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STMicroelectronics STM32L083VZI6 — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

STM32L083VZI6 ARM Cortex-M0+ MCU, 32 MHz, 192 KB Flash

MPNSTM32L083VZI6
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STMicroelectronics STM32L0 series STM32L083VZI6, ARM Cortex-M0+ 32-bit single-core MCU, 32MHz, 192KB Flash, 20K x 8 RAM, 3K x 8 EEPROM, 100-UFBGA (7x7), -40°C to 85°C, 1.8V to 3.6V supply.

$3.5392Ref. price · indicative, final on quote
STM32L083VZI6 datasheet
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Specifications

STM32L083VZI6 Technical Specifications
ParameterValue
SeriesSTM32L0
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTray
RAM size20K x 8
Core size32-Bit Single-Core
EEPROM size3K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART, USB
Number of i (O)84
Core processorARM® Cortex®-M0+
Case100-UFBGA
Data convertersA/D 16x12b; D/A 2x12b
Program memory size192KB (192K x 8)

Product details

What the STM32L083VZI6 brings to a low-power BOM

The STM32L083VZI6 is an STMicroelectronics ultra-low-power MCU built around an ARM Cortex-M0+ core running at up to 32 MHz. It packs 192 KB of Flash program memory, 20 KB of SRAM, and a separate 3 KB of embedded EEPROM — the latter saves an external serial EEPROM on many designs. The part targets battery-operated and energy-harvesting applications where every microamp matters: industrial sensors, metering, portable medical devices, and building-automation nodes.

Memory split and the firmware budget

With 192 KB of Flash and 20 KB of RAM, the firmware engineer has a comfortable but not unlimited footprint. The 3 KB EEPROM block is a genuine hardware EEPROM — not Flash emulated — rated for 100k write cycles per byte, which makes it suitable for calibration constants, configuration parameters, and data-logging counters that update frequently without wearing out a Flash sector. The 20 KB SRAM split between stack, heap, and DMA buffers needs careful sizing early in the project; the LCD frame buffer and USB packet buffers will draw from that same pool.

LCD drive without a separate controller

The peripheral set includes a direct LCD driver — listed alongside Brown-out Detect, DMA, I²S, POR, PWM, and WDT. This means the STM32L083VZI6 can drive a glass LCD segment display directly from the MCU pins, eliminating a dedicated LCD controller IC and its associated PCB area and cost. The trade-off is that the LCD pins are multiplexed with the GPIO bank, so the 84 available I/O count drops if the display uses many segments.

Package reality: 100-UFBGA 7x7 mm

The 100-UFBGA (Ultra Fine-pitch Ball Grid Array) package measures 7x7 mm. That is a small footprint for 100 I/O, but it is a BGA — requiring controlled reflow profiling, X-ray inspection, and careful PCB layout with microvias or via-in-pad if the design is dense. Moisture sensitivity level (MSL) should be verified from the reel label; typical for this package class is MSL 3, meaning a bake is needed if the floor-life window is exceeded. The part is surface-mount only.

Frequently asked questions

Does the STM32L083VZI6 have a built-in LCD controller?

Yes, the peripheral set includes LCD drive capability, listed alongside Brown-out Detect, DMA, I²S, POR, PWM, and WDT. The MCU can directly drive a glass LCD segment display without an external controller IC, though the LCD function shares pins with the GPIO bank.

What is the max operating frequency of the STM32L083VZI6?

The STM32L083VZI6 runs at a maximum core clock speed of 32 MHz. This is the ARM Cortex-M0+ clock rate; the peripheral bus and Flash access timing are configured accordingly in the clock tree.

Is the STM32L083VZI6 pin-compatible with the STM32L073?

The STM32L083VZI6 and STM32L073 share the same 100-UFBGA package footprint, but pin compatibility depends on the specific peripheral mix and GPIO assignments. Review the STM32L0 reference manual and the respective datasheets for the exact pin maps. The base product number STM32L083 indicates a different feature set from the STM32L073, so a pin-to-pin comparison is needed before assuming drop-in compatibility.