STMicroelectronics STM32F030R8T6TR

Overview

STM32F030R8T6TR from STMicroelectronics is a value-line Arm® Cortex®-M0 32-bit microcontroller in LQFP64 package, operating at up to 48 MHz with 64 KB Flash, 8 KB SRAM, and integrated 12-bit ADC, six USARTs, two SPIs, and two I²C interfaces. It supports 5V-tolerant I/Os and delivers real-time control for industrial sensor nodes and motor drive subsystems.

For engineers reviewing the STM32F030R8T6TR datasheet, STM32F030R8T6TR pinout, STM32F030R8T6TR application, or STM32F030R8T6TR equivalent, key selection criteria include Flash/SRAM sizing, 5V-tolerant GPIO count, RTC alarm capability, low-power Stop/Standby modes, and SWD debug interface compatibility.

Technical Context

The device implements an Arm Cortex-M0 core with Harvard architecture, 3-stage pipeline, and no cache-optimized for deterministic real-time response in cost-sensitive embedded systems. Its clock tree integrates dual oscillators (8 MHz HSI + 32 kHz LSE), PLL for 48 MHz system clock, and independent clock gating per peripheral.

Power management includes POR/PDR, programmable voltage detector (PVD), and three low-power modes (Sleep, Stop, Standby) with wake-up via EXTI lines, RTC alarm, or I²C address match. The 12-bit ADC features hardware oversampling, temperature sensor, and VREFINT calibration for ±2 LSB INL across 0–85°C.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK®2 compliant, with exposed thermal pad for enhanced power dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F030F4P6 and STM32F070F6P6, the STM32F030R8T6TR offers superior peripheral integration-including RTC calendar, 6-channel PWM, and 55 I/Os-making it optimal for compact industrial controllers where feature density outweighs pin-count minimization.

Availability

STM32F030R8T6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart power outlets, BLDC motor starters, and building automation controllers requiring stable component supply and long-term production support.

Supply support for STM32F030R8T6TR 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, specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.

The STM32F0 series targets cost-sensitive, high-volume embedded applications requiring Arm Cortex-M0 performance with rich analog and timing peripherals-designed specifically for industrial control, appliance, and IoT edge node use cases.

FAQ

What is the maximum operating frequency and supported voltage range?

The STM32F030R8T6TR operates at up to 48 MHz using its internal PLL and supports a digital supply voltage range of 2.4 V to 3.6 V. The analog supply (VDDA) must be within the same 2.4–3.6 V range and may be tied to VDD if noise isolation is not required. Absolute maximum ratings prohibit exceeding 4.0 V on any pin.

Does this MCU support hardware debugging and programming in-circuit?

Yes, it supports Serial Wire Debug (SWD) via dedicated SWDIO and SWCLK pins, enabling full debug functionality-including breakpoints, register inspection, and flash programming-using standard tools like ST-LINK/