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STMicroelectronics STM32L072KBU6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L072KBU6 ARM Cortex-M0+ MCU, 32 MHz, 128 KB Flash

MPNSTM32L072KBU6
Active

STMicroelectronics STM32L072KBU6, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 128 KB Flash, 20 KB SRAM, 6 KB EEPROM, USB, 23 I/O, 1.65 V to 3.6 V, -40°C to 85°C, 32-UFQFPN (5x5 mm).

$4.9200Ref. price · indicative, final on quote
STMicroelectronics STM32L072KBU6 datasheet (PDF)
Packaging32-UFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesSTM32L0
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L072KBU6 specifications
ParameterValue
SeriesSTM32L0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTray
RAM size20K x 8
Core size32-Bit Single-Core
EEPROM size6K x 8
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART, USB
Number of i (O)23
Core processorARM® Cortex®-M0+
Case32-UFQFN Exposed Pad
Data convertersA/D 10x12b; D/A 2x12b
Program memory size128KB (128K x 8)

Product details

32 MHz Cortex-M0+ with 128 KB Flash — what that buys you

USB connectivity is on-chip, which makes this a natural fit for battery-powered IoT sensors, portable medical monitors, or USB dongles that need to log data and talk to a host.

Industrial temperature grade and the 32-UFQFPN package

The 32-UFQFPN package (5x5 mm) with an exposed pad pulls heat into the PCB ground plane — important if you're running the core at 32 MHz and the USB peripheral simultaneously.

ST lists the STM32L072KBU6 as Active. The STM32L0 family is ST's mainstream ultra-low-power series, so volume allocation and lead times are generally stable through authorized channels.

Frequently asked questions

Is STM32L072KBU6 compatible with STM32L072KBU6TR?

The 'TR' suffix typically denotes tape-and-reel packaging; the silicon and firmware are identical. The UFQFPN package and pinout are the same, so a board designed for the tray version will accept the reel variant without a layout change.

What is the programming interface for STM32L072KBU6?

It uses the standard SWD (Serial Wire Debug) two-wire interface — SWDIO and SWCLK — plus reset and ground. No JTAG needed. Any ST-Link or J-Link probe that speaks Cortex-M0+ SWD will program and debug it.