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Infineon Technologies CY8C4014LQI-422T — Microcontrollers & Processors (MCU / MPU / DSP)

CY8C4014LQI-422T PSoC 4 MCU, ARM Cortex-M0, 16 MHz

MPNCY8C4014LQI-422T
End of Life

Cypress PSoC® 4 CY8C4000 series, CY8C4014LQI-422T, ARM Cortex-M0 32-bit MCU, 16 MHz, 16 KB Flash, 2 KB RAM, I²C, 20 I/O, 1.71V–5.5V, -40°C to 85°C, 24-UFQFN Exposed Pad.

$2.8Ref. price · indicative, final on quote
Packaging24-UFQFN Exposed Pad
RoHSRoHS non-compliant
SeriesPSOC® 4 CY8C4000
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY8C4014LQI-422T specifications
ParameterValue
SeriesPSOC® 4 CY8C4000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed16MHz
PackageTape & Reel (TR)
RAM size2K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C
Number of i (O)20
Core processorARM® Cortex®-M0
Case24-UFQFN Exposed Pad
Data convertersD/A 1x7b, 1x8b
Program memory size16KB (16K x 8)

Product details

16 MHz Cortex-M0 with 16 KB Flash — entry-level PSoC 4 for I²C-centric control

The part integrates a brown-out detect, POR, PWM, and WDT peripherals, plus a 1x7-bit and 1x8-bit DAC, and communicates via I²C. It comes in a 24-QFN package with exposed pad, offering 20 GPIOs.

I²C-only serial interface — design-in constraint vs. richer siblings

Unlike the CY8C4245LQI-483 which adds SPI, UART/USART, IrDA, LINbus, and SmartCard interfaces, the CY8C4014LQI-422T is limited to I²C for serial communication.

However, the part is listed as RoHS non-compliant, which may restrict its use in markets with strict RoHS enforcement or require an exemption declaration.

Frequently asked questions

What is CY8C4014LQI-422T's listed speed?

The CY8C4014LQI-422T is rated for a 16 MHz core speed, which is appropriate for low-power sensor polling, I²C bridge tasks, and simple control loops rather than high-throughput signal processing.