STMicroelectronics STM32F412CEU7TR

Overview

STM32F412CEU7TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 1 MB Flash, 256 KB SRAM, USB OTG FS, dual CAN 2.0B, and 100 MHz max CPU frequency. It integrates a 12-bit 2.4 MSPS ADC, DFSDM for sigma-delta audio, and supports LCD parallel interface (8080/6800) - deployed in sensor hubs, wearable devices, and industrial HMI systems.

For engineers reviewing the STM32F412CEU7TR datasheet, STM32F412CEU7TR pinout, STM32F412CEU7TR application, or STM32F412CEU7TR equivalent, key selection criteria include its 100 MHz ART-accelerated execution from Flash, dual CAN interfaces for robust fieldbus communication, low-power Stop mode down to 18 µA, and UFQFPN48 package compatibility with space-constrained PCB layouts.

Technical Context

The device implements an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 100 MHz, paired with a memory protection unit (MPU) for secure task isolation. Its dual CAN 2.0B controllers support time-triggered communication in industrial automation and motor control.

It features a dedicated Digital Filter for Sigma-Delta Modulators (DFSDM) with four PDM inputs and stereo microphone support, alongside a flexible static memory controller (FSMC) supporting NOR/PSRAM/SRAM with up to 16-bit data bus - enabling direct connection to external displays or legacy peripherals.

Key Specifications

Pinout & Package

STM32F412CEU7TR is housed in a 7 × 7 mm UFQFPN48 package with exposed thermal pad, optimized for thermal dissipation and compact layout in portable and industrial applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F411CEU6 and STM32F446RET6, the STM32F412CEU7TR uniquely balances high Flash/SRAM capacity, dual CAN, DFSDM audio support, and FSMC - making it optimal for integrated sensor+display+connectivity edge nodes where audio sensing and external memory expansion are essential.

Availability

STM32F412CEU7TR is available at Aetrix Electronics and suitable for industrial HMIs, wearable sensor hubs, motor control systems, and Wi-Fi gateway modules requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F412CEU7TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32F412x series targets resource-rich, low-power embedded applications requiring real-time audio processing, dual-fieldbus connectivity, and external memory expansion - bridging performance and energy efficiency in next-generation edge devices.

FAQ

What is the maximum operating temperature range for STM32F412CEU7TR?

The STM32F412CEU7TR is rated for industrial temperature range: –40 °C to +85 °C ambient. Electrical characteristics including current consumption, ADC accuracy, and timer jitter are guaranteed across this range per DS11139 Rev 9 Section 6.3.1. Thermal derating is not required below 105 °C junction temperature under standard PCB copper pour conditions.

Does STM32F412CEU7TR support external SDRAM via FSMC?

No. The FSMC supports only SRAM, PSRAM, and NOR flash memory - not SDRAM or DDR. SDRAM interfacing requires the more advanced Flexible Memory Controller (FMC) found in STM32F7/H7 series. For STM32F412CEU7TR, PSRAM (e.g., AP Memory APS6248L) is the highest-density external memory option compatible with FSMC.

Can PA11/PA12 be used for both USB and GPIO functions?

PA11 (USB_DM) and PA12 (USB_DP) are dedicated USB OTG FS physical layer pins with internal transceivers and pull-up resistors. They cannot be reconfigured as general-purpose GPIOs while maintaining USB functionality. However, in device-only mode with USB disabled, they may be used as standard inputs with no output capability - per RM0383 Section 9.2.2.

Is the 96-bit unique ID accessible via standard debug interface?

Yes. The 96-bit unique ID is readable via the DBGMCU_IDCODE register (address 0xE0042000) and also accessible through the HAL_GetUID() API in STM32Cube firmware. It is factory-programmed, non-erasable, and usable for secure boot key derivation or device licensing without requiring SWD/JTAG access beyond initial programming.