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STMicroelectronics STM32L051R8H6TR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32L051R8H6TR ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash

MPNSTM32L051R8H6TR
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ST STM32L0 series, ARM Cortex-M0+ 32-bit MCU, 32 MHz, 64 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 64-TFBGA, -40 to 85 °C, Tape & Reel.

$2.1553Ref. price · indicative, final on quote
STMicroelectronics STM32L051R8H6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32L051R8H6TR specifications
ParameterValue
SeriesSTM32L0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTape & Reel (TR)
RAM size8K x 8
Core size32-Bit Single-Core
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)50
Core processorARM® Cortex®-M0+
Case64-TFBGA
Data convertersA/D 15x12b
Program memory size64KB (64K x 8)

Product details

Low-power ARM Cortex-M0+ in a 5x5 mm BGA

The STM32L051R8H6TR is a 32-bit ARM Cortex-M0+ MCU from ST's STM32L0 ultra-low-power series, clocked at 32 MHz. It packs 64 KB of Flash program memory, 8 KB of SRAM, and 2 KB of embedded EEPROM, all in a 64-ball TFBGA package measuring 5x5 mm.

Memory map and field-update reality

The 2 KB EEPROM emulated in Flash (or the dedicated 2 KB true EEPROM block) handles calibration constants and fault logs without wearing the main program store. With 8 KB RAM, you are not running a TCP/IP stack with large buffers; keep DMA transfers under 2 KB to avoid heap fragmentation.

Industrial temperature and package constraints

Frequently asked questions

What is STM32L051R8H6TR's core speed?

The ARM Cortex-M0+ core runs at 32 MHz, which is the maximum clock for this ultra-low-power series.

What package does STM32L051R8H6TR come in?

It is supplied in a 64-ball TFBGA package (5x5 mm body, 0.5 mm pitch), intended for surface-mount assembly with reflow soldering.