My Inquiry
My Account
STMicroelectronics STM32F071VBT6
- Part No.:
- STM32F071VBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F071VBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:145
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F071VBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0 microcontroller in LQFP100 package, operating up to 48 MHz with 128 KB Flash, 16 KB SRAM (HW parity), and integrated peripherals including dual 12-bit ADC/DAC, 12 timers (including advanced-control TIM1), RTC with calendar, and multiple communication interfaces (4 USARTs, 2 I²C, 2 SPI/I²S). It targets industrial control panels requiring deterministic real-time response, low-power HMI sensing, and robust serial connectivity.
For engineers reviewing the STM32F071VBT6 datasheet, STM32F071VBT6 pinout, STM32F071VBT6 application, or STM32F071VBT6 equivalent, key selection criteria include its 100-pin LQFP package with 87 fast I/Os (68 5V-tolerant), 48 MHz HSI48 oscillator with auto-trimming, 12-bit DAC dual-channel output, capacitive touch support (24 channels), and dual-voltage I/O capability (VDDIO2 = 1.65–3.6 V).
Technical Context
The STM32F071VBT6 implements an Arm Cortex-M0 core with Harvard bus architecture, supporting Thumb-2 instruction set and NVIC with 32 interrupt lines. Its memory subsystem includes 128 KB of single-cycle Flash with ECC protection and 16 KB of SRAM with hardware parity checking-enabling safe operation in industrial environments.
Clock management integrates four oscillators: 4–32 MHz HSE, 32 kHz LSE for RTC, 8 MHz HSI with x6 PLL, and 48 MHz HSI48 with automatic trimming via external synchronization-providing precise timing for USB-free device-class applications without crystal dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables deterministic real-time task scheduling with <100 ns interrupt latency. |
| Flash Memory | 128 KB - sufficient for complex firmware with bootloader, OTA update partition, and safety-critical code duplication. |
| SRAM | 16 KB with hardware parity - detects and flags single-bit memory errors during runtime for functional safety compliance. |
| ADC | 12-bit, 1.0 µs conversion, 16-channel - supports simultaneous sampling of motor current, voltage, and temperature with <±1 LSB INL. |
| DAC | 12-bit, 2-channel - provides analog waveform generation or programmable bias voltage for sensor conditioning circuits. |
| I/O Count | 87 fast I/Os, 68 5V-tolerant - allows direct interfacing with legacy 5V logic and industrial sensors without level shifters. |
| Timers | 12 timers including 16-bit advanced-control TIM1 - delivers six-channel complementary PWM with dead-time insertion for BLDC motor gate driving. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) with ECOPACK®2 RoHS-compliant finish and thermal pad exposed on underside for enhanced heat dissipation in continuous 48 MHz operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Digital (VDD/VSS) and analog (VDDA/VSSA) domains are separated to minimize noise coupling into ADC/DAC paths. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15, PF0–PF1 | General-purpose I/O ports | All pins support external interrupt vectors; 68 pins tolerate 5V inputs while powered at 2.0–3.6 V, enabling mixed-voltage system integration. |
| NRST | Active-low reset input | Accepts 1.65–3.6 V logic levels; internal pull-up ensures reliable deassertion during power ramp; supports external reset supervisor ICs. |
| BOOT0 | Boot mode selection | High at power-on selects system memory boot (for DFU/ISP); low selects user Flash - critical for field firmware recovery. |
| OSC_IN / OSC_OUT | HSE crystal oscillator interface | Supports 4–32 MHz quartz crystals; internal load capacitance configurable via option bytes - eliminates need for external caps in cost-sensitive designs. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Sensing Controller (TSC) | 24-channel support for self- and mutual-capacitance measurement - enables robust touchkey, slider, and rotary encoder UIs without external ICs. |
| HSI48 Oscillator | 48 MHz RC oscillator with automatic trimming against external clock - achieves ±0.25% accuracy over temperature/voltage, eliminating crystal for USB-less HID applications. |
| Independent Watchdog (IWDG) | 12-bit downcounter driven by 40 kHz LSI - provides fail-safe reset independent of main clock domain for ASIL-B-level monitoring. |
| USART with ISO7816 | Two USARTs support ISO/IEC 7816-3 smartcard protocol - enables secure element interfacing in access control and payment terminals. |
| Programmable Voltage Detector (PVD) | Configurable threshold (2.2–2.9 V in steps) with interrupt output - triggers early warning before brown-out, allowing graceful shutdown of peripherals and data save. |
Applications
| Industrial Motor Control | Smart Building HMI |
|---|---|
Use Scenario: Compact BLDC fan controller with speed regulation, overcurrent protection, and local display. IC Role / Device Role / Timing Role: Main MCU executing FOC algorithm, generating 6-channel PWM via TIM1, sampling current/voltage via ADC, and managing UART-based commissioning. Use Value: Integrated 12-bit DAC generates reference voltage for current-sense amplifier; 5V-tolerant I/Os interface directly with Hall-effect sensors and optocoupled feedback. | Use Scenario: Wall-mounted HVAC thermostat with capacitive touch buttons, ambient sensor fusion, and RS-485 building automation interface. IC Role / Device Role / Timing Role: System controller handling TSC-driven UI, multi-sensor ADC reads (temp/humidity/CO₂), and Modbus RTU over USART2 with automatic direction control. Use Value: 24-channel TSC eliminates external touch controller; RTC with calendar enables scheduled setpoint changes; VBAT backup preserves time across power loss. |
