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Infineon Technologies CY8C4127LTI-M475
- Part No.:
- CY8C4127LTI-M475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C4127LTI-M475.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:520
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Product details
Overview
CY8C4127LTI-M475 from Infineon is a PSoC™ 4100M programmable system-on-chip integrating an Arm® Cortex®-M0 CPU (24 MHz), 128 kB flash, 16 kB SRAM, and reconfigurable analog/digital peripherals. It supports capacitive sensing (CSD), segment LCD drive, and four SCBs for I²C/SPI/UART - deployed in industrial HMI panels requiring low-power touch control and display management.
For engineers reviewing the CY8C4127LTI-M475 datasheet, CY8C4127LTI-M475 pinout, CY8C4127LTI-M475 application, or CY8C4127LTI-M475 equivalent, this device is selected for embedded systems demanding mixed-signal flexibility, deep-sleep operation (20 nA Stop Mode), hardware-accelerated CAPSENSE™, and field-reconfigurable TCPWM timing blocks.
Technical Context
The device implements a tightly coupled MCU subsystem with DMA engine and programmable interconnect fabric enabling dynamic routing between analog blocks (opamps, IDACs, comparators) and digital peripherals (TCPWM, SCB). Its SAR ADC achieves 806 kSPS with configurable input buffering and reference selection.
Capacitive sensing uses Infineon's proprietary CSD architecture with hardware SmartSense tuning, delivering >5:1 SNR and water-tolerant performance. LCD drive operates in Deep Sleep mode with 4-bit per-pin memory retention, supporting up to 44 segments across GPIO pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 at 24 MHz - single-cycle multiply enables real-time control loops without software overhead. |
| Flash Memory | 128 kB with Read Accelerator - reduces instruction fetch latency for deterministic interrupt response. |
| SRAM | 16 kB - sufficient for dual-bank firmware updates and real-time sensor data buffering. |
| SAR ADC | 12-bit, 806 kSPS - supports high-speed analog monitoring with programmable input scaling and averaging. |
| Opamps | 4 units, Deep Sleep–capable - enable always-on signal conditioning with sub-µA quiescent current. |
| Capacitive Sensing | CSD architecture with >5:1 SNR - delivers robust touch detection under moisture or EMI stress. |
| Low-Power Modes | 20 nA Stop Mode with GPIO wakeup - extends battery life in intermittently active sensor nodes. |
Pinout & Package
Package: 68-pin QFN (9 mm × 9 mm, 0.4 mm pitch), RoHS-compliant, thermally enhanced for industrial ambient operation (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers all digital logic, analog blocks, and GPIO drivers. |
| VSS | Digital ground | Reference return for digital circuits and internal voltage regulators. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally for noise immunity. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port for programming and real-time trace debugging. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, LCD segment/common, analog input/output, or digital I/O with configurable drive strength. |
| P1[0]–P1[7] | Programmable GPIO | Same flexibility as P0; dedicated routing to opamp inputs and IDAC outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware SmartSense tuning | Automatically calibrates CSD sensor parameters (IDAC, resolution, scan time) without host CPU intervention. |
| Deep Sleep–capable opamps | Operate at <1 µA quiescent current while maintaining analog signal path integrity for wake-on-event sensing. |
| Reconfigurable SCBs | Four independent serial blocks dynamically switch between I²C master/slave, SPI master/slave, or UART modes at runtime. |
| Segment LCD drive | Direct drive on all GPIO pins with 4-bit memory retention in Deep Sleep - eliminates external display controller. |
| TCPWM kill input | Hardware-triggered immediate PWM shutdown via comparator output - critical for motor fault safety compliance. |
Applications
| Industrial HMI Panel | Smart Thermostat |
|---|---|
Use Scenario: Touch-enabled control panel with segmented LCD display in factory automation equipment. IC Role / Device Role / Timing Role: Single-chip controller managing CAPSENSE™ buttons, LCD refresh, temperature monitoring, and relay actuation. Use Value: Eliminates separate touch controller and display driver ICs; Deep Sleep mode extends maintenance interval for battery-backed units. |
Use Scenario: Battery-powered residential climate controller with humidity sensing and local display. IC Role / Device Role / Timing Role: System-on-chip handling capacitive touch UI, SAR ADC-based temperature/humidity acquisition, and LCD segment drive. Use Value: 20-nA Stop Mode enables >5-year coin-cell operation; integrated opamps condition analog sensor signals without external components. |
| Medical Patient Monitor | Appliance Control Board |
Use Scenario: Portable vital sign monitor with touch interface and low-power display. IC Role / Device Role / Timing Role: Central controller executing CAPSENSE™ gesture recognition, analog front-end for biopotential signal conditioning, and LCD update timing. Use Value: CSD's >5:1 SNR ensures reliable touch detection despite electrode motion artifacts; SAR ADC supports 12-bit ECG channel digitization. |
Use Scenario: Washing machine main control board requiring motor PWM, water-level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time motor control via TCPWM blocks, capacitive water-level detection, and LED/LCD status display. Use Value: Hardware kill input on TCPWM blocks meets IEC 60730 Class B functional safety requirements for motor stall protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247LTI-M485 | Higher flash (256 kB) and SRAM (32 kB); same package and peripheral set. | Better suited for firmware-over-the-air (FOTA) updates and larger RTOS deployments. | Select when future feature expansion or dual-bank secure boot is required. |
| STM32L433RC | ARM Cortex-M4F core, no integrated CAPSENSE™ or programmable analog; requires external touch controller. | Lacks hardware-accelerated capacitive sensing and analog reconfiguration - increases BOM count and layout complexity. | Choose only if floating-point math or DSP extensions are mandatory and touch integration is handled externally. |
Compared with CY8C4127LTI-M475, the CY8C4247LTI-M485 offers headroom for complex firmware growth without changing PCB layout, while the STM32L433RC trades integrated analog flexibility for higher CPU performance - making it less optimal for cost-sensitive, space-constrained touch-display systems.
Availability
CY8C4127LTI-M475 is available at Aetrix Electronics and suitable for industrial HMIs, smart thermostats, medical patient monitors, and appliance control boards requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4127LTI-M475 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 German semiconductor manufacturer specializing in power management, automotive microcontrollers, and programmable mixed-signal solutions.
The PSoC™ 4100M family targets cost-sensitive, low-power embedded applications needing hardware-reconfigurable analog and digital resources - designed to replace discrete analog signal chains and reduce system-level design iteration.
FAQ
Does CY8C4127LTI-M475 support USB connectivity?
No. This device lacks a USB PHY or dedicated USB controller. Communication is limited to its four SCBs configured as I²C, SPI, or UART. For USB host/device functionality, designers must add an external USB-to-UART bridge IC or select a PSoC™ 4000S or PSoC™ 6 variant with native USB support.
Can the SAR ADC sample multiple channels simultaneously?
No. The 12-bit SAR ADC is single-channel with sequential sampling capability via hardware sequencer. It supports up to 16-channel scanning with automatic channel switching and result storage in SRAM, but true simultaneous sampling across channels is not supported.
What is the maximum operating frequency of the TCPWM blocks?
The TCPWM blocks run at the selected clock source frequency, with a maximum input clock of 48 MHz. When driven by the IMO (Internal Main Oscillator) at 48 MHz, each TCPWM can generate PWM signals up to 48 MHz - though practical resolution depends on counter bit width and prescaler settings.
Is the CSD block compatible with wet-finger operation?
Yes. The Capacitive Sigma-Delta (CSD) implementation includes hardware-based water rejection algorithms and adaptive baseline tracking. Infineon's documented water tolerance test results confirm reliable operation with up to 1 mm water film thickness over sensor electrodes.
CY8C4127LTI-M475 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C41xx - M
- Packaging:
- Bulk
- 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:
- 55
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b SAR; 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127LTI-M475 FAQ
1.How can I place an order for CY8C4127LTI-M475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LTI-M475 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 CY8C4127LTI-M475 reliable?
The price and inventory of CY8C4127LTI-M475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LTI-M475 is usually 5 days.
3.What payment methods are accepted for CY8C4127LTI-M475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LTI-M475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LTI-M475?
CY8C4127LTI-M475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LTI-M475 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 CY8C4127LTI-M475?
For technical support, including CY8C4127LTI-M475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LTI-M475 requirements.
6.How does Aetrix verify that CY8C4127LTI-M475 is sourced from the original manufacturer or authorized distributors?
All CY8C4127LTI-M475 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 CY8C4127LTI-M475 meets industry standards.
7.What is the process for return or replacement of CY8C4127LTI-M475?
All CY8C4127LTI-M475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LTI-M475, 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 CY8C4127LTI-M475 part is unused and in its original packaging.
Return procedure for CY8C4127LTI-M475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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