Infineon Technologies CY8C4124LQA-S433T

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C4100S Plus
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, LVD, POR, PWM, WDT
Number of I/O 34
Program Memory Size 16KB (16K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 5.5V
Data Converters A/D 16x10b, 12x12b SAR; D/A 2x7b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade Automotive
Qualification AEC AEC-Q100
Mounting Type Surface Mount
Supplier Device Package 40-QFN (6x6)
Package / Case 40-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C4124LQA-S433T from Infineon is a PSoC 4 microcontroller featuring an ARM Cortex-M0+ core at 24 MHz. It provides 16KB of flash and 4KB of SRAM, along with integrated CapSense touch sensing and an LCD driver. With a supply range of 1.71V to 5.5V and a 40-UFQFN package, this device is designed for human-machine interface applications requiring flexible analog and digital integration.

  • Integrated CapSense: Eliminates external touch controllers, reducing cost and simplifying PCB design for user interfaces.
  • Wide Supply Range: Operates from 1.71V to 5.5V, supporting both 3.3V and 5V systems without level shifters.
  • Built-in LCD Driver: Enables direct segmented display control, saving additional driver ICs.
  • Compact 40-UFQFN: Small footprint with exposed pad for thermal management in dense designs.
  • Low-Power Modes: Supports battery-operated applications with efficient sleep and wake-up cycles.

Touch-Sensitive Consumer Electronics

The integrated CapSense block allows designers to implement buttons, sliders, and proximity sensors on appliances, wearables, and remote controls without dedicated touch ICs.

Smart Home Control Panels

Combining LCD output, CapSense input, and 5.5V operation, it suits wall-mounted keypads and thermostat interfaces with backlit displays.

Industrial Human-Machine Interfaces (HMI)

The 24MHz Cortex-M0+ and PWM capabilities support simple HMI panels with LED dimming and touch feedback in machinery.

Battery-Powered IoT Sensors

With 1.71V minimum operation and low-power modes, it enables long-life wireless sensor nodes that wake periodically to transmit data.

Automotive Interior Controls

Operating from -40°C to 85°C, it handles dashboard touch buttons and ambient lighting control in vehicles.

Medical Handheld Instruments

The CapSense interface and LCD driver facilitate hygienic, easy-to-clean touch surfaces on glucose meters and drug delivery devices.

Q: What core does the CY8C4124LQA-S433T use?
A: It is based on the ARM Cortex-M0+ processor running at up to 24 MHz.
Q: What is the unique feature of this PSoC device?
A: It integrates CapSense capacitive sensing technology, enabling touch interfaces without external components.
Q: What is the supply voltage range?
A: It supports a wide range from 1.71V to 5.5V, making it versatile for both battery and 5V systems.
Q: Does it have an LCD controller?
A: Yes, it includes an LCD driver, suitable for segmented displays in consumer products.
Q: What package is available?
A: It comes in a 40-pin UFQFN package with exposed pad, ideal for compact PCB layouts.
Base Product Number : CY8C4124LQA
24MHz 40-UFQFN ARM Cortex-M0+ CapSense CY8C4124LQA-S433T Infineon LCD PSoC 4 touch sensing
Q: What core does the CY8C4124LQA-S433T use?
A: It is based on the ARM Cortex-M0+ processor running at up to 24 MHz.
Q: What is the unique feature of this PSoC device?
A: It integrates CapSense capacitive sensing technology, enabling touch interfaces without external components.
Q: What is the supply voltage range?
A: It supports a wide range from 1.71V to 5.5V, making it versatile for both battery and 5V systems.
Q: Does it have an LCD controller?
A: Yes, it includes an LCD driver, suitable for segmented displays in consumer products.
Q: What package is available?
A: It comes in a 40-pin UFQFN package with exposed pad, ideal for compact PCB layouts.