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STMicroelectronics STM32F051K4U7TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F051K4U7TR ARM Cortex-M0 MCU, 48 MHz, 16 KB Flash

MPNSTM32F051K4U7TR
Active

STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-bit MCU, 48 MHz, 16 KB Flash, 8K x 8 RAM, 27 I/O, 2V to 3.6V supply, -40°C to 105°C, 32-UFQFN exposed pad.

$1.9812Ref. price · indicative, final on quote
STMicroelectronics STM32F051K4U7TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F051K4U7TR specifications
ParameterValue
SeriesSTM32F0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C~105°C(TA)
Speed48MHz
PackageTape & Reel (TR)
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)27
Core processorARM® Cortex®-M0
Case32-UFQFN Exposed Pad
Data convertersA/D 13x12b; D/A 1x12b
Program memory size16KB (16K x 8)

Product details

The STM32F051K4U7TR: The Flash is 16 KB (16K x 8) and the SRAM is 8K x 8.

Integrated analog: 13-channel 12-bit ADC and one 12-bit DAC

The ADC covers multiple analog inputs (temperature, current sense, potentiometer feedback) without an external mux. The DAC can generate a reference voltage or analog output for a simple control loop.

Connectivity and peripherals — I²C, SPI, UART, LIN, and more

The number of I/O is 27.

Package and thermal: 32-UFQFN with exposed pad

The package is 32-UFQFN Exposed Pad.

The product status is Active.

Frequently asked questions

What is the difference between STM32F051K4U6 and STM32F051K4U7TR?

The difference is the packaging: the STM32F051K4U6 typically ships in tray or tube, while the STM32F051K4U7TR suffix indicates tape-and-reel (TR) packaging for automated pick-and-place. The silicon and specifications are identical.

Is STM32F051K4U7TR suitable for battery-powered applications?

Yes. For extended battery life, the part includes multiple low-power modes (Sleep, Stop, Standby) with typical Stop-mode current in the microamp range.