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STMicroelectronics STM8L101K3U6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM8L101K3U6TR 8-bit MCU, STM8L EnergyLite, 16 MHz

MPNSTM8L101K3U6TR
Active

STMicroelectronics STM8L101K3U6TR, STM8L EnergyLite 8-bit MCU, 16 MHz, 8 KB Flash, 1.5 KB RAM, 2 KB EEPROM, 1.65V-3.6V, 30 I/O, I²C/SPI/UART, -40°C~85°C, 32-UFQFN exposed pad.

$1.0449Ref. price · indicative, final on quote
STMicroelectronics STM8L101K3U6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8L101K3U6TR specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTape & Reel (TR)
RAM size1.5K x 8
Core size8-Bit
EEPROM size2K x 8
PeripheralsInfrared, POR, PWM, WDT
ConnectivityI²C, SPI, UART/USART
Number of i (O)30
Core processorSTM8
Case32-UFQFN Exposed Pad
Program memory size8KB (8K x 8)

Product details

STM8L101K3U6TR — 8-bit MCU in the EnergyLite family

Package and mounting — 32-UFQFN with exposed pad

Housed in a 32-UFQFN exposed-pad package (supplier device package 32-UFQFPN, 5x5 mm), this is a surface-mount part intended for reflow assembly. The exposed thermal pad needs a via-stitched ground plane on the PCB to pull heat out of the die; without it, continuous operation above 70°C ambient at full I/O load will push junction temperature. The 5x5 mm footprint fits tight layouts in handheld or wearable designs.

Peripherals and connectivity for control-loop tasks

With 30 I/O lines available, this MCU can handle a modest keypad plus a small character LCD and still leave pins for a serial debug header.

STMicroelectronics lists the STM8L101K3U6TR as Active (current production).

Frequently asked questions

What is the datasheet for STM8L101K3U6TR?

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What is the replacement or equivalent of STM8L101K3U6TR?

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Is STM8L101K3U6TR pin compatible with STM8L101K3U6?

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