STM32L072VBT6 - 32MHz Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L072VBT6 ✓ ActiveSTM32L072VBT6 Overview
An ultra-low-power microcontroller is an embedded controller optimized to minimize energy use during active processing, sleep, and standby operation. The STM32L0 family combines an ARM Cortex-M0+ processor, embedded Flash and SRAM, GPIO, timers, communication peripherals, and low-power management within one device. This integration allows a product to replace separate processor, memory, interface, and supervisory components while simplifying firmware and PCB design.
The STM32L072VBT6 provides a 32 MHz ARM Cortex-M0+ core and 128 KB of Flash for program storage. Its integrated USB 2.0 controller supports connected peripheral, host, and USB Type-C interface designs. The 100-pin LQFP package provides a high pin count for exposed GPIO and peripheral assignments while retaining a leaded surface-mount form factor that can simplify inspection and assembly. A wide 1.65 V to 3.6 V operating range supports low-voltage embedded systems.
The STM32L072VB family combines USB connectivity with ultra-low-power operation for cost-sensitive embedded platforms. Because the MCU integrates USB and multiple peripherals, board designers can reduce external component count and preserve PCB area around connectors, sensors, and communications modules. The 32 MHz Cortex-M0+ architecture provides ample performance for sensor nodes, data acquisition, human-interface equipment, and low-power control systems while maintaining a straightforward embedded software model.
Typical uses include USB-connected sensors, compact industrial controllers, wearable accessories, medical monitoring equipment, instrument interfaces, and low-power IoT nodes. The STM32L072VBT6 is particularly suitable when a design needs both a large GPIO footprint and USB without moving to a more complex microcontroller package. Its 128 KB Flash capacity also gives firmware developers room for USB stacks, application logic, diagnostics, and field-upgrade logic.
Design around the manufacturer's recommended decoupling, clock, reset, and USB implementation guidance. Place the device's input capacitors close to its supply pins, confirm that the selected USB transceiver or connector meets the required electrical characteristics, and validate low-power mode transitions under the intended peripheral load. PCB signal integrity and USB routing should be checked with the complete stack rather than inferred from the MCU pinout alone.
This product page combines manufacturer specifications, verified distributor listings, package information, application guidance, and a parameter-focused comparison with closely related STMicroelectronics devices. It is intended to help engineers identify the correct memory configuration, package, connectivity requirements, and MCU-family alternative before committing a design to production.
Drop-in alternatives for STM32L072VBT6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
STM32L073VBT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32L071VBT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32L081VBT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32L082VBT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32L072VBT6 Maximum Ratings & Electrical Characteristics
| Product Type | Ultra-low-power 32-bit microcontroller |
| CPU Core | ARM Cortex-M0+ |
| Maximum CPU Frequency | 32 MHz |
| Architecture | 32-bit ARM |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 bits |
| Operating Voltage Range | 1.65 V to 3.6 V |
| USB Version | USB 2.0 |
| USB Clock Feature | Crystal-less |
| Package | 100-pin LQFP (14 x 14 mm) |
| Mounting Type | Surface mount |
| Supply Packaging | Tray |
STM32L072VBT6 100-pin lqfp (14 x 14 mm) Pin Configuration Guide
Pin configuration for STM32L072VBT6 (100-pin lqfp (14 x 14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32L072VBT6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32L072VBT6 is suitable for 6 applications: USB-Connected Sensor Nodes, Portable Medical Monitoring, Industrial Data Acquisition, USB Human-Interface Accessories, Low-Power IoT Gateways, Compact Test and Measurement Instruments.
USB-Connected Sensor Nodes
The STM32L072VBT6 fits USB-connected sensor nodes because it combines a 32 MHz ARM Cortex-M0+ processor, 128 KB of Flash, and USB 2.0 connectivity in one 100-pin LQFP package. A typical design can use the MCU to acquire readings from analog or digital sensors, format the data, and present it as a USB device without adding a separate interface controller. The 1.65 V to 3.6 V operating range is suitable for low-voltage systems, while the large pin count provides flexible GPIO assignments for sensor enables, interrupts, status indicators, and communications. The principal trade-off is that USB operation can increase power consumption, so standby behavior and sensor duty cycles must be evaluated together.
Recommended
Portable Medical Monitoring
The STM32L072VBT6 is suitable for portable medical-monitoring equipment that combines low-power sensing with USB synchronization or configuration. Its 32 MHz Cortex-M0+ core can process sensor samples and handle control logic, while 128 KB of Flash provides room for firmware, calibration routines, and communication protocols. The 100-pin LQFP package offers numerous GPIO options for sensor inputs, buttons, displays, and status feedback. Because medical designs require careful validation, engineers should review the applicable safety, EMC, and environmental requirements for the finished equipment and confirm the device's operating limits against the intended use.
