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Infineon Technologies CY8C4124AZI-S433
- Part No.:
- CY8C4124AZI-S433
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4124AZI-S433.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,923
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Product details
Overview
CY8C4124AZI-S433 from Infineon is a programmable 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 32 KB flash, 4 KB SRAM, integrated CAPSENSE™ capacitive sensing, and reconfigurable analog/digital blocks. It supports 1.71–5.5 V operation, deep-sleep mode at 2.5 µA, and drives up to 36 GPIOs in touch, analog, or digital roles - deployed in human-interface consumer electronics and industrial control panels.
For engineers reviewing the CY8C4124AZI-S433 datasheet, CY8C4124AZI-S433 pinout, CY8C4124AZI-S433 application, or CY8C4124AZI-S433 equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options for embedded system design and BOM optimization.
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ core with dedicated PSoC™ 4100S architecture, enabling concurrent execution of firmware logic and hardware-reconfigurable peripherals. Its analog subsystem includes two opamps (CTB), a 12-bit 1-Msps SAR ADC, and dual low-power comparators - all operable in Deep Sleep mode.
Digital flexibility comes from three run-time reconfigurable serial communication blocks (SCBs) supporting I²C/SPI/UART, five TCPWM units with quadrature decode and comparator-triggered kill signals, and programmable logic blocks for Boolean port-level operations - all routed via automatic interconnect fabric.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz with single-cycle multiply - enables deterministic real-time control without software overhead. |
| Memory | 32 KB flash (read accelerator enabled) + 4 KB SRAM - sufficient for CAPSENSE™ firmware, sensor fusion, and communication stacks. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC (differential/single-ended), two CTB opamps, two LPCs, two IDACs - supports simultaneous touch sensing and analog signal conditioning. |
| Capacitive Sensing | CAPSENSE™ sigma-delta engine with >5:1 SNR and water-tolerant operation - eliminates external noise filtering components in wet-environment HMI designs. |
| Power Efficiency | Deep Sleep current = 2.5 µA with analog active - enables battery-powered touch interfaces with multi-year runtime on coin cells. |
| GPIO & Routing | 36 programmable pins with configurable drive strength/slew rate; any pin supports CAPSENSE™, analog, or digital functions - simplifies PCB layout and reduces layer count. |
| Clock Sources | Internal IMO (±2%), ILO (32 kHz), and WCO support - allows accurate timing without external crystals in cost-sensitive applications. |
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 | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and GPIO drivers - decoupling required per datasheet Section 4.1. |
| VSS | Digital ground | Primary reference for digital logic and SCB peripherals; separate analog ground routing recommended for SAR ADC accuracy. |
| XRES | Active-low reset | Asynchronous reset input; internal pull-up; compatible with pushbutton or supervisor IC assertion. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) for programming and real-time debugging - no JTAG header needed. |
| P0[0]–P0[7] | General-purpose I/O | Support CAPSENSE™, analog input/output, or digital logic; configurable slew rate and drive strength - used for button/slider scanning or sensor interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated CAPSENSE™ | Sigma-delta sensing engine with SmartSense auto-tuning - eliminates manual calibration effort and ensures robust performance across temperature/humidity variations. |
| Reconfigurable analog blocks | Two continuous-time opamps with high-drive external and high-bandwidth internal modes - enables flexible sensor signal chain design without external opamp ICs. |
| Runtime-reconfigurable SCBs | Three serial blocks independently switchable between I²C, SPI, or UART protocols - reduces BOM count when multiple interface types are needed in one design. |
| Deep Sleep with analog active | 2.5 µA system current while SAR ADC and comparators remain operational - enables wake-on-touch or wake-on-threshold events without full MCU wake-up latency. |
| Programmable digital logic | Boolean logic blocks perform AND/OR/XOR on port inputs/outputs - implements glue logic (e.g., interrupt masking, status aggregation) in hardware, not firmware. |
Applications
| Consumer Touch Panel | Industrial HMI Keypad |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on appliance control panels exposed to moisture and ESD. IC Role / Device Role / Timing Role: Primary MCU and CAPSENSE™ controller; handles touch scan, debounce, gesture recognition, and local UI response. Use Value: Water-tolerant sigma-delta sensing and >5:1 SNR eliminate false triggers during condensation or splashing - reducing field returns. |
Use Scenario: Ruggedized operator interface for PLC-mounted machinery with metal bezel and glove operation. IC Role / Device Role / Timing Role: Real-time touch processor with integrated TCPWM for LED dimming feedback and SCB for Modbus RTU communication. Use Value: Single-chip integration of touch, timing, and serial protocol reduces component count and improves EMC robustness in noisy factory environments. |
| Smart Thermostat Interface | Medical Device Control Panel |
