STM32F303RET7

Microcontrollers Overview

The STM32F303RET7 is a mixed-signal microcontroller from the STM32F303xE family, featuring an ARM Cortex-M4 core with FPU and DSP instructions operating at 72 MHz. It includes 512 Kbytes of Flash memory, 80 Kbytes of SRAM (including 16 Kbytes CCM), and a Flexible Static Memory Controller (FSMC). The device integrates four 12-bit ADCs (5 MSPS), two 12-bit DAC channels, seven ultra-fast comparators, and four operational amplifiers in PGA mode. Communication interfaces include USB 2.0 full-speed, CAN 2.0B Active, three I2C Fast mode plus, up to five USART/UARTs, and up to four SPIs. It operates on a 2.0 V to 3.6 V supply.

Microcontrollers Feature Summary

• Integrates high-performance analog peripherals including four fast 12-bit ADCs, two 12-bit DACs, seven ultra-fast comparators, and four programmable gain operational amplifiers for mixed-signal applications.
• Features a dedicated Core Coupled Memory (CCM) architecture that boosts time-critical routine execution performance compared to standard Flash execution.
• Supports advanced motor control with multiple timers capable of generating PWM signals with dead-time generation and emergency stop functions.
• Includes comprehensive connectivity options such as USB 2.0 full-speed with LPM support, CAN 2.0B Active, and multiple serial communication interfaces.

Microcontrollers Applications

• Audio class accuracy applications utilizing I2S peripherals clocked via external PLL
• Motor control systems requiring precise timing resolution and emergency stop capabilities
• Industrial devices requiring mixed-signal processing and robust communication interfaces
• Consumer electronics needing low-power operation with capacitive sensing touch keys

Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official part numbering scheme to ensure correct package type, temperature range, and mass storage programming status. Confirm compatibility with required voltage levels and peripheral counts for the target application design.

Microcontrollers Selection Notes

Select this component when high-performance digital processing is combined with extensive analog signal conditioning needs. The inclusion of FSMC allows for direct interfacing with external static memories, expanding system capacity beyond internal limits while maintaining high throughput.

Microcontrollers Part Context

This device belongs to the STM32F303xD/E family, which represents the mainstream mixed-signal MCU line from STMicroelectronics. It builds upon the Cortex-M4 architecture by adding specialized analog blocks, positioning it between standard digital MCUs and higher-end audio-specific variants within the broader STM32 portfolio.

Microcontrollers Replacement Considerations

STM32F303VET7

Microcontrollers FAQ

What is the maximum sampling rate of the integrated ADCs?

The four integrated 12-bit ADCs operate at a maximum sampling rate of 5 MSPS.

Does the device support external static memory expansion?

Yes, the Flexible Static Memory Controller (FSMC) supports connection to SRAM, PSRAM, NOR, and NAND flash memories.