STMicroelectronics STM32L152V8H6

Overview

STM32L152V8H6 from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller featuring 128 KB Flash, 16 KB SRAM, 4 KB EEPROM with ECC, integrated LCD controller (8×40 segments), and USB 2.0 interface. It operates from 1.65 V to 3.6 V across -40°C to +85°C, delivers 214 µA/MHz in Run mode, and supports 0.57 µA Stop mode - enabling battery-powered IoT sensors and portable medical devices requiring long-term autonomous operation.

For engineers reviewing the STM32L152V8H6 datasheet, STM32L152V8H6 pinout, STM32L152V8H6 application, or STM32L152V8H6 equivalent, key selection criteria include ultra-low-power mode current (e.g., 0.9 µA Standby+RTC), integrated LCD driver capability, USB 2.0 PHY with internal 48 MHz PLL, 12-bit dual-channel DAC with buffers, and 24-channel 1 Msps ADC - all validated for energy-constrained embedded designs.

Technical Context

The STM32L152V8H6 implements dynamic voltage scaling and multiple low-power modes (Run, Sleep, Low-power Run, Stop, Standby) with sub-µA retention states and <8 µs wake-up latency. Its Cortex-M3 core runs up to 32 MHz with MPU, 1.25 DMIPS/MHz performance, and executes code directly from Flash or RAM.

On-chip clock system includes HSE (1–24 MHz), LSE (32.768 kHz RTC), HSI (16 MHz ±1%), LSI (37 kHz), MSI (65 kHz–4.2 MHz), and a USB-capable PLL generating 48 MHz. Analog subsystem integrates two ultra-low-power comparators with window mode and wake-up capability, plus temperature sensor and VREFINT.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 83 fast I/Os (73 tolerant to 5 V), all mappable to 16 external interrupt vectors. Includes dedicated pins for USB D+/D−, LCD segment/common drivers, VBAT, VREF+, VREF−, and multiple power/ground domains (VDD, VDDA, VSS, VSSA).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L152V8H6, STM32L432KC offers higher compute throughput and lower deep-sleep current but lacks LCD and EEPROM; EFM32PG12B500F1024GL125 provides larger memory and better RF coexistence but requires external display and communication interfaces - making STM32L152V8H6 optimal for integrated display + USB + ultra-low-power metering.

Availability

STM32L152V8H6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial sensor nodes, and wearable health trackers requiring stable component supply across multi-year production cycles.

Supply support for STM32L152V8H6 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.

The STM32L1 series targets ultra-low-power embedded applications demanding multi-year battery life, integrated peripherals, and robust operation across industrial and consumer temperature ranges - with emphasis on energy efficiency without sacrificing feature integration.

FAQ

What is the maximum operating frequency and core architecture of the STM32L152V8H6?

The STM32L152V8H6 features an ARM Cortex-M3 32-bit RISC core with a maximum CPU frequency of 32 MHz, delivering 1.25 DMIPS/MHz (Dhrystone 2.1). It includes a Memory Protection Unit (MPU) for secure memory partitioning and supports Thumb-2 instruction set for code density and performance efficiency in resource-constrained applications.

Does the STM32L152V8H6 support USB functionality without external components?

Yes - the STM32L152V8H6 integrates a full-speed USB 2.0 device interface with an internal 48 MHz PLL, eliminating the need for an external USB crystal oscillator. It supports standard USB device classes (CDC, HID, MSC) and uses dedicated USB_DP/USB_DM pins with internal termination resistors and transceivers compliant with USB specification Rev 2.0.

How does the LCD controller in the STM32L152V8H6 differ from basic segment drivers?

The integrated LCD controller supports up to 8 commons and 40 segments (8×40), includes on-chip step-up converter for bias voltage generation, programmable contrast adjustment, blinking mode, and software-controlled charge pump - enabling direct connection to passive segment LCDs without external voltage boosters or bias ICs, reducing BOM and PCB area.

What low-power modes are available and what are their typical current draws?

The STM32L152V8H6 offers five low-power modes: Low-power Run (9 µA), Sleep (14 µA), Stop (0.57 µA), Standby (0.3 µA), and Standby+RTC (0.9 µA). All retain SRAM and register content except Standby mode; Stop mode preserves 16 wakeup lines and RTC operation; Standby mode retains only backup registers and RTC with 3 dedicated wakeup pins.