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Infineon Technologies CY8C4125PVQ-482
- Part No.:
- CY8C4125PVQ-482
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4125PVQ-482.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,962
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Product details
Overview
CY8C4125PVQ-482 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 806 ksps SAR ADC, two opamps with comparator mode, and two current DACs. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode with 20-nA current, and delivers 24 MHz CPU performance with single-cycle multiply. Used in capacitive touch HMI, sensor interface, and low-power industrial control systems.
For engineers reviewing the CY8C4125PVQ-482 datasheet, CY8C4125PVQ-482 pinout, CY8C4125PVQ-482 application, or CY8C4125PVQ-482 equivalent, key selection criteria include its integrated CapSense Sigma-Delta (CSD) engine with >5:1 SNR, programmable analog routing, 36 GPIOs with configurable drive modes, and SWD debug interface supporting full on-chip debugging without external pods.
Technical Context
The device implements a single-layer AHB-Lite interconnect between Cortex-M0 CPU, SRAM, flash, and peripherals. Its analog subsystem includes two CTBm (Capacitive Touch Block) opamps supporting ADC input buffering, comparator latching, and high-drive external output - all reconfigurable via firmware at runtime.
Digital resources include four 16-bit TCPWM blocks supporting center-aligned PWM and comparator-triggered kill signals for motor control, plus two SCBs that dynamically switch between I²C, SPI, or UART protocols. Clocking relies on IMO (internal main oscillator) and ILO (internal low-power oscillator), with glitch-free switching and automatic calibration.
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 firmware updates and state retention during ultra-low-power operation. |
| ADC | 12-bit SAR ADC, 806 ksps, differential/single-ended, with channel sequencer and signal averaging - enables high-resolution sensor acquisition with noise suppression. |
| Analog Blocks | Two opamps with Comparator mode + ADC input buffering; two low-power comparators active in Deep Sleep - allows autonomous analog monitoring without CPU wake-up. |
| CapSense | Cypress CapSense Sigma-Delta (CSD) engine with SmartSense™ auto-tuning and >5:1 SNR - delivers robust water-tolerant touch sensing on any GPIO without external components. |
| Power Modes | Stop Mode @ 20 nA, Deep Sleep @ 1.3 µA, Hibernate @ 150 nA - enables battery-powered devices with multi-year operation on coin cells. |
| GPIO | 36 programmable pins supporting CapSense, LCD segment/common, analog input/output, and digital logic - eliminates external level shifters and reduces 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 | Main power supply | 1.71–5.5 V input powering core, analog, and I/O domains; requires local 100 nF decoupling. |
| VSS | GND reference | Dedicated ground return for analog and digital sections; must be connected to common system ground plane. |
| P0[0]–P0[7] | Port 0 GPIO | Configurable as CapSense, analog input, LCD segment, or digital I/O; supports slew rate and drive strength programming. |
| P1[0]–P1[7] | Port 1 GPIO | Same functionality as P0; includes dedicated SWDIO/SWCLK pins (P1[0]/P1[1]) for debug and programming. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external resistor. |
| XTAL_IN/XTAL_OUT | External crystal interface | Supports optional 1–33 MHz crystal for precise clock source; not required for operation (IMO provides factory-trimmed 48 MHz). |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Routing | Hardware-mapped interconnect between opamps, ADC, IDACs, and GPIOs - enables custom analog signal chains without PCB redesign. |
| SmartSense™ Auto-Tuning | Firmware-controlled CSD parameter optimization per sensor - eliminates manual calibration and maintains touch accuracy across temperature/humidity drift. |
| SWD Debug Interface | 2-pin Serial Wire Debug with 4 breakpoint and 2 watchpoint comparators - enables full on-chip debugging using standard Arm tools without JTAG pod. |
| Flash Security Modes | Open/Protected/Kill protection levels - Kill mode permanently disables debug and external flash access, preventing reverse engineering or unauthorized firmware extraction. |
| Deep Sleep Wakeup Sources | GPIO, comparators, RTC, WDT, and USB (if enabled) - allows selective peripheral activation while CPU remains powered down. |
Applications
| Industrial HMI Panels | Portable Medical Sensors |
|---|---|
Use Scenario: Touch-enabled control panels in factory HMIs operating in harsh EMI environments with wide temperature swings. IC Role / Device Role / Timing Role: Primary system controller handling CapSense button detection, LED/PWM backlight control, and RS-485 communication via SCB. Use Value: Integrated CSD engine with >5:1 SNR and water tolerance eliminates external touch controllers; Deep Sleep mode extends panel battery life beyond 3 years. | Use Scenario: Battery-powered wearable pulse oximeters requiring analog front-end signal conditioning and low-noise ADC sampling. IC Role / Device Role / Timing Role: Signal acquisition hub interfacing photodiode transimpedance amps, driving 12-bit SAR ADC, and processing data before BLE transmission. Use Value: Two opamps with ADC input buffering enable direct connection to sensor outputs; 20-nA Stop Mode preserves charge between measurement cycles. |
| Smart Home Thermostats | Motor Control Reference Designs |
