STM32F446MCY6TR by STMicroelectronics — 180MHz ARM Cortex-M4 MCU, 256KB Flash, W
STMicroelectronics STM32F4 series, 32-bit ARM Cortex-M4 single-core MCU, 180MHz, 256KB Flash, 128KB RAM, 14×12b ADC, 2×12b DAC, 63 I/O, CANbus, USB OTG, 1.7–3.6V supply, -40°C to 85°C, 81-UFBGA WLCSP package, Tape & Reel.
- 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
| Parameter | Value |
|---|---|
| Series | STM32F4 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.7V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 180MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 128K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LVD, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB, USB OTG |
| Number of i (O) | 63 |
| Core processor | ARM® Cortex®-M4 |
| Case | 81-UFBGA, WLCSP |
| Data converters | A/D 14x12b; D/A 2x12b |
| Program memory size | 256KB (256K x 8) |
Frequently asked questions
Does the 256KB Flash fit a typical industrial EtherNet/IP or Modbus TCP stack?
A compiled EtherNet/IP or Modbus TCP stack for the STM32F4 typically consumes 180–220KB of Flash including LwIP or an RTOS, leaving 36–76KB of headroom for application code depending on the stack version and compiler optimization. The 256KB ceiling is workable for a focused gateway image but will not accommodate ports from 512KB or 1MB STM32F4 variants without footprint trimming.
What does 'eol_hot' mean for procurement planning on this part?
It means the part is in active end-of-life — a last-time-buy scenario where remaining distributor stock and manufacturer allocation are the only official sources. Any volume beyond confirmed distributor on-hand goes into spot-market channels carrying STM32F4 counterfeit risk. Buyers should RFQ now for traceability documentation, lot-level authenticity proof and confirmed quantity on any single reel before committing a panel build to this code.