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Infineon Technologies CY8C4124PVI-442T
- Part No.:
- CY8C4124PVI-442T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4124PVI-442T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:182
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Product details
Overview
CY8C4124PVI-442T from Infineon Technologies (formerly Cypress) is a 32-bit Arm Cortex-M0 programmable system-on-chip (PSoC® 4100 family) integrating MCU, reconfigurable analog/digital blocks, 12-bit SAR ADC, two opamps, and two SCBs supporting I²C/SPI/UART. It delivers 24 MHz CPU performance with up to 32 kB flash and 4 kB SRAM, operating from 1.71 V to 5.5 V across –40 °C to +105 °C. Used in industrial HMI, capacitive touch interfaces, and embedded control systems requiring mixed-signal flexibility.
For engineers reviewing the CY8C4124PVI-442T datasheet, CY8C4124PVI-442T pinout, CY8C4124PVI-442T application, or CY8C4124PVI-442T equivalent, key selection criteria include its 44-pin TQFP package, CapSense Sigma-Delta (CSD) support with >5:1 SNR, Deep Sleep current of 20 nA, dual SCB configurability, and hardware-accelerated SmartSense™ auto-tuning for robust touch sensing in noisy environments.
Technical Context
The device implements a single-layer AHB-Lite interconnect linking the Cortex-M0 core, SRAM, flash with Read Accelerator, and programmable analog/digital subsystems. Its analog resources include a 12-bit 806 ksps SAR ADC with channel sequencer and signal averaging, two opamps configurable as comparators or ADC input buffers, and two low-power comparators active in Deep Sleep mode.
Digital flexibility stems from four 16-bit TCPWM blocks supporting center-aligned, edge-aligned, and pseudo-random PWM modes, plus two serial communication blocks (SCBs) that are runtime-reconfigurable between I²C, SPI, and UART protocols - enabling dynamic peripheral adaptation without firmware reload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0 @ 24 MHz with single-cycle 32-bit multiply - enables deterministic real-time control and binary upward compatibility with Cortex-M3/M4. |
| Flash / SRAM | 32 kB flash with Read Accelerator (0-wait-state at 24 MHz); 4 kB SRAM retained in Hibernate - supports complex firmware with fast execution and state persistence during ultra-low-power sleep. |
| ADC | 12-bit SAR ADC, 806 ksps, differential/single-ended, with channel sequencer and hardware signal averaging - enables high-resolution sensor acquisition with noise rejection in industrial monitoring. |
| Analog Peripherals | Two opamps (reconfigurable as comparator or ADC buffer); two low-power comparators active in Deep Sleep - allows always-on analog threshold detection with sub-µA quiescent current. |
| Communication | Two SCBs, each runtime-configurable as I²C, SPI, or UART - eliminates need for multiple fixed-function peripherals and simplifies protocol switching in field-upgradable devices. |
| Power Modes | Stop Mode @ 20 nA, Deep Sleep @ 1.3 µA, Hibernate with SRAM retention - meets stringent energy budgets for battery-powered industrial sensors and remote controls. |
| Capacitive Sensing | Cypress CapSense Sigma-Delta (CSD) with >5:1 SNR and SmartSense™ auto-tuning - delivers reliable touch button/slider operation under water, gloves, or EMI-rich factory environments. |
Pinout & Package
CY8C4124PVI-442T is housed in a 44-pin TQFP (Thin Quad Flat Package) with 0.8 mm pitch, exposing 36 GPIOs - all configurable for CapSense, LCD drive, analog input/output, or digital logic. The package supports industrial temperature range (–40 °C to +105 °C) and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local decoupling per datasheet layout guidelines. |
| VSS | Ground reference | Digital and analog ground plane connection point; must be low-impedance and separated from noisy return paths. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up; compatible with open-drain or push-pull reset sources. |
| SWDCLK / SWDIO | Serial Wire Debug interface | Two-pin debug port supporting full programming, breakpoint, and watchpoint debugging without JTAG overhead. |
| P0[0]–P0[7] | Port 0 GPIO bank | All pins support CapSense, analog input/output, LCD segment/common, and programmable drive strength/slew rate. |
| SCB0_SDA / SCB0_SCL | I²C interface signals | Configurable as open-drain with internal pull-ups; default I²C address 0x55; supports standard/fast-mode speeds. |
| SCB1_MOSI / SCB1_MISO / SCB1_SCLK | SPI interface signals | Full-duplex master/slave SPI; supports clock polarity/phase configuration and DMA-triggered transfers. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Two opamps + two comparators + 12-bit SAR ADC enable mixed-signal signal conditioning and measurement on-chip - eliminating external opamp/ADC components in sensor front-ends. |
| CapSense CSD with SmartSense™ | Hardware-accelerated auto-tuning adjusts sensitivity and baseline dynamically - reduces firmware development time and improves reliability across production variance and environmental drift. |
| Runtime-Reconfigurable SCBs | Each SCB can switch between I²C/SPI/UART via register write - allows single hardware design to support multiple host interface requirements without PCB revision. |
| Deep Sleep with Peripheral Retention | Low-power comparators and CapSense block remain active while CPU and flash are powered down - enables wake-on-touch or wake-on-threshold events with <2 µA total current. |
| Flash Security Options | Open/Protected/Kill modes with row-level read/write protection - prevents unauthorized firmware extraction or malicious reprogramming in deployed industrial controllers. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panels exposed to vibration, dust, and EMI. IC Role / Device Role / Timing Role: Primary controller executing CapSense scanning, LCD segment driving, and Modbus RTU over SCB1 UART. Use Value: CSD's >5:1 SNR and water tolerance ensure reliable touch response even with condensation or glove use; Deep Sleep mode extends panel battery life during idle periods. | Use Scenario: Battery-powered temperature/humidity node transmitting data via I²C to gateway MCU every 10 seconds. IC Role / Device Role / Timing Role: Sensor aggregator with SAR ADC reading thermistor and humidity IC, then buffering and formatting data for I²C transmission. Use Value: 20 nA Stop Mode minimizes quiescent draw between measurements; hardware signal averaging reduces need for oversampling in firmware. |
