STM32L052R8T6

Microcontrollers Overview

The STM32L052R8T6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 32 MHz. It features 64 Kbytes of Flash program memory, 8 Kbytes of SRAM, and 2 Kbytes of data EEPROM. The device integrates crystal-less USB 2.0 connectivity, a 12-bit ADC with hardware oversampling, a 12-bit DAC, and two ultra-low-power comparators. Communication interfaces include up to two I2C, two SPIs, one I2S, two USARTs, and one LPUART. It operates within a voltage range of 1.65 V to 3.6 V and is housed in a 64-LQFP package.

Microcontrollers Feature Summary

• Integrates crystal-less USB 2.0 connectivity for simplified interface design without external oscillators.
• Provides high power efficiency through multiple low-power modes including Standby and Stop, optimized for battery-operated applications.
• Includes advanced analog peripherals such as a 12-bit ADC with hardware oversampling and a 12-bit DAC for signal processing.
• Features capacitive sensing channels to enable touch sensing functionality directly on GPIO pins.

Microcontrollers Applications

• Portable devices requiring ultra-low power consumption
• USB-enabled consumer electronics
• Battery-powered sensor nodes
• Touch-sensitive user interfaces

Microcontrollers Procurement Notes

Verify the specific suffix T7 or T6 against the datasheet to confirm package type and temperature range. Ensure the order quantity matches distributor availability. Confirm that the 64-LQFP footprint aligns with the PCB layout. Check for RoHS compliance status if required by regional regulations. Validate the revision level of the silicon before finalizing production orders.

Microcontrollers Selection Notes

Select this model when crystal-less USB connectivity is required alongside low power constraints. Compare storage requirements against the 64 KB Flash limit. Evaluate if the 32 MHz clock speed meets real-time processing needs. Consider the 1.65 V minimum supply voltage for battery management systems. Verify peripheral counts against application complexity.

Microcontrollers Part Context

This component belongs to the STM32L0 series of ultra-low-power microcontrollers. It shares the Cortex-M0+ architecture with other members like the STM32L051 but adds USB connectivity. The R8 suffix indicates 64 Kbytes of Flash memory. The T6/T7 suffix denotes the LQFP-64 package variant. This series targets cost-sensitive, energy-efficient embedded designs.

Microcontrollers Replacement Considerations

STM32L051R8T6 offers identical memory and core specifications but lacks the integrated USB module. STM32L052R6T6 provides reduced Flash memory capacity while maintaining similar peripheral sets. Cross-referencing pin compatibility and software libraries is essential when substituting these variants.