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Infineon Technologies CY8C4146AZI-S423T
- Part No.:
- CY8C4146AZI-S423T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4146AZI-S423T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,462
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Product details
Overview
CY8C4146AZI-S423T 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 reconfigurable serial communication blocks (I²C/SPI/UART), and delivers 12-bit 1-Msps SAR ADC performance for embedded human-interface and sensor-fusion applications.
For engineers reviewing the CY8C4146AZI-S423T datasheet, CY8C4146AZI-S423T pinout, CY8C4146AZI-S423T application, or CY8C4146AZI-S423T equivalent, key selection criteria include deep-sleep current consumption, CAPSENSE™ SNR (>5:1), TCPWM quadrature decoding capability, and GPIO flexibility across 36 pins with programmable drive strength and slew rate.
Technical Context
This device integrates a fixed-function Arm® Cortex®-M0+ core with configurable analog (opamps, comparators, 12-bit SAR ADC, IDACs) and digital (TCPWM, SCB, PLD) peripherals on a single die. Its clock system includes ±2% IMO, 32 kHz ILO, and WCO support - enabling precise timing control in low-power touch interfaces.
The CAPSENSE™ sigma-delta engine provides hardware-accelerated capacitive sensing with SmartSense auto-tuning and water tolerance, while five TCPWM blocks support center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor control safety logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - enables real-time deterministic execution for mixed-signal control loops. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for firmware with CAPSENSE™ middleware and communication stacks. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended - supports high-resolution sensor acquisition without external signal conditioning. |
| Low-Power Mode | Deep Sleep current = 2.5 µA - sustains capacitive wake-up functionality while minimizing battery drain. |
| CAPSENSE™ | Sigma-delta architecture with >5:1 SNR and water tolerance - enables robust touch buttons/sliders in consumer and industrial enclosures. |
| GPIO | 36 programmable pins with configurable drive modes, strengths, and slew rates - allows direct interface to LEDs, sensors, and legacy peripherals. |
| Serial Interfaces | 3 × SCBs supporting I²C/SPI/UART concurrently - eliminates need for external protocol translators in multi-peripheral systems. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O with CAPSENSE™/analog/digital capability | Supports simultaneous touch sensing, ADC input buffering, and digital logic routing via internal analog/digital buses. |
| P1[0]–P1[7] | General-purpose I/O with LCD segment drive capability | Enables direct driving of up to 16-segment LCD displays without external drivers. |
| SCB[0]–SCB[2] | Reconfigurable serial interface terminals (SCL/SDA, MOSI/MISO/SCLK, TX/RX) | Each SCB can be independently assigned as I²C master/slave, SPI master/slave, or UART TX/RX - simplifies board layout reuse. |
| TCPWM[0]–TCPWM[4] | Timer/Counter/PWM signal I/O (PWM_OUT, QUAD_A, QUAD_B, KILL) | Hardware quadrature decoding and comparator-triggered kill outputs enable safe, low-latency motor control without CPU intervention. |
| VDD/VSS | Power supply and ground | Operates over 1.71–5.5 V - supports direct connection to Li-ion, USB, or industrial 3.3/5 V rails without LDO pre-regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps with high-drive external and high-bandwidth internal modes - enable active filtering, sensor biasing, and ADC input buffering in Deep Sleep. |
| Capacitive Sensing Engine | Sigma-delta CSD with automatic SmartSense tuning - reduces firmware development time for touch UIs and eliminates manual calibration. |
| Reconfigurable Digital Logic | PLD blocks performing Boolean operations on port inputs/outputs - implement glue logic (e.g., interrupt arbitration, signal masking) without CPU overhead. |
| Flexible Clock System | IMO (±2%), ILO (32 kHz), and WCO support - allows trade-offs between accuracy, power, and cost across sleep/wake states. |
| Low-Power Operation | 2.5 µA Deep Sleep with operational analog - maintains touch wake-up readiness while extending battery life in portable devices. |
Applications
| Smart Home Control Panel | Industrial HMI Terminal |
|---|---|
|
Use Scenario: Wall-mounted touch interface for HVAC, lighting, and security control in residential environments. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ touch detection, local decision logic, and UART-based communication to gateway controller. Use Value: Water-tolerant sigma-delta sensing ensures reliable operation near sinks or humid areas; 2.5 µA Deep Sleep extends battery life in wireless variants. |
Use Scenario: Ruggedized panel with segmented LCD display and tactile feedback for factory floor equipment monitoring. IC Role / Device Role / Timing Role: System controller managing LCD segment drive, button debouncing, CAN/I²C peripheral interfacing, and watchdog supervision. Use Value: Integrated LCD driver eliminates external display controller; TCPWM quadrature decoding supports encoder-based navigation wheels. |
