Skip to main content
STMicroelectronics STM8L151K4T3 — Microcontrollers & Processors (MCU / MPU / DSP)

STM8L151K4T3 STMicroelectronics 8-bit MCU, 16 MHz

MPNSTM8L151K4T3
Active

ST STM8L EnergyLite series 8-bit MCU, STM8L151K4T3, core 16 MHz, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 30 I/O, 12-bit ADC/DAC, 1.8V–3.6V, -40°C to 125°C, 32-LQFP.

$1.6211Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8L151K4T3 specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 125°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-LQFP
Data convertersA/D 22x12b; D/A 1x12b
Program memory size16KB (16K x 8)

Product details

16 MHz 8-bit core with EnergyLite efficiency

The STM8L151K4T3 is an 8-bit microcontroller from ST's STM8L EnergyLite series, built around the STM8 core running at 16 MHz.

Peripheral set and connectivity for sensor-heavy designs

Thirty general-purpose I/O lines give enough headroom for a keypad, LEDs, and a few discrete signals.

Frequently asked questions

What is the price of STM8L151K4T3 in 100-piece quantity?

Buyers need accurate pricing for BOM costing and budgeting.

Is STM8L151K4T3 obsolete or active?

Lifecycle status determines whether buyers can design it in or need to find a replacement.

Where can I buy STM8L151K4T3 in stock?

Immediate stock availability is critical for production or prototype builds.

What is the pinout and package of STM8L151K4T3?

Design engineers need pin compatibility to validate layout and routing.

What is a direct replacement or equivalent for STM8L151K4T3?

Sourcing buyers and technicians need drop-in alternatives when primary part is unavailable.

Does STM8L151K4T3 support I2C and SPI?

Engineers check connectivity features to ensure the MCU meets system communication requirements.