My Inquiry
My Account
Infineon Technologies CY8C4125LQQ-483
- Part No.:
- CY8C4125LQQ-483
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4125LQQ-483.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,634
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4125LQQ-483 from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit Arm® Cortex™-M0 programmable system-on-chip (PSoC® 4100 family) featuring 24 MHz CPU, 32 kB flash, 4 kB SRAM, 12-bit 806 ksps SAR ADC, two opamps with comparator mode, and up to 36 programmable GPIOs. It integrates reconfigurable analog/digital blocks for mixed-signal embedded control in industrial HMI, sensor nodes, and motor drive interfaces.
For engineers reviewing the CY8C4125LQQ-483 datasheet, CY8C4125LQQ-483 pinout, CY8C4125LQQ-483 application, or CY8C4125LQQ-483 equivalent, key selection criteria include its 1.71–5.5 V operating range, Deep Sleep current of 20 nA, CapSense® sigma-delta support, dual SCB blocks for I²C/SPI/UART, and TCPWM-based PWM generation with comparator-triggered kill signals.
Technical Context
The device implements a single-layer AHB-Lite interconnect between Cortex-M0 CPU, SRAM, flash with read accelerator, and peripheral subsystems including CTBm (CapSense), SAR ADC, TCPWM, SCBs, and LP comparators. Clocking relies on IMO (24 MHz ±2%) and ILO (32.768 kHz) with glitch-free switching and automatic clock gating for power optimization.
Analog resources are managed via the CTBm block supporting opamp reconfiguration (buffer/comparator/PGA), IDAC-driven capacitive sensing, and SAR ADC with differential input, channel sequencer, and signal averaging - all accessible through PSoC Creator's hardware abstraction layer without custom RTL.
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 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 sleep. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution sensor data acquisition with noise suppression. |
| Opamps | Two rail-to-rail opamps with Comparator mode and ADC input buffering - enables analog front-end signal conditioning and threshold detection without external components. |
| Low-Power Modes | Stop Mode @ 20 nA, Deep Sleep @ 1.3 µA, Hibernate @ 150 nA - allows battery-powered operation for years in intermittent-sensing applications. |
| GPIO | Up to 36 pins with programmable drive modes, slew rates, and CapSense/LCD/analog/digital reassignment - eliminates board-level routing constraints and enables late-stage design iteration. |
| Communication | Two SCBs supporting runtime-reconfigurable I²C/SPI/UART - permits dynamic peripheral protocol switching without firmware rebuild or pin remapping. |
Pinout & Package
Package: 48-pin TQFP (LQQ suffix), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad. Pinout validated per Cypress datasheet 001-87220 Rev. *K, Figure 9 (Pin Assignments).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | 1.71–5.5 V single-supply operation; powers digital core, analog blocks, and I/O banks. |
| VSS | Ground reference | Digital and analog ground return; requires low-impedance connection to minimize noise coupling into SAR ADC and opamps. |
| P0[0]–P0[7] | Programmable GPIO bank | Supports CapSense, LCD segment/common, analog input/output, or digital logic with configurable drive strength and slew rate. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface enabling full chip programming, breakpoint debugging, and memory inspection without JTAG header. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally; overrides all power modes and initiates cold boot sequence. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense Sigma-Delta (CSD) | SNR >5:1 with water tolerance and SmartSense™ auto-tuning - eliminates manual calibration and improves reliability in wet or noisy environments. |
| Programmable Analog Blocks | Reconfigurable opamps, IDACs, and LP comparators usable on any GPIO - reduces BOM count and enables field tuning of sensor signal chains. |
| TCPWM Blocks | Four 16-bit timer/counter/PWM units with center-aligned, edge-aligned, and pseudo-random modes - supports precise motor phase control and LED dimming with dead-time insertion. |
| SCB Peripherals | Two independent serial communication blocks supporting I²C/SPI/UART simultaneously - allows concurrent sensor bus (I²C) and host interface (UART) without resource contention. |
| Security Options | Flash protection (Open/Protected/Kill), debug disable, and permanent interface lockdown - prevents unauthorized firmware extraction or malicious reprogramming in deployed devices. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled control panels in factory automation equipment requiring robust operation under EMI and moisture exposure. IC Role / Device Role / Timing Role: Central controller executing CapSense firmware, driving segmented LCD, managing UART/RS-485 communication, and generating PWM for status indicators. Use Value: Integrated CSD with water tolerance and hardware-accelerated signal averaging eliminate external touch controllers and reduce system latency by >30% vs discrete solutions. | Use Scenario: Battery-powered environmental monitors measuring temperature, humidity, and gas concentration with multi-year deployment life. IC Role / Device Role / Timing Role: Low-power system controller acquiring analog sensor data via SAR ADC, processing in Cortex-M0, and transmitting via I²C to LoRaWAN gateway. Use Value: 20 nA Stop Mode and programmable wake-up sources (LP comparators, CapSense) extend battery life beyond 7 years on CR2032 coin cell. |
| Motor Drive Interface Modules | Medical Diagnostic Handhelds |
