My Inquiry
My Account
Infineon Technologies CY8C4745LQI-S411
- Part No.:
- CY8C4745LQI-S411
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY8C4745LQI-S411.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,962
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4745LQI-S411 from Infineon Technologies (formerly Cypress) is a programmable 32-bit Arm® Cortex®-M0+ microcontroller in the PSoC 4700S family, integrating MagSense™ inductive sensing and CapSense® capacitive sensing on a single die. It features 48 MHz CPU, 32 KB flash, 4 KB SRAM, five 16-bit TCPWM blocks, two SCBs supporting I²C/SPI/UART, and operates from 1.71–5.5 V. Used in metal proximity detection, touch interfaces, and low-power industrial HMI systems.
For engineers reviewing the CY8C4745LQI-S411 datasheet, CY8C4745LQI-S411 pinout, CY8C4745LQI-S411 application, or CY8C4745LQI-S411 equivalent, key selection criteria include integrated MagSense sensor count (up to 16), CapSense SNR (>5:1), Deep Sleep current (2.5 µA), TCPWM kill-signal triggering for motor control, and 48-pin TQFP package compatibility with PSoC Creator design flow.
Technical Context
The device implements a dual-sensing architecture: MagSense uses resonant LC tank excitation and phase-shift detection for sub-190 nm metal deflection resolution, while CapSense Sigma-Delta (CSD) delivers water-tolerant touch performance with SmartSense™ automatic hardware tuning. Both subsystems share programmable GPIO resources and are managed via dedicated firmware components in PSoC Creator.
Its clock system combines a 24–48 MHz IMO (±2% trimmed), 32 kHz WCO for precision timing, and 40 kHz ILO for Deep Sleep operation - all routed through eight clock dividers (two fractional) to synchronize CPU, analog peripherals, and TCPWM blocks without glitching. The NVIC supports eight interrupt inputs with Wakeup Interrupt Controller (WIC) enabling sub-35 µs wake-from-Deep Sleep latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables real-time deterministic execution of mixed-signal sensing algorithms |
| Flash / SRAM | 32 KB flash with Read Accelerator / 4 KB zero-wait-state SRAM - supports firmware with CapSense/MagSense libraries and user application code |
| Inductive Sensing | Up to 16 MagSense channels - detects metal objects with <190 nm deflection resolution and built-in calibration compensation |
| Capacitive Sensing | CapSense CSD with >5:1 SNR and water tolerance - enables robust touch buttons/sliders in humid environments |
| Power Modes | Deep Sleep at 2.5 µA digital current - sustains comparator and analog block operation while disabling CPU/flash/SRAM |
| Communication | Two reconfigurable SCBs - each independently switchable between I²C, SPI, or UART at runtime without firmware reload |
| TCPWM Blocks | Five 16-bit timer/counter/PWM units with center-aligned, edge, and pseudo-random modes - supports motor control and LED dimming with comparator-triggered kill signals |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O banks |
| VSS | Ground reference | Digital and analog ground common point; requires low-impedance PCB connection |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; asserts full chip reset on falling edge |
| SWDIO / SWCLK | Debug interface pins | Supports Serial Wire Debug (SWD) programming and real-time firmware debugging |
| P0[0]–P0[7] | Programmable GPIO bank 0 | Each pin configurable as MagSense coil driver, CapSense electrode, analog input, or digital I/O |
| SCB0_SDA / SCB0_SCL | I²C interface signals | Default I²C pins for SCB0; remappable to other GPIOs via hardware routing matrix |
| SCB1_MOSI / SCB1_MISO / SCB1_SCLK | SPI interface signals | Default SPI pins for SCB1; fully reconfigurable to UART or I²C via register settings |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MagSense + CapSense | Single-chip metal + non-metal object detection eliminates need for separate sensing ICs and reduces BOM count |
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration adjusts baseline and thresholds dynamically during operation without CPU overhead |
| Deep Sleep with Analog Active | 2.5 µA system current while comparators and MagSense oscillators remain operational - extends battery life in portable sensors |
| Reconfigurable SCBs | Two independent serial blocks each support I²C, SPI, or UART protocol selection at runtime - simplifies interface consolidation on constrained PCBs |
| Programmable TCPWM Kill Signal | Comparator output can directly trigger TCPWM shutdown within one clock cycle - critical for safe motor drive fault response |
Applications
| Industrial Proximity Switch | Appliance Touch Control Panel |
|---|---|
Use Scenario: Detecting metal presence in automated assembly lines without physical contact or wear. IC Role / Device Role / Timing Role: MagSense channel drives LC tank and measures phase shift; Cortex-M0+ executes threshold-based decision logic. Use Value: Sub-190 nm deflection resolution enables detection of minute metal displacements in vibration-sensitive machinery monitoring. | Use Scenario: Water-resistant touch interface on washing machine or dishwasher control panel. IC Role / Device Role / Timing Role: CapSense CSD block acquires raw sensor data; SmartSense™ performs real-time baseline correction and noise filtering. Use Value: >5:1 SNR and inherent water tolerance allow reliable button actuation even with condensation or splashes. |
| Motor Drive Fault Monitor | Low-Power IoT Sensor Node |
