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Product attributes Property Value
Manufacturer Cypress Semiconductor Corp
Product Series PSOC® 4 CY8C4100
Packaging Tape & Reel (TR) |
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 31
Program Memory Size 16KB (16K 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 ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 35-WLCSP (2.58x2.1)
Package / Case 35-XFBGA, WLCSP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C4124FNI-443T is a 32-bit ARM Cortex-M0+ MCU from Cypress (Infineon), featuring 16KB Flash and 4KB SRAM in a 35-XFBGA WLCSP package. It operates from 1.71V to 5.5V at 24MHz, with integrated CapSense, LCD drive, and PWM for human-machine interface applications.

  • Integrated CapSense eliminates external touch controllers, reducing BOM cost.
  • ARM Cortex-M0+ core offers 32-bit performance at low power.
  • 35-XFBGA WLCSP package is ideal for ultra-compact designs.
  • LCD drive support simplifies display integration.

Touch-Sensitive Interfaces

Integrated CapSense technology enables reliable capacitive buttons and sliders in home appliances without external touch ICs.

Smart Displays

LCD drive support and 24MHz ARM core handle segment LCD control in thermostats and industrial meters.

Battery-Powered Handhelds

1.71V minimum supply and low-power modes extend battery life in remote controls and medical pens.

Wearable Sensors

The tiny 35-XFBGA WLCSP package fits into smart rings and patches, with CapSense for touch input.

Automotive HMI

CapSense and robust reset features support steering wheel controls and center stack panels.

IoT Control Panels

Combines touch, display, and communication in a single MCU for smart home hubs.

Q: What core does the CY8C4124FNI-443T use?
A: It uses an ARM Cortex-M0+ core running at 24MHz.
Q: What is the Flash memory size?
A: It has 16KB of Flash memory.
Q: What special feature does it include?
A: It integrates CapSense touch sensing and LCD drive support.
Q: What is the operating voltage range?
A: It operates from 1.71V to 5.5V.
Base Product Number : CY8C4124
16KB Flash 24MHz 32-bit MCU 35-XFBGA 4KB RAM ARM Cortex-M0+ CapSense HMI LCD touch wearable
Q: What core does the CY8C4124FNI-443T use?
A: It uses an ARM Cortex-M0+ core running at 24MHz.
Q: What is the Flash memory size?
A: It has 16KB of Flash memory.
Q: What special feature does it include?
A: It integrates CapSense touch sensing and LCD drive support.
Q: What is the operating voltage range?
A: It operates from 1.71V to 5.5V.