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STMicroelectronics STM32L071VBT6TR — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

STMicroelectronics STM32L071VBT6TR ARM Cortex-M0+ MCU

MPNSTM32L071VBT6TR
Active

STMicroelectronics STM32L0 series STM32L071VBT6TR, ARM Cortex-M0+, 32-Bit Single-Core, 32MHz, 128KB Flash, 20K x 8 RAM, 6K x 8 EEPROM, 100-LQFP, -40°C to 85°C.

$3.0766Ref. price · indicative, final on quote
STM32L071VBT6TR datasheet
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Specifications

STM32L071VBT6TR Technical Specifications
ParameterValue
SeriesSTM32L0
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTape & Reel (TR)
RAM size20K x 8
Core size32-Bit Single-Core
EEPROM size6K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)84
Core processorARM® Cortex®-M0+
Case100-LQFP
Data convertersA/D 16x12b
Program memory size128KB (128K x 8)

Product details

I/O, connectivity, and data conversion

84 general-purpose I/Os are brought out on the 100-pin LQFP package (14x14 mm body), giving enough headroom for a parallel LCD data bus or a bank of sensor interrupts alongside the usual SPI/I²C/UART peripherals. The connectivity set includes I²C, IrDA, SPI, and UART/USART interfaces. On the analog side there is a 16-channel 12-bit ADC — enough to sample a three-phase current plus a few thermistors without an external multiplexer.

Peripheral budget for LPWAN and sensor nodes

The STM32L0 family is a common host for LoRaWAN end-devices, wireless MBus, and battery-powered sensor tags. With 20 KB of RAM there is enough headroom for a lightweight RTOS plus a radio stack buffer, and the 6 KB EEPROM can hold pairing keys or calibration tables across power cycles. The internal oscillator trims the BOM by one external crystal for the core clock, though an external low-speed crystal is still typical for RTC accuracy in time-slotted networks.

Frequently asked questions

Is STM32L071VBT6TR active or obsolete?

The manufacturer lists the product status as Active.

Does STM32L071VBT6TR have USB support?

No — the connectivity block includes I²C, IrDA, SPI, and UART/USART but does not include a USB peripheral. For USB 2.0 FS support look at the STM32L073 or STM32L072 variants in the same LQFP-100 footprint.

What is the flash size of STM32L071VBT6TR?

128 KB of program Flash memory, organised as 128K x 8.

What is the closest pin-compatible alternative to STM32L071VBT6TR?

Within the STM32L0 series, the STM32L073VBT6 is a direct pin-compatible upgrade that adds a USB 2.0 FS peripheral and a second 12-bit DAC channel while keeping the same 100-LQFP footprint, 128 KB Flash, and 32 MHz core speed. The STM32L071VBT6TR itself is the baseline EEPROM-equipped variant without USB.