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STMicroelectronics STM32L052K8T7 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L052K8T7 ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash

MPNSTM32L052K8T7
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STMicroelectronics STM32L052K8T7, ARM Cortex-M0+, 32-Bit Single-Core MCU, 32 MHz, 64KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 27 I/O, I2C/SPI/USART/USB, 1.65V-3.6V, -40°C~105°C, 32-LQFP.

$4.8200Ref. price · indicative, final on quote
STMicroelectronics STM32L052K8T7 datasheet (PDF)
Packaging32-LQFP
RoHSROHS3 Compliant
SeriesSTM32L0
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L052K8T7 specifications
ParameterValue
SeriesSTM32L0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 105°C (TA)
Speed32MHz
PackageTray
RAM size8K x 8
Core size32-Bit Single-Core
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI2C, IrDA, SPI, UART/USART, USB
Number of i (O)27
Core processorARM® Cortex®-M0+
Case32-LQFP
Data convertersA/D 10x12b; D/A 1x12b
Program memory size64KB (64K x 8)

Product details

What the 32 MHz Cortex-M0+ buys you in a battery-powered design

The STM32L052K8T7: The STM32L052K8T6 is ST's ultra-low-power entry in the STM32L0 series, built around an ARM Cortex-M0+ core clocked at 32 MHz. On-chip peripherals include a 12-bit ADC with 10 channels, a single 12-bit DAC, and a full-speed USB 2.0 interface, plus the usual I2C, SPI, and USART serial ports.

Memory sizing and the firmware budget

The 2 KB EEPROM is a genuine separate array — not emulated in Flash — so you can write single bytes without sector-erase overhead. If your firmware image plus data logging exceeds 64 KB, you step up to the STM32L073 series (192 KB Flash) or move to the STM32L1 family, which offers up to 512 KB Flash at the same 32 MHz core speed.

The ROHS3 compliance covers EU and global environmental requirements without exemptions.

Frequently asked questions

Can STM32L052K8T7 replace STM32L051K8T7?

Yes, it is a pin-compatible drop-in replacement in the same 32-LQFP package. The L052 adds a full-speed USB interface and a 12-bit DAC that the L051 lacks. Firmware must be updated to enable those peripherals, and the active current draw is slightly higher when USB is enabled.

Is STM32L052K8T7 suitable for battery-powered devices?

Yes. The Cortex-M0+ core is designed for ultra-low-power operation, and the supply range down to 1.65 V lets it run directly from two alkaline cells or a single Li-ion battery without an external regulator. The separate 2 KB EEPROM avoids Flash wear for frequent data logging, further extending system life.