STMicroelectronics STM32F446ZEH7 — 180MHz ARM Cortex-M4 MCU, 512KB Flash, 144-UF
STMicroelectronics STM32F4 series, STM32F446ZEH7: ARM Cortex-M4 32-bit single-core at 180MHz, 512KB Flash, 132KB RAM, 114 I/O, USB OTG, 24x12b ADC / 2x12b DAC, 144-UFBGA (10x10) tray, -40°C to 105°C, 1.7V to 3.6V.
- 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 ~ 105°C (TA) |
| Speed | 180MHz |
| Package | Tray |
| RAM size | 132K 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) | 114 |
| Core processor | ARM® Cortex®-M4 |
| Case | 144-UFBGA |
| Data converters | A/D 24x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
Frequently asked questions
Is the STM32F446ZEH7 obsolete or end-of-life?
Yes — it carries an eol_hot lifecycle designation, placing it in the last-time-buy window. No official successor order code is cited. Confirm current allocation via RFQ before committing this part to a new production build.
Can I drop the STM32F446ZEH7 into a layout designed for an STM32F407VG?
No — the STM32F407VG uses a different package (LQFP-100), while the STM32F446ZEH7 is a 144-UFBGA. The pinout and footprint are not compatible; a layout revision is required. The peripheral set (USB OTG, dual 12b DAC) exceeds the F407VG's feature set, but the mechanical fit is different.
The panel runs at 70°C ambient — can I use the full 105°C rating at 100% I/O toggle?
The spec table rates the STM32F446ZEH7 to 105°C ambient, but 100% I/O toggle in a sealed enclosure drives junction temperature well above ambient. Until your thermal model confirms the junction stays within operating limits, treat 85°C as the safe ambient ceiling for fully toggled I/O. The spec is not wrong — the margin at full toggle in a warm enclosure needs your analysis to close.
Does the 180MHz core and 24-channel 12-bit ADC meet 1ms update rates for 16-channel analog input in a Profinet adapter?
The headline numbers (180MHz, 24x12b ADC) are capable in architecture, but cycle-time budget at 1ms update rates is determined by ADC conversion time, DMA chaining efficiency, and firmware interrupt latency — not the core clock alone. The spec table does not list the ADC conversion clock or single-channel conversion time. This is a firmware-architecture decision, not a datasheet guarantee.