Use Scenario: Real-time overcurrent or short-circuit detection in BLDC motor gate drivers. IC Role / Device Role / Timing Role: Analog comparator monitors shunt voltage; output triggers TCPWM kill signal to disable PWM outputs within one clock cycle. Use Value: Hardware-level kill path bypasses software latency, ensuring <100 ns fault response for functional safety compliance. | Use Scenario: Battery-powered environmental monitor sampling temperature and humidity every 5 minutes. IC Role / Device Role / Timing Role: Cortex-M0+ executes sensor readout and BLE packet prep; remains in Deep Sleep (2.5 µA) between intervals. Use Value: Ultra-low Deep Sleep current extends CR2032 battery life beyond 2 years with periodic sensing duty cycle. |
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 |
|---|---|---|---|
| CY8C4745LQI-S412 | Same die, identical specs, but shipped in tape-and-reel (vs. tray); no electrical or functional difference | Identical use cases; selected only for automated SMT line compatibility | Choose S412 for high-volume pick-and-place assembly; S411 preferred for prototyping and low-volume builds |
| CY8C4745AZI-S422 | Same PSoC 4700S core but in 48-pin QFN (7×7 mm) instead of TQFP; thermal resistance differs (θJA = 42°C/W vs. 52°C/W) | Better thermal performance in space-constrained enclosures; requires different PCB footprint and reflow profile | Select QFN variant only when board area is critical and thermal management allows tighter layout |
Compared with CY8C4745LQI-S411, the S412 offers identical functionality in tape-and-reel packaging for production lines, while the S422 provides identical silicon in QFN for improved thermal dissipation - neither changes sensing capability, memory size, or peripheral configuration.
Availability
CY8C4745LQI-S411 is available at Aetrix Electronics and suitable for industrial HMI, appliance touch interfaces, and metal proximity sensing applications requiring stable component supply, long-term lifecycle support, and consistent PSoC Creator toolchain integration.
Supply support for CY8C4745LQI-S411 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, including technical documentation, manufacturing, and long-term product availability.
The PSoC 4700S product line was designed specifically to unify inductive and capacitive sensing in a single low-power MCU for industrial and consumer HMI applications - eliminating external sensing ICs and reducing system complexity.
FAQ
Does CY8C4745LQI-S411 require an external crystal for basic operation?
No. The device includes an internal main oscillator (IMO) trimmed to ±2% accuracy at 24–48 MHz, sufficient for most CapSense and MagSense applications. A 32 kHz watch crystal (WCO) is optional and only needed for high-precision real-time clock or watchdog timing - not required for core MCU or sensing functionality.
Can all 36 GPIOs be used simultaneously for MagSense sensing?
No. While up to 36 GPIOs are available, MagSense functionality is limited to 16 pins - specifically those mapped to designated analog-capable ports (P0[0]–P0[7], P1[0]–P1[7]) with integrated coil driver circuitry. Other GPIOs support CapSense, digital I/O, or analog functions but lack MagSense excitation capability.
Is PSoC Creator still supported for CY8C4745LQI-S411 development?
Yes. Infineon continues to host and support PSoC Creator v4.4 as the official IDE for PSoC 4700S devices. All CapSense and MagSense components, TCPWM configurators, and SCB wizards remain fully functional and documented in the latest PSoC 4700S TRM (Document No. 002-20489 Rev. *E).
What is the maximum operating temperature for continuous MagSense operation?
The device is rated for industrial temperature range (–40 °C to +85 °C). MagSense performance remains stable across this range, with factory calibration compensating for temperature-induced LC tank drift. No derating is required for MagSense sensing up to +85 °C ambient, as confirmed in the Electrical Specifications section (page 14) of the datasheet.
CY8C4745LQI-S411 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4700S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- 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:
- 19
- 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 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4745LQI-S411 FAQ
1.How can I place an order for CY8C4745LQI-S411 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4745LQI-S411 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 CY8C4745LQI-S411 reliable?
The price and inventory of CY8C4745LQI-S411 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4745LQI-S411 is usually 5 days.
3.What payment methods are accepted for CY8C4745LQI-S411?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4745LQI-S411 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4745LQI-S411?
CY8C4745LQI-S411 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4745LQI-S411 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 CY8C4745LQI-S411?
For technical support, including CY8C4745LQI-S411 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4745LQI-S411 requirements.
6.How does Aetrix verify that CY8C4745LQI-S411 is sourced from the original manufacturer or authorized distributors?
All CY8C4745LQI-S411 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 CY8C4745LQI-S411 meets industry standards.
7.What is the process for return or replacement of CY8C4745LQI-S411?
All CY8C4745LQI-S411 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4745LQI-S411, 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 CY8C4745LQI-S411 part is unused and in its original packaging.
Return procedure for CY8C4745LQI-S411:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4745LQI-S411 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…
