STMicroelectronics STM32L072V8I6

Overview

STM32L072V8I6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller in LQFP64 package, featuring 192 KB Flash with ECC, 20 KB SRAM, 6 KB EEPROM, USB 2.0 (crystal-less), dual 12-bit DACs, and 12-bit ADC (1.14 Msps, 16 channels). It operates from 1.65–3.6 V across –40 to +125 °C and targets battery-powered IoT sensor nodes requiring long runtime and analog signal conditioning.

For engineers reviewing the STM32L072V8I6 datasheet, STM32L072V8I6 pinout, STM32L072V8I6 application, or STM32L072V8I6 equivalent, key selection criteria include ultra-low-power Stop mode current (0.43 µA), 5 µs Flash wakeup time, USB crystal-less operation, dual DAC output buffer support down to 1.8 V, and 78 I/Os with 5V tolerance - critical for mixed-voltage industrial sensing and portable medical devices.

Technical Context

The STM32L072V8I6 integrates a Cortex-M0+ core with MPU, supporting dynamic voltage scaling and multiple low-power modes including Stop (0.43 µA) and Standby (0.29 µA) with RTC + 20 KB RAM retention. Its clock system combines HSI16 (±1%), HSI48 (self-calibrated for USB), LSE (32 kHz RTC), and PLL for flexible CPU frequency up to 32 MHz.

Analog subsystem includes two independent 12-bit DACs with output buffers (operable down to 1.8 V), a 12-bit ADC with 16-channel multiplexing and 1.14 Msps sampling (down to 1.65 V), and two ultra-low-power comparators with window mode and wake-up capability - enabling simultaneous precision measurement and low-energy event triggering.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L072V8I6, STM32L073V8I6 adds CAN FD and Flash headroom at identical power and pin compatibility, while STM32L053R8T6 trades USB, DACs, and memory for reduced cost and footprint - making the V8I6 optimal for USB-connected, dual-DAC, battery-critical applications.

Availability

STM32L072V8I6 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 and long-term manufacturability.

Supply support for STM32L072V8I6 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32L0 series targets ultra-low-power embedded applications demanding extended battery life, robust analog integration, and secure firmware execution - optimized for IoT edge nodes and portable medical devices.

FAQ

What is the maximum operating temperature range for STM32L072V8I6?

The STM32L072V8I6 is rated for operation from –40 °C to +125 °C, validated per JEDEC JESD47 and qualified for industrial and extended-temperature applications. This range covers harsh environments such as enclosed utility meters and under-hood automotive auxiliary systems, with full specification compliance across the entire span including Flash write/erase endurance and ADC linearity.

Does STM32L072V8I6 support USB without an external crystal?

Yes - it integrates a factory-trimmed 48 MHz HSI48 oscillator with automatic self-calibration against USB Start-of-Frame (SOF) tokens, enabling full-speed USB 2.0 communication without any external crystal or oscillator. This feature reduces bill-of-materials cost and PCB layout complexity while maintaining ±0.25% frequency accuracy required for USB compliance.

How many I/O pins are 5V tolerant on STM32L072V8I6?

78 of the 84 fast I/Os on the STM32L072V8I6 are 5V tolerant, as confirmed in Section 3.7 of DS10689 Rev 5. These pins tolerate up to 5.5 V regardless of VDD level (1.65–3.6 V), allowing direct interface with 5 V sensors, logic families, and industrial buses without external level-shifting circuitry.

Can the internal EEPROM be used for secure key storage?

The 6 KB data EEPROM includes ECC protection and supports byte-level erase/write, but lacks hardware encryption engines or tamper detection. For secure key storage, ST recommends pairing it with the integrated True RNG and firewall protection unit to seed software-based AES libraries - however, dedicated secure elements (e.g., STSAFE-A) are advised for FIPS 140-2 Level 2 or Common Criteria EAL5+ requirements.