Skip to main content
Log in
STMicroelectronics STM32F071CBU6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F071CBU6 ARM Cortex-M0 MCU, 48 MHz, 128 KB Flash

MPNSTM32F071CBU6
Active

STMicroelectronics STM32F0 series, ARM Cortex-M0 32-bit MCU, 48 MHz, 128 KB Flash, 16K x 8 RAM, 37 I/O, 1.65 V to 3.6 V supply, -40°C to 85°C, 48-UFQFN exposed pad package.

$4.6400Ref. price · indicative, final on quote
STMicroelectronics STM32F071CBU6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F071CBU6 specifications
ParameterValue
SeriesSTM32F0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed48MHz
PackageTray
RAM size16K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityHDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)37
Core processorARM® Cortex®-M0
Case48-UFQFN Exposed Pad
Data convertersA/D 13x12b; D/A 2x12b
Program memory size128KB (128K x 8)

Product details

What the 48 MHz Cortex-M0 buys you in a control loop

Package and thermal: the 48-UFQFN exposed pad

This part comes in a 48-UFQFN package with an exposed pad (7x7 mm footprint). The thermal pad is the primary heat path — if you plan to draw continuous current through the I/O pins or run the core at full speed near the 85°C upper limit, stitch that pad to a ground plane with a grid of vias. The exposed pad also doubles as a low-inductance ground return for the ADC and DAC, which helps keep conversion noise down.

Peripheral set for motor control and sensor fusion

The STM32F071CBU6 includes DMA, PWM, and a WDT — the basic building blocks for a sensorless BLDC motor controller or a multi-axis stepper driver. The 13-channel ADC lets you sample current on all three phases plus a DC-link voltage in one conversion sequence. HDMI-CEC is also present, which is unusual at this price point and useful for consumer AV applications.

That means no last-time-buy scramble and no forced redesign for the next few years.

Frequently asked questions

What is the closest pin-compatible alternative to STM32F071CBU6?

Within the STM32F0 series, the STM32F072CBU6 is a direct pin-compatible upgrade that adds a USB 2.0 full-speed device controller and a few extra peripherals while keeping the same 48-UFQFN footprint and supply range. If you need more Flash or RAM, stepping up to the STM32F091 family requires a package change.

Can STM32F071CBU6 be used for motor control?

Yes, the part includes PWM timers, a 13-channel 12-bit ADC, and DMA — enough to run a sensorless BLDC or stepper motor control loop. The 48 MHz Cortex-M0 core can handle the commutation math and current regulation at moderate PWM frequencies.

What development board supports STM32F071CBU6?

STMicroelectronics offers the STM32F0DISCOVERY board (STM32F072RB-based) and the NUCLEO-F072RB board, both of which use the same STM32F0 series and can be used to prototype code for the STM32F071CBU6 with minor peripheral adjustments. The STM32F0 series shares a common HAL and register map.