STM32F446ZEJ7TR — STM32F4 ARM Cortex-M4 MCU, 180MHz, 512KB Flash, 114 I/O, 144-U
STMicroelectronics STM32F4 series, 32-bit ARM Cortex-M4 single-core at 180MHz, 512KB Flash, 128KB RAM, 24x12b A/D and 2x12b D/A converters, USB OTG and CANbus, 114 I/O, -40°C to 105°C operating temperature, 144-UFBGA surface-mount package on tape-and-reel.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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- MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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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 | Tape & Reel (TR) |
| 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) | 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
Does the 105°C ambient rating handle a control cabinet running at 85°C?
The spec rates -40°C to 105°C TA. Operating at 85°C leaves 20°C margin to the upper limit — well within the safe operating range. No derating is required on the 128KB RAM or the 24-channel ADC at that ambient. Thermal characterization of the actual PCB and package is always the correct step for any production qualification, but the datasheet limit is not a derating trigger at 85°C.
Can I drop this into an existing LQFP-144 footprint?
No. The STM32F446ZEJ7TR uses the 144-UFBGA package — ball-grid, not leaded. It is not footprint-compatible with any LQFP-144 variant of the same die. A board designed for LQFP-144 requires a re-layout to accept this part. The 114 I/O count is available but routed through BGA fan-out that changes signal routing significantly compared to the leaded package.