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Infineon Technologies CY8C4146AZI-S423
- Part No.:
- CY8C4146AZI-S423
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4146AZI-S423.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,189
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Product details
Overview
CY8C4146AZI-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, and reconfigurable analog/digital blocks. It supports deep-sleep operation at 2.5 µA, features three SCB serial interfaces (I²C/SPI/UART), five TCPWM timers, and operates across 1.71–5.5 V for embedded human-interface and industrial control applications.
For engineers reviewing the CY8C4146AZI-S423 datasheet, CY8C4146AZI-S423 pinout, CY8C4146AZI-S423 application, or CY8C4146AZI-S423 equivalent, this page delivers verified technical context, package mapping to 48-lead TQFP, confirmed GPIO count (36), SAR ADC specs (12-bit, 1 Msps), and CAPSENSE™ SNR (>5:1) - all critical for touch-enabled MCU selection and low-power system design.
Technical Context
The device integrates a single-core Arm Cortex-M0+ CPU with hardware multiply and tightly coupled flash/SRAM subsystems, enabling deterministic real-time execution. Its programmable analog subsystem includes two continuous-time opamps (CTB), dual low-power comparators active in Deep Sleep, and a 12-bit SAR ADC with differential input and channel sequencer support.
Digital flexibility is delivered via five TCPWM blocks supporting center-aligned PWM and quadrature decoding, three reconfigurable SCBs, and Smart I/O logic for pre-processing signals without CPU intervention. The CAPSENSE™ sigma-delta engine provides hardware-accelerated touch sensing with automatic SmartSense tuning and >5:1 SNR under wet conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz with single-cycle multiply - enables real-time control loops and efficient firmware execution. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for complex CAPSENSE™ + communication stacks with over-the-air update headroom. |
| ADC | 12-bit SAR, 1 Msps, differential mode - supports precision sensor acquisition and fast sampling for motor current sensing. |
| Capacitive Sensing | Sigma-delta CAPSENSE™ with >5:1 SNR and water tolerance - delivers robust touch button/slider performance in consumer and industrial enclosures. |
| Power Consumption | 2.5 µA in Deep Sleep with analog active - enables multi-year battery life in wake-on-touch applications. |
| GPIO Count | 36 programmable pins - all support CAPSENSE™, analog, or digital functions with configurable drive strength and slew rate. |
| Serial Interfaces | 3 × SCBs, each reconfigurable as I²C, SPI, or UART - eliminates need for external protocol translators in multi-peripheral systems. |
| PWM/Timers | 5 × 16-bit TCPWM blocks with kill-input triggering - supports motor control, LED dimming, and safety-critical timing with hardware fault response. |
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, including analog inputs, digital I/O, SCB signals, TCPWM outputs, and CAPSENSE™ electrodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Supports 1.71–5.5 V operation; multiple VDD/VSS pairs ensure stable core and I/O rail decoupling. |
| 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™ electrode, analog input/output, or digital function; drive strength up to 25 mA. |
| SWDCLK, SWDIO | Debug interface | Two-pin Serial Wire Debug for programming and real-time trace without dedicated JTAG pins. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; compatible with pushbutton or supervisor IC assertion. |
| WCO_IN / WCO_OUT | 32.768 kHz crystal oscillator | Enables precise RTC operation and low-power wake-up timing independent of main clock sources. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Two opamps with high-drive external and high-bandwidth internal modes - enable sensor signal conditioning, comparator hysteresis, and ADC input buffering without external components. |
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration - eliminates manual tuning effort and maintains touch accuracy across temperature/humidity drift and PCB aging. |
| Deep Sleep with Analog Active | 2.5 µA system current with opamps/comparators running - allows continuous capacitive wake detection while preserving battery life in portable devices. |
| Programmable Digital Logic | Boolean logic on port inputs/outputs via Smart I/O - implements debounce, edge detection, or state machines without CPU cycles or external glue logic. |
| LCD Segment Drive | Direct GPIO-based segment drive capability - reduces BOM cost by eliminating dedicated LCD driver ICs in simple display applications. |
Applications
| Home Appliance Control Panel | Industrial HMI Touch Interface |
|---|---|
Use Scenario: Touch-sensitive control panel on washing machine or oven with waterproof overlay and LED feedback. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scanning, LED PWM dimming, and serial communication to main controller. Use Value: >5:1 SNR and SmartSense enable reliable touch detection through 3 mm glass with condensation, reducing field failure rates. |
Use Scenario: Ruggedized operator terminal in factory automation with ESD-prone environment and frequent glove use. IC Role / Device Role / Timing Role: Real-time touch coordinator interfacing with PLC via UART and driving local status indicators. Use Value: Deep Sleep + active comparators allow immediate wake-on-touch response (<10 ms), improving operator responsiveness. |
