Infineon Technologies CY8C4127AXI-S453

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C4100S
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, POR, PWM, WDT
Number of I/O 37
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 16x10b, 16x12b SAR; D/A 2x7b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 44-TQFP (10x10)
Package / Case 44-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C4127AXI-S453 from Infineon is a PSoC 4 MCU with an ARM Cortex-M0+ core. It delivers 128KB flash and 16KB RAM in a 44-pin LQFP. Operating from 1.71V to 5.5V, it integrates CapSense, LCD drive, and PWM for versatile embedded designs.

  • Integrated CapSense: Eliminates external touch ICs, reducing BOM cost and board space.
  • Wide voltage range (1.71V-5.5V): Simplifies power supply design and supports battery operation.
  • 128KB flash / 16KB RAM: Ample memory for complex applications and over-the-air updates.
  • 24MHz Cortex-M0+: Balanced performance for real-time control with low power consumption.

Industrial Control Panels

Use CapSense for reliable touch buttons and sliders, replacing mechanical parts. The 24MHz Cortex-M0+ core handles real-time control loops efficiently.

Smart Home Sensors

Combine LCD drive and PWM for display and dimming control. Wide voltage range (1.71V-5.5V) allows direct battery operation.

Portable Medical Devices

Low-power features and WDT ensure safe operation. 128KB flash supports complex firmware for data logging and user interfaces.

Automotive Interior Lighting

Operate from 5V supply with PWM for LED brightness control. The -40°C to 85°C range suits cabin environments.

Consumer Appliances

Integrate CapSense touch and LCD segments for user-friendly interfaces. The 44-LQFP package fits compact PCB layouts.

IoT Edge Nodes

Use the Cortex-M0+ for sensor fusion and communication protocols. 16KB RAM buffers data before wireless transmission.

Q: What is the operating voltage range of the CY8C4127AXI-S453?
A: It operates from 1.71V to 5.5V, supporting flexible power designs.
Q: What core processor does this MCU use?
A: It uses an ARM Cortex-M0+ core running at up to 24MHz.
Q: How much flash and RAM does it have?
A: It provides 128KB flash and 16KB RAM.
Q: Does it support capacitive sensing?
A: Yes, it includes CapSense technology for touch interfaces.
Q: What package is available?
A: It comes in a 44-pin LQFP package.
Base Product Number : CY8C4127AXI-S453
32-bit 44-LQFP ARM Cortex-M0+ CapSense consumer industrial IoT LCD PSoC 4 PWM
Q: What is the operating voltage range of the CY8C4127AXI-S453?
A: It operates from 1.71V to 5.5V, supporting flexible power designs.
Q: What core processor does this MCU use?
A: It uses an ARM Cortex-M0+ core running at up to 24MHz.
Q: How much flash and RAM does it have?
A: It provides 128KB flash and 16KB RAM.
Q: Does it support capacitive sensing?
A: Yes, it includes CapSense technology for touch interfaces.
Q: What package is available?
A: It comes in a 44-pin LQFP package.