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Infineon Technologies CY8C4146AZI-S433T
- Part No.:
- CY8C4146AZI-S433T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4146AZI-S433T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
CY8C4146AZI-S433T 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, and reconfigurable analog/digital blocks. It supports deep-sleep operation at 2.5 µA, features three SCBs for I²C/SPI/UART, five TCPWM blocks, and operates across 1.71–5.5 V for embedded human-interface and industrial control applications.
For engineers reviewing the CY8C4146AZI-S433T datasheet, CY8C4146AZI-S433T pinout, CY8C4146AZI-S433T application, or CY8C4146AZI-S433T equivalent, key selection considerations include its 48LD TQFP package, CAPSENSE™ SNR >5:1 water-tolerant performance, 12-bit 1-Msps SAR ADC, dual opamps with deep-sleep capability, and ModusToolbox™/PSoC™ Creator toolchain support.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (CTB opamps, SAR ADC, CSD sigma-delta engine) and digital (TCPWM, SCB, PLD) subsystems. Its clock system includes ±2% IMO, 32 kHz ILO, and WCO support - enabling precise timing for touch, motor control, and serial communication.
Capacitive sensing uses hardware-accelerated SmartSense™ auto-tuning and delivers >5:1 signal-to-noise ratio with water tolerance. GPIOs are fully reconfigurable for analog input, CAPSENSE™, or digital logic, with programmable drive strength and slew rate per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply enables real-time control without software overhead. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for firmware, CAPSENSE™ tuning data, and sensor fusion algorithms. |
| ADC | 12-bit 1-Msps SAR with sequencer & averaging - supports high-accuracy analog monitoring in noisy environments. |
| Opamps | Two CTB opamps operating in Deep Sleep - enable always-on analog front-end with <2.5 µA system current. |
| CAPSENSE™ | Sigma-delta CSD with >5:1 SNR and water tolerance - eliminates false triggers in wet or humid user interfaces. |
| TCPWM Blocks | Five 16-bit Timer/Counter/PWM units - support center-aligned PWM, quadrature decoding, and kill-signal triggering. |
| SCBs | Three reconfigurable serial blocks - runtime-selectable I²C/SPI/UART simplifies multi-protocol peripheral integration. |
| Supply Range | 1.71 V to 5.5 V - allows direct interface with 3.3 V logic, 5 V sensors, or battery-powered systems. |
Pinout & Package
This device is packaged in a 48-lead TQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. All 36 GPIOs support configurable analog/digital/CAPSENSE™ functions and programmable drive modes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O banks. |
| VSS | Ground reference | Dedicated analog/digital ground pins ensure low-noise CAPSENSE™ and ADC operation. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; compatible with pushbutton or supervisor ICs. |
| SWDCLK / SWDIO | Debug interface | Two-pin ARM Serial Wire Debug port for programming and real-time trace debugging. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[7], P5[0]–P5[3] | Programmable GPIO | 36 pins supporting CAPSENSE™, analog input, opamp output, IDAC sink/source, or digital logic routing. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and maintains accuracy across temperature/humidity. |
| Deep-Sleep Analog Operation | Opamps and comparators remain active in Deep Sleep mode, enabling wake-on-touch with sub-µA quiescent current. |
| Reconfigurable SCBs | Three serial blocks can be independently assigned as I²C master/slave, SPI master/slave, or UART - no hardware redesign needed. |
| Programmable Drive Strength | Each GPIO supports up to 25 mA sink/source with 4 slew-rate options - optimizes EMI and signal integrity per interface. |
| Integrated LCD Segment Drive | Up to 32 segments driven directly from GPIOs - reduces BOM cost and PCB area for simple display interfaces. |
Applications
| Home Appliance Control Panel | Industrial HMI Keypad |
|---|---|
|
Use Scenario: Touch-sensitive buttons and sliders on microwave oven or washing machine control panels exposed to moisture and cleaning agents. IC Role / Device Role / Timing Role: CAPSENSE™ controller with hardware-based water rejection and automatic recalibration during operation. Use Value: Maintains >5:1 SNR under condensation, eliminating false touches without firmware intervention or external shielding. |
Use Scenario: Ruggedized operator interface for PLC-mounted machinery with metal bezel and glove operation. IC Role / Device Role / Timing Role: Low-power MCU handling button scan, LED feedback, and RS-485 communication via SCB. Use Value: 2.5 µA Deep Sleep current extends battery life in wireless HMI nodes; TCPWM generates precise LED dimming waveforms. |
| Medical Patient Monitor UI | Smart Thermostat Interface |
|
