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STMicroelectronics STM32F091VCT6U — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F091VCT6U ARM Cortex-M0 MCU, 48 MHz, 256 KB Flash

MPNSTM32F091VCT6U
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ST STM32F0 series 32-bit ARM Cortex-M0 MCU, STM32F091VCT6U, 48 MHz, 256 KB Flash, 32 KB RAM, 88 I/O, 19x12b ADC, 2x12b DAC, CAN, I²C, SPI, UART, -40°C to 85°C, 100-LQFP.

$7.3600Ref. price · indicative, final on quote
STMicroelectronics STM32F091VCT6U datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F091VCT6U specifications
ParameterValue
SeriesSTM32F0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed48MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)88
Core processorARM® Cortex®-M0
Case100-LQFP
Data convertersA/D 19x12b; D/A 2x12b
Program memory size256KB (256K x 8)

Product details

The STMicroelectronics STM32F091VCT6U is a 32-bit ARM Cortex-M0 MCU from the STM32F0 series, clocked at 48 MHz with 256 KB Flash and 32 KB RAM. This part is aimed at industrial control, sensor aggregation, and mixed-signal applications where a single chip handles both logic and analog front-end tasks.

48 MHz Cortex-M0 — enough for the control loop

The core runs at 48 MHz, sufficient for real-time control loops and communication stacks.

Analog front-end on-chip

The 19-channel 12-bit ADC and dual 12-bit DAC let this MCU sample multiple analog inputs and generate analog outputs without external converters. That is useful for a panel that reads thermocouples, potentiometers, or current shunts and drives an analog meter or a setpoint voltage.

No active cooling needed in most sealed cabinets.

Frequently asked questions

What is STM32F091VCT6U's listed speed?

The core runs at 48 MHz. That is the ARM Cortex-M0 clock rate, sufficient for real-time control loops and communication stacks without the power draw of higher-speed parts.

What is the closest pin-compatible alternative to STM32F091VCT6U?

Within the STM32F0 series, the STM32F091VCT6 shares the same 100-LQFP footprint and peripheral set. The difference is the package variant — the 'U' suffix on this part indicates a tray-packaged unit. For a drop-in replacement, verify the exact memory and peripheral configuration against your firmware requirements.

What compliance documentation does this part have?

As an STMicroelectronics product, the STM32F091VCT6U is RoHS compliant by default for the STM32F0 series. Specific certificates (REACH, UL, IEC) are available from the manufacturer's documentation portal; the part carries the standard industrial-grade compliance for lead-free assembly.