IFXCY8C4045LQI-S412
Infineon Technologies
ARM® Cortex®-M0+ PSOC™ 4 CY8C4000S Microcontroller IC 32-Bit 48MHz 32KB (32K x 8) FLASH 32-QFN (5x5)
Active4,275 in stock
Overview
The CY8C4045LQI-S412 is an Arm Cortex-M0+ based PSoC 4000S microcontroller operating at up to 48MHz. It integrates Infineon's fourth-generation CapSense technology, providing high-performance capacitive sensing for touch interfaces in a compact 32-QFN package.
Why Choose This Part
This PSoC 4 variant features programmable analog and digital blocks, including two low-power comparators and a 10-bit ADC. Its 4th Gen CapSense provides superior liquid tolerance and high signal-to-noise ratios compared to standard MCU touch peripherals.
Applications
Capacitive Touch Interfaces
Utilizes SmartSense auto-tuning for reliable touch buttons, sliders, and proximity sensors even in noisy environments.
Home Appliance UI
Integrated LCD drive capability and capacitive sensing make it ideal for front-panel control in white goods.
Battery-Powered Wearables
Optimized for low power with a 2.5uA standby current and small footprint for space-constrained designs.
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
27
Core Processor
ARM Cortex-M0+
Package / Case
32-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
32-QFN (5x5)
Voltage - Supply (Vcc/Vdd)
1.71V ~ 5.5V
Getting Started
Developers can use the PSoC Creator IDE or ModusToolbox for firmware development and hardware configuration. Evaluation is best performed using the CY8CKIT-041-40XX PSoC 4000S Pioneer Kit, which provides onboard sensors and a debugger.
Also Consider
CY8C4045LQI-S411
IFXInfineon Technologies
- Very similar PSoC 4000S device but in a slightly different QFN package configuration if pinout adjustments are needed.
ATSAMD21G18A-MUT
MCHPMicrochip Technology
- Alternative Arm Cortex-M0+ MCU with a higher I/O count and integrated USB, though without PSoC's specific programmable analog blocks.
MSP430FR2633IRHBT
TITexas Instruments
- A 16-bit ultra-low-power alternative featuring CapTIvate technology for dedicated touch sensing applications.
