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Infineon Technologies CY8C4146AXQ-S423
- Part No.:
- CY8C4146AXQ-S423
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4146AXQ-S423.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
CY8C4146AXQ-S423 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 1.71–5.5 V and supports deep-sleep mode at 2.5 µA system current, targeting human-interface and low-power embedded control applications.
For engineers reviewing the CY8C4146AXQ-S423 datasheet, CY8C4146AXQ-S423 pinout, CY8C4146AXQ-S423 application, or CY8C4146AXQ-S423 equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options for touch-enabled industrial controls, smart sensors, and battery-powered HMI designs.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (two opamps, two comparators, 12-bit SAR ADC, IDACs) and digital (TCPWM, SCB, Smart I/O) peripherals. Its CAPSENSE™ sigma-delta engine achieves >5:1 SNR and hardware-accelerated water-tolerant touch detection.
System-level flexibility is enabled by five 16-bit TCPWM blocks supporting center-aligned PWM and quadrature decoding, plus three SCBs that can be independently configured as I²C, SPI, or UART - all runtime reconfigurable without firmware reload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply enables deterministic real-time control loops. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for complex CAPSENSE™ + communication + control firmware in single-chip HMI. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended - supports precision sensor acquisition with channel sequencer and signal averaging. |
| CAPSENSE™ | Sigma-delta CSD with >5:1 SNR and SmartSense auto-tuning - eliminates manual calibration for production touch panels. |
| Power | 1.71–5.5 V operation; Deep Sleep at 2.5 µA - enables multi-year battery life in remote controls and IoT edge nodes. |
| GPIO | Up to 36 programmable pins - any pin supports CAPSENSE™, analog input, or digital I/O with configurable drive strength/slew rate. |
| Clock Sources | IMO (±2%), ILO (32 kHz), WCO (32.768 kHz) - enables RTC functionality and low-jitter timing without external crystals. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose GPIO / CAPSENSE™ / Analog Input | Configurable as touch sense electrode, ADC input, or digital I/O; supports high-drive analog buffering. |
| P1[0]–P1[7] | General-purpose GPIO / SCB / TCPWM | Supports I²C/SPI/UART signals or PWM output; programmable slew rate reduces EMI in motor control. |
| P2[0]–P2[7] | General-purpose GPIO / LCD Segment Drive | Direct segment driving capability eliminates external LCD driver IC in small displays. |
| VDD, VSS | Power Supply / Ground | Single 1.71–5.5 V supply rail; internal LDO supports stable core voltage across wide input range. |
| XRES | Active-low Reset Input | Asynchronous reset pin with internal pull-up; accepts 1.2–5.5 V logic levels for robust system recovery. |
| SWDIO / SWCLK | Debug Interface | Two-pin Serial Wire Debug interface enables in-circuit programming and real-time trace without dedicated JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| Runtime-reconfigurable SCBs | Three independent serial blocks dynamically switch between I²C, SPI, and UART protocols - simplifies firmware reuse across multiple interface requirements. |
| Deep Sleep analog retention | Opamps and comparators remain active in Deep Sleep at 2.5 µA total system current - enables wake-on-touch without full MCU wake-up latency. |
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration adjusts baseline and sensitivity per electrode - eliminates factory tuning and field drift compensation code. |
| Programmable TCPWM kill input | Comparator-triggered hardware kill signal disables PWM outputs within one clock cycle - critical for safe motor control and power stage protection. |
| Capacitive sigma-delta CSD | SNR >5:1 with water tolerance - enables reliable touch operation on wet or contaminated surfaces in industrial and appliance environments. |
Applications
| Industrial Human-Machine Interface | Smart Appliance Control Panel |
|---|---|
Use Scenario: Touch-based operator panel for PLC-connected machinery with LED feedback and status indicators. IC Role / Device Role / Timing Role: Central controller managing CAPSENSE™ buttons, LED PWM dimming, UART communication to PLC, and real-time fault monitoring via analog inputs. Use Value: Single-chip integration replaces discrete MCU + touch controller + LED driver, reducing BOM cost and PCB area by 35%. |
Use Scenario: Waterproof touch interface on refrigerator door with ambient light adaptive backlighting. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with water-tolerant sensing, ambient light ADC input, and LCD segment drive for temperature display. Use Value: Hardware SNR >5:1 and SmartSense eliminate false triggers from condensation, enabling Class IPX4-rated design without mechanical buttons. |
| Battery-Powered Remote Sensor Node | Motorized Actuator Controller |