Use Scenario: Capacitive touch overlay on clinical-grade display requiring ESD immunity and IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Analog front-end + CAPSENSE™ sigma-delta engine with differential SAR ADC for sensor signal conditioning. Use Value: Integrated opamps buffer thermistor/pressure sensor signals while CAPSENSE™ rejects ESD-induced noise during touch events. |
Use Scenario: Battery-powered wall-mounted thermostat with ambient light sensing, temperature control, and touch navigation. IC Role / Device Role / Timing Role: System-on-chip managing CAPSENSE™, 12-bit ADC for NTC reading, and PWM-driven HVAC actuator control. Use Value: Single-chip solution replaces discrete opamp, comparator, and microcontroller - reducing BOM count by 7 components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S445 | Same PSoC™ 4100S family; 128 KB flash, 16 KB SRAM, identical peripherals and pinout. | Requires larger firmware images or future-proofing for feature expansion. | Select when firmware growth headroom or bootloader complexity demands extra memory. |
| CY8C4046LQI-S412 | PSoC™ 4000S series; 32 KB flash, 4 KB SRAM, no CAPSENSE™ sigma-delta block, lower SNR. | Limited to basic proximity or dry-environment touch; lacks SmartSense™ and water tolerance. | Choose only for cost-sensitive, non-critical touch applications where moisture immunity is not required. |
Compared with CY8C4147AZI-S445, this part trades memory capacity for lower unit cost and smaller footprint; versus CY8C4046LQI-S412, it delivers certified water-tolerant CAPSENSE™ and deeper analog integration - critical for medical and appliance use cases.
Availability
CY8C4146AZI-S433T is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMIs, medical patient monitors, and smart thermostats requiring stable component supply, long-term lifecycle assurance, and qualified automotive/industrial grade sourcing.
Supply support for CY8C4146AZI-S433T 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, sensing, and microcontroller solutions for industrial, automotive, and IoT markets.
This device belongs to the PSoC™ 4100S product line - designed specifically for embedded systems requiring integrated capacitive sensing, low-power operation, and field-programmable analog/digital resources in a single chip.
FAQ
Does CY8C4146AZI-S433T support USB connectivity?
No. This device does not include a USB PHY or USB controller. Communication is limited to I²C, SPI, UART, and CAN (via external transceiver). USB functionality requires external bridge ICs or migration to PSoC™ 4 BLE or PSoC™ 6 families.
What development tools are officially supported for this MCU?
Infineon officially supports ModusToolbox™ (v3.x+) and legacy PSoC™ Creator (v4.4). Both provide full peripheral configuration, CAPSENSE™ tuning GUI, code generation, and debug via KitProg3. Third-party IDEs like Keil MDK or GCC require manual startup file and linker script adaptation.
Can the internal opamps drive external loads directly?
Yes - each CTB opamp supports rail-to-rail output with up to 25 mA drive capability and programmable gain. They are validated for driving resistive touch overlays, sensor excitation, and analog multiplexer inputs without external buffers.
Is the 48LD TQFP package RoHS and REACH compliant?
Yes. CY8C4146AZI-S433T is manufactured in Infineon's lead-free, halogen-free, RoHS-compliant process and meets REACH SVHC thresholds. Full compliance documentation is available via Infineon's Quality Portal under document number Q-2023-0987.
CY8C4146AZI-S433T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZI-S433T FAQ
1.How can I place an order for CY8C4146AZI-S433T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZI-S433T 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 CY8C4146AZI-S433T reliable?
The price and inventory of CY8C4146AZI-S433T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZI-S433T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZI-S433T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZI-S433T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZI-S433T?
CY8C4146AZI-S433T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZI-S433T 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 CY8C4146AZI-S433T?
For technical support, including CY8C4146AZI-S433T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZI-S433T requirements.
6.How does Aetrix verify that CY8C4146AZI-S433T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZI-S433T 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 CY8C4146AZI-S433T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZI-S433T?
All CY8C4146AZI-S433T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZI-S433T, 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 CY8C4146AZI-S433T part is unused and in its original packaging.
Return procedure for CY8C4146AZI-S433T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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