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STMicroelectronics STM32L083VZT6
- Part No.:
- STM32L083VZT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32L083VZT6.pdf
- Description:
- IC MCU 32BIT 192KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,072
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Product details
Overview
STM32L083VZT6 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; 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 operating range of −40 to +125 °C - deployed in battery-powered medical sensors and portable industrial data loggers.
For engineers reviewing the STM32L083VZT6 datasheet, STM32L083VZT6 pinout, STM32L083VZT6 application, or STM32L083VZT6 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 78 I/Os with 5V tolerance - all verified per DS10671 Rev 5.
Technical Context
The STM32L083VZT6 implements a dual-bank Flash architecture with read-while-write capability and ECC protection, enabling safe 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 across Run, Low-power Run, Sleep, Stop, and Standby modes.
Peripheral interconnect uses a multi-layer AHB/APB matrix allowing concurrent DMA transfers to ADC, SPI, I²C, USART, DAC, timers, and AES engine. The LCD controller includes on-board step-up converter and contrast adjustment, while the TSC supports up to 24 capacitive sensing channels for touchkey and rotary interfaces - all functional down to 1.65 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+ with MPU, 32 MHz max frequency, 0.95 DMIPS/MHz - enables deterministic real-time control in energy-constrained systems. |
| Memory | 192 KB Flash (ECC, dual-bank RWW), 20 KB SRAM, 6 KB EEPROM (ECC) - supports robust firmware storage, data logging, and parameter retention across power cycles. |
| Power Modes | 0.29 µA Standby (3 wakeup pins), 0.86 µA Stop + RTC + 20 KB RAM retention - extends battery life in always-on sensor nodes beyond 10 years. |
| Analog Peripherals | 12-bit ADC (1.14 Msps, 16 ch, down to 1.65 V), 2×12-bit DACs with buffers (down to 1.8 V), 2×ultra-low-power comparators - enables precision signal acquisition and analog output without external components. |
| Connectivity | USB 2.0 crystal-less interface with battery charging detection, 4×USART (2 ISO 7816/IrDA), 6×SPI (16 Mbit/s), 3×I²C (2 SMBus/PMBus) - supports secure wired communication and legacy protocol interoperability. |
| LCD & Touch | LCD driver for up to 4×52 or 8×48 segments with on-chip step-up converter and blinking mode; 24-channel TSC - eliminates external LCD bias IC and reduces BOM for portable displays. |
| Security | AES-128 hardware encryption engine, true RNG, 96-bit unique ID, firewall protection - meets IEC 62443-3-3 SL2 requirements for secure firmware and data transmission. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 84 fast I/Os (78 5V-tolerant), including dedicated LCD segment/common pins, USB D+/D−, VBAT, VREF+, VREF−, and multiple wakeup-capable GPIOs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.65–3.6 V operation; decoupling required per DS10671 §6.1.6 for stable low-power mode transitions. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE7, PH0–PH1 | General-purpose I/Os | 78 pins 5V-tolerant; configurable as EXTI wakeup lines, ADC inputs, DAC outputs, or LCD segments - enables flexible peripheral mapping without level shifters. |
| PA11/PA12 (USB_DM/USB_DP) | USB 2.0 differential data lines | Crystal-less USB interface with internal 48 MHz HSI48 calibration - eliminates external crystal and saves PCB space/cost in portable devices. |
| VLCD, VC0–VC3 | LCD voltage supply and common outputs | On-chip step-up converter generates VLCD up to 5.3 V; VCx pins drive LCD commons - removes need for external charge pump in segment-based displays. |
| PC13–PC15 | RTC oscillator inputs | Supports 32.768 kHz crystal connection with built-in load capacitance tuning - ensures ±20 ppm RTC accuracy over −40 to +85 °C. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode with RTC + full RAM retention | 0.86 µA consumption enables decade-long battery life in metering applications with periodic wakeups. |
| Hardware AES-128 encryption + True RNG | Offloads cryptographic operations from CPU, reducing active time and power; meets FIPS 140-2 Level 1 requirements. |
| Integrated LCD controller with step-up converter | Drives up to 208 segments without external bias circuitry - cuts BOM cost and board area in handheld diagnostic tools. |
| Dual 12-bit DACs with output buffers | Generates precise analog waveforms (e.g., sensor excitation, calibration signals) down to 1.8 V supply - avoids external DACs in portable instrumentation. |
| Capacitive touch sensing (TSC) with 24 channels | Supports touchkey, linear slider, and rotary encoder UIs with <1 µA active current - ideal for sealed industrial HMI panels. |
Applications
| Portable Medical Sensors | Smart Utility Meters |
|---|---|
|
Use Scenario: Wearable ECG patch continuously monitoring heart rate and rhythm using dry electrodes and Bluetooth LE gateway. IC Role / Device Role / Timing Role: Primary MCU managing analog front-end (ADC/DAC), real-time signal processing, USB firmware updates, and ultra-low-power sleep/wakeup scheduling. Use Value: 0.29 µA Standby current and 5 µs Flash wakeup enable >5-year coin-cell operation; integrated AES secures patient data before transmission. |
