Infineon Technologies CY8C4127AZS-S445T

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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 ~ 105°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 CY8C4127AZS-S445T is an ARM Cortex-M0+ MCU from Infineon, running at 24MHz with 128KB flash and 16KB RAM. It integrates CapSense, LCD driver, and multiple analog peripherals. Operating from 1.71V to 5.5V, it comes in a 64-LQFP package for industrial and consumer applications.

  • Integrated CapSense – eliminates external touch ICs, reducing BOM cost.
  • Wide voltage range (1.71V-5.5V) – flexible power supply design.
  • High-temperature rating (105°C) – reliable in industrial settings.
  • ARM Cortex-M0+ – efficient 32-bit processing at low power.

Touch-Sensitive Control Panels

CapSense hardware simplifies capacitive button and slider designs.

Industrial HMI

LCD controller and 105°C rating handle harsh factory environments.

Smart Home Devices

Low 1.71V operation enables energy-efficient IoT nodes.

Automotive Climate Control

Wide voltage range and PWM support fan and valve actuators.

Medical Monitors

24MHz ARM core processes sensor data with low latency.

Portable Instrumentation

64-LQFP package offers ample I/O for multi-channel measurement.

Q: What core does this use?
A: ARM Cortex-M0+ at 24MHz.
Q: Does it support capacitive sensing?
A: Yes, integrated CapSense for touch interfaces.
Q: What is the temperature range?
A: -40°C to 105°C, suitable for industrial.
Q: How much flash and RAM?
A: 128KB flash and 16KB RAM.
Base Product Number : CY8C4127AZS
128KB Flash 16KB RAM 24MHz 32-bit MCU ARM Cortex-M0+ CapSense Industrial IoT LCD LQFP-64
Q: What core does this use?
A: ARM Cortex-M0+ at 24MHz.
Q: Does it support capacitive sensing?
A: Yes, integrated CapSense for touch interfaces.
Q: What is the temperature range?
A: -40°C to 105°C, suitable for industrial.
Q: How much flash and RAM?
A: 128KB flash and 16KB RAM.