| Parameters | |
|---|---|
| Series | STM32F3 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 64-LQFP |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 64-LQFP (10x10) |
| Speed | 72MHz |
| Oscillator Type | Internal |
| Core Processor | ARM® Cortex®-M4 |
| RAM Size | 12K x 8 |
| Number of I/O | 51 |
| Peripherals | DMA, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 2V ~ 3.6V |
| EEPROM Size | - |
| Program Memory Type | FLASH |
| Connectivity | CANbus, I²C, IrDA, LINbus, SPI, UART/USART |
| Core Size | 32-Bit Single-Core |
| Program Memory Size | 64KB (64K x 8) |
| Data Converters | A/D 21x12b; D/A 3x12b |
| Package | Tray |
| Product Status | Active |
| Base Product Number | STM32F334 |
| REACH Status | REACH Unaffected |
| Standard Package | 160 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
STM32F334R8T6 32-bit microcontroller STM32F3 MCU IC 72MHz 64KB FLASH
The STM32F334R8T6 is a high-performance 32-bit microcontroller (MCU) produced by STMicroelectronics, based on the ARM Cortex-M4 core with FPU and DSP capabilities, specifically designed for digital power control and precision analog applications. Packaged in a 64-pin LQFP, it operates at a maximum clock frequency of 72MHz, delivering efficient data processing with a supply voltage range of 2.0V to 3.6V and an operating temperature range of -40℃ to +85℃. It integrates 64KB of in-system programmable Flash, 16KB of SRAM, and rich high-performance peripherals, including ultra-fast comparators, operational amplifiers, 12-bit ADCs, DACs, advanced timers for PWM output, multiple communication interfaces (USART, SPI, I2C), as well as built-in protection features and low-power modes, making it ideal for applications requiring both analog signal processing and digital control.
This MCU is widely used in various scenarios, mainly including: digital power control (high-frequency switching power supplies, power factor correction, portable outdoor power supplies), motor control (industrial motor drives, small servo systems), automotive auxiliary systems (body control modules, infotainment peripherals), measurement and instrumentation (temperature sensors, precision measuring equipment), and IoT edge devices.
Alternative digital power MCUs
● STM32F334R8T7 (STMicroelectronics), pin-compatible with STM32F334R8T6, with an extended operating temperature range of -40℃ to +105℃
● GD32F334R8T6 (GigaDevice), a cost-effective pin-to-pin alternative with 72MHz Cortex-M4 core, 64KB Flash, 16KB SRAM, sharing the same software ecosystem for seamless replacement
● AT32F334R8T7 (Artery), featuring 96MHz higher clock frequency, 64KB Flash, 16KB SRAM, optimized for high-speed digital power control scenarios