Infineon Technologies CY8C4127AZI-S453

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C4000S
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 38
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 48-TQFP (7x7)
Package / Case 48-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Infineon CY8C4127AZI-S453 is a PSoC 4 MCU with an ARM Cortex-M0+ core at 24MHz. It features 128KB flash and 16KB RAM, operating from 1.71V to 5.5V. The 48-LQFP package includes CapSense, LCD drive, PWM, and WDT, making it ideal for human-machine interface and sensing applications.

  • Integrated CapSense: Eliminates external touch ICs, saving board space and cost.
  • Wide voltage range (1.71V-5.5V): Supports both 1.8V and 5V systems.
  • On-chip LCD driver: Directly drives segment displays without additional hardware.
  • Low-power operation: Extends battery life in portable devices.

Touch-Sensitive Control Panels

The integrated CapSense block provides robust capacitive sensing without external components, ideal for user interfaces in appliances and industrial equipment.

LCD Display Systems

Built-in LCD driver support enables direct segment LCD control, reducing BOM cost for metering and display modules.

Battery-Powered Sensors

With a low 1.71V minimum supply and low-power modes, this MCU extends battery life in wireless sensor nodes.

Smart Lighting Controllers

PWM outputs and 24MHz processing handle LED dimming and color mixing with high resolution.

Portable Health Monitors

The small 48-LQFP package and CapSense buttons make it suitable for compact wearable devices.

Home Automation Hubs

Multiple communication interfaces and flexible GPIOs allow integration with various sensors and actuators.

Q: What is the maximum clock speed?
A: The CY8C4127AZI-S453 runs at 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it includes CapSense technology.
Q: What is the flash size?
A: It has 128KB flash and 16KB RAM.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V.
Q: What package is this?
A: It comes in a 48-LQFP package.
Base Product Number : CY8C4127AZI-S453
128KB Flash 16KB RAM 24MHz 32-bit ARM Cortex-M0+ CapSense HMI LCD Low Power LQFP-48 MCU PSoC 4
Q: What is the maximum clock speed?
A: The CY8C4127AZI-S453 runs at 24MHz.
Q: Does it support capacitive touch sensing?
A: Yes, it includes CapSense technology.
Q: What is the flash size?
A: It has 128KB flash and 16KB RAM.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V.
Q: What package is this?
A: It comes in a 48-LQFP package.