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STMicroelectronics STM32L041K6U6TR — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

STM32L041K6U6TR ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash

MPNSTM32L041K6U6TR
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STMicroelectronics STM32L0 series, ARM® Cortex®-M0+ 32-Bit MCU, 32 MHz, 32KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, 25 I/O, 10x12b ADC, 1.8V-3.6V, -40°C to 85°C, 32-UFQFPN (5x5) exposed pad, Tape & Reel.

$1.7024Ref. price · indicative, final on quote
STM32L041K6U6TR datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

STM32L041K6U6TR Technical Specifications
ParameterValue
SeriesSTM32L0
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTape & Reel (TR)
RAM size8K x 8
Core size32-Bit Single-Core
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI2C, IrDA, LINbus, SPI, UART/USART
Number of i (O)25
Core processorARM® Cortex®-M0+
Case32-UFQFN Exposed Pad
Data convertersA/D 10x12b
Program memory size32KB (32K x 8)

Product details

32 MHz Cortex-M0+ in a 5x5 mm UFQFPN — what the memory map means for your BOM

The STM32L041K6U6TR is an STMicroelectronics ultra-low-power MCU built around the ARM Cortex-M0+ core running at 32 MHz. The 32-UFQFPN package with exposed pad (5x5 mm) keeps the board footprint small, and the 25 I/O lines plus a 10-channel 12-bit ADC give enough headroom for sensor-node or IoT-edge designs that don't need a full 64-pin part.

Peripherals and connectivity — what is on-chip

Connectivity covers I2C, IrDA, LINbus, SPI, and UART/USART, which covers most low-speed sensor and actuator interfaces. The data converter section is a 10-channel 12-bit ADC, adequate for reading analog sensors like thermistors, potentiometers, or current-sense resistors.

Tape & Reel — what the TR suffix means for the kitting line

The part ships in a reel suitable for volume production; if your CM needs tube or tray, make sure the BOM calls out the non-TR variant (STM32L041K6U6).

Frequently asked questions

What is the maximum clock speed of STM32L041K6U6TR?

The maximum core clock speed is 32 MHz, driven by an ARM Cortex-M0+ core. At this frequency the Flash requires zero wait states for most instructions, keeping execution efficient without extra latency.

What are the alternatives to STM32L041K6U6TR?

Within the STM32L0 series, pin-compatible density variants include the STM32L031K6 (16 KB Flash) and STM32L051K6 (64 KB Flash, more SRAM). All share the same 32-UFQFPN footprint and peripheral set, so a BOM swap requires only a firmware update and possibly adjusting the memory map.