STMicroelectronics STM32L152V8T6

Overview

STM32L152V8T6 from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller in LQFP100 package, featuring 128 KB Flash, 16 KB SRAM, 4 KB EEPROM with ECC, integrated LCD controller (8×40 segments), USB 2.0 interface, and dual 12-bit DACs. It operates from 1.65 V to 3.6 V across –40°C to +105°C and targets battery-powered industrial sensors and portable medical devices requiring long runtime and on-chip analog integration.

For engineers reviewing the STM32L152V8T6 datasheet, STM32L152V8T6 pinout, STM32L152V8T6 application, or STM32L152V8T6 equivalent, key selection criteria include standby current (0.3 µA), 12-bit ADC with 24 channels and 1 Msps sampling, USB 2.0 support with internal 48 MHz PLL, LCD driver capability, and ultra-low I/O leakage (10 nA).

Technical Context

The STM32L152V8T6 implements dynamic voltage scaling and multiple low-power modes-Stop (0.57 µA), Standby (0.3 µA), and Low-power Run (9 µA)-with sub-8 µs wakeup latency. Its Cortex-M3 core runs up to 32 MHz with 1.25 DMIPS/MHz performance and includes a memory protection unit (MPU) for secure task isolation.

Clock architecture integrates six sources: HSE (1–24 MHz), LSE (32.768 kHz RTC), HSI (16 MHz ±1%), LSI (37 kHz), MSI (65 kHz–4.2 MHz), and a programmable PLL for CPU and USB clocks. Analog subsystem includes two ultra-low-power comparators with window mode and wake-up capability, plus temperature sensor and VREFINT reference.

Key Specifications

Pinout & Package

LQFP100 package: 100-pin low-profile quad flat package, 14 mm × 14 mm body, 0.5 mm pitch, exposed thermal pad (EPAD) for enhanced thermal dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L152V8T6, STM32L432KCU6 trades LCD/E2PROM integration for higher compute density and lower standby, while EFM32PG12B500F1024GL125 emphasizes security and memory at the expense of analog peripheral completeness and USB connectivity.

Availability

STM32L152V8T6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial wireless sensor nodes, and low-power HVAC controllers requiring stable component supply across extended product lifecycles.

Supply support for STM32L152V8T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive semiconductors since 1987.

The STM32L1 series targets ultra-low-power embedded applications demanding extended battery life, integrated analog peripherals, and robust operation across industrial temperature ranges - optimized for metering, wearable health, and environmental monitoring.

FAQ

Does STM32L152V8T6 support USB device mode without external crystal?

Yes. The STM32L152V8T6 integrates an internal 48 MHz PLL fed by its 16 MHz HSI RC oscillator, enabling full-speed USB 2.0 device operation without an external crystal. This reduces BOM cost and board space while maintaining USB compliance under specified voltage and temperature conditions.

What is the maximum operating temperature for STM32L152V8T6 in industrial applications?

The STM32L152V8T6 is qualified for operation from –40°C to +105°C ambient temperature. This extended range is validated per ST's industrial-grade qualification standards and supports deployment in harsh environments such as outdoor utility meters, factory-floor controllers, and automotive cabin modules.

How does the integrated LCD controller reduce system cost compared to discrete solutions?

The LCD controller supports up to 8×40 segments with on-board step-up converter, contrast adjustment, and blinking mode - eliminating the need for external bias generators, charge pumps, or dedicated LCD driver ICs. This reduces component count by 3–5 parts and simplifies PCB layout and firmware development.

Can the 4 KB EEPROM be used for storing calibration data across power cycles?

Yes. The 4 KB true EEPROM includes built-in ECC and guarantees ≥100,000 write/erase cycles with data retention exceeding 20 years at 85°C. It is accessed via standard HAL APIs and designed specifically for persistent storage of sensor calibration coefficients, device IDs, and configuration parameters without external nonvolatile memory.