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STMicroelectronics STM8L151K6U6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8L151K6U6 8-Bit MCU, 16 MHz, 32 KB Flash, 32-UFQFPN

MPNSTM8L151K6U6
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STMicroelectronics STM8L EnergyLite series, STM8L151K6U6, 8-Bit MCU, 16MHz, 32KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 30 I/O, 1.8V-3.6V, -40°C to 85°C, 32-UFQFPN (5x5 mm).

$2.8000Ref. price · indicative, final on quote
STMicroelectronics STM8L151K6U6 datasheet (PDF)
Packaging32-UFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesSTM8L EnergyLite
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM8L151K6U6 specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed16MHz
PackageTray
RAM size2K x 8
Core size8-Bit
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, DMA, IR, POR, PWM, WDT
ConnectivityI2C, IrDA, SPI, UART/USART
Number of i (O)30
Core processorSTM8
Case32-UFQFN Exposed Pad
Data convertersA/D 22x12b; D/A 1x12b
Program memory size32KB (32K x 8)

Product details

The STM8L151K6U6 is an 8-bit MCU from ST's STM8L EnergyLite series, built around the STM8 core running at 16 MHz. The 22-channel 12-bit ADC and single 12-bit DAC cover analog sensor acquisition and analog output generation on one chip, which saves board space in battery-powered or industrial control designs.

The 30 I/O lines in a 5x5 mm 32-UFQFPN package with exposed pad help with thermal dissipation when driving moderate loads.

Peripherals and connectivity — what hooks up

On the communication side, the MCU includes I2C, SPI, UART/USART, and IrDA interfaces — enough for typical sensor buses, serial displays, or wireless module links.

No LTB risk to manage here.

Frequently asked questions

How does the STM8L151K6U6 compare to the STM32L151CBU6A?

If your firmware is already on the STM8 architecture, the STM32L1 would require a full port.