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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

STMicroelectronics STM32L083VZI6

Name: STM32L083VZI6
Brand: STMicroelectronics
SKU: STM32L083VZI6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32L083VZI6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 100-UFBGA

Datasheet:: STM32L083VZI6.pdf

Description:: IC MCU 32BIT 192KB FLSH 100UFBGA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STM32L083VZI6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 192 KB Flash, 20 KB SRAM, and 6 KB EEPROM with ECC; features integrated USB 2.0 (crystal-less), LCD controller (up to 4×52 segments), dual 12-bit DACs, 12-bit ADC (1.14 Msps, 16 channels), AES-128 hardware encryption, and operates from 1.65 V to 3.6 V across –40 °C to +125 °C - deployed in battery-powered industrial sensors and portable medical devices.

For engineers reviewing the STM32L083VZI6 datasheet, STM32L083VZI6 pinout, STM32L083VZI6 application, or STM32L083VZI6 equivalent, key selection criteria include standby current (0.29 µA), RTC-enabled Stop mode power (0.86 µA), USB crystal-less operation, LCD segment drive capability, and hardware AES acceleration for secure firmware updates.

Technical Context

The STM32L083VZI6 implements a dual-bank Flash architecture with read-while-write capability and ECC protection, enabling safe over-the-air firmware updates without halting execution. Its clock system integrates factory-trimmed 16 MHz HSI (+/–1%), self-calibrating 48 MHz HSI48 for USB, and 32 kHz LSE with RTC calibration - supporting dynamic voltage scaling and multiple low-power modes.

Peripheral interconnect uses a multi-layer AHB/APB matrix allowing concurrent DMA transfers to ADC, DAC, timers, and communication interfaces. The LCD controller includes on-chip step-up converter and contrast adjustment, while the TSC supports up to 24 capacitive sensing channels for touchkey and rotary control without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	Arm Cortex-M0+ @ up to 32 MHz; 0.95 DMIPS/MHz - enables real-time sensor fusion and protocol stack execution within tight power budgets.
Flash / EEPROM	192 KB Flash with ECC & RWW; 6 KB EEPROM with ECC - supports robust firmware storage and parameter retention across 100k write cycles.
RAM	20 KB SRAM with full retention in Stop mode + RTC - preserves context during extended sleep intervals in metering applications.
ADC	12-bit, 1.14 Msps, 16-channel; min supply 1.65 V - delivers high-resolution analog acquisition even at lowest operating voltage.
DAC	2 × 12-bit buffered DACs; operational down to 1.8 V - enables precision analog output generation for sensor biasing or calibration signals.
USB	Crystal-less USB 2.0 FS with battery charging detection - eliminates external crystal and reduces BOM cost in portable endpoints.
Low-power modes	0.29 µA Standby (3 wakeup pins); 0.86 µA Stop + RTC + 20 KB RAM retention - extends battery life to years in wireless sensor nodes.
Security	Hardware AES-128 engine + True RNG + firewall protection - accelerates encrypted communication and prevents unauthorized memory access.

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 84 fast I/Os (78 tolerant to 5 V), including dedicated LCD segment/common pins, USB D+/D−, and multiple wakeup-capable GPIOs.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VSS	Power supply / ground	Dual VDD/VSS pairs ensure stable core and I/O domain operation; supports separate analog supply filtering.
PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE7, PH0–PH1	General-purpose I/O	84 total I/Os; 78 tolerate 5 V - simplifies interface to legacy peripherals and level-shifting circuits.
PC13–PC15	RTC oscillator inputs	Support 32.768 kHz crystal connection with built-in load capacitance - enables precise timekeeping without external caps.
PA11/PA12	USB D+/D−	Crystal-less USB interface with internal transceiver and battery charging detection logic - no external PHY required.
VLCD	LCD voltage supply	On-chip step-up converter generates regulated VLCD from VDD - eliminates external boost IC for segment LCDs.
NRST	Active-low reset	Programmable reset threshold with hysteresis - ensures reliable startup under brownout conditions.

Key Features

Feature	Design Value
Ultra-low-power operation	0.29 µA Standby, 0.86 µA Stop+RTC+RAM - enables >10-year battery life in smart utility meters.
Integrated LCD driver	Up to 4×52 or 8×48 segments with contrast control and blinking - drives alphanumeric displays without external drivers.
Capacitive touch sensing	24-channel TSC with hardware-accelerated acquisition - supports touchkey, slider, and rotary encoder UIs with <5 µA active current.
Hardware crypto acceleration	AES-128 + True RNG - reduces firmware update latency by >90% vs software-only encryption in BLE-connected devices.
Flexible clock system	HSI48 auto-calibrated for USB; MSI range 65 kHz–4.2 MHz - eliminates external crystals for most timing functions.
Robust memory integrity	ECC on Flash and EEPROM - detects and corrects single-bit errors, preventing field failures due to radiation or wear.

Applications

Smart Utility Meter

Portable Medical Monitor

Use Scenario: Battery-powered electricity/water/gas meter with LCD display, tamper detection, and secure data logging.

IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, LCD refresh, RTC-based billing intervals, and AES-encrypted data transmission.

Use Value: 0.86 µA Stop+RTC mode extends 10-year battery life; hardware AES enables FIPS-compliant firmware updates over LPWAN.

