Infineon Technologies CY8C4124PVQ-442
- Part No.:
- CY8C4124PVQ-442
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4124PVQ-442.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 28SSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY8C4124PVQ-442 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 (806 ksps), two opamps with comparator mode, and two SCBs supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and supports Deep Sleep (20 nA) and Hibernate modes, targeting capacitive touch HMI in industrial control panels.
For engineers reviewing the CY8C4124PVQ-442 datasheet, CY8C4124PVQ-442 pinout, CY8C4124PVQ-442 application, or CY8C4124PVQ-442 equivalent, key selection criteria include its 44-pin TQFP package, 24 MHz CPU clock, 32 kB flash / 4 kB SRAM, CapSense® Sigma-Delta (CSD) support with >5:1 SNR, and dual low-power comparators active in Deep Sleep.
Technical Context
The device implements a single-layer AHB-Lite interconnect between the Cortex-M0 core and peripherals including TCPWM, SCB, SAR ADC, and CTBm analog subsystem. Clocking relies on internal IMO (24 MHz ±2%) and ILO (32.768 kHz), with glitch-free switching and automatic clock gating for power optimization.
Analog functionality is centered on the CTBm block hosting two rail-to-rail opamps (gain-bandwidth product 10 MHz, drive capability ±25 mA), configurable as buffers, comparators, or transimpedance amplifiers, plus a dedicated 12-bit SAR ADC with differential input, channel sequencer, and hardware signal averaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 24 MHz max, single-cycle multiply - enables deterministic real-time control and Thumb-2 binary compatibility with higher Cortex-M families. |
| Memory | 32 kB flash (with Read Accelerator), 4 kB SRAM - sufficient for firmware + CapSense® library + communication stack with zero wait-state execution at full speed. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended, channel sequencer - supports multi-sensor acquisition (e.g., temperature + voltage) without CPU intervention. |
| Analog Peripherals | 2 opamps (10 MHz GBW, ±25 mA drive), 2 low-power comparators (active in Deep Sleep), 2 IDACs - enables self-contained analog front-end for sensor conditioning and wake-on-event. |
| Digital Peripherals | 4 × 16-bit TCPWM, 2 × SCB (I²C/SPI/UART reconfigurable), 36 GPIO - allows motor control timing, serial comms flexibility, and full pin multiplexing for layout optimization. |
| Power Modes | Deep Sleep (20 nA), Hibernate (200 nA), Stop (20 nA with GPIO wakeup) - enables battery-powered operation for >10 years in intermittent-sensing applications. |
| Operating Range | 1.71 V to 5.5 V, –40 °C to +105 °C - supports direct connection to 3.3 V or 5 V rails and extended industrial environments. |
Pinout & Package
44-pin TQFP (10 mm × 10 mm, 0.8 mm pitch), RoHS-compliant, thermally enhanced for sustained 24 MHz operation in enclosed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local 100 nF + 10 µF decoupling. |
| VSS | Digital ground | Reference for digital logic and I/O; must be connected to analog ground via single-point star grounding. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up; compatible with open-drain microcontroller reset supervisors. |
| P0[0]–P0[7] | Programmable GPIO port 0 | Support CapSense®, LCD segment/common, analog input/output, or digital function; configurable slew rate and drive strength. |
| SWDIO/SWDCLK | Serial Wire Debug interface | Two-wire JTAG-compatible debug path; enabled by default; disable via firmware for security-critical deployments. |
| SCB0_SDA/SCB0_SCL | I²C interface pins | Open-drain, 5 V tolerant (with external pull-ups); support standard/fast-mode I²C up to 400 kHz for sensor hub interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense® CSD with SmartSense™ | Hardware-accelerated capacitive sensing with automatic tuning and >5:1 SNR - eliminates manual calibration and ensures robust touch detection under water or glove use. |
| Reconfigurable SCBs | Two independent serial communication blocks each configurable as I²C, SPI, or UART at runtime - reduces BOM count and enables field-upgradable comms protocols. |
| CTBm Analog Subsystem | Integrated opamp + comparator + IDAC per channel - enables closed-loop analog signal chains (e.g., current-source photodiode amplifier) without external components. |
| Low-Power Comparators | Operate in Deep Sleep mode with <1 µA quiescent current and programmable hysteresis - allows wake-on-threshold events (e.g., overvoltage detection) with no CPU overhead. |
| Flash Security Modes | Open / Protected / Kill - "Kill" mode permanently disables debug and external erase, meeting IEC 62443-3-3 SL2 requirements for secure firmware deployment. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled control interface for PLC-mounted operator panels in factory automation. IC Role / Device Role / Timing Role: Primary controller executing CapSense® firmware, driving segmented LCD, and communicating via RS-485 (via SCB+level shifter). Use Value: Single-chip integration eliminates discrete opamps, ADC, and touch controller; Deep Sleep extends panel battery life during idle periods. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ using analog and digital sensors. IC Role / Device Role / Timing Role: System-on-chip managing sensor excitation (IDAC), signal conditioning (opamp), conversion (SAR ADC), and LoRaWAN transmission (SCB+UART). Use Value: 20 nA Deep Sleep enables >5-year battery life; hardware sequencer automates multi-channel sampling without CPU wakeups. |
