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Infineon Technologies CY8C4146AXI-S433
- Part No.:
- CY8C4146AXI-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4146AXI-S433.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,155
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Product details
Overview
CY8C4146AXI-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 operates from 1.71 V to 5.5 V and supports deep-sleep mode with 2.5 µA system current, targeting embedded human-interface and industrial control applications.
For engineers reviewing the CY8C4146AXI-S433 datasheet, CY8C4146AXI-S433 pinout, CY8C4146AXI-S433 application, or CY8C4146AXI-S433 equivalent, key selection considerations include its reconfigurable analog/digital blocks, SmartSense auto-tuning for water-tolerant touch, TCPWM kill-signal triggering for motor safety, and GPIO flexibility across 36 pins with programmable drive strength and slew rate.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (two opamps, two comparators, IDACs, 12-bit SAR ADC) and digital (five TCPWM blocks, three SCBs, PLD logic) subsystems. All analog peripherals remain operational in Deep Sleep mode, enabling always-on sensing at ultra-low power.
Its clock system combines ±2% IMO, 32 kHz ILO, and WCO support; CAPSENSE™ uses sigma-delta modulation with >5:1 SNR and hardware-accelerated SmartSense tuning. GPIOs are fully reconfigurable for analog input, digital I/O, or CAPSENSE™ electrode roles without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz with single-cycle multiply - enables real-time control and firmware-based signal processing without external co-processors. |
| Memory | 64 KB flash (with read accelerator) + 8 KB SRAM - supports complex firmware with bootloader, sensor fusion, and communication stacks in single-chip design. |
| ADC | 12-bit SAR ADC, 1 Msps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution acquisition for analog sensors and battery monitoring. |
| CAPSENSE™ | Sigma-delta capacitive sensing with >5:1 SNR and automatic SmartSense tuning - achieves robust touch detection under moisture, gloves, or varying dielectric conditions. |
| Power Modes | Deep Sleep mode with 2.5 µA system current and active analog - enables multi-year battery life in wake-on-touch or periodic sensing applications. |
| Serial Interfaces | Three run-time reconfigurable SCBs supporting I²C, SPI, or UART - allows dynamic peripheral assignment without hardware redesign or pin remapping. |
| TCPWM Blocks | Five 16-bit Timer/Counter/PWM units with center-aligned, edge-aligned, and pseudo-random modes - supports motor control, LED dimming, and precision timing with comparator-triggered kill signals. |
Pinout & Package
This device is housed in a 48-lead TQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. All 36 GPIOs support multiple functions including analog input, digital I/O, CAPSENSE™ electrode, LCD segment drive, and serial interface signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-supply domain: VDD powers digital/analog circuits; VSS is common reference - requires local decoupling per datasheet layout guidelines. |
| XRES | Active-low reset input | Asynchronous hardware reset with internal pull-up; accepts external push-button or supervisor IC assertion - ensures deterministic startup after brown-out. |
| SWDCLK / SWDIO | ARM Serial Wire Debug interface | Two-pin debug port supporting programming, real-time trace, and breakpoints - eliminates need for JTAG header in production PCB layout. |
| 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 configurable as analog input, digital I/O, CAPSENSE™ electrode, or serial interface signals - enables full system integration without discrete level shifters or muxes. |
| XTAL_IN / XTAL_OUT | 32 kHz watch crystal oscillator terminals | Supports external 32.768 kHz crystal for RTC accuracy ±20 ppm - required for low-power timekeeping during Deep Sleep. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Two opamps with selectable high-drive external or high-bandwidth internal modes, plus ADC input buffering - enables sensor signal conditioning and active filtering without external opamp ICs. |
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration that adjusts sensitivity, scan speed, and noise rejection in real time - eliminates manual tuning and improves field reliability across temperature/humidity variations. |
| Programmable Digital Logic | PLD blocks performing Boolean operations on port inputs/outputs - implements glue logic, state machines, or interrupt pre-processing without consuming CPU cycles. |
| LCD Segment Drive | Direct GPIO-based segment drive capability - drives up to 32 segments without external LCD controller, reducing BOM count in display-enabled HMI designs. |
| Low-Power Comparators | Two comparators operational in Deep Sleep mode with <1 µA quiescent current - enables wake-on-threshold detection for battery-powered sensors and alarms. |
Applications
| Industrial HMI Panels | Smart Home Touch Controls |
|---|---|
|
Use Scenario: Wall-mounted thermostat with glass-front capacitive buttons and ambient light sensing. IC Role / Device Role / Timing Role: Main MCU handling CAPSENSE™ touch, temperature ADC acquisition, I²C communication to HVAC controller, and PWM fan speed control. Use Value: Single-chip integration eliminates separate touch controller and sensor signal chain, while Deep Sleep mode extends battery life to >5 years in wireless variants. |
Use Scenario: Battery-powered smart light switch with moisture-resistant touch surface and BLE bridge interface. IC Role / Device Role / Timing Role: CAPSENSE™ host with SmartSense tuning, SAR ADC for battery voltage monitoring, and UART-to-BLE bridge via SCB. Use Value: >5:1 SNR and automatic water tolerance enable reliable operation in humid bathrooms without mechanical buttons or sealed membranes. |