| Motor Control Interface | Embedded Power Supply Monitor |
Use Scenario: Compact motor driver board requiring fault detection, PWM generation, and isolated communication. IC Role / Device Role / Timing Role: Real-time PWM generator (TCPWM blocks), overcurrent comparator monitor, and UART-to-isolator bridge. Use Value: Comparator-based Kill signal triggers immediate PWM shutdown within nanoseconds - meeting IEC 61800-5-2 functional safety timing constraints. | Use Scenario: Monitoring 12 V DC input to industrial power supply with brown-out detection and logging. IC Role / Device Role / Timing Role: LVD-triggered interrupt source feeding event timestamp into SRAM ring buffer; ADC measures scaled input voltage. Use Value: On-chip LVD and POR circuits eliminate external supervisor IC; SRAM retention in Hibernate preserves last 100 fault events across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4125PVI-442 | Same PSoC 4100 family; 32 kB flash, 4 kB SRAM, identical pinout and peripherals - differs only in factory-programmed bootloader presence (CY8C4124 includes I²C bootloader). | No functional difference in user firmware execution; I²C bootloader enables field updates without SWD programmer. | Select CY8C4124PVI-442T when secure, pin-constrained I²C-based firmware updates are required in production units. |
| STM32F072RBT6 | Arm Cortex-M0, 128 kB flash, 16 kB SRAM, but fixed-function peripherals only - lacks reconfigurable analog/digital blocks and CapSense hardware acceleration. | Requires external components for touch sensing and analog signal conditioning; no hardware SmartSense™ or CSD engine. | Choose STM32F072RBT6 only if higher flash/SRAM capacity outweighs loss of analog programmability and touch integration. |
Compared with CY8C4125PVI-442, the CY8C4124PVI-442T adds factory-shipped I²C bootloader capability for secure field updates; versus STM32F072RBT6, it provides integrated CapSense and reconfigurable analog blocks - reducing BOM count and firmware complexity in touch-enabled embedded systems.
Availability
CY8C4124PVI-442T is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and motor control interfaces requiring stable component supply, extended temperature operation (–40 °C to +105 °C), and long-term lifecycle support.
Supply support for CY8C4124PVI-442T 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 global semiconductor leader headquartered in Munich, Germany, delivering power management, sensing, connectivity, and microcontroller solutions for automotive, industrial, and IoT markets.
This device belongs to the PSoC® 4100 family - designed specifically for cost-sensitive, mixed-signal embedded applications demanding programmable analog/digital logic, capacitive touch, and ultra-low-power operation in harsh environments.
FAQ
Does CY8C4124PVI-442T support USB connectivity?
No. This device does not include a USB PHY or USB controller. Communication is limited to the two SCBs supporting I²C, SPI, and UART protocols. For USB host/device functionality, designers must use an external USB-to-UART bridge IC or select a PSoC 4200L or PSoC 6 device with integrated USBFS.
What debug interfaces are available on CY8C4124PVI-442T?
The device features a two-wire Serial Wire Debug (SWD) interface (SWDCLK and SWDIO pins) supporting full programming, breakpoints, watchpoints, and real-time memory inspection. Debug is enabled by default and can be disabled in firmware; re-enabling requires full flash erase and reprogramming.
Can all 36 GPIOs be used simultaneously for CapSense?
No. While all GPIOs are CapSense-capable, the maximum number of simultaneous CapSense electrodes is limited by the CSD block's hardware resources - specifically, up to 32 buttons/sliders using mutual-capacitance or self-capacitance scanning, depending on resolution and scan speed settings defined in PSoC Creator.
Is the I²C bootloader pre-programmed and locked in CY8C4124PVI-442T?
Yes. The part ships with a factory-programmed, read-protected I²C bootloader in the first 2 kB of flash. It supports I²C address 0x55 and is configured to execute on power-up unless overridden by user firmware; bootloader memory region is write-protected by default.
CY8C4124PVI-442T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C4100
- Packaging:
- Tape & Reel (TR)
- 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:
- 24
- 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 8x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4124PVI-442T FAQ
1.How can I place an order for CY8C4124PVI-442T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4124PVI-442T 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 CY8C4124PVI-442T reliable?
The price and inventory of CY8C4124PVI-442T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4124PVI-442T is usually 5 days.
3.What payment methods are accepted for CY8C4124PVI-442T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4124PVI-442T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4124PVI-442T?
CY8C4124PVI-442T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4124PVI-442T 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 CY8C4124PVI-442T?
For technical support, including CY8C4124PVI-442T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4124PVI-442T requirements.
6.How does Aetrix verify that CY8C4124PVI-442T is sourced from the original manufacturer or authorized distributors?
All CY8C4124PVI-442T 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 CY8C4124PVI-442T meets industry standards.
7.What is the process for return or replacement of CY8C4124PVI-442T?
All CY8C4124PVI-442T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4124PVI-442T, 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 CY8C4124PVI-442T part is unused and in its original packaging.
Return procedure for CY8C4124PVI-442T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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