Use Scenario: Wi-Fi-connected thermostats with capacitive touch sliders, ambient temperature/humidity sensing, and HVAC relay control. IC Role / Device Role / Timing Role: Central MCU managing CapSense UI, I²C sensor reads, PWM fan speed control, and system power sequencing. Use Value: 36 GPIOs support simultaneous CapSense, LCD, and relay drivers; programmable drive strength prevents ESD-induced false touches. | Use Scenario: Brushless DC motor evaluation boards requiring precise PWM timing, overcurrent protection, and fault reporting. IC Role / Device Role / Timing Role: Timing and safety supervisor generating center-aligned PWM, capturing hall sensor edges, and asserting hardware kill signals on comparator threshold breach. Use Value: TCPWM blocks support dead-time insertion and synchronous update; comparator-triggered kill signals respond in <100 ns - faster than software-based protection. |
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 |
|---|---|---|---|
| CY8C4126AZI-S433 | Same PSoC 4100 architecture but in 48-pin QFN package; lacks TQFP thermal pad and has different pin mapping. | Preferred for space-constrained PCBs where thermal dissipation is managed via copper area, not heatsink mounting. | Select when board layout requires QFN footprint and thermal vias are feasible; verify GPIO remapping for existing firmware. |
| STM32L072KBU6 | Arm Cortex-M0+ core @ 32 MHz; no integrated CapSense or programmable analog; relies on external components for touch and signal conditioning. | Suitable for cost-sensitive designs where touch is implemented via resistive overlay or external IC, and analog functions are minimal. | Choose only if CapSense and reconfigurable analog are unnecessary; expect higher BOM count and reduced design flexibility. |
Compared with CY8C4125PVQ-482, CY8C4126AZI-S433 offers identical functionality in a smaller footprint but requires thermal redesign, while STM32L072KBU6 sacrifices integrated analog/touch capability for lower unit cost and broader toolchain support - making it viable only when those features are omitted from the system architecture.
Availability
CY8C4125PVQ-482 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart home thermostats requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature ranges.
Supply support for CY8C4125PVQ-482 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 MCUs, and secure embedded solutions.
CY8C4125PVQ-482 belongs to the PSoC® 4100 product line, designed specifically for cost-sensitive, low-power embedded systems requiring integrated analog signal conditioning, capacitive touch, and field-reconfigurable logic without external components.
FAQ
What debug interfaces does CY8C4125PVQ-482 support?
CY8C4125PVQ-482 supports only the 2-pin Serial Wire Debug (SWD) interface - SWDIO and SWCLK on P1[0] and P1[1]. It does not support JTAG. The SWD interface provides full programming, flash erase, breakpoint, and watchpoint debugging capabilities using standard Arm-compatible tools like Keil MDK or GCC + OpenOCD. Debug features can be disabled in firmware to enforce security.
Can CY8C4125PVQ-482 drive an LCD directly?
Yes - CY8C4125PVQ-482 supports static and multiplexed LCD driving on all GPIO pins, with up to 4 bits per pin memory retained in Deep Sleep mode. It supports common/segment configurations and requires no external bias circuitry. The LCD driver operates independently of the CPU, allowing display updates during low-power states without waking the core.
Does this device support USB connectivity?
No - CY8C4125PVQ-482 does not include a USB physical layer or USB controller. It lacks USB transceivers, USB PHY, and associated firmware stack support. For USB host/device functionality, external USB-to-UART bridges (e.g., CP2102) or migration to PSoC 4200L/4500 series devices with integrated USBFS are required.
How is flash protection implemented on CY8C4125PVQ-482?
Flash protection uses three hardware-enforced modes: Open (default, debug enabled), Protected (debug disabled, flash erasable only after full chip erase), and Kill (debug and external flash access permanently disabled). Kill mode is irreversible and prevents all external read/write/erase operations - including failure analysis - making it suitable for high-security firmware deployments.
CY8C4125PVQ-482 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:
- 32KB (32K 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:
CY8C4125PVQ-482 FAQ
1.How can I place an order for CY8C4125PVQ-482 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125PVQ-482 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 CY8C4125PVQ-482 reliable?
The price and inventory of CY8C4125PVQ-482 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125PVQ-482 is usually 5 days.
3.What payment methods are accepted for CY8C4125PVQ-482?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125PVQ-482 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125PVQ-482?
CY8C4125PVQ-482 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125PVQ-482 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 CY8C4125PVQ-482?
For technical support, including CY8C4125PVQ-482 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125PVQ-482 requirements.
6.How does Aetrix verify that CY8C4125PVQ-482 is sourced from the original manufacturer or authorized distributors?
All CY8C4125PVQ-482 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 CY8C4125PVQ-482 meets industry standards.
7.What is the process for return or replacement of CY8C4125PVQ-482?
All CY8C4125PVQ-482 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125PVQ-482, 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 CY8C4125PVQ-482 part is unused and in its original packaging.
Return procedure for CY8C4125PVQ-482:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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