| Medical Patient Monitor Front Panel | Smart Thermostat User Interface |
Use Scenario: Low-power bedside monitor with capacitive buttons and biometric sensor interface. IC Role / Device Role / Timing Role: Sensor hub aggregating analog front-end data (ECG, SpO₂) and managing touch UI with secure boot. Use Value: Integrated 12-bit SAR ADC with sequencer and signal averaging reduces external signal chain complexity and improves measurement repeatability. |
Use Scenario: Battery-powered HVAC thermostat with ambient light adaptive display and humidity-compensated touch. IC Role / Device Role / Timing Role: Standalone environmental controller using internal temperature sensor, CAPSENSE™, and LCD drive. Use Value: Single-chip integration of sensing, UI, and display eliminates 3–4 discrete ICs, cutting PCB area by 35% and BOM cost by ~$1.20. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S433 | Same architecture, 128 KB flash, 16 KB SRAM, identical pinout - higher memory for larger firmware or OTA storage. | Required when firmware exceeds 64 KB or needs dual-bank flash for safe updates. | Select for future-proofing or complex BLE/Wi-Fi stack integration where memory headroom is critical. |
| STM32F072RBT6 | Arm Cortex-M0, 48 MHz, 128 KB flash, 16 KB SRAM, no integrated CAPSENSE™ - requires external touch controller or GPIO-based RC sensing. | Suitable for non-touch applications or where discrete touch ICs are already standardized in design. | Choose only if CAPSENSE™ is unnecessary and existing STM32 toolchain familiarity outweighs analog integration benefits. |
Compared with CY8C4146AZI-S423, CY8C4147AZI-S433 offers scalable memory without changing layout, while STM32F072RBT6 trades off integrated capacitive sensing for broader ecosystem support - making the former ideal for touch-centric upgrades and the latter better suited for cost-sensitive, non-touch control nodes.
Availability
CY8C4146AZI-S423 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI interfaces, and smart thermostat user interfaces requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4146AZI-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, automotive MCUs, and security solutions, with global manufacturing and quality certifications including ISO/TS 16949 and AEC-Q100.
CY8C4146AZI-S423 belongs to the PSoC™ 4100S product line - designed specifically for cost-sensitive, low-power embedded systems requiring integrated capacitive touch, analog signal conditioning, and flexible digital logic without external components.
FAQ
Does CY8C4146AZI-S423 support USB connectivity?
No, CY8C4146AZI-S423 does not include a USB PHY or controller. It relies on its three SCB modules for I²C, SPI, or UART communication. For USB host/device functionality, an external USB-to-UART bridge (e.g., CP2102) or migration to a PSoC™ 4 BLE or PSoC™ 6 device is required.
What development tools are officially supported for this part?
Infineon officially supports ModusToolbox™ (v3.x+) and legacy PSoC™ Creator (v4.4) for CY8C4146AZI-S423. Both provide CAPSENSE™ Tuner, PDL drivers, BSPs, and code generation for TCPWM, SCB, and ADC peripherals - with ModusToolbox™ recommended for new designs due to ongoing updates and GitHub-hosted middleware.
Is the 48-lead TQFP package RoHS and REACH compliant?
Yes, CY8C4146AZI-S423 in the 48LD TQFP package meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free matte tin finish and halogen-free molding compound - documented in Infineon's Material Declaration Report (MDR) #PSOC4100S-TQFP-48-2023.
Can the internal opamps drive a 100 Ω load directly?
No - the CTB opamps are specified for ≤10 kΩ loads in high-drive mode (±25 mA short-circuit current). Driving 100 Ω would exceed safe operating limits and cause thermal shutdown or output saturation. For low-impedance loads, external buffer amplifiers or dedicated driver ICs must be used.
CY8C4146AZI-S423 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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, 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-S423 FAQ
1.How can I place an order for CY8C4146AZI-S423 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZI-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 CY8C4146AZI-S423 reliable?
The price and inventory of CY8C4146AZI-S423 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZI-S423 is usually 5 days.
3.What payment methods are accepted for CY8C4146AZI-S423?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZI-S423 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZI-S423?
CY8C4146AZI-S423 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZI-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 CY8C4146AZI-S423?
For technical support, including CY8C4146AZI-S423 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZI-S423 requirements.
6.How does Aetrix verify that CY8C4146AZI-S423 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZI-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 CY8C4146AZI-S423 meets industry standards.
7.What is the process for return or replacement of CY8C4146AZI-S423?
All CY8C4146AZI-S423 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZI-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 CY8C4146AZI-S423 part is unused and in its original packaging.
Return procedure for CY8C4146AZI-S423:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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