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STMicroelectronics STM32F031K6U7TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F031K6U7TR ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash

MPNSTM32F031K6U7TR
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STMicroelectronics STM32F031K6U7TR, 32-bit ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash, 4 KB SRAM, 27 I/O, 2 V to 3.6 V supply, -40°C to 105°C, 32-UFQFPN (5x5 mm).

$1.8489Ref. price · indicative, final on quote
STMicroelectronics STM32F031K6U7TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F031K6U7TR 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 size4K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)27
Core processorARM® Cortex®-M0
Case32-UFQFN Exposed Pad
Data convertersA/D 13x12b
Program memory size32KB (32K x 8)

Product details

48 MHz Cortex-M0 with 32 KB Flash — entry-level control MCU

32-UFQFPN (5x5 mm) — compact with exposed pad

Housed in a 32-UFQFN Exposed Pad package (5x5 mm body), this MCU is designed for surface-mount assembly on space-constrained PCBs. The exposed pad provides a low-thermal-resistance path to the board — critical if the part is running near the 105°C ceiling or driving multiple PWM outputs simultaneously.

If a second-source concern arises, the STM32F0 family includes pin-compatible Flash-density variants that share the same 32-UFQFPN footprint, allowing a BOM-level swap without a board spin.

Frequently asked questions

What is the core processor of STM32F031K6U7TR?

The core is an ARM Cortex-M0, a 32-bit single-core processor running at up to 48 MHz.