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CY8C4045LQI-S411

IFXCY8C4045LQI-S411

Infineon Technologies
ARM® Cortex®-M0+ PSOC™ 4 CY8C4000S Microcontroller IC 32-Bit 48MHz 32KB (32K x 8) FLASH 24-QFN (4x4)
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Overview

The CY8C4045LQI-S411 is part of the PSoC 4000S series from Infineon, featuring an Arm Cortex-M0+ core running at 48MHz. This 32-bit microcontroller integrates programmable analog and digital blocks, including the CapSense fourth-generation capacitive-sensing solution for advanced human-machine interfaces.

Why Choose This Part

This MCU offers a versatile 1.71V to 5.5V operating range and integrates specialized hardware for capacitive sensing that outperforms software-based solutions. The inclusion of 32KB Flash and 4KB RAM in a compact 24-QFN package provides a high balance of processing power and footprint efficiency.

Applications

Capacitive Touch Interfaces
Ideal for implementing touch buttons, sliders, and proximity sensors in consumer electronics using integrated CapSense technology.
Home Appliance Control
Utilizes the 10-bit ADC and multiple PWM channels for managing simple motor control and user interfaces in white goods.
Battery-Powered Wearables
Optimized for low-power operation with a 2.5uA standby current, extending life in compact, portable devices.

Key Specifications

Speed 48MHz
RAM Size 4K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
Connectivity I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
Mounting Type Surface Mount
Number of I/O 19
Core Processor ARM Cortex-M0+
Package / Case 24-UFQFN Exposed Pad
Data Converters A/D 1x10b
Oscillator Type Internal
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 24-QFN (4x4)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 5.5V

Getting Started

Developers can begin by using the PSoC Creator IDE or ModusToolbox for firmware development and hardware configuration. Hardware evaluation is typically performed using the PSoC 4000S Prototyping Kit which supports easy access to all I/O and CapSense features.

Also Consider

PSoC 4000S Prototyping Kit IFXInfineon Technologies - Official development board for the PSoC 4000S series to quickly test CapSense and peripheral configurations.
ATSAMD21G18A-MFT MCHPMicrochip - Alternative Arm Cortex-M0+ MCU with larger memory and extensive peripheral support for general purpose applications.