Recommended
Industrial Data Acquisition
The STM32L072VBT6 supports compact industrial data-acquisition systems where multiple inputs, local control, and USB export are needed in one controller. Its 100-pin LQFP package can expose GPIO for digital sensors, relays, counters, and status lines, while the 128 KB of Flash accommodates acquisition firmware and buffering logic. The 32 MHz Cortex-M0+ core is suitable for sampling control and protocol handling at low or moderate data rates. Industrial implementation should include appropriate input protection, isolation where required, regulated supplies, and verified EMC controls rather than relying on the microcontroller package for external surge protection.
Recommended
USB Human-Interface Accessories
The STM32L072VBT6 is a practical choice for USB human-interface accessories because it combines USB 2.0, a 32 MHz core, and programmable GPIO in a single 100-pin LQFP device. Firmware can enumerate as a keyboard, mouse, game controller, configuration interface, or vendor-specific USB peripheral and debounce controls or decode sensor inputs. The 128 KB of Flash is sufficient for USB descriptors, class firmware, configuration storage, and application logic. Designers should confirm the required USB device or host role, current budget, connector data toggling, shielding, and enumeration behavior in the complete product design.
Recommended
Low-Power IoT Gateways
The STM32L072VBT6 can serve as the local control processor in a low-power IoT gateway when the gateway requires USB commissioning plus low-power local operation. Its 1.65 V to 3.6 V supply range, ultra-low-power MCU architecture, and 128 KB of Flash are well suited to devices that wake periodically, collect sensor information, and exchange configuration through USB. The 100-pin package also provides enough I/O for radio-enable control, status LEDs, tamper inputs, and external memory. Actual battery life should be calculated from wake duration, radio activity, USB connection time, regulator quiescent current, and the selected STM32L0 low-power mode.
Recommended
Compact Test and Measurement Instruments
The STM32L072VBT6 is well matched to compact test and measurement instruments that need a user interface, data capture, USB connectivity, and multiple control signals. Its 32 MHz Cortex-M0+ core can handle instrument commands and data formatting, while 128 KB of Flash accommodates firmware, lookup tables, calibration data, and USB protocols. The 100-pin LQFP footprint provides GPIO for buttons, displays, relays, reference controls, and status indicators. Precision analog measurement paths still require suitable front-end amplifiers, ADCs, references, and protection; the MCU should perform control and data management rather than be treated as the measurement front end.
Recommended
Recommended Products Summary
Engineering reference data for STM32L072VBT6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32L073VBT6 | STM32L071VBT6 | STM32L081VBT6 | STM32L082VBT6 |
|---|---|---|---|---|---|
| Package | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Family Feature Set | STM32L0x2 | STM32L0x3 | STM32L0x1 | STM32L0x8 | STM32L0x8 |
| Pin Count | 100 pins | 100 pins | 100 pins | 100 pins | 100 pins |
Key Differentiators
- USB connectivity in a 100-pin low-power MCU package (vs STM32L071VBT6)
- Closest STM32L0 family extension with the same package (vs STM32L073VBT6)
- Direct USB and 128 KB Flash configuration for compact products (vs STM32L081VBT6)
Design Notes
Design the supply network for the full 1.65 V to 3.6 V operating range and the selected USB operating state. Place the manufacturer-recommended supply capacitors close to the appropriate power and ground pins, keep return-current paths compact, and verify startup sequencing if the circuit also powers a USB transceiver, display, or radio. Battery-powered designs should compare active, USB-connected, sleep, and standby current rather than relying on nominal processor current alone.
Route USB differential pairs as a controlled impedance pair with continuous reference plane, minimized stubs, and ESD protection placed close to the connector. Separate sensitive analog inputs from switching nodes and high-current return paths. Because the STM32L072VBT6 uses a 100-pin LQFP with fine lead spacing, verify the manufacturer land pattern, pin-1 orientation, paste stencil, solder profile, and assembly clearance before fabrication.
Do not assume that a package-compatible STM32L0 variant is electrically and firmware interchangeable. Compare every used GPIO alternate function, USB role, timer channel, serial interface, clock source, reset behavior, and power pin across the original and replacement device. Flash bootloader and driver assumptions must also be revalidated. For cross-manufacturer alternatives, treat the substitution as a new design requiring schematic, timing, EMC, and firmware qualification.
The LQFP package supports conventional PCB assembly, but final thermal performance depends on copper area, airflow, adjacent heat sources, and switching rate of the selected peripherals. Estimate internal power use from the operating mode and peripheral activity, then verify junction-temperature margin using the manufacturer's thermal model. Do not substitute a nominal maximum-clock figure for actual workload power when designing compact enclosed instruments.
Compliance Information
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations appear in the product information. Confirm the current declarations and product qualification status with STMicroelectronics before production release.