Use Scenario: Handheld ECG or SpO₂ monitor requiring low-noise analog front-end, real-time waveform display, and Bluetooth LE connectivity.

IC Role / Device Role / Timing Role: Signal acquisition controller interfacing with 12-bit ADC, driving LCD via integrated step-up converter, and managing USB charging detection.

Use Value: Dual 12-bit DACs generate precise reference voltages for analog front-end calibration; 1.14 Msps ADC captures high-fidelity biosignals at minimal power.

Industrial Wireless Sensor Node

Asset Tracking Beacon

Use Scenario: Temperature/humidity/pressure node in predictive maintenance systems, transmitting data via LoRaWAN or NB-IoT.

IC Role / Device Role / Timing Role: Sensor hub aggregating data from multiple analog/digital sensors, performing local preprocessing, and managing secure OTA updates.

Use Value: 24-channel TSC enables on-board button/slider UI; 6 KB EEPROM stores calibration coefficients and device identity with ECC protection.

Use Scenario: GPS-denied indoor asset tracker using BLE proximity and accelerometer-based motion detection.

IC Role / Device Role / Timing Role: Low-power state manager triggering wake-on-motion, capturing orientation data, and broadcasting encrypted BLE beacons.

Use Value: 5 µs wakeup from Flash allows rapid response to movement events; 20-byte backup registers retain last known position during deep sleep.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32L073RZT6	192 KB Flash, 20 KB RAM, but only 1 KB EEPROM; no USB; 64-pin LQFP	Lacks crystal-less USB and LCD driver - suitable for non-display, wired-sensor applications only	Select when USB/LCD are unnecessary and PCB space constraints favor smaller package.
STM32L433RCT6	Cortex-M4F core, 256 KB Flash, 64 KB RAM, no EEPROM; higher performance but 1.1 µA Stop mode	Higher compute throughput for DSP tasks, but lacks hardware AES and dedicated LCD peripheral	Choose for sensor fusion algorithms requiring floating-point math, accepting higher power and missing LCD integration.

Compared with STM32L073RZT6, the STM32L083VZI6 adds USB and LCD support at identical Flash/RAM size; versus STM32L433RCT6, it trades CPU performance for lower power, integrated peripherals, and EEPROM - making it optimal for display-equipped, battery-critical edge nodes.

Availability

STM32L083VZI6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial wireless sensor nodes, and asset tracking beacons requiring stable component supply across long product lifecycles.

Supply support for STM32L083VZI6 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.

The STM32L0 series targets ultra-low-power embedded applications demanding multi-year battery life, integrated analog peripherals, and secure firmware execution - optimized for IoT edge nodes and portable instrumentation.

FAQ

What is the maximum operating frequency and core type of the STM32L083VZI6?

The STM32L083VZI6 features an Arm Cortex-M0+ core rated for up to 32 MHz operation, delivering 0.95 DMIPS per MHz. It supports dynamic voltage scaling to maintain performance across its 1.65 V–3.6 V supply range, with factory-trimmed 16 MHz HSI and self-calibrating 48 MHz HSI48 for USB timing.

Does the STM32L083VZI6 support crystal-less USB operation?

Yes - the STM32L083VZI6 integrates a crystal-less USB 2.0 Full-Speed transceiver with automatic trimming of the internal 48 MHz HSI48 oscillator, eliminating the need for an external USB crystal. It also includes battery charging detection circuitry compliant with USB BC 1.2.

How does the LCD controller function without external components?

The integrated LCD controller supports up to 4×52 or 8×48 segments and includes an on-chip step-up converter generating VLCD from VDD, plus programmable contrast adjustment and blinking control - enabling direct drive of segment LCDs without external boost ICs or resistive dividers.

What security features are implemented in hardware on this MCU?

The STM32L083VZI6 includes hardware AES-128 encryption/decryption, a True Random Number Generator (TRNG), memory firewall protection, and ECC on both Flash and EEPROM. These features enable secure boot, encrypted firmware updates, and tamper-resistant data storage without software overhead.

STM32L083VZI6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 100-UFBGA

Series:: STM32L0

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M0+

Core Size:: 32-Bit Single-Core

Speed:: 32MHz

Connectivity:: I2C, IrDA, LINbus, SPI, UART/USART, USB

Peripherals:: Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT

Number of I/O:: 84

Program Memory Size:: 192KB (192K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 3K x 8

RAM Size:: 20K x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 3.6V

Data Converters:: A/D 16x12b; D/A 2x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32L083VZI6 FAQ

1.How can I place an order for STM32L083VZI6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32L083VZI6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32L083VZI6 reliable?

The price and inventory of STM32L083VZI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L083VZI6 is usually 5 days.

3.What payment methods are accepted for STM32L083VZI6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L083VZI6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32L083VZI6?

STM32L083VZI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32L083VZI6 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32L083VZI6?

For technical support, including STM32L083VZI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L083VZI6 requirements.

6.How does Aetrix verify that STM32L083VZI6 is sourced from the original manufacturer or authorized distributors?

All STM32L083VZI6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32L083VZI6 meets industry standards.

7.What is the process for return or replacement of STM32L083VZI6?

All STM32L083VZI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L083VZI6, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32L083VZI6 part is unused and in its original packaging.

Return procedure for STM32L083VZI6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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