Use Scenario: Wireless environmental sensor node with capacitive wake button, temperature/humidity ADC, and BLE interface. IC Role / Device Role / Timing Role: Low-power coordinator handling deep-sleep wake-on-touch, SAR ADC sampling, and SPI communication to BLE SoC. Use Value: 2.5 µA Deep Sleep with active analog enables >5-year CR2032 battery life while maintaining instant wake responsiveness. |
Use Scenario: Compact fan or valve actuator with position feedback, overcurrent protection, and soft-start PWM control. IC Role / Device Role / Timing Role: Real-time motor controller using TCPWM with comparator-triggered kill signal and quadrature decoder for encoder input. Use Value: Hardware kill path ensures <100 ns response to overcurrent events - meets IEC 61800-5-2 functional safety requirements for Category 3 systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller with integrated capacitive sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZQ-S423 | Same PSoC™ 4100S family; 128 KB flash, 16 KB SRAM, identical peripheral set and pinout. | Required when firmware exceeds 64 KB or requires larger data buffers for advanced CAPSENSE™ gesture processing. | Select for future-proofing firmware growth or adding Bluetooth stack co-processing tasks. |
| CY8C4046LQ-S412 | Lower-cost PSoC™ 4000S variant; 32 KB flash, 4 KB SRAM, no CAPSENSE™ sigma-delta block (only basic CSD), no opamps. | Suitable only for simple proximity or button-only touch, not for high-SNR or analog sensor fusion applications. | Choose only for cost-sensitive, non-critical touch applications where water tolerance and analog integration are unnecessary. |
Compared with CY8C4147AZQ-S423, this part trades flash/SRAM headroom for lower unit cost and same footprint; versus CY8C4046LQ-S412, it adds sigma-delta CAPSENSE™, opamps, and SAR ADC - enabling robust touch + analog + control in one die where alternatives require external components.
Availability
CY8C4146AXQ-S423 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance interfaces, and battery-powered sensor nodes requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY8C4146AXQ-S423 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 cost-effective, highly integrated human-interface and mixed-signal control applications where programmable analog/digital resources reduce external component count.
FAQ
Does CY8C4146AXQ-S423 support USB connectivity?
No. This device does not include a USB PHY or USB controller. Communication is limited to the three reconfigurable serial communication blocks (SCBs), which support I²C, SPI, and UART only. For USB host or device functionality, an external USB-to-UART bridge or a higher-tier PSoC™ device (e.g., PSoC™ 6) is required.
What development tools are officially supported for CY8C4146AXQ-S423?
Infineon officially supports ModusToolbox™ (v3.x+) and legacy PSoC™ Creator (v4.4) IDEs. Both provide full peripheral configuration, CAPSENSE™ tuning GUI, TCPWM waveform generation, and debug via SWD. Code examples and BSPs are validated for the 48LD TQFP package and match the S423 speed grade.
Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?
No. The SAR ADC uses a single conversion core with a channel sequencer and supports sequential sampling up to 1 Msps aggregate rate. It does not support true simultaneous sampling or multiple independent ADC cores. Differential mode and signal averaging are supported per channel to improve effective resolution.
Can the opamps operate in Deep Sleep mode while the CPU is powered down?
Yes. The two continuous-time opamps (CTB) retain full functionality in Deep Sleep mode, including high-drive external mode and ADC input buffering. They draw <1 µA each and maintain bias stability - enabling always-on sensor signal conditioning without waking the CPU.
CY8C4146AXQ-S423 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- 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, 20x12b SAR; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AXQ-S423 FAQ
1.How can I place an order for CY8C4146AXQ-S423 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AXQ-S423 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 CY8C4146AXQ-S423 reliable?
The price and inventory of CY8C4146AXQ-S423 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AXQ-S423 is usually 5 days.
3.What payment methods are accepted for CY8C4146AXQ-S423?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AXQ-S423 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AXQ-S423?
CY8C4146AXQ-S423 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AXQ-S423 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 CY8C4146AXQ-S423?
For technical support, including CY8C4146AXQ-S423 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AXQ-S423 requirements.
6.How does Aetrix verify that CY8C4146AXQ-S423 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AXQ-S423 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 CY8C4146AXQ-S423 meets industry standards.
7.What is the process for return or replacement of CY8C4146AXQ-S423?
All CY8C4146AXQ-S423 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AXQ-S423, 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 CY8C4146AXQ-S423 part is unused and in its original packaging.
Return procedure for CY8C4146AXQ-S423:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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