-up detection without full MCU wake. |
| LCD Segment Drive | Direct GPIO-based segment driving - supports up to 28-segment static LCD without external driver IC in cost-sensitive display applications. |
Applications
| Industrial Control Panel | Consumer Appliance Interface |
|---|---|
|
Use Scenario: Touch-enabled operator panel for HVAC controllers with environmental sensor inputs and relay outputs. IC Role / Device Role / Timing Role: Main system controller handling CAPSENSE™ button scanning, 12-bit ADC temperature/humidity sampling, and TCPWM fan speed control. Use Value: Single-chip integration replaces MCU + touch controller + analog front-end, reducing PCB area by 35% and bill-of-materials cost by $0.82/unit. |
Use Scenario: Wash-resistant touch interface on washing machine door with water splash detection. IC Role / Device Role / Timing Role: Dedicated capacitive sensing subsystem using sigma-delta CSD and SmartSense to distinguish intentional touch from water droplets. Use Value: >5:1 SNR and hardware-based water rejection eliminate false triggers during cycle operation, improving user experience and UL certification compliance. |
| Medical Patient Monitor UI | Smart Home Thermostat |
|
Use Scenario: Low-power bedside monitor with touch slider for brightness control and analog sensor readout (SpO₂, temperature). IC Role / Device Role / Timing Role: System-on-chip managing ultra-low-power Deep Sleep wake-up via touch, SAR ADC acquisition, and SPI communication to display controller. Use Value: 2.5 µA Deep Sleep current extends coin-cell battery life to >2 years while maintaining responsive touch wake-up latency <15 ms. |
Use Scenario: Battery-powered thermostat with ambient temperature sensing, LCD display, and BLE connectivity via UART bridge. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ slider, 12-bit ADC thermal measurement, and UART-to-BLE module interface. Use Value: Integrated SCB UART eliminates level-shifter and logic buffer, reducing standby power by 18 µA versus discrete solution. |
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 |
|---|---|---|---|
| CY8C4146AZQ-S433 | Same package and architecture, but with 128 KB flash and 16 KB SRAM - no change in analog/digital peripheral count or clock specs. | Required when firmware size exceeds 64 KB or when future feature expansion (e.g., Bluetooth stack) demands more memory headroom. | Select only if memory growth is confirmed; identical pinout and toolchain compatibility enable drop-in upgrade path. |
| CY8C4045LQI-S412 | Lower-cost variant with 32 KB flash, 4 KB SRAM, no WCO, and reduced GPIO count (28 pins); same CAPSENSE™ engine and 12-bit SAR ADC. | Suitable for simpler touch-only applications without sensor fusion or complex communication stacks. | Choose for cost-sensitive volume designs where memory and crystal oscillator are unnecessary - not pin-compatible due to 40-pin QFN vs. 44-pin TQFP. |
Compared with CY8C4145AZQ-S433, CY8C4146AZQ-S433 offers scalable memory without peripheral trade-offs, while CY8C4045LQI-S412 reduces cost and footprint at the expense of memory headroom and crystal support - making it appropriate only for minimal-feature implementations.
Availability
CY8C4145AZQ-S433 is available at Aetrix Electronics and suitable for industrial HMI, consumer appliance interfaces, medical patient monitors, and smart home thermostats requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4145AZQ-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 ICs, and programmable embedded systems, with global R&D centers and ISO/TS 16949-certified manufacturing.
CY8C4145AZQ-S433 belongs to the PSoC™ 4100S family - designed specifically for cost-sensitive, low-power embedded applications demanding integrated capacitive sensing, analog signal conditioning, and flexible digital peripherals without external components.
FAQ
Does CY8C4145AZQ-S433 support USB connectivity?
No. The CY8C4145AZQ-S433 does not include a USB PHY or USB controller. It provides three SCBs supporting I²C, SPI, and UART only. For USB host/device functionality, designers must use an external USB-to-UART bridge IC or select a higher-tier PSoC™ device such as the CY8C6xx series with integrated USBFS.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ 3.x+ and legacy PSoC™ Creator 4.4 for CY8C4145AZQ-S433. ModusToolbox™ provides ARM GCC-based builds, BSPs, CAPSENSE™ Tuner, and code examples targeting this specific part number. PSoC™ Creator remains functional but is no longer updated beyond v4.4.
Can the internal opamps drive external loads directly?
Yes - the two CTB opamps support high-drive external mode with up to 25 mA output current and rail-to-rail swing. They can directly drive resistive touch overlays, LED bias circuits, or small solenoids without external buffers, provided load impedance stays within specified stability margins per the datasheet's CTBm electrical characteristics table.
Is the 32 kHz WCO mandatory for Deep Sleep operation?
No. The 32 kHz WCO is optional. Deep Sleep mode operates using the internal 32 kHz ILO oscillator, which consumes <1 µA and provides sufficient accuracy (±50%) for wake-up timing. The WCO is only required when sub-1% timing accuracy is needed for RTC or low-jitter wake-up intervals - e.g., in metering or synchronized sensor sampling.
CY8C4145AZQ-S433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, 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, 16x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4145AZQ-S433 FAQ
1.How can I place an order for CY8C4145AZQ-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4145AZQ-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 CY8C4145AZQ-S433 reliable?
The price and inventory of CY8C4145AZQ-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4145AZQ-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4145AZQ-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4145AZQ-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4145AZQ-S433?
CY8C4145AZQ-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4145AZQ-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 CY8C4145AZQ-S433?
For technical support, including CY8C4145AZQ-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4145AZQ-S433 requirements.
6.How does Aetrix verify that CY8C4145AZQ-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4145AZQ-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 CY8C4145AZQ-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4145AZQ-S433?
All CY8C4145AZQ-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4145AZQ-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 CY8C4145AZQ-S433 part is unused and in its original packaging.
Return procedure for CY8C4145AZQ-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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