STMicroelectronics STM32F071V8T7TR

Overview

STM32F071V8T7TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0 microcontroller in LQFP64 package, operating up to 48 MHz with 64 KB Flash, 16 KB SRAM (HW parity), and integrated peripherals including 12-bit ADC, dual-channel 12-bit DAC, two analog comparators, and capacitive touch sensing. It targets cost-sensitive industrial control, smart sensors, and entry-level HMI applications requiring low-power operation and rich analog integration.

For engineers reviewing the STM32F071V8T7TR datasheet, STM32F071V8T7TR pinout, STM32F071V8T7TR application, or STM32F071V8T7TR equivalent, key selection criteria include Flash/SRAM size, 5V-tolerant I/O count (up to 68 pins), VDDIO2 support for mixed-voltage interfacing, RTC with calendar and wakeup, and dual DAC channel availability for analog waveform generation.

Technical Context

The device implements a single-core Arm Cortex-M0 CPU with Harvard architecture, supporting Thumb-2 instruction set and NVIC with 32 interrupt lines. Memory subsystem includes unified Flash with 24-bit addressing, SRAM with hardware parity checking, and dedicated boot ROM with system memory loader.

Clock management integrates multiple oscillators: 4–32 MHz external crystal (HSE), 32 kHz LSE for RTC, internal 8 MHz RC (HSI) with PLL, and factory-trimmed 48 MHz HSI48 oscillator for USB-free USB-like timing. Power management supports Sleep, Stop, and Standby modes with programmable voltage detector (PVD) and VBAT backup for RTC and registers.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) with ECOPACK®2 RoHS-compliant finish and thermal pad exposed on underside for enhanced heat dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F070F6P6, the STM32F071V8T7TR adds dual DAC and TSC for analog output and touch UI; compared with STM32F072CBT6, it trades USB for HDMI CEC and reduces Flash to 64 KB - making it optimal for cost-sensitive, CEC-enabled, or touch-integrated industrial controllers without USB host/device requirements.

Availability

STM32F071V8T7TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home thermostats, PLC I/O modules, and USB-free firmware updaters requiring stable component supply across multi-year production cycles.

Supply support for STM32F071V8T7TR 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 ICs, sensors, and automotive-grade components since 1987.

The STM32F0 series targets cost-optimized, low-power embedded applications with Cortex-M0 cores, emphasizing analog integration, industrial reliability, and simplified toolchain adoption for entry-level firmware development.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F071V8T7TR achieves 48 MHz maximum CPU frequency using its internal 48 MHz HSI48 oscillator with automatic trimming based on external clock synchronization, or via PLL multiplication of the 8 MHz HSI or external crystal. No external high-frequency crystal is required for full-speed operation, reducing BOM cost and board space.

Does this MCU support hardware CRC calculation?

Yes - it includes a dedicated CRC calculation unit compliant with CRC-32 (IEEE 802.3) and configurable for CRC-16/CRC-8. This accelerates firmware integrity checks, OTA update validation, and communication frame error detection without CPU overhead or software library dependency.

How many I/O pins support independent VDDIO2 supply and why is this useful?

19 I/O pins support independent VDDIO2 supply (1.65–3.6 V). This enables direct interfacing with mixed-voltage peripherals - such as 1.8 V logic, 2.5 V sensors, or 3.3 V FPGAs - while maintaining full 5V tolerance on other pins, eliminating level translators in heterogeneous system designs.

Is the device qualified for industrial temperature range and what is the specification?

Yes - the STM32F071V8T7TR is rated for −40 °C to +85 °C ambient operating temperature per datasheet DS10009 Rev 7. This qualifies it for deployment in industrial automation, building controls, and outdoor metering applications without derating or additional thermal management.