| Medical Patient Monitors | Motor Control Interface Modules |
|
Use Scenario: Portable pulse oximeter with fingertip touch interface and optical sensor signal conditioning. IC Role / Device Role / Timing Role: Analog front-end (opamp + 12-bit SAR ADC) for photodiode signal amplification and digitization, plus CAPSENSE™ for non-contact gesture control. Use Value: Integrated opamp buffering and programmable gain eliminate external instrumentation amplifier, reducing size and EMI susceptibility in Class II medical devices. |
Use Scenario: Brushless DC motor driver board with overcurrent protection and user-adjustable speed setpoint. IC Role / Device Role / Timing Role: Safety-critical TCPWM block generating center-aligned PWM with comparator-triggered kill signal to disable gate drivers during fault. Use Value: Hardware-level kill signal propagation (<100 ns latency) meets IEC 61800-5-2 functional safety requirements without external watchdog ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S423 | Same PSoC™ 4100S family, but 48-QFN package (6 × 6 mm), no WCO pins, 64 KB flash/8 KB SRAM - lacks 32 kHz crystal oscillator support. | Preferred for space-constrained PCBs where RTC accuracy is handled externally or via software compensation. | Select when footprint size is critical and crystal-based RTC is not required. |
| CY8C4046LTI-S412 | PSoC™ 4000S series, Cortex®-M0+, 24 MHz, 32 KB flash/4 KB SRAM, no CAPSENSE™ sigma-delta block - lower performance, no SmartSense, reduced analog resources. | Suitable for cost-sensitive, non-touch applications requiring basic GPIO, timers, and UART only. | Choose only if CAPSENSE™ performance, SAR ADC resolution, or Deep Sleep current <3 µA are not required. |
Compared with CY8C4147AZI-S423, this part adds WCO support for precise RTC and larger pin count for routing flexibility; versus CY8C4046LTI-S412, it delivers 2× flash/SRAM, full CAPSENSE™ sigma-delta engine, and 48 MHz CPU for real-time sensor fusion - making it the only option meeting demanding HMI and industrial control requirements.
Availability
CY8C4146AXI-S433 is available at Aetrix Electronics and suitable for industrial HMI panels, smart home touch controls, medical patient monitors, and motor control interface modules requiring stable component supply, long-term lifecycle assurance, and full technical documentation support.
Supply support for CY8C4146AXI-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.
CY8C4146AXI-S433 belongs to the PSoC™ 4100S product line - designed specifically for highly integrated, low-power embedded systems requiring reconfigurable analog/digital peripherals and robust capacitive touch in industrial and consumer HMI applications.
FAQ
Does CY8C4146AXI-S433 support USB connectivity?
No, CY8C4146AXI-S433 does not include a USB PHY or USB controller. It provides three reconfigurable serial communication blocks (SCBs) supporting I²C, SPI, and UART only. For USB host or device functionality, an external USB-to-UART bridge IC or migration to a PSoC™ 6 device with integrated USB is required.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ 3.x for CY8C4146AXI-S433, including the Peripheral Driver Library (PDL), CAPSENSE™ Tuner, and middleware stacks. Legacy PSoC™ Creator IDE is also compatible but no longer actively developed. Both environments provide full debug, programming, and CAPSENSE™ tuning capabilities via SWD interface.
Can all 36 GPIOs be used simultaneously as CAPSENSE™ electrodes?
Yes, all 36 GPIOs can be configured as CAPSENSE™ electrodes, but practical electrode count depends on mutual capacitance coupling and scan time constraints. The CSD block supports up to 32 self-capacitance or 16 mutual-capacitance electrodes per scan; full 36-pin usage requires time-multiplexed scanning and firmware optimization per Infineon AN92239.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No, the 12-bit SAR ADC uses a single conversion core with a channel sequencer. It performs sequential sampling across up to 16 channels with programmable sample-and-hold timing and signal averaging per channel, but does not support true simultaneous sampling. For synchronized multi-channel acquisition, external parallel ADCs or PSoC™ 6 devices with dual ADCs are recommended.
CY8C4146AXI-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 Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, 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:
CY8C4146AXI-S433 FAQ
1.How can I place an order for CY8C4146AXI-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AXI-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 CY8C4146AXI-S433 reliable?
The price and inventory of CY8C4146AXI-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AXI-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4146AXI-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AXI-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AXI-S433?
CY8C4146AXI-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AXI-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 CY8C4146AXI-S433?
For technical support, including CY8C4146AXI-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AXI-S433 requirements.
6.How does Aetrix verify that CY8C4146AXI-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AXI-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 CY8C4146AXI-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4146AXI-S433?
All CY8C4146AXI-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AXI-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 CY8C4146AXI-S433 part is unused and in its original packaging.
Return procedure for CY8C4146AXI-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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