STMicroelectronics STM32L152V8H6A

Overview

STM32L152V8H6A from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller featuring 128 KB Flash, 32 KB SRAM, 4 KB EEPROM with ECC, integrated LCD controller (up to 8×40 segments), and USB 2.0 interface. It operates from 1.65 V to 3.6 V across –40°C to +105°C and delivers 1.25 DMIPS/MHz performance. It targets battery-powered industrial sensors, portable medical devices, and smart metering systems requiring long runtime and on-chip analog integration.

For engineers reviewing the STM32L152V8H6A datasheet, STM32L152V8H6A pinout, STM32L152V8H6A application, or STM32L152V8H6A equivalent, key selection criteria include standby current (0.28 µA), 12-bit ADC (1 Msps, 24 channels), dual 12-bit DACs, ultra-low-power comparators, and LCD driver capability - all validated for operation down to 1.8 V analog supply.

Technical Context

The STM32L152V8H6A integrates a Cortex-M3 core with MPU, dynamic voltage scaling, and five low-power modes (Run, Sleep, Low-power Run, Stop, Standby) optimized for energy-constrained applications. Its clock system combines HSE (1–24 MHz), LSE (32.768 kHz RTC), HSI (16 MHz ±1%), LSI (37 kHz), and MSI (65 kHz–4.2 MHz), plus a USB PLL generating 48 MHz.

Analog subsystem includes a 12-bit ADC with up to 24 external channels and internal temperature sensor/VREFINT, two buffered 12-bit DACs, and two ultra-low-power comparators with window mode and wake-up capability. The LCD controller supports contrast adjustment and blinking, with on-board step-up converter - exclusive to STM32L152 variants.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), 100-pin quad flat leaded package with exposed thermal pad - suitable for industrial PCB assembly and offers robust thermal performance under continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L152V8H6A, STM32L432KC trades LCD/ECC EEPROM for higher compute and lower standby current, while STM32L072CZ reduces feature set and power envelope - making the V8H6A optimal when integrated LCD, EEPROM, and USB are mandatory in extended-temperature industrial designs.

Availability

STM32L152V8H6A 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 temperature and long product lifecycles.

Supply support for STM32L152V8H6A 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, MEMS, and automotive semiconductors since 1987.

The STM32L1 series targets ultra-low-power embedded applications demanding extended battery life, robust analog integration, and industrial-grade reliability - with the L152 variant specifically enhancing HMI capability via integrated LCD and EEPROM.

FAQ

What is the maximum operating frequency of the STM32L152V8H6A?

The STM32L152V8H6A operates at up to 32 MHz using its internal HSI (16 MHz ±1%) with PLL or external HSE (1–24 MHz). Dynamic voltage scaling allows full 32 MHz operation only above 2.4 V supply; below that, max frequency reduces to maintain stability - e.g., 16 MHz at 1.8 V. This is confirmed in Section 4.1 of the datasheet (DocID024330 Rev 5, p.16).

Does the STM32L152V8H6A support USB without an external crystal?

Yes. The device integrates a 48 MHz PLL fed by its internal 16 MHz HSI oscillator, enabling full-speed USB 2.0 operation without an external crystal. This is explicitly documented in Section 3.4 ("Clock management") and Table 34 ("PLL characteristics") of the datasheet, and verified on ST's official product page for STM32L152.

How many I/O pins are 5 V tolerant on the STM32L152V8H6A?

73 of the 83 general-purpose I/Os are 5 V tolerant, as stated in the "Features" section (p.1) and confirmed in Section 6.3.13 ("I/O port characteristics", Table 43) of the datasheet. Tolerance applies only when VDD is ≥ 2.0 V and pins are configured as inputs or open-drain outputs - not during push-pull output mode.

Is the LCD controller available on all STM32L152 variants?

Yes - unlike the STM32L151 series, all STM32L152x6/8/B-A devices (including STM32L152V8H6A) include the LCD controller supporting up to 8×40 segments. This is clearly differentiated in Table 1 ("Device summary") and Section 3.9 ("LCD") of the datasheet, and confirmed in ST's official ordering matrix.