STMicroelectronics STM32L152V8H6TR

Overview

STM32L152V8H6TR 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 (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, delivering 214 µA/MHz active current and 0.57 µA Stop mode power - ideal for battery-powered medical sensors and portable industrial data loggers.

For engineers reviewing the STM32L152V8H6TR datasheet, STM32L152V8H6TR pinout, STM32L152V8H6TR application, or STM32L152V8H6TR equivalent, key selection criteria include verified ultra-low-power operation down to 0.3 µA Standby, dual 12-bit DACs with output buffers, 12-bit 1 Msps ADC with 24 channels, and hardware-accelerated capacitive touch sensing supporting up to 20 channels.

Technical Context

The STM32L152V8H6TR implements dynamic voltage scaling and multiple low-power modes (Run, Sleep, Low-power Run, Stop, Standby) with sub-µA retention states and <8 µs wakeup latency. Its Cortex-M3 core runs at up to 32 MHz with MPU, supported by a multi-source clock system including HSE (1–24 MHz), LSE (32.768 kHz), HSI (16 MHz ±1%), LSI (37 kHz), and MSI (65 kHz–4.2 MHz).

Analog subsystem includes two independent 12-bit DACs with output buffers, a 12-bit 1 Msps ADC with 24 input channels and internal temperature sensor/VREFINT, two ultra-low-power comparators with window mode and wake-up capability, and an on-chip step-up converter for LCD bias - all functional down to 1.8 V supply.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), 100-pin quad flat leaded package with exposed thermal pad - compatible with standard reflow profiles and manual inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L152V8H6TR, the STM32L432KCU6 trades EEPROM and LCD integration for higher compute performance and deeper sleep, while the STM32L072RBT6 reduces feature set and power efficiency to meet entry-level ultra-low-power requirements - making the L152 optimal for mixed-signal, display-enabled, long-life applications.

Availability

STM32L152V8H6TR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, portable gas detectors, and industrial wireless sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32L152V8H6TR 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 analog products for industrial, automotive, and consumer markets.

The STM32L1 series targets ultra-low-power embedded applications demanding multi-year battery life, robust analog integration, and certified functional safety - with the L152 variant specifically optimized for LCD-equipped, sensor-rich portable devices.

FAQ

What is the maximum operating temperature range for STM32L152V8H6TR?

The STM32L152V8H6TR is rated for operation from -40°C to +105°C ambient temperature, validated per ST's production data (DocID17659 Rev 12). This extended grade supports deployment in automotive cabin modules, industrial motor controllers, and outdoor utility infrastructure without derating.

Does STM32L152V8H6TR support USB device functionality without external components?

Yes - it integrates a full-speed USB 2.0 transceiver with internal 1.5 kΩ pull-up resistor on USB_DP, enabling HID, CDC, or MSC class operation directly from the MCU. No external PHY, resistors, or level shifters are required for basic USB device implementation.

How is the 4 KB EEPROM implemented and what endurance does it offer?

The 4 KB EEPROM is implemented as true on-die memory with built-in ECC and wear leveling. ST specifies 100,000 write/erase cycles and 20-year data retention at 55°C, verified per datasheet Table 36 - making it suitable for storing calibration coefficients and usage logs in field-deployed equipment.

Can the LCD controller drive segment-based displays without external charge pumps?

Yes - the integrated step-up converter generates VLCD (adjustable 3.3–5.3 V) from the main VDD supply, eliminating need for external DC-DC boosters. The controller supports static, 1/2, 1/3, and 1/4 bias configurations for up to 8 commons and 40 segments, with software-controllable contrast and blinking.