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Infineon Technologies CY8C4146FNI-S433T
- Part No.:
- CY8C4146FNI-S433T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 35-XFBGA, WLCSP
- Datasheet:
-
CY8C4146FNI-S433T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 35XFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,624
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Product details
Overview
CY8C4146FNI-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 1-Msps 12-bit SAR ADC, two opamps, two low-power comparators, three SCBs (I²C/SPI/UART), five TCPWM blocks, and operates from 1.71–5.5 V in Deep Sleep mode at 2.5 µA. Used in touch-enabled human-machine interfaces for industrial control panels.
For engineers reviewing the CY8C4146FNI-S433T datasheet, CY8C4146FNI-S433T pinout, CY8C4146FNI-S433T application, or CY8C4146FNI-S433T equivalent, this page delivers verified specifications, package mapping, functional role clarity, and real-world design context - including CAPSENSE™ SNR >5:1, SmartSense auto-tuning, and GPIO-configurable analog/digital/CAPSENSE™ routing.
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 (PLD logic, TCPWM, SCB) subsystems. All peripherals are routed via a flexible interconnect fabric enabling dynamic signal path configuration without hardware changes.
Its clock system combines ±2% IMO, 32 kHz ILO, and WCO for precision timing; power management includes Deep Sleep mode with active analog blocks and 2.5 µA system current. CAPSENSE™ uses hardware-accelerated sigma-delta conversion with automatic SmartSense tuning for water-tolerant touch detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz with single-cycle multiply - enables deterministic real-time control and efficient firmware execution. |
| Memory | 64 KB flash (with read accelerator) + 8 KB SRAM - supports complex embedded applications with firmware updates and data buffering. |
| ADC | 12-bit SAR ADC @ 1 Msps with differential/single-ended modes and channel sequencer - provides high-speed, high-resolution sensor acquisition. |
| CAPSENSE™ | Sigma-delta CSD engine with >5:1 SNR and SmartSense auto-tuning - delivers robust, water-tolerant touch performance without manual calibration. |
| Power Range | 1.71–5.5 V supply with 2.5 µA Deep Sleep current - enables battery-powered HMI designs with extended runtime. |
| GPIO | Up to 36 programmable pins supporting CAPSENSE™, analog, or digital functions with configurable drive strength/slew rate - simplifies PCB routing and multi-role pin assignment. |
| Communication | Three reconfigurable SCBs supporting I²C, SPI, or UART simultaneously - eliminates need for external protocol translators in mixed-interface systems. |
Pinout & Package
This device is packaged in a 48-lead TQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully reconfigurable via firmware, enabling dynamic assignment of analog, digital, CAPSENSE™, or communication roles per pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 1.71–5.5 V domain inputs; multiple VDD/VSS pairs ensure stable core/analog operation and low-noise CAPSENSE™ reference. |
| 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 | All 36 pins support CAPSENSE™, analog input/output, digital logic, or serial interface signals - assigned dynamically in firmware. |
| XRES | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external pushbutton or supervisor IC assertion. |
| SWDCK / SWDIO | Debug interface | Two-pin Serial Wire Debug interface for programming and real-time debugging without dedicated JTAG header. |
| XTAL32K / XTAL32K_N | 32 kHz crystal oscillator terminals | Connects to external watch crystal for precise RTC timing and low-power wake-up source. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Two CTB opamps operate in Deep Sleep mode with ADC input buffering and comparator modes - enables always-on sensor front-end with ultra-low power. |
| Hardware-Accelerated CAPSENSE™ | Sigma-delta CSD engine with >5:1 SNR and SmartSense auto-tuning - eliminates manual calibration and maintains reliability under moisture or EMI stress. |
| Flexible Serial Connectivity | Three independent SCBs each configurable as I²C master/slave, SPI master/slave, or UART - reduces BOM count and simplifies interface consolidation. |
| Programmable Digital Logic | PLD blocks perform Boolean operations on port signals - implements glue logic (e.g., interrupt arbitration, signal conditioning) without CPU overhead. |
| Low-Power Timing | Five TCPWM blocks support center-aligned PWM, quadrature decoding, and comparator-triggered kill signals - ideal for motor control and safety-critical timing. |
Applications
| Industrial HMI Panels | Smart Appliance Touch Controls |
|---|---|
Use Scenario: Touch-sensitive operator interface on PLC-mounted control panels exposed to dust, vibration, and variable ambient light. IC Role / Device Role / Timing Role: Main MCU executing CAPSENSE™ scan, processing button/slider gestures, driving local LCD segments, and communicating via UART/I²C to host controller. Use Value: Hardware-accelerated sigma-delta CAPSENSE™ ensures >5:1 SNR and water tolerance, eliminating false triggers during cleaning or condensation exposure. |
Use Scenario: Capacitive touch interface on refrigerator or oven control panel requiring low standby power and resistance to grease/moisture. IC Role / Device Role / Timing Role: Standalone touch controller with Deep Sleep mode (2.5 µA), SmartSense auto-calibration, and GPIO-driven LED feedback. Use Value: Eliminates manual tuning across production batches and environmental shifts - reducing qualification time and field failure rates. |
| Medical Device Keypads | IoT Sensor Gateways |
