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STMicroelectronics STM32L052T8Y7TR — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

STM32L052T8Y7TR STM32L0 ARM Cortex-M0+ MCU, 32 MHz

MPNSTM32L052T8Y7TR
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STMicroelectronics STM32L052T8Y7TR, STM32L0 series, 32-Bit ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 29 I/O, 1.65 V to 3.6 V, -40°C to 105°C, 36-WLCSP.

$2.3811Ref. price · indicative, final on quote
STM32L052T8Y7TR datasheet
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  • 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.
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Specifications

STM32L052T8Y7TR Technical Specifications
ParameterValue
SeriesSTM32L0
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 105°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, USB
Number of i (O)29
Core processorARM® Cortex®-M0+
Case36-UFBGA, WLCSP
Data convertersA/D 16x12b; D/A 1x12b
Program memory size64KB (64K x 8)

Product details

32 MHz Cortex-M0+ with 64 KB Flash — the ultra-low-power sweet spot

It is designed for battery-powered and energy-harvesting applications where every microamp matters — think portable medical devices, sensor nodes, and industrial IoT endpoints.

Peripheral set and connectivity for sensor fusion and USB

Connectivity covers I2C, IrDA, SPI, UART/USART, and USB — enough to interface with MEMS sensors, displays, and a host controller over a single cable. The 29 I/O lines in the 36-WLCSP package give reasonable pin availability for a compact design.

36-WLCSP: tiny footprint, rework considerations

Board area is minimal, ideal for space-constrained PCBs in wearables or sensor modules. Rework requires a hot-air profile matched to the small thermal mass; the package is moisture-sensitive, so bake before reflow if the sealed bag has been open past the floor-life window. The 29 I/O are distributed as solder bumps on a fine pitch — verify the PCB land pattern against the ST application note before layout.

The base product number is STM32L052, and the full family includes density and package variants for design flexibility.

Frequently asked questions

What are the alternatives or equivalents to STM32L052T8Y7TR?

Within the STM32L0 series, the STM32L051T8Y7TR is a close pin-compatible alternative. The key difference is the STM32L052 includes USB and a DAC, while the STM32L051 omits those peripherals. Both share the same 32 MHz Cortex-M0+ core, 64 KB Flash, and 36-WLCSP package. For a drop-in replacement check the pinout — the USB pins on the L052 are no-connects on the L051, so the PCB layout is compatible.