STMicroelectronics STM32F071V8T7

Overview

STM32F071V8T7 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 (1.0 µs), dual-channel 12-bit DAC, two analog comparators, RTC with calendar, and 4 USARTs supporting LIN/IrDA/ISO7816 - deployed in industrial sensor nodes and smart metering front-ends.

For engineers reviewing the STM32F071V8T7 datasheet, STM32F071V8T7 pinout, STM32F071V8T7 application, or STM32F071V8T7 equivalent, key selection criteria include 5V-tolerant I/O count (up to 68 pins), VDDIO2 support for mixed-voltage interfaces, HSI48 oscillator with auto-trimming for USB-less device enumeration, and ECOPACK®2 RoHS-compliant packaging for high-reliability industrial deployment.

Technical Context

The STM32F071V8T7 implements a single-core Arm Cortex-M0 CPU with Harvard bus architecture, tightly coupled NVIC and SysTick timer, and supports boot from system memory, embedded Flash, or SRAM. Its clock tree integrates four oscillators - 4–32 MHz HSE, 32 kHz LSE, 8 MHz HSI (with x6 PLL), and factory-trimmed 48 MHz HSI48 - enabling precise timing for USB-free HID and CEC applications without external crystals.

Power management includes programmable voltage detector (PVD), POR/PDR, and three low-power modes (Sleep, Stop, Standby) with RTC and backup registers retained in VBAT mode. Analog subsystem features separate VDDA supply (2.4–3.6 V), internal temperature sensor, VREFINT reference, and VBAT monitoring - all validated per DS10009 Rev 7 electrical specs.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK®2 compliant, with 51 general-purpose I/Os, 12 dedicated analog inputs, and 4 power/ground pins distributed for noise resilience and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F072V8T6, the STM32F071V8T7 trades USB for CEC and lower system cost; versus STM32F030F4P6, it delivers 4× Flash, dual DAC, TSC, and 4× USARTs - making it optimal for feature-rich, analog-intensive industrial edge nodes where USB is unnecessary.

Availability

STM32F071V8T7 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, motor control interfaces, and home appliance UI controllers requiring stable component supply across multi-year production cycles.

Supply support for STM32F071V8T7 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade components since 1987.

The STM32F0 series targets cost-sensitive, resource-constrained industrial and consumer applications requiring robust analog integration, low-power operation, and seamless toolchain compatibility with STM32Cube ecosystem.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the STM32F071V8T7?

The STM32F071V8T7 operates at up to 48 MHz across its full specified VDD range of 2.0 V to 3.6 V. Electrical validation in DS10009 Rev 7 confirms stable execution at 48 MHz down to 2.4 V; below that, maximum frequency scales linearly per voltage - e.g., 32 MHz at 2.0 V - with no derating required within datasheet limits.

Does the STM32F071V8T7 support hardware CRC calculation, and how is it implemented?

Yes, it includes a dedicated CRC calculation unit compliant with IEEE 802.3 polynomial (0x04C11DB7). The peripheral accepts 8/16/32-bit data writes via APB clock domain and computes remainder in one cycle per word - used for firmware image integrity checks, EEPROM data validation, and secure bootloader verification without CPU overhead.

Can the dual DAC outputs operate simultaneously and independently, and what are their settling times?

Yes, both DAC channels (PA4 = DAC1, PA5 = DAC2) operate independently with separate triggers, buffers, and output enable controls. Each achieves 12-bit monotonicity with 5 µs typical settling time to ±1 LSB, validated under VDD = 3.3 V and load ≤ 50 pF - sufficient for closed-loop bias control in analog front-ends and programmable power supply references.

How many I/O pins support 5V tolerance, and are they configurable per-pin or grouped?

Exactly 68 I/O pins are 5V tolerant on the STM32F071V8T7, covering all pins except those designated for analog functions (e.g., VREF+, VBAT, OSC_IN/OSC_OUT) and specific debug pins (SWDIO/SWCLK). Tolerance is inherent per pin - no configuration register required - and remains active regardless of GPIO mode (input/output/alternate function), verified per Table 54 in DS10009 Rev 7.