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STMicroelectronics STM32L073VBT6 — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

ST STM32L073VBT6 ARM Cortex-M0+ MCU, 32MHz, 128KB Flash, 100-LQFP

MPNSTM32L073VBT6
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ST STM32L0 series, 32-bit ARM Cortex-M0+ MCU, STM32L073VBT6, 32MHz, 128KB Flash, 20K x 8 RAM, 6K x 8 EEPROM, 84 I/O, 100-LQFP (14x14), -40 to 85 °C, 1.8V to 3.6V.

$6.6600Ref. price · indicative, final on quote
STM32L073VBT6 datasheet
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Specifications

STM32L073VBT6 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 size6K 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-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size128KB (128K x 8)

Product details

What this STM32L073VBT6 brings to the board

The STM32L073VBT6 is a 32-bit ARM Cortex-M0+ MCU from ST's STM32L0 ultra-low-power series, clocked at 32 MHz with 128 KB Flash, 20 KB RAM, and 6 KB on-chip EEPROM. It packs 84 I/O lines, a 16-channel 12-bit ADC, dual 12-bit DAC, LCD driver, and USB connectivity into a 100-LQFP package. Typical applications include industrial sensor nodes, metering, medical handhelds, and IoT edge devices where battery life or energy harvesting dictates the design.

128 KB Flash and 6 KB EEPROM — firmware and calibration data fit

The 128 KB Flash handles moderate firmware stacks — enough for a Modbus RTU slave with a sensor fusion library and a USB CDC virtual COM port. The separate 6 KB EEPROM saves calibration constants and production data without wearing the Flash; no external serial EEPROM needed for most designs.

EOL hot — plan your last-time buy now

This part is flagged EOL hot. Buyers should secure lifetime-forecast quantities on this order now. No official pin-compatible successor is listed; a migration to a newer STM32L0 variant will require a firmware port and possibly a PCB spin.

100-LQFP rework — will it survive the hot air?

The 100-LQFP (14x14 mm) has perimeter leads only; no exposed pad. Use a fine-tip iron for touch-up.

Frequently asked questions

What is STM32L073VBT6's listed speed?

The core runs at 32 MHz, which is sufficient for sensor polling, communication protocol handling, and simple control loops without exceeding the ultra-low-power budget.