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Infineon Technologies CY8C4146LQI-S433
- Part No.:
- CY8C4146LQI-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQI-S433.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,926
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Product details
Overview
CY8C4146LQI-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, and reconfigurable analog/digital blocks. It supports deep-sleep operation at 2.5 µA digital current, features three reconfigurable SCB serial interfaces (I²C/SPI/UART), and delivers >5:1 SNR in wet environments - deployed in industrial HMI touch panels and consumer appliance control systems.
For engineers reviewing the CY8C4146LQI-S433 datasheet, CY8C4146LQI-S433 pinout, CY8C4146LQI-S433 application, or CY8C4146LQI-S433 equivalent, key selection criteria include its 36 GPIO with CAPSENSE™/analog/digital flexibility, SmartSense™ automatic tuning, TCPWM kill-signal triggering for motor safety, and 1.71–5.5 V wide-voltage operation across battery-powered and line-powered designs.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (two opamps, 12-bit SAR ADC, two IDACs, low-power comparators) and digital resources (five TCPWM blocks, three SCBs, programmable logic). Its clock system includes ±2% IMO, 32 kHz ILO, and WCO support for precision timing.
Capacitive sensing uses sigma-delta modulation with hardware-accelerated SmartSense™ tuning and >5:1 SNR - enabling robust touch detection under moisture. All GPIO pins support configurable drive modes, slew rates, and analog/digital/CAPSENSE™ roles without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply enables real-time control loops without software overhead. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for firmware, CAPSENSE™ library, and sensor fusion algorithms in standalone edge nodes. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC, two opamps, two IDACs, two low-power comparators - supports simultaneous signal conditioning, sensing, and threshold monitoring in deep sleep. |
| Capacitive Sensing | Sigma-delta CSD with >5:1 SNR and SmartSense™ auto-tuning - eliminates manual calibration and maintains reliability in humid or condensing environments. |
| Digital Interfaces | Three reconfigurable SCBs (I²C/SPI/UART), five TCPWM blocks with kill-input triggering - enables motor control, display interface, and multi-protocol connectivity on one die. |
| Power Range | 1.71–5.5 V supply - supports direct Li-ion battery (3.0–4.2 V), USB (5 V), or industrial 3.3 V/5 V rails without LDO redesign. |
| GPIO | 36 programmable pins - each configurable as CAPSENSE™, analog input/output, or digital with programmable drive strength and slew rate. |
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 | Primary power supply | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local 100 nF decoupling. |
| VSS | Ground reference | Digital and analog ground common point; must be low-impedance connection to PCB plane. |
| XRES | Active-low reset input | Asynchronous reset pin; internal pull-up; compatible with open-drain reset supervisors. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug port for programming and real-time debugging via ModusToolbox™ or PSoC™ Creator. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIO | All 36 pins support CAPSENSE™, analog input/output, digital I/O, or serial interface functions - no fixed peripheral pinout. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ CAPSENSE™ tuning | Hardware-accelerated auto-calibration eliminates manual electrode tuning and maintains stable touch response across temperature/humidity drift. |
| Deep Sleep with active analog | 2.5 µA system current while maintaining opamp, comparator, and CAPSENSE™ wake-on-touch functionality - extends battery life in portable HMIs. |
| Reconfigurable SCBs | Three independent serial blocks dynamically assigned as I²C master/slave, SPI master/slave, or UART - reduces BOM count and PCB routing complexity. |
| TCPWM kill-signal input | Dedicated hardware input to force immediate PWM shutdown - meets functional safety requirements for motor drives and power converters. |
| Programmable drive strength | Four configurable drive levels per GPIO (2–25 mA) with slew-rate control - optimizes EMI, rise/fall time, and noise immunity per signal path. |
Applications
| Industrial HMI Panels | Smart Home Appliances |
|---|---|
|
Use Scenario: Touch-enabled control panel on HVAC systems exposed to condensation and dust. IC Role / Device Role / Timing Role: Main MCU executing CAPSENSE™ firmware, managing display interface via SPI, and controlling relay drivers via TCPWM. Use Value: >5:1 SNR and SmartSense™ ensure reliable touch detection without false triggers during humidity spikes or surface contamination. |
Use Scenario: Cooktop control with slider, buttons, and proximity wake-up in kitchen environments. IC Role / Device Role / Timing Role: Single-chip touch controller and system manager - handles CAPSENSE™, LED dimming via PWM, and communication with main MCU over I²C. Use Value: 36 flexible GPIO eliminate external multiplexers; deep-sleep current <3 µA enables always-on proximity sensing with multi-year battery life. |
| Medical Patient Monitors | Automotive Cabin Controls |
|
Use Scenario: Touch interface on portable vital-sign monitors requiring ESD robustness and low-power operation. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ subsystem with analog front-end filtering and SAR ADC for auxiliary sensor inputs (e.g., temperature). Use Value: Integrated opamps and IDACs enable ratiometric sensor biasing and signal conditioning - reducing external analog components by 40%. |
