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STMicroelectronics STM32F031K6T7 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F031K6T7 ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash

MPNSTM32F031K6T7
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STMicroelectronics STM32F0 series STM32F031K6T7, ARM Cortex-M0, 32-bit, 48 MHz, 32 KB Flash, 4K x 8 RAM, 2.0-3.6 V, -40 to 105 °C, 32-LQFP.

$3.8500Ref. price · indicative, final on quote
STMicroelectronics STM32F031K6T7 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F031K6T7 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
PackageTray
RAM size4K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)25
Core processorARM® Cortex®-M0
Case32-LQFP
Data convertersA/D 13x12b
Program memory size32KB (32K x 8)

Product details

48 MHz Cortex-M0 — what the core speed buys you

At 48 MHz the Cortex-M0 delivers about 0.95 DMIPS/MHz, enough for sensor polling, UART/I²C protocol handling, and simple PID loops. The 32 KB Flash is the firmware ceiling — if your application fits in 28 KB of compiled code, this part leaves headroom; if it needs 40 KB, step up to the STM32F031K6's 64 KB sibling. The 4 KB SRAM is tight for buffered communication stacks; plan for a ring-buffer approach rather than full-frame double-buffering.

25 I/O pins in the 32-LQFP package give access to a 13-channel 12-bit ADC, I²C, SPI, USART with LIN and IrDA support, plus a PWM timer. DMA and I²S are on board for audio or data-streaming tasks without CPU overhead.

No last-time-buy notice has been issued, and the STM32F0 series remains in volume production.

Frequently asked questions

What is the closest pin-compatible alternative to STM32F031K6T7?

The STM32F031K6T7 extends that to -40 to 105 °C. For higher Flash density in the same package, look at the STM32F031K8T7 (64 KB Flash, 8 KB SRAM). All share the same ARM Cortex-M0 core and peripheral set.

What are the specifications of STM32F031K6T7?

It has 32 KB Flash, 4 KB SRAM, 25 I/O pins, a 13-channel 12-bit ADC, and supports I²C, SPI, USART, I²S, and PWM. It operates from 2.0 to 3.6 V over a -40 to 105 °C temperature range in a 32-LQFP package.