Use Scenario: Compact BLDC motor driver boards needing overcurrent protection, commutation timing, and host command parsing. IC Role / Device Role / Timing Role: Real-time PWM generator with comparator-triggered kill signal, ADC for current sensing, and UART for configuration commands. Use Value: Hardware-synchronized kill signal propagation (<100 ns) ensures safe shutdown during fault conditions without CPU intervention. | Use Scenario: Portable pulse oximeters requiring analog front-end precision, optical signal synchronization, and USB HID interface. IC Role / Device Role / Timing Role: Mixed-signal controller performing synchronized LED drive (IDAC), photodiode signal acquisition (SAR ADC), and USB CDC communication. Use Value: On-chip opamp buffering and differential ADC sampling reduce external component count by 40% while maintaining <1% gain error across 0–50°C. |
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 |
|---|---|---|---|
| CY8C4025LQI-482 | Same PSoC 4100 architecture but with 16 kB flash, 2 kB SRAM, no CapSense CSD block - lacks sigma-delta engine and SmartSense. | Suitable for cost-sensitive control-only tasks without capacitive touch or high-SNR analog sensing. | Select when CapSense or >24 ksps ADC throughput is unnecessary and BOM cost reduction is critical. |
| STM32F072RBT6 | Arm Cortex-M0, 48 MHz, 128 kB flash, 16 kB SRAM, but fixed-function peripherals only - no reconfigurable analog/digital blocks or CapSense. | Requires external components for touch, opamp buffering, or flexible communication protocols. | Choose when higher clock speed and larger memory are needed, and design flexibility is less important than raw compute headroom. |
Compared with CY8C4125LQQ-483, CY8C4025LQI-482 trades CapSense and memory for lower unit cost, while STM32F072RBT6 offers more flash/SRAM but lacks hardware reconfigurability - making CY8C4125LQQ-483 optimal for designs requiring analog/digital co-design agility and ultra-low-power touch interfaces.
Availability
CY8C4125LQQ-483 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor drive interface modules, and medical diagnostic handhelds requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4125LQQ-483 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 acquired Cypress Semiconductor in 2020 and now owns and supports the full PSoC® portfolio, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets.
The PSoC 4100 family was designed specifically for cost-sensitive, ultra-low-power embedded systems requiring integrated analog front-ends, capacitive touch, and flexible digital logic - targeting rapid prototyping and field-reconfigurable end products.
FAQ
What development tools are required to program CY8C4125LQQ-483?
PSoC Creator IDE (free Windows-based tool) is mandatory for hardware configuration and component-based firmware generation. Programming uses standard SWD interface via MiniProg3 or KitProg debug probes. ARM GCC toolchain integration is supported, but schematic-driven design and automatic routing require PSoC Creator's native workflow.
Does CY8C4125LQQ-483 support USB connectivity?
No, CY8C4125LQQ-483 does not include a USB PHY or dedicated USB controller. It supports UART, I²C, and SPI via its two SCB blocks. For USB host/device functionality, external bridge ICs (e.g., CP2102N) or migration to PSoC 4000S/4100S+ families with USBFS are required.
Can the SAR ADC operate during Deep Sleep mode?
Yes, the SAR ADC can perform conversions in Deep Sleep mode using the internal ILO clock, with results stored in dedicated registers. Wake-up from Deep Sleep occurs only upon completion or timeout, enabling low-power periodic sensor sampling without CPU involvement.
Is the 48-pin TQFP package RoHS-compliant and lead-free?
Yes, CY8C4125LQQ-483 is manufactured in a RoHS-compliant, lead-free 48-pin TQFP package per Infineon's product change notification PCN-2021-001, with JEDEC-standard Pb-free solder profile compatibility and halogen-free molding compound.
CY8C4125LQQ-483 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100
- 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:
- 34
- 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 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4125LQQ-483 FAQ
1.How can I place an order for CY8C4125LQQ-483 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125LQQ-483 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 CY8C4125LQQ-483 reliable?
The price and inventory of CY8C4125LQQ-483 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125LQQ-483 is usually 5 days.
3.What payment methods are accepted for CY8C4125LQQ-483?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125LQQ-483 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125LQQ-483?
CY8C4125LQQ-483 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125LQQ-483 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 CY8C4125LQQ-483?
For technical support, including CY8C4125LQQ-483 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125LQQ-483 requirements.
6.How does Aetrix verify that CY8C4125LQQ-483 is sourced from the original manufacturer or authorized distributors?
All CY8C4125LQQ-483 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 CY8C4125LQQ-483 meets industry standards.
7.What is the process for return or replacement of CY8C4125LQQ-483?
All CY8C4125LQQ-483 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125LQQ-483, 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 CY8C4125LQQ-483 part is unused and in its original packaging.
Return procedure for CY8C4125LQQ-483:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4125LQQ-483 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
