Infineon Technologies CY8C4127AZA-S455T

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C4000S
Packaging Tape & Reel (TR) | NULL
Core Processor ARM® Cortex®-M0+
Core Size 32-Bit
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 16, 20x10/12b SAR
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 CY8C4127AZA-S455T is a PSoC 4 MCU with an ARM Cortex-M0+ core running at 24MHz. It integrates 128KB flash, 16KB SRAM, CapSense touch sensing, and an LCD driver. Operating from 1.71V to 5.5V, it is packaged in a 64-LQFP, ideal for human-machine interface applications.

  • Integrated CapSense: No external touch ICs needed, reducing BOM cost.
  • ARM Cortex-M0+: Industry-standard core with broad tool support.
  • Large memory: 128KB flash for complex applications.
  • Wide voltage range: 1.71V-5.5V for flexible power design.
  • LCD driver: Direct segment display control saves external components.

Touch-Sensitive Control Panels

Integrated CapSense provides reliable capacitive touch buttons and sliders for consumer appliances.

Smart Home Displays

LCD driver and CapSense combine for interactive thermostats and security keypads.

Industrial HMI

24MHz Cortex-M0+ and 128KB flash handle graphical interfaces for factory equipment.

Wearable Devices

1.71V operation and low-power modes extend battery life in fitness bands.

Medical Devices

CapSense enables hygienic, non-contact controls for diagnostic equipment.

Automotive Interior

CapSense supports modern touch interfaces for infotainment and climate control.

Q: What core does this device use?
A: It uses an ARM Cortex-M0+ core at 24MHz.
Q: Does it support CapSense?
A: Yes, it includes CapSense touch sensing technology.
Q: What is the program memory size?
A: It has 128KB (128K x 8) of flash memory.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V.
Q: What package is available?
A: It comes in a 64-LQFP package.
Base Product Number : CY8C4127AZA
128KB flash 24MHz 32-bit MCU 64-LQFP ARM Cortex-M0+ CapSense HMI LCD PSoC 4 touch
Q: What core does this device use?
A: It uses an ARM Cortex-M0+ core at 24MHz.
Q: Does it support CapSense?
A: Yes, it includes CapSense touch sensing technology.
Q: What is the program memory size?
A: It has 128KB (128K x 8) of flash memory.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V.
Q: What package is available?
A: It comes in a 64-LQFP package.