| Medical Patient Monitor Front-End | Energy Meter Data Logger |
Use Scenario: Portable pulse oximeter with LED driver control, photodiode signal acquisition, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Signal processor acquiring synchronized red/IR ADC samples, modulating LED drivers via DAC outputs, and managing BLE UART bridge. Use Value: Dual 12-bit DAC channels drive precision LED current sources; 1.0 µs ADC enables high-SNR sampling at >1 kHz; low-power Stop mode extends battery life between measurements. | Use Scenario: DIN-rail mounted electricity meter with metrology ADC interface, tamper detection, and GPRS modem control. IC Role / Device Role / Timing Role: Host controller managing SPI-connected metrology IC, reading tamper switch inputs via EXTI, and controlling modem power via GPIO-driven MOSFET. Use Value: 7-channel DMA offloads SPI transfers from CPU; 87 I/Os accommodate isolated digital inputs, relay drivers, and status LEDs; CRC unit validates firmware integrity during OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072VBT6 | Includes full-speed USB 2.0 OTG peripheral; identical Flash/SRAM/timers/peripherals otherwise. | Required where host/device USB connectivity is mandatory (e.g., firmware update via USB mass storage). | Select when USB interface is essential; otherwise STM32F071VBT6 offers lower BOM cost and reduced EMI from omitted USB PHY. |
| STM32F091VCT6 | 128 KB Flash, 32 KB SRAM, adds CAN 2.0B controller and additional USART; same LQFP100 package. | Suitable for automotive body electronics or industrial fieldbus nodes requiring CAN physical layer integration. | Choose if CAN bus communication is required; STM32F071VBT6 remains optimal for pure serial/HMI/motor control without CAN overhead. |
Compared with STM32F072VBT6, the STM32F071VBT6 trades USB capability for lower system noise and cost; versus STM32F091VCT6, it reduces SRAM and omits CAN to prioritize deterministic real-time I/O and analog performance in space-constrained industrial controllers.
Availability
STM32F071VBT6 is available at Aetrix Electronics and suitable for industrial motor drives, smart building HMIs, medical front-ends, and energy metering systems requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for STM32F071VBT6 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications demanding high reliability, ultra-low power, and rich analog/mixed-signal integration - optimized for industrial control, appliance HMI, and sensor node endpoints.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F071VBT6 achieves 48 MHz maximum CPU frequency using its internal 48 MHz HSI48 oscillator with automatic trimming based on external synchronization, or via PLL multiplication of the 8 MHz HSI or external HSE crystal. No external crystal is required for full-speed operation, reducing BOM count and board area.
Does this MCU support hardware CRC calculation?
Yes - it includes a dedicated cyclic redundancy check (CRC) calculation unit compliant with IEEE-802.3, capable of computing CRC-32 over arbitrary data lengths in hardware. This accelerates firmware image validation, communication frame checksumming, and EEPROM data integrity checks without CPU intervention.
How many I/O pins support 5V tolerance and what is the voltage range for VDDIO2?
Up to 68 I/O pins are 5V tolerant when VDD is 2.0–3.6 V. The VDDIO2 supply rail (available on selected I/Os) operates from 1.65 V to 3.6 V, enabling direct interfacing with 1.8 V or 2.5 V logic families while maintaining full 5V tolerance on other pins - ideal for mixed-voltage industrial backplanes.
What low-power modes are available and what is typical current in Stop mode?
It supports Sleep, Stop, and Standby modes. In Stop mode with RTC and SRAM retention enabled, typical current consumption is 1.2 µA at 25°C (VDD = 3.3 V), allowing battery-backed operation for months. Wakeup occurs in ≤5 µs via EXTI, RTC alarm, or USART start bit detection.
STM32F071VBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 87
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 19x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F071VBT6 FAQ
1.How can I place an order for STM32F071VBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F071VBT6 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 STM32F071VBT6 reliable?
The price and inventory of STM32F071VBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F071VBT6 is usually 5 days.
3.What payment methods are accepted for STM32F071VBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F071VBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F071VBT6?
STM32F071VBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F071VBT6 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 STM32F071VBT6?
For technical support, including STM32F071VBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F071VBT6 requirements.
6.How does Aetrix verify that STM32F071VBT6 is sourced from the original manufacturer or authorized distributors?
All STM32F071VBT6 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 STM32F071VBT6 meets industry standards.
7.What is the process for return or replacement of STM32F071VBT6?
All STM32F071VBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F071VBT6, 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 STM32F071VBT6 part is unused and in its original packaging.
Return procedure for STM32F071VBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F071VBT6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
