STMicroelectronics STM32G051F8P3

Overview

STM32G051F8P3 from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 64 KB Flash, 18 KB SRAM, dual USARTs (one supporting LIN/IrDA/ISO7816), two 12-bit DACs, and 12-bit ADC with hardware oversampling-designed for compact industrial control nodes requiring integrated analog I/O and low-power operation down to 1.7 V.

For engineers reviewing the STM32G051F8P3 datasheet, STM32G051F8P3 pinout, STM32G051F8P3 application, or STM32G051F8P3 equivalent, key selection criteria include its 20-pin TSSOP package, 64 MHz max CPU frequency, 14-timer suite including two low-power timers, RTC with alarm/wakeup, and dual I²C interfaces with Fast-mode Plus (1 Mbit/s) support.

Technical Context

The device integrates an Arm Cortex-M0+ core with MPU, a 128 MHz-capable advanced timer (TIM1), and dual 12-bit DACs with sample-and-hold-enabling closed-loop analog output control without external components. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, and internal 16 MHz RC with PLL for flexible timing across operating modes.

Power architecture supports five low-power states (Sleep, Stop 0/1, Standby, Shutdown) with programmable BOR/PVD, VBAT backup for RTC, and 5 V-tolerant GPIOs on select pins. The 7-channel DMA controller features flexible peripheral mapping and supports concurrent transfers across ADC, DAC, USART, and SPI peripherals.

Key Specifications

Pinout & Package

STM32G051F8P3 uses a 20-pin TSSOP package (YA variant) with 17 general-purpose I/Os, all mappable to external interrupt vectors. Five pins are 5 V-tolerant (PA0–PA4), enabling direct interfacing with legacy 5 V logic without level shifters.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G031F8P6, the STM32G051F8P3 adds dual DACs and LPUART for analog control and battery-efficient communication; versus STM32G071F8P6, it trades USB and memory headroom for lower cost and footprint-ideal for fixed-function embedded controllers.

Availability

STM32G051F8P3 is available at Aetrix Electronics and suitable for industrial automation interfaces, smart sensor nodes, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and ECOPACK2-compliant packaging.

Supply support for STM32G051F8P3 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, specializing in microcontrollers, power management, and automotive ICs with strong industrial and consumer market presence.

The STM32G0 series targets cost-sensitive, space-constrained embedded applications demanding high integration, low power, and robust security-positioned between legacy 8-bit MCUs and higher-end Cortex-M3/M4 devices.

FAQ

What is the maximum operating frequency of the STM32G051F8P3?

The STM32G051F8P3 operates at up to 64 MHz using its internal 16 MHz RC oscillator with PLL multiplication or an external crystal up to 48 MHz. This frequency is fully supported across the full -40°C to +85°C temperature range and 1.7–3.6 V supply, with timing validated per DS13303 Rev 4 Section 5.3.24.

Does the STM32G051F8P3 support hardware encryption or secure boot?

Yes-it implements readout protection (ROP) levels that prevent unauthorized access to Flash contents and enforce secure boot sequences. While it lacks dedicated AES accelerators, its ROP and securable Flash area provide foundational firmware protection aligned with IEC 62443 Level 1 requirements for industrial devices.

Can the STM32G051F8P3 drive 5 V logic directly?

Yes-pins PA0 through PA4 are explicitly specified as 5 V-tolerant in the datasheet (Section 5.3.14). These GPIOs accept 5 V inputs while powered from 1.7–3.6 V, enabling direct connection to legacy 5 V peripherals without external level shifters-critical for industrial I/O consolidation.

What debug interface does the STM32G051F8P3 use?

The device uses Serial Wire Debug (SWD) via dedicated PA13 (SWDIO) and PA14 (SWCLK) pins. SWD requires only two pins and supports full JTAG-equivalent functionality-including flash programming, real-time variable inspection, and breakpoint debugging-without needing a full 20-pin JTAG connector.