Use Scenario: Sterilizable touch keypad on infusion pump or diagnostic equipment requiring ESD immunity and tactile feedback simulation. IC Role / Device Role / Timing Role: CAPSENSE™ acquisition engine with programmable IDACs for self-capacitance measurement, coupled with SAR ADC for auxiliary sensor monitoring. Use Value: Dual ADC capability (12-bit SAR + 10-bit CSD) enables simultaneous touch and temperature/humidity sensing without external converters. |
Use Scenario: Edge node aggregating BLE/Wi-Fi sensor data with local touch configuration and status display. IC Role / Device Role / Timing Role: System-on-chip managing CAPSENSE™ UI, SPI-connected environmental sensors, and UART-to-BLE module bridging. Use Value: Three reconfigurable SCBs allow concurrent I²C (sensor), SPI (flash), and UART (BLE) - avoiding multiplexing delays or external bus switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S445 | Same PSoC™ 4100S family, but 48-QFN package (6 × 6 mm), no exposed thermal pad, and higher max operating temperature (105°C vs. 85°C). | Better suited for space-constrained, thermally demanding industrial modules where TQFP reflow compatibility is not required. | Select when board area is critical and thermal dissipation can be managed via PCB copper; verify layout compatibility with QFN footprint. |
| CY8C4046LQI-S412 | Lower-cost PSoC™ 4000S variant: 24 MHz CPU, 32 KB flash, 4 KB SRAM, no CAPSENSE™ sigma-delta engine (only basic CSD), no opamps. | Targeted at cost-sensitive, non-touch or simple proximity-sensing applications without analog signal conditioning needs. | Choose only if CAPSENSE™ SNR >5:1, opamp-based sensor buffering, or 48 MHz real-time processing are unnecessary. |
Compared with CY8C4147AZI-S445, the CY8C4146FNI-S433T offers TQFP manufacturability and lower thermal rating - ideal for standard SMT lines; versus CY8C4046LQI-S412, it delivers full CAPSENSE™ sigma-delta performance and analog flexibility at modest BOM premium.
Availability
CY8C4146FNI-S433T is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controls, medical device keypads, and IoT sensor gateways requiring stable component supply, long-term lifecycle assurance, and qualified reflow compatibility.
Supply support for CY8C4146FNI-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, automotive MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
This part belongs to the PSoC™ 4100S product line - designed specifically for cost-effective, highly integrated human-machine interface applications requiring robust capacitive touch, programmable analog, and Arm®-based real-time control.
FAQ
Does CY8C4146FNI-S433T support hardware-based CAPSENSE™ tuning?
Yes. It includes SmartSense™ - a hardware-accelerated auto-tuning algorithm that dynamically adjusts CAPSENSE™ parameters (IDAC, resolution, averaging) during operation. This eliminates manual calibration across temperature, voltage, and PCB stackup variations while maintaining >5:1 SNR in wet conditions.
What debug interface does CY8C4146FNI-S433T use?
It uses a two-pin Serial Wire Debug (SWD) interface (SWDCK and SWDIO), compatible with industry-standard tools like Segger J-Link and Infineon's KitProg3. No JTAG header is required, and debug functionality remains available even in Deep Sleep mode with selected wake-up sources enabled.
Can all GPIO pins be used for CAPSENSE™ sensing simultaneously?
No. While any of the 36 GPIOs can be assigned to CAPSENSE™, the sigma-delta CSD block supports up to 32 sensing electrodes and 8 mutual-capacitance channels. Simultaneous use depends on configured scan method (self-cap vs. mutual-cap), resolution, and averaging - maximum electrode count is constrained by available CSD hardware resources, not pin count.
Is the 12-bit SAR ADC capable of differential measurements?
Yes. The SAR ADC supports true differential input mode with programmable gain (1×, 2×, 4×, 8×) and built-in channel sequencer with signal averaging. Differential operation improves noise rejection for low-level sensor signals such as bridge-based pressure or temperature transducers.
CY8C4146FNI-S433T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 35-XFBGA, WLCSP
- 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:
- 31
- 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:
CY8C4146FNI-S433T FAQ
1.How can I place an order for CY8C4146FNI-S433T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146FNI-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 CY8C4146FNI-S433T reliable?
The price and inventory of CY8C4146FNI-S433T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146FNI-S433T is usually 5 days.
3.What payment methods are accepted for CY8C4146FNI-S433T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146FNI-S433T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146FNI-S433T?
CY8C4146FNI-S433T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146FNI-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 CY8C4146FNI-S433T?
For technical support, including CY8C4146FNI-S433T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146FNI-S433T requirements.
6.How does Aetrix verify that CY8C4146FNI-S433T is sourced from the original manufacturer or authorized distributors?
All CY8C4146FNI-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 CY8C4146FNI-S433T meets industry standards.
7.What is the process for return or replacement of CY8C4146FNI-S433T?
All CY8C4146FNI-S433T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146FNI-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 CY8C4146FNI-S433T part is unused and in its original packaging.
Return procedure for CY8C4146FNI-S433T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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