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STMicroelectronics STM32L071KZU6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L071KZU6 ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash

MPNSTM32L071KZU6
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STMicroelectronics STM32L071KZU6, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash, 20 KB SRAM, 6 KB EEPROM, 25 I/O, 1.65 V to 3.6 V, -40 to 85 °C, 32-UFQFPN (5x5 mm).

$4.9900Ref. price · indicative, final on quote
STMicroelectronics STM32L071KZU6 datasheet (PDF)
Packaging32-UFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesSTM32L0
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L071KZU6 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, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)25
Core processorARM® Cortex®-M0+
Case32-UFQFN Exposed Pad
Data convertersA/D 10x12b
Program memory size192KB (192K x 8)

Product details

32 MHz Cortex-M0+ with 192 KB Flash for low-power edge control

The part integrates a 10-channel 12-bit ADC, brown-out detect, POR, DMA, I²S, PWM, and a watchdog timer, reducing external BOM count for a typical sensor-fusion or data-logging node. The internal oscillator keeps the board simple, though an external crystal can be used when tighter timing is needed.

The base product number STM32L071 covers a density family sharing the same pinout across Flash and RAM options, giving a migration path within the same board layout if firmware grows.

The ROHS3 compliance covers EU regulatory requirements without exemption paperwork.

Frequently asked questions

What is the closest pin-compatible alternative to STM32L071KZU6?

Within the STM32L071 base product number family, devices share the same pinout across Flash and RAM density options. The STM32L071K8U6 is a lower-density sibling with 64 KB Flash and 20 KB SRAM in the same 32-UFQFPN package, offering a drop-in cost-reduced alternative when firmware fits the smaller memory.

What is STM32L071KZU6's listed speed?

The core is rated for a maximum clock speed of 32 MHz, driven by an internal oscillator. The 32 MHz ceiling defines the throughput for sensor polling, control loops, and communication protocol handling.