| Portable Medical Sensor Hub | White Goods Appliance Interface |
|
Use Scenario: Battery-powered wearable or handheld device aggregating ECG, temperature, and motion data. IC Role / Device Role / Timing Role: Signal acquisition hub using SAR ADC for analog biosensors and IDACs for electrode excitation in impedance measurements. Use Value: 12-bit 1-Msps ADC captures transient physiological waveforms; programmable opamp modes enable front-end gain/anti-aliasing configuration. |
Use Scenario: Touch-enabled washing machine or oven control with water-resistant overlay and status LED indicators. IC Role / Device Role / Timing Role: CAPSENSE™ touch processor with LED dimming via TCPWM and buzzer tone generation using timer interrupts. Use Value: Single-chip integration replaces discrete touch controller + LED driver + buzzer IC, reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S433 | Same PSoC™ 4100S family; 128 KB flash, 16 KB SRAM, identical peripheral set and package | Required when firmware size exceeds 64 KB or additional RAM is needed for complex middleware stacks | Select for future-proofing firmware growth or integrating larger RTOS components. |
| CY8C4046LQI-S412 | PSoC™ 4000S family; 32 KB flash, 4 KB SRAM, no CAPSENSE™ sigma-delta block, lower-cost QFN-32 package | Suitable only for basic GPIO/timing applications without advanced touch or analog sensing | Choose only if CAPSENSE™ SNR, water tolerance, or >64 KB code space are not required. |
Compared with CY8C4147AZI-S433, this part offers lower memory density but identical CAPSENSE™ performance and power efficiency; versus CY8C4046LQI-S412, it delivers superior analog sensing fidelity and larger firmware headroom at modest cost premium.
Availability
CY8C4146AZI-S423T is available at Aetrix Electronics and suitable for smart home control panels, industrial HMIs, portable medical sensor hubs, and white goods appliance interfaces requiring stable component supply and long-term design-in support.
Supply support for CY8C4146AZI-S423T 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 manufacturing and quality certifications including ISO 9001 and IATF 16949.
This device 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-S423T support USB connectivity?
No. This device does not include a USB PHY or dedicated USB controller. Communication is limited to I²C, SPI, and UART via its three SCB modules. For USB host/device functionality, external bridge ICs or migration to PSoC™ 4 BLE or PSoC™ 6 families is required.
Can the SAR ADC perform simultaneous sampling on multiple channels?
No. The 12-bit SAR ADC uses a single conversion core with a channel sequencer and signal averaging capability, but it performs sequential conversions - not true simultaneous sampling. Multi-channel acquisition requires time-multiplexed sequencing with software-controlled trigger alignment.
What debug interface does CY8C4146AZI-S423T use?
It uses a 2-pin Serial Wire Debug (SWD) interface compliant with ARM CoreSight standards. SWD supports full JTAG-equivalent debugging, flash programming, and real-time variable inspection through IDEs like ModusToolbox™ and PSoC™ Creator.
Is the CAPSENSE™ block certified for IEC 61000-4-3/6 immunity testing?
Yes. Infineon provides CAPSENSE™ design guides and layout recommendations validated to meet IEC 61000-4-3 (radiated immunity) and IEC 61000-4-6 (conducted immunity) up to Level 3, with reference designs demonstrating >10 V/m performance under standard test conditions.
CY8C4146AZI-S423T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- 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:
- 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-S423T FAQ
1.How can I place an order for CY8C4146AZI-S423T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZI-S423T 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-S423T reliable?
The price and inventory of CY8C4146AZI-S423T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZI-S423T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZI-S423T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZI-S423T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZI-S423T?
CY8C4146AZI-S423T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZI-S423T 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-S423T?
For technical support, including CY8C4146AZI-S423T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZI-S423T requirements.
6.How does Aetrix verify that CY8C4146AZI-S423T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZI-S423T 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-S423T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZI-S423T?
All CY8C4146AZI-S423T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZI-S423T, 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-S423T part is unused and in its original packaging.
Return procedure for CY8C4146AZI-S423T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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