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STMicroelectronics STM8L151K6U6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM8L151K6U6TR STM8 8-bit MCU, 16 MHz, 32 KB Flash

MPNSTM8L151K6U6TR
Active

STMicroelectronics STM8L EnergyLite series, STM8L151K6U6TR, 8-Bit MCU, 16MHz, 32KB (32K x 8) FLASH, 2K x 8 RAM, 1K x 8 EEPROM, 1.8V ~ 3.6V, -40°C ~ 85°C, 30 I/O, UFQFPN-32.

$2.8000Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8L151K6U6TR 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
PackageTape & Reel (TR) Cut Tape (CT)
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 16 MHz clock rate on this STM8 core is the throughput ceiling for sensor polling, PWM updates, and communication handling. At this speed, a typical PID loop or UART transaction completes in a few microseconds, which is adequate for motor commutation at moderate RPM, battery management, and human-interface response.

Memory sizing for firmware and data logging

The 2 KB RAM is tight for buffered UART or SPI data streams — plan the stack and heap allocation carefully if the application uses multiple interrupt-driven peripherals.

Analog and peripheral set for mixed-signal designs

The ADC channel count is generous for monitoring multiple sensor inputs or battery cell voltages.

The 32-UFQFN exposed-pad package (5x5 mm) offers a compact footprint with a thermal pad for heat dissipation. The 30 available I/O pins provide enough GPIO for parallel interfaces or keypad scanning.

Supply voltage and power management

The EnergyLite architecture targets low-power operation, making it a candidate for battery-powered instruments, wireless sensor nodes, and portable medical devices.

Frequently asked questions

Can I replace STM8L151K6U6TR with STM8L151K6U6 or another MPN?

The STM8L151K6U6 and STM8L151K6U6TR differ only in packaging and reel format: the U6 suffix indicates the UFQFPN-32 package, while the TR suffix denotes Tape & Reel. The die and firmware are identical, so the U6 variant is a direct functional equivalent for the same package footprint. For other variants, verify the memory size and temperature grade match your BOM requirements.