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Infineon Technologies CY8C4125AXI-473 — Microcontrollers & Processors (MCU / MPU / DSP)
Infineon Technologies

CY8C4125AXI-473 Infineon PSoC 4 MCU, 24 MHz, 44-TQFP

MPNCY8C4125AXI-473
End of Life

Infineon Technologies PSoC® 4 CY8C4100 series ARM® Cortex®-M0 MCU, 32 KB FLASH, 4 KB RAM, 24 MHz, 44-TQFP (10x10), -40 to 85 °C, 1.71-5.5 V.

$3.85Ref. price · indicative, final on quote
CY8C4125AXI-473 datasheet
Packaging44-LQFP
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CY8C4125AXI-473 Technical Specifications
ParameterValue
SeriesPSOC® 4 CY8C4100
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed24MHz
PackageTray
RAM size4K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, LVD, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
Number of i (O)36
Core processorARM® Cortex®-M0
Case44-LQFP
Data convertersA/D 8x12b SAR; D/A 2xIDAC
Program memory size32KB (32K x 8)

Product details

Active lifecycle — Cortex-M0 with 32 KB flash

The CY8C4125AXI-473 is an active-production ARM Cortex-M0 MCU in the PSoC 4 CY8C4100 series, running at 24 MHz with 32 KB flash and 4 KB RAM. Industrial temperature grade (-40 to 85 °C) covers outdoor enclosures, engine-bay-adjacent electronics, and cold-storage environments — the 44-TQFP package dissipates heat through the exposed pad to the PCB copper.

Memory budget and peripheral fit for control loops

32 KB of on-chip flash leaves room for a real-time control loop, a communication stack (I²C, SPI, UART, LIN), and a small RTOS kernel — 4 KB SRAM is tight for large buffers but sufficient for sensor data aggregation and state machines. The 8-channel 12-bit SAR ADC samples at rates suitable for motor-current sensing or multi-channel analog front-ends; the two IDAC outputs drive external sensor excitation or closed-loop biasing without an external DAC.

Frequently asked questions

What is the closest functional alternative to CY8C4125AXI-473?

The CY8C4245LQI-483 runs the same Cortex-M0 core at 48 MHz (double the speed) with the same 32 KB flash and 8x12b SAR ADC, but adds CapSense and LCD drive peripherals and comes in a 40-pin QFN package — the pinout and footprint differ, so a board layout change is required.