Infineon Technologies CY8C4127AZI-S455

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C4100S Plus
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 54
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 Slope, 16x12b SAR; D/A 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 Infineon CY8C4127AZI-S455 is a PSoC 4 series microcontroller featuring an ARM Cortex-M0+ core at 24MHz. It integrates CapSense touch sensing, an LCD driver, and programmable analog blocks. With 128KB flash and 16KB SRAM, it operates from 1.71V to 5.5V in a 64-LQFP package. This device is designed for human-machine interface and low-power embedded applications.

  • Integrated CapSense: Eliminates external touch controllers, saving cost and space.
  • Wide Voltage Range: 1.71V to 5.5V supports battery and 5V systems.
  • Built-in LCD Driver: Simplifies display interface design.
  • Low Power: Suitable for battery-operated portable devices.

Touch-Sensitive Control Panels

Integrated CapSense eliminates the need for external touch ICs, reducing BOM cost and board space.

Battery-Powered Devices

Wide voltage range (1.71V-5.5V) allows direct operation from Li-ion or alkaline batteries without a regulator.

LCD Display Systems

Built-in LCD driver simplifies the design of small character or segment displays.

Home Appliances

Low-power modes and robust I/O make it suitable for white goods with user interfaces.

Industrial Sensors

24MHz Cortex-M0+ core with PWM and WDT provides reliable control for sensor signal conditioning.

Portable Medical Devices

Low power consumption and small footprint enable compact, battery-operated health monitors.

Q: What is the core processor in this device?
A: It uses an ARM Cortex-M0+ core running at 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it integrates CapSense technology for touch and proximity sensing.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, offering flexibility for various power supplies.
Q: What is the program memory size?
A: It has 128KB of flash memory and 16KB of SRAM.
Base Product Number : CY8C4127AZI-S455
128KB Flash 16KB RAM 24MHz 64-LQFP ARM Cortex-M0+ CapSense CY8C4127 HMI LCD Low Power PSoC 4 Touch Sensing
Q: What is the core processor in this device?
A: It uses an ARM Cortex-M0+ core running at 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it integrates CapSense technology for touch and proximity sensing.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, offering flexibility for various power supplies.
Q: What is the program memory size?
A: It has 128KB of flash memory and 16KB of SRAM.