STMicroelectronics STM32G051F8P3TR

Overview

STM32G051F8P3TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller in TSSOP20 package, operating at up to 64 MHz with 64 KB Flash, 18 KB SRAM, and integrated 12-bit ADC/DAC, dual USARTs (one with LIN/IrDA), and low-power UART. It targets compact industrial sensors and battery-powered IoT edge nodes requiring real-time control, analog signal conditioning, and serial connectivity.

For engineers reviewing the STM32G051F8P3TR datasheet, STM32G051F8P3TR pinout, STM32G051F8P3TR application, or STM32G051F8P3TR equivalent, key selection criteria include its 20-pin TSSOP footprint, 1.7–3.6 V supply range, -40°C to 105°C extended temperature grade, dual 12-bit DACs with sample-and-hold, and hardware CRC unit for firmware integrity verification.

Technical Context

The device implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU), supporting TrustZone-like secure execution isolation. Its clock system integrates four oscillators: 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI with PLL, and 32 kHz LSI - enabling precise RTC operation and flexible low-power mode transitions.

Peripheral interconnect uses a hierarchical AHB/APB bus matrix with DMA request multiplexer (DMAMUX) for flexible channel mapping. Analog subsystem includes two rail-to-rail comparators with programmable hysteresis and input routing, plus temperature sensor and VREFINT reference for self-calibration of ADC/DAC.

Key Specifications

Pinout & Package

TSSOP20 (6.4 × 4.4 mm) package with 20-pin surface-mount footprint, optimized for automated assembly and board-level space constraints in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G051F8P3TR, the G031 offers lower BOM cost but sacrifices DAC-based analog output and dual-protocol USART flexibility; the G071 adds USB and memory scalability at higher unit cost and power consumption in active modes.

Availability

STM32G051F8P3TR is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, and portable medical diagnostics requiring stable component supply across long production lifecycles.

Supply support for STM32G051F8P3TR 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 specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, ultra-low-power embedded applications demanding Arm Cortex-M0+ performance with enhanced analog integration and security features - designed specifically for next-generation IoT endpoints and industrial edge controllers.

FAQ

What is the maximum operating frequency and voltage range for STM32G051F8P3TR?

The STM32G051F8P3TR operates at up to 64 MHz across a supply voltage range of 1.7 V to 3.6 V. Its internal 16 MHz RC oscillator can be boosted via PLL to achieve full CPU speed without external crystal, though HSE support enables precise timing for communication interfaces like USART and I2C.

Does STM32G051F8P3TR support hardware encryption or secure boot features?

It includes Readout Protection (ROP) Levels 1 and 2 to prevent unauthorized flash memory access via debug interfaces, and a securable flash area for isolating sensitive code. While it lacks dedicated AES engines, its CRC unit and MPU support secure firmware validation and privilege separation for basic IEC 62443-3-3 SL1 compliance.

How many analog-to-digital converter (ADC) channels does this MCU support?

The device integrates a single 12-bit ADC with up to 16 external input channels and internal sources (temperature sensor, VREFINT, VBAT). Conversion time is 0.4 µs, and hardware oversampling extends effective resolution to 16 bits - confirmed in Section 3.14 and Table 59 of DS13303 Rev 4.

Is the TSSOP20 package RoHS-compliant and lead-free?

Yes, all STM32G051F8P3TR units shipped by STMicroelectronics comply with RoHS Directive 2011/65/EU and are lead-free. The device carries ECOPACK2 certification, indicating halogen-free materials and adherence to ST's environmental standards per datasheet Table 1 and packaging documentation.