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STMicroelectronics STM32F051R8T6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F051R8T6 ARM Cortex-M0 MCU, 48 MHz, 64 KB Flash

MPNSTM32F051R8T6
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STMicroelectronics STM32F051R8T6, STM32F0 series, 32-bit ARM Cortex-M0 MCU, 48 MHz, 64 KB Flash, 8 KB SRAM, 55 I/O, 64-LQFP, -40°C to 85°C, 2 V to 3.6 V supply.

$4.5100Ref. price · indicative, final on quote
STMicroelectronics STM32F051R8T6 datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32F0
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F051R8T6 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 size8K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityHDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)55
Core processorARM® Cortex®-M0
Case64-LQFP
Data convertersA/D 19x12b; D/A 1x12b
Program memory size64KB (64K x 8)

Product details

48 MHz Cortex-M0 — the workhorse core for sensor and control loops

The 55 I/O pins in a 64-LQFP package give you room for parallel sensor inputs or a local display bus without multiplexing.

Peripheral set and analog front-end

The 19-channel 12-bit ADC and single 12-bit DAC handle multi-sensor acquisition and analog output without external converters.

The exposed pad is not present on this QFP variant, so thermal dissipation goes through the leads — keep the copper pour on the board to help with junction temperature if running the core and peripherals near maximum.

Frequently asked questions

Can STM32F051R8T6 be programmed using ST-Link/V2?

Yes, the STM32F0 series uses the standard SWD debug interface, which the ST-Link/V2 supports. The BOOT0 pin strapped low boots from internal Flash, and the SWD port stays alive even with the watchdog enabled.

What is a direct replacement for STM32F051R8T6 if it goes EOL?

The STM32F0 series includes pin-compatible density variants (e.g., STM32F051R4T6 with 16 KB Flash) and the STM32L151CBU6A is a functionally similar ARM Cortex-M3 part but with a different pinout and lower supply voltage — verify footprint compatibility before substituting.

What is the exact footprint and package dimensions of STM32F051R8T6?

The package is a 64-LQFP with a 10 mm x 10 mm body and 0.5 mm lead pitch. The exact mechanical drawing is in the STM32F0 reference manual and the STM32F051x8 datasheet — confirm the footprint against your PCB layout before ordering.