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STM32L152R8T6TR

Ultra-low-power Cortex-M3 MCU, 64KB Flash, LCD, USB, 0.3uA standby, LQFP-64

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Manufacturer Part：

STM32L152R8T6TR

Package：

LQFP-64 (10.0 x 10.0 x 1.4 mm)

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Description

Product Overview

The STM32L152R8T6TR from STMicroelectronics is an ultra-low-power ARM Cortex-M3 microcontroller with 64KB Flash, 10KB RAM, 4KB EEPROM, LCD controller, and USB 2.0. Operating at up to 32MHz from a 1.65V to 3.6V supply, it achieves 214uA/MHz in run mode and 0.3uA in standby mode. The device features 20 capacitive sensing channels and is available in an LQFP-64 package.

Key Specifications

Core ARM Cortex-M3 32-bit
Max Clock Frequency 32MHz
Flash Memory 64KB with ECC
RAM 10KB (SRAM)
EEPROM 4KB with ECC
I/O Pins 51
LCD Controller Yes (up to 8×40 segments)
USB USB 2.0 Full Speed
ADC 12-bit, 16 channels
DAC 2x 12-bit
Communication 3x USART, 2x SPI, 2x I2C
Supply Voltage 1.65V to 3.6V
Operating Temperature -40C to +85C
Package LQFP-64 (10x10mm)
Status NRND

Features

  • Ultra-low-power ARM Cortex-M3 at 32MHz
  • 0.3uA standby mode, 0.57uA stop mode, 214uA/MHz run mode
  • Integrated LCD controller with up to 320 segments
  • USB 2.0 Full Speed device interface
  • 12-bit ADC and dual 12-bit DAC
  • 20 capacitive sensing channels for touch applications
  • 4KB true EEPROM with ECC for data retention
  • DMA controller for peripheral offloading
  • Real-time clock with calendar and alarm functions

Applications

  • Portable and battery-powered devices
  • Smart meters and energy monitoring
  • Health and fitness wearables
  • Industrial sensors and handheld instruments
  • LCD display consumer products

The STM32L152R8T6TR from STMicroelectronics is an ultra-low-power ARM Cortex-M3 microcontroller with 64KB Flash, 10KB RAM, and 4KB EEPROM. Operating at up to 32MHz from a 1.65V to 3.6V supply, it achieves industry-leading power efficiency at 214uA/MHz in run mode and 0.3uA in standby. The device integrates an LCD controller supporting up to 320 segments, USB 2.0 Full Speed, 12-bit ADC, dual 12-bit DAC, and 20 capacitive sensing channels. The NRND status indicates availability for existing designs with migration paths to newer STM32L4/L5 series.

The STM32L152R8T6TR is based on the ARM Cortex-M3 processor core with a multi-AHB bus matrix connecting Flash, SRAM, and peripherals. The ultra-low-power architecture uses multiple voltage domains and power modes. In Run mode, the CPU executes from Flash at up to 32MHz. Low-Power Run mode uses the internal low-speed oscillator. Sleep mode stops the CPU but keeps peripherals active. Stop mode retains SRAM and register contents with sub-uA consumption. Standby mode powers down most of the device, retaining only the RTC and backup registers at 0.3uA. The LCD controller directly drives segment and common lines for glass displays. The USB interface implements a Full Speed device with dedicated packet buffer SRAM. The capacitive sensing module scans touch channels autonomously.

Pin Name Type Function
1 VBAT Power Battery backup for RTC and backup registers
2 PC13/RTC_AF1 I/O Port C13 / RTC alarm / tamper
3-4 PC14-PC15/OSC32 I/O 32kHz oscillator / GPIO
5-6 PF0-PF1/OSC I/O HSE oscillator / GPIO
7 NRST Reset System reset (active low)
8-13 PC0-PC5 I/O Port C / ADC / LCD
14 VSSA Power Analog ground
15 VDDA Power Analog supply
16-23 PC6-PC13 I/O Port C / USART / LCD / TIM
24-31 PD0-PD7 I/O Port D / FSMC / LCD
32-39 PB0-PB7 I/O Port B / ADC / TIM / I2C / LCD
40 BOOT0 Control Boot mode selection
41-48 PB8-PB15 I/O Port B / TIM / SPI / LCD / USB
49-55 PA0-PA7 I/O Port A / TIM / USART / ADC / DAC
56-63 PA8-PA15 I/O Port A / TIM / SPI / USART / USB
64 VDD Power Digital supply (1.65-3.6V)
  • Smart metering and energy monitoring systems
  • Portable health monitoring and fitness wearables
  • Industrial handheld instruments with LCD displays
  • USB-powered consumer devices with touch interface
  • Building automation and environmental sensors
Manufacturer Part Number Package Notes
STMicroelectronics STM32L152RET6 LQFP-64 512KB Flash upgrade, pin-compatible
STMicroelectronics STM32L476RGT6 LQFP-64 Cortex-M4 upgrade, recommended migration
STMicroelectronics STM32L432KCU6 UFQFPN-32 Smaller footprint alternative
NXP LPC54114J256BD64 LQFP-64 Cortex-M4, dual-core alternative
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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