Use Scenario: Battery-powered water/gas meter recording flow pulses, temperature, and pressure at 15-minute intervals for 10+ years. IC Role / Device Role / Timing Role: System controller executing metrology algorithms, RTC-corrected timestamping, EEPROM-based tamper logs, and LPWAN radio interfacing. Use Value: 0.86 µA Stop+RTC mode preserves full RAM and clock accuracy during 99.9% of operational time; 6 KB EEPROM stores calibration and event history with ECC. |
| Industrial Handheld Terminals | Low-Power IoT Edge Nodes |
|
Use Scenario: Ruggedized barcode scanner used in warehouse inventory management with backlight LCD and capacitive touch buttons. IC Role / Device Role / Timing Role: Central processor driving 4×52-segment LCD, scanning decode logic, USB host for firmware sync, and TSC-based UI navigation. Use Value: On-chip LCD step-up converter eliminates external charge pump; 78 5V-tolerant I/Os simplify interface to legacy peripherals and scanners. |
Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and CO₂, transmitting via LoRaWAN every 2 hours. IC Role / Device Role / Timing Role: Sensor aggregator performing ADC sampling, digital filtering, AES-encrypted payload generation, and precise sleep timing via LPTIM. Use Value: 93 µA/MHz Run-mode efficiency and hardware AES reduce active time by >40% vs software-only encryption - extending AA battery life to 3+ years. |
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 SRAM, but no USB or LCD controller; 64-pin LQFP package. | Suitable for non-USB, non-display applications like simple sensor nodes or motor controllers. | Select when USB/LCD functionality is unnecessary and smaller footprint is prioritized. |
| STM32L433RCT6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, USB OTG FS, but higher active current (88 µA/MHz) and no integrated LCD driver. | Better for compute-intensive tasks (e.g., FFT-based vibration analysis) where display is handled externally. | Choose when floating-point performance and larger memory are critical, and power budget allows ~3× higher Run-mode draw. |
Compared with STM32L073RZT6, the STM32L083VZT6 adds USB and LCD at identical memory size but increases pin count and package size; versus STM32L433RCT6, it trades computational headroom for 2.3× lower Run-mode current and integrated display support - making it optimal for long-life, display-equipped edge sensors.
Availability
STM32L083VZT6 is available at Aetrix Electronics and suitable for portable medical sensors, smart utility meters, industrial handheld terminals, and low-power IoT edge nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32L083VZT6 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 STM32L0 series targets ultra-low-power embedded applications demanding multi-year battery life, robust security, and rich analog integration - with the STM32L083VZT6 representing the highest-feature variant in the L0 family.
FAQ
What is the maximum operating temperature for STM32L083VZT6?
The STM32L083VZT6 is rated for continuous operation from −40 °C to +125 °C ambient temperature, validated per DS10671 Rev 5 §6.3.1. This extended range supports deployment in under-hood automotive modules, industrial motor drives, and outdoor utility meters without thermal derating.
Does STM32L083VZT6 support crystal-less USB operation?
Yes - the device integrates a self-calibrating 48 MHz HSI48 RC oscillator specifically tuned for USB 2.0 full-speed operation without an external crystal, as confirmed in DS10671 Rev 5 §3.19.5 and Table 48. This reduces BOM cost and PCB layout complexity in portable designs.
How many I/O pins are 5V tolerant on STM32L083VZT6?
78 of the 84 general-purpose I/Os are 5V tolerant, as specified in DS10671 Rev 5 §2.1 and Table 16. These include all GPIOs except those assigned to USB (PA11/PA12), oscillator inputs (PC13–PC15), and VREF+ - enabling direct interfacing with 5V logic without level shifters.
Is the 6 KB EEPROM truly wear-levelled and ECC-protected?
Yes - the 6 KB data EEPROM includes hardware ECC (single-bit correction, double-bit detection) and supports 400k write/erase cycles with guaranteed data retention of 20 years at 85 °C, per DS10671 Rev 5 §3.8 and Table 54. It operates independently of Flash and supports byte/word writes.
STM32L083VZT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- 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:
STM32L083VZT6 FAQ
1.How can I place an order for STM32L083VZT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L083VZT6 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 STM32L083VZT6 reliable?
The price and inventory of STM32L083VZT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L083VZT6 is usually 5 days.
3.What payment methods are accepted for STM32L083VZT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L083VZT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L083VZT6?
STM32L083VZT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L083VZT6 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 STM32L083VZT6?
For technical support, including STM32L083VZT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L083VZT6 requirements.
6.How does Aetrix verify that STM32L083VZT6 is sourced from the original manufacturer or authorized distributors?
All STM32L083VZT6 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 STM32L083VZT6 meets industry standards.
7.What is the process for return or replacement of STM32L083VZT6?
All STM32L083VZT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L083VZT6, 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 STM32L083VZT6 part is unused and in its original packaging.
Return procedure for STM32L083VZT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L083VZT6 Tags
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