| Motor Control Interface | Medical Diagnostic Handset |
Use Scenario: Compact motor driver board requiring position feedback, fault monitoring, and CAN bus reporting (via external transceiver). IC Role / Device Role / Timing Role: Real-time PWM generator (TCPWM), analog fault detection (comparator + ADC), and UART-to-CAN bridge controller. Use Value: Comparator-triggered kill signal halts PWM within 100 ns upon overcurrent, preventing MOSFET failure. | Use Scenario: Portable diagnostic tool with ECG front-end, OLED display, and USB data export. IC Role / Device Role / Timing Role: Analog signal acquisition (opamp buffer + SAR ADC), display timing (LCD drive), and USB CDC communication (SCB configured as UART + external USB bridge). Use Value: On-chip opamp gain stability (±0.1% drift/°C) ensures clinical-grade signal fidelity; Hibernate mode preserves SRAM state during battery swaps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247LQI-BL483 | Higher flash (128 kB), Bluetooth LE radio, 48-QFN package - adds wireless connectivity but increases cost and RF design complexity. | Suitable for cloud-connected edge nodes; not drop-in due to different pinout and RF layout requirements. | Select when BLE mesh networking or OTA updates are mandatory; avoid if only local HMI or sensor aggregation is needed. |
| STM32G071CBT6 | ARM Cortex-M0+, 64 kB flash, no integrated CapSense® or programmable analog; requires external touch controller and opamp. | Better suited for cost-sensitive, non-capacitive applications with standard peripheral needs (USB, CAN, advanced timers). | Choose for pure MCU tasks with minimal analog content; CY8C4124PVQ-442 remains superior for integrated analog + touch designs. |
Compared with CY8C4247LQI-BL483 and STM32G071CBT6, CY8C4124PVQ-442 uniquely balances programmable analog, CapSense®, and low-power operation in a mature, pin-stable 44-TQFP package-ideal for industrial HMI where RF interference, component count, and long-term supply continuity are critical.
Availability
CY8C4124PVQ-442 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control interfaces, and medical diagnostic handsets requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4124PVQ-442 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global R&D and manufacturing infrastructure.
CY8C4124PVQ-442 belongs to the PSoC® 4100 family - designed specifically for cost-optimized, low-power embedded systems requiring integrated analog signal conditioning, capacitive touch, and flexible digital peripherals in industrial and consumer applications.
FAQ
What debug interfaces does CY8C4124PVQ-442 support?
CY8C4124PVQ-442 supports Serial Wire Debug (SWD) via dedicated SWDIO and SWDCLK pins. The interface provides full programming, breakpoint, watchpoint, and real-time trace capabilities. Debug is enabled by default and can be disabled in firmware; re-enabling requires full flash erase and reprogramming.
Can the opamps drive capacitive loads directly?
Yes - each opamp supports stable operation with up to 100 pF capacitive load when configured in unity-gain buffer mode, verified per datasheet Figure 19-14. For larger loads (e.g., LCD segments), external isolation resistors are recommended to prevent phase margin degradation.
Is the 12-bit SAR ADC usable in Deep Sleep mode?
No - the SAR ADC requires Active or Sleep mode. However, the two low-power comparators remain fully operational in Deep Sleep and can trigger wakeup to initiate ADC conversion upon threshold crossing, enabling event-driven sampling.
Does CY8C4124PVQ-442 support USB device functionality?
No - it lacks a native USB PHY or controller. USB connectivity requires an external USB-to-UART bridge (e.g., CP2102N) connected to one of its SCB-configured UART interfaces, with host-side CDC drivers handling enumeration and data transfer.
CY8C4124PVQ-442 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, 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 1x7b, 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4124PVQ-442 FAQ
1.How can I place an order for CY8C4124PVQ-442 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4124PVQ-442 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 CY8C4124PVQ-442 reliable?
The price and inventory of CY8C4124PVQ-442 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4124PVQ-442 is usually 5 days.
3.What payment methods are accepted for CY8C4124PVQ-442?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4124PVQ-442 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4124PVQ-442?
CY8C4124PVQ-442 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4124PVQ-442 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 CY8C4124PVQ-442?
For technical support, including CY8C4124PVQ-442 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4124PVQ-442 requirements.
6.How does Aetrix verify that CY8C4124PVQ-442 is sourced from the original manufacturer or authorized distributors?
All CY8C4124PVQ-442 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 CY8C4124PVQ-442 meets industry standards.
7.What is the process for return or replacement of CY8C4124PVQ-442?
All CY8C4124PVQ-442 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4124PVQ-442, 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 CY8C4124PVQ-442 part is unused and in its original packaging.
Return procedure for CY8C4124PVQ-442:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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