Use Scenario: Climate control panel in automotive cabins with glove-box access and high ambient temperature exposure. IC Role / Device Role / Timing Role: Touch controller interfacing with vehicle CAN bus via external transceiver; manages LCD segment drive and backlight PWM. Use Value: Wide 1.71–5.5 V operation tolerates automotive load-dump transients; -40°C to +85°C rating ensures reliability across thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4046LQI-S413 | Same PSoC™ 4100S family but with 32 KB flash, 4 KB SRAM, and no SmartSense™ CAPSENSE™ auto-tuning. | Limited to simpler touch interfaces without dynamic environmental compensation. | Select when cost-sensitive designs require basic CAPSENSE™ without auto-calibration and reduced memory footprint. |
| STM32G031K8T6 | Arm® Cortex®-M0+ at 64 MHz, 64 KB flash, 8 KB SRAM, but lacks integrated CAPSENSE™, programmable analog, and hardware kill-input for TCPWM. | Requires external touch controller and analog signal chain for comparable sensing capability. | Choose when standard peripherals suffice and design team prefers ST's ecosystem over Infineon's ModusToolbox™/PSoC™ Creator toolchain. |
Compared with CY8C4146LQI-S433, CY8C4046LQI-S413 trades CAPSENSE™ intelligence and memory for lower unit cost, while STM32G031K8T6 offers higher CPU speed but demands external components to match integrated analog/sensing functionality - making CY8C4146LQI-S433 optimal for compact, self-contained touch-control systems.
Availability
CY8C4146LQI-S433 is available at Aetrix Electronics and suitable for industrial HMI panels, smart home appliances, medical patient monitors, and automotive cabin controls requiring stable component supply, long-term lifecycle assurance, and qualified production traceability.
Supply support for CY8C4146LQI-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, sensing, and microcontroller solutions for industrial, automotive, and IoT applications.
CY8C4146LQI-S433 belongs to the PSoC™ 4100S product line - designed specifically for cost-sensitive, space-constrained embedded systems requiring integrated capacitive touch, programmable analog, and low-power operation without external support components.
FAQ
Does CY8C4146LQI-S433 support hardware-based encryption or secure boot?
No. CY8C4146LQI-S433 does not include cryptographic accelerators, secure ROM, or hardware root-of-trust features. It relies on software-based security libraries for basic AES or SHA operations, but lacks dedicated secure boot or key storage - making it unsuitable for applications requiring certified data integrity or firmware authentication.
Can the 12-bit SAR ADC perform simultaneous sampling on multiple channels?
No. The 12-bit SAR ADC supports sequential channel scanning via its hardware sequencer, but lacks true simultaneous sampling capability. It achieves up to 1 Msps aggregate throughput across up to 16 channels using configurable averaging and burst mode - sufficient for motor current sensing or multi-sensor polling, but not phase-aligned acquisition.
What is the maximum operating temperature for CY8C4146LQI-S433 in continuous use?
The device is rated for continuous operation from –40°C to +85°C ambient temperature, validated per JEDEC JESD22-A104. At 85°C, all specifications including flash endurance (100k cycles), SRAM retention, and CAPSENSE™ SNR remain guaranteed - confirmed in Infineon's 002-00122 Rev. *Q datasheet Section 5.2.
Is external crystal required for accurate real-time clock (RTC) functionality?
Yes. While the device includes a 32 kHz internal low-power oscillator (ILO), its ±50% accuracy makes it unsuitable for RTC applications. For precise timekeeping, the 32 kHz watch crystal oscillator (WCO) must be populated externally - supporting ±20 ppm stability when paired with appropriate load capacitors per datasheet layout guidelines.
CY8C4146LQI-S433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tray
- 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:
- 34
- 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:
CY8C4146LQI-S433 FAQ
1.How can I place an order for CY8C4146LQI-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQI-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 CY8C4146LQI-S433 reliable?
The price and inventory of CY8C4146LQI-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQI-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQI-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQI-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQI-S433?
CY8C4146LQI-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQI-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 CY8C4146LQI-S433?
For technical support, including CY8C4146LQI-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQI-S433 requirements.
6.How does Aetrix verify that CY8C4146LQI-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQI-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 CY8C4146LQI-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQI-S433?
All CY8C4146LQI-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQI-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 CY8C4146LQI-S433 part is unused and in its original packaging.
Return procedure for CY8C4146LQI-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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