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Product attributes Property Value
Manufacturer Cypress Semiconductor Corp
Product Series PSOC® 4 CY8C41xx - M
Packaging Tray |
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 51
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 AEC -
Mounting Type Surface Mount
Supplier Device Package 64-TQFP (14x14)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C4127AXI-M485 from Cypress Semiconductor is a versatile ARM Cortex-M0 microcontroller with 128KB flash and 16KB RAM. It operates at 24MHz with a supply voltage range of 1.71V to 5.5V. This MCU is distinguished by its integrated CapSense capacitive sensing technology and LCD drive capability, making it ideal for human-machine interfaces. The 64-LQFP package provides ample I/O for complex designs. It also includes a rich set of peripherals like PWM, WDT, and brown-out detection for robust embedded systems.

  • Integrated CapSense Technology: Eliminates the need for external touch controllers, reducing cost and simplifying PCB design.
  • Wide Voltage Range (1.71V-5.5V): Offers flexibility for various power supplies, from battery to regulated 5V.
  • Large 128KB Flash: Ample space for complex application code and data logging.
  • ARM Cortex-M0 Ecosystem: Benefit from a mature toolchain and extensive software libraries.

Touch-Sensitive Control Panels

The integrated CapSense blocks allow direct connection of capacitive electrodes, enabling sleek, waterproof UI for appliances and industrial equipment.

LCD-Based User Interfaces

With an LCD controller and 128KB flash, this MCU can drive character or segment LCDs while managing touch input, ideal for smart thermostats.

Battery-Powered IoT Sensors

The wide voltage range (1.71V-5.5V) and low-power modes make it suitable for wireless sensor nodes that run on coin cells or AA batteries.

Motor Control with Touch Interface

PWM outputs can control small DC motors, while CapSense provides a touch-based speed control, all in a single chip.

Industrial Process Monitors

The -40°C to 85°C range and robust peripherals (LVD, WDT) ensure reliable operation in factory floor monitoring systems.

Medical Device Handhelds

The ARM Cortex-M0 core with 16KB RAM can handle simple signal processing for portable health monitors, with CapSense for easy cleaning.

Q: What is the core processor in the CY8C4127AXI-M485?
A: It uses an ARM Cortex-M0 core running at up to 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it includes CapSense technology for touch buttons, sliders, and proximity sensing.
Q: What is the maximum flash memory size?
A: It has 128KB of flash memory (128K x 8 bits).
Q: What package is available?
A: It comes in a 64-LQFP package, suitable for complex designs with many I/Os.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, covering both low-power and standard logic levels.
Base Product Number : CY8C4127
128KB Flash 24MHz 32-bit MCU 64-LQFP ARM Cortex-M0 CapSense Cypress HMI LCD Touch
Q: What is the core processor in the CY8C4127AXI-M485?
A: It uses an ARM Cortex-M0 core running at up to 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it includes CapSense technology for touch buttons, sliders, and proximity sensing.
Q: What is the maximum flash memory size?
A: It has 128KB of flash memory (128K x 8 bits).
Q: What package is available?
A: It comes in a 64-LQFP package, suitable for complex designs with many I/Os.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, covering both low-power and standard logic levels.