Use Scenario: Battery-powered wall-mounted thermostat with capacitive slider for temperature adjustment and touch buttons for mode selection. IC Role / Device Role / Timing Role: Low-power system controller managing CAPSENSE™, ambient temperature sensing (via internal sensor), and LCD segment drive. Use Value: 2.5 µA Deep Sleep with active analog blocks enables >5-year coin-cell life while maintaining instant wake-on-touch responsiveness. |
Use Scenario: Touch-enabled diagnostic equipment control panel requiring IEC 60601-1 compliance and ESD immunity. IC Role / Device Role / Timing Role: Safety-critical HMI controller with isolated communication (via SCB + external isolator) and redundant touch validation logic. Use Value: Programmable logic blocks implement hardware-level touch validation (e.g., dual-sensor correlation), reducing firmware certification burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller with capacitive sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4024LQI-S412 | Lower memory (16 KB flash / 2 KB SRAM); no TCPWM blocks; 24 GPIOs; same CAPSENSE™ engine. | Suitable for simpler touch-only applications without motor control or complex timing. | Select when BOM cost reduction is critical and peripheral count can be reduced without compromising touch performance. |
| CY8C4125AZI-S433 | Same package and pinout; higher memory (64 KB flash / 8 KB SRAM); identical peripheral set. | Enables larger firmware (e.g., BLE stack + CAPSENSE™ + OTA) without changing PCB layout. | Choose for future-proofing or when firmware complexity exceeds 32 KB flash capacity. |
Compared with CY8C4124AZI-S433, CY8C4024LQI-S412 trades memory and timing resources for lower unit cost, while CY8C4125AZI-S433 offers direct pin-compatible scalability - both preserve CAPSENSE™ performance and low-power operation.
Availability
CY8C4124AZI-S433 is available at Aetrix Electronics and suitable for consumer HMI, industrial control panels, and medical device interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CY8C4124AZI-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 embedded systems - with global manufacturing and quality certifications including ISO/TS 16949 and ISO 9001.
CY8C4124AZI-S433 belongs to the PSoC™ 4100S product line, designed specifically for cost-sensitive, low-power human-machine interface applications requiring integrated capacitive sensing, analog signal conditioning, and flexible digital logic - without external component dependencies.
FAQ
What development tools support CY8C4124AZI-S433?
Infineon provides full toolchain support via ModusToolbox™ (multi-platform IDE with CAPSENSE™ Tuner, PDL, and middleware) and legacy PSoC™ Creator. Both enable schematic-based design, automatic peripheral configuration, and hardware-accelerated CAPSENSE™ tuning - no custom driver development required for basic touch functionality.
Does CY8C4124AZI-S433 support hardware-based touch authentication?
Yes - its programmable digital logic blocks and dual low-power comparators allow implementation of hardware-enforced touch pattern validation (e.g., multi-point sequence detection) independent of CPU execution. This supports tamper-resistant UI designs where firmware-based checks could be bypassed.
Can the SAR ADC operate during Deep Sleep mode?
Yes - the 12-bit SAR ADC remains fully functional in Deep Sleep mode with 2.5 µA system current. It supports channel sequencing, signal averaging, and hardware-triggered conversions (e.g., from comparator output), enabling ultra-low-power sensor monitoring without waking the CPU.
Is external crystal required for accurate timing?
No - the device includes a ±2% internal main oscillator (IMO), 32 kHz internal low-power oscillator (ILO), and optional 32 kHz watch crystal oscillator (WCO). For CAPSENSE™ and general-purpose timing, the IMO is sufficient; WCO is only needed for RTC-grade accuracy or regulatory clock stability requirements.
CY8C4124AZI-S433 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:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
CY8C4124AZI-S433 FAQ
1.How can I place an order for CY8C4124AZI-S433 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4124AZI-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 CY8C4124AZI-S433 reliable?
The price and inventory of CY8C4124AZI-S433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4124AZI-S433 is usually 5 days.
3.What payment methods are accepted for CY8C4124AZI-S433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4124AZI-S433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4124AZI-S433?
CY8C4124AZI-S433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4124AZI-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 CY8C4124AZI-S433?
For technical support, including CY8C4124AZI-S433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4124AZI-S433 requirements.
6.How does Aetrix verify that CY8C4124AZI-S433 is sourced from the original manufacturer or authorized distributors?
All CY8C4124AZI-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 CY8C4124AZI-S433 meets industry standards.
7.What is the process for return or replacement of CY8C4124AZI-S433?
All CY8C4124AZI-S433 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4124AZI-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 CY8C4124AZI-S433 part is unused and in its original packaging.
Return procedure for CY8C4124AZI-S433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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