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Infineon Technologies CY8C4124PVI-432
- Part No.:
- CY8C4124PVI-432
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4124PVI-432.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,578
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Product details
Overview
CY8C4124PVI-432 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M0 programmable system-on-chip (PSoC® 4100 family) featuring 16 kB flash, 2 kB SRAM, 12-bit 806 ksps SAR ADC, two opamps with comparator mode, and two SCB blocks supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and supports Deep Sleep mode with 20 nA current draw, targeting capacitive touch HMI in industrial control panels.
For engineers reviewing the CY8C4124PVI-432 datasheet, CY8C4124PVI-432 pinout, CY8C4124PVI-432 application, or CY8C4124PVI-432 equivalent, key selection criteria include its 48-pin TQFP package, CapSense Sigma-Delta (CSD) support with >5:1 SNR, integrated LCD drive capability, and SWD debug interface compatibility with industry-standard Arm tools.
Technical Context
The device integrates a single-core Arm Cortex-M0 CPU running at up to 24 MHz with single-cycle multiply, coupled with programmable analog (two opamps, 12-bit SAR ADC, two IDACs) and digital (four TCPWM blocks, two SCBs) subsystems routed via a flexible interconnect matrix. Its power architecture enables five low-power modes including Hibernate with SRAM retention and Stop mode at 20 nA.
Capacitive sensing is implemented via dedicated CSD hardware with SmartSense™ auto-tuning, while timing and communication are handled by reconfigurable peripherals: SCBs support runtime switching between I²C, SPI, and UART protocols, and TCPWM blocks offer center-aligned PWM, kill-signal triggering, and pseudo-random modulation for motor control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0, 24 MHz max - enables deterministic real-time control with Thumb-2 instruction set compatibility for future migration to M3/M4. |
| Flash / SRAM | 16 kB flash / 2 kB SRAM - sufficient for firmware + CapSense tuning tables and sensor data buffering without external memory. |
| ADC | 12-bit SAR, 806 ksps, differential input - supports high-resolution analog monitoring of temperature, voltage, or current sensors. |
| Opamps | 2 × rail-to-rail opamps with comparator mode - usable for signal conditioning, threshold detection, or ADC input buffering. |
| Power Range | 1.71 V to 5.5 V - allows direct interfacing with 3.3 V or 5 V logic and battery-powered operation down to coin-cell voltages. |
| Low-Power Mode | 20 nA Stop mode with GPIO wakeup - enables ultra-low-power wake-on-touch in battery-operated HMIs. |
| SCBs | 2 × reconfigurable serial blocks - each can be independently assigned as I²C master/slave, SPI master/slave, or UART, reducing BOM count. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary power domain inputs; decoupling required per datasheet layout guidelines for stable analog/digital operation. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIO | All 36 pins support CapSense, analog input/output, LCD segment/common, or digital logic with configurable drive strength/slew rate. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) interface - enables full on-chip debugging and flash programming using standard Arm tools. |
| XRES | External reset | Active-low asynchronous reset input - used for system-level recovery or watchdog-triggered restart. |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Supports optional 1–33 MHz crystal for precise clocking; internal IMO (4/8/12/24 MHz) is factory-calibrated and default. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense CSD Hardware | Dedicated sigma-delta modulator with >5:1 SNR and water-tolerant scanning - eliminates need for external touch controller IC in wet-environment HMIs. |
| SmartSense™ Auto-Tuning | Firmware-controlled automatic calibration of sensor baseline, sensitivity, and noise thresholds - reduces firmware development time and field recalibration effort. |
| Reconfigurable SCBs | Two independent serial communication blocks that can be dynamically reassigned at runtime - enables flexible peripheral allocation without hardware redesign. |
| LCD Drive Support | Segment and common drive on all GPIO pins with 4-bit memory per pin in Deep Sleep - allows low-power segmented display control without external driver. |
| Flash Protection Modes | Open / Protected / Kill - provides graduated security: Protected disables debug access; Kill permanently disables external erase and debug, preventing reverse engineering. |
Applications
| Industrial Control Panel | Smart Appliance HMI |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panel operating in harsh EMI environments. IC Role / Device Role / Timing Role: Main MCU executing CapSense firmware, driving 4-digit segmented LCD, and communicating via I²C to temperature/pressure sensor array. Use Value: Integrated CSD hardware with >5:1 SNR ensures reliable touch detection despite electrical noise; Deep Sleep mode extends battery backup life during idle periods. | Use Scenario: Wash-cycle status display and button interface on front-loading washing machine with splash-resistant overlay. IC Role / Device Role / Timing Role: System controller managing CapSense buttons, LCD segments, motor PWM via TCPWM blocks, and UART communication to main MCU. Use Value: SmartSense™ auto-tuning maintains consistent touch response across varying humidity levels; 20 nA Stop mode enables long-term standby without battery drain. |
| Medical Device Keypad | IoT Edge Sensor Node |
Use Scenario: Disinfectant-resistant touch keypad on portable patient monitor requiring FDA-compliant reliability. IC Role / Device Role / Timing Role: Dedicated HMI processor handling capacitive keys, LED indicators, and isolated I²C to analog front-end (AFE) for vital sign acquisition. Use Value: Flash Kill mode prevents unauthorized firmware modification; integrated opamps condition AFE signals without external components. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality with wireless upload. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data via SAR ADC and I²C, storing calibrated values in flash, and waking radio only on event trigger. Use Value: 12-bit ADC with channel sequencer and signal averaging improves measurement accuracy; 2 kB SRAM retains sensor history across Deep Sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4124LQI-433 | Same core and peripherals but in 40-pin QFN package; lacks 4 GPIOs and one SCB compared to CY8C4124PVI-432. | Suitable for space-constrained designs where fewer interfaces and smaller footprint are prioritized over LCD drive or dual SCB flexibility. | Select when board area is critical and full 36-GPIO or dual-SCB functionality is not required. |
| CY8C4245FNI-483 | Higher flash (32 kB) and SRAM (4 kB); adds USBFS block and extra TCPWM; same 48-pin TQFP package. | Required for designs needing USB connectivity, larger firmware image, or additional PWM channels for multi-motor control. | Choose when USB host/device capability or expanded memory is essential - not a drop-in replacement due to different peripheral mapping. |
Compared with CY8C4124LQI-433 and CY8C4245FNI-483, the CY8C4124PVI-432 offers optimal balance of CapSense performance, LCD drive, dual SCB flexibility, and 48-pin TQFP layout in cost-sensitive industrial HMI applications - avoiding unnecessary USB overhead or package downsizing trade-offs.
Availability
CY8C4124PVI-432 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance HMIs, medical keypad interfaces, and IoT edge sensor nodes requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY8C4124PVI-432 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, specializing in power management, automotive, industrial, and security solutions with strong IP in embedded controllers and analog integration.
This device belongs to the PSoC® 4100 family - designed specifically for cost-sensitive, low-power human-machine interface applications requiring integrated capacitive sensing, LCD drive, and flexible communication without external glue logic.
FAQ
What debug interface does CY8C4124PVI-432 support?
CY8C4124PVI-432 uses the Arm Serial Wire Debug (SWD) interface with two dedicated pins (SWDIO and SWCLK). It supports full on-chip debugging, flash programming, and real-time trace via standard Arm-compliant tools like Segger J-Link or CMSIS-DAP adapters. Debug is enabled by default and can be disabled in firmware using flash protection settings.
Does CY8C4124PVI-432 support external crystal oscillators?
Yes - it supports external crystals from 1 MHz to 33 MHz connected to XTAL_IN/XTAL_OUT pins. The internal IMO (Internal Main Oscillator) is factory-calibrated to ±2% accuracy at 24 MHz and serves as the default clock source. Crystal use is optional and typically selected for higher timing precision in communication or ADC sampling applications.
Can CY8C4124PVI-432 drive an LCD without external components?
Yes - it supports static and multiplexed LCD drive on any GPIO pin, with built-in charge pump and 4-bit memory per pin retained in Deep Sleep mode. Up to 48 segments and 4 commons can be driven directly, eliminating the need for external LCD drivers in basic alphanumeric or icon-based displays.
How many CapSense electrodes can CY8C4124PVI-432 support?
The device supports up to 32 self-capacitive or 16 mutual-capacitive electrodes using its dedicated CSD hardware block. Electrode count depends on scan speed, SNR requirements, and routing constraints - typical implementations achieve 12–24 robust buttons with SmartSense™ tuning under noisy conditions.
CY8C4124PVI-432 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C4100
- Packaging:
- Tube
- 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, 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-432 FAQ
1.How can I place an order for CY8C4124PVI-432 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4124PVI-432 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-432 reliable?
The price and inventory of CY8C4124PVI-432 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4124PVI-432 is usually 5 days.
3.What payment methods are accepted for CY8C4124PVI-432?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4124PVI-432 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4124PVI-432?
CY8C4124PVI-432 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4124PVI-432 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-432?
For technical support, including CY8C4124PVI-432 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4124PVI-432 requirements.
6.How does Aetrix verify that CY8C4124PVI-432 is sourced from the original manufacturer or authorized distributors?
All CY8C4124PVI-432 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-432 meets industry standards.
7.What is the process for return or replacement of CY8C4124PVI-432?
All CY8C4124PVI-432 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4124PVI-432, 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-432 part is unused and in its original packaging.
Return procedure for CY8C4124PVI-432:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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