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Product attributes Property Value
Manufacturer Cypress Semiconductor Corp
Product Series PSOC® 4 CY8C41xx - M
Packaging Bulk |
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 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 8K 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 (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C4126AZI-M445 is a 32-bit ARM Cortex-M0 microcontroller from Cypress, offering 64KB flash and 8KB RAM. It integrates CapSense touch sensing, an LCD driver, and multiple analog/digital peripherals. With a 1.71V to 5.5V supply range and 24MHz operation, it suits battery-powered and industrial applications. The 64-LQFP package provides ample I/O for complex designs.

  • Integrated CapSense: Eliminates external touch ICs, reducing BOM cost.
  • Wide voltage range (1.71V-5.5V): Supports single-cell batteries and 5V systems.
  • On-chip LCD driver: Simplifies display interface, saving PCB space.
  • Low-power modes: Extends battery life in portable devices.

Industrial Control Panels

CapSense touch buttons replace mechanical switches, improving reliability in dusty environments.

Smart Home Thermostats

LCD driver and low-power modes enable always-on temperature display with minimal energy draw.

Portable Medical Devices

1.71V operation allows direct battery powering, while PWM supports motor control for pumps.

Automotive Interior Lighting

Wide voltage range handles vehicle power fluctuations, and PWM enables dimming control.

Consumer Appliances

CapSense provides waterproof touch interfaces for kitchen equipment, with LVD for safe shutdown.

IoT Sensor Nodes

Low-power sleep modes and 64KB flash support edge processing of sensor data.

Q: What is the operating voltage range of the CY8C4126AZI-M445?
A: It operates from 1.71V to 5.5V, supporting flexible power designs.
Q: Does this MCU support capacitive touch sensing?
A: Yes, it includes CapSense technology for reliable touch interfaces.
Q: What package is available?
A: It comes in a 64-LQFP package, suitable for compact PCB layouts.
Q: What is the maximum CPU speed?
A: The ARM Cortex-M0 core runs at up to 24MHz.
Base Product Number : CY8C4126AZI
32-bit MCU 64-LQFP ARM Cortex-M0 CapSense industrial IoT LCD driver low power
Q: What is the operating voltage range of the CY8C4126AZI-M445?
A: It operates from 1.71V to 5.5V, supporting flexible power designs.
Q: Does this MCU support capacitive touch sensing?
A: Yes, it includes CapSense technology for reliable touch interfaces.
Q: What package is available?
A: It comes in a 64-LQFP package, suitable for compact PCB layouts.
Q: What is the maximum CPU speed?
A: The ARM Cortex-M0 core runs at up to 24MHz.