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Infineon Technologies CY8C4126AZI-M445 — Microcontrollers & Processors (MCU / MPU / DSP)

CY8C4126AZI-M445 PSoC 4 ARM Cortex-M0 MCU, 24 MHz

MPNCY8C4126AZI-M445
Active

Infineon PSoC® 4 CY8C41xx-M series, CY8C4126AZI-M445, ARM® Cortex®-M0 32-bit MCU, 24 MHz, 64 KB Flash, 51 I/O, 16x12b SAR ADC, 2xIDAC, CapSense, LCD, 1.71 V supply, -40°C to 85°C, 64-TQFP.

$3.06Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY8C4126AZI-M445 specifications
ParameterValue
SeriesPSOC® 4 CY8C41xx - M
Oscillator typeInternal
Program memory typeFLASH
MountingSurface Mount
Operating temperature high-40°C to 85°C (TA)
Cpu_coreARM® Cortex®-M0
Frame_size32-Bit Single-Core
Fuse_speed24 MHz
ConnectivityI²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
Package_typeBulk
Number of i (O)51
StatusActive
Data convertersA/D 16x12b SAR; 2xIDAC
Peripheral_typesBrown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
Supply voltage1.71

Product details

PSoC 4 at 24 MHz — what the core and memory tell you

This is the part you pick when a design needs touch sensing or LCD segment drive without adding separate controller ICs.

CapSense and LCD drive — where the PSoC 4 earns its board space

The two IDACs let you generate analog waveforms or bias sensors without external DACs. The 16x12b SAR ADC is enough for reading multiple analog channels — think capacitive touch buttons, slider strips, or environmental sensors on a control panel.

Operating from 1.71 V up to the standard 3.6 V rail, this MCU can run directly off a Li-ion cell or a 1.8 V logic supply.

Infineon lists the CY8C4126AZI-M445 as Active. The PSoC 4 family has broad distribution support, so multi-year supply is realistic.

Frequently asked questions

How do I get current pricing and availability for CY8C4126AZI-M445?

Submit an RFQ for this order code to receive a current price and lead-time estimate — no commitment required to start the quote.

Will CY8C4126AZI-M445 drop into a panel that was specified around CY8C4245LQI-483 without rewiring?

No — the CY8C4245LQI-483 comes in a 48-QFN package, while the CY8C4126AZI-M445 is a 64-TQFP. The pin count and footprint differ, so a board designed for the 48-QFN would need a layout change to accommodate the 64-TQFP. The core architecture is similar (both ARM Cortex-M0), but the package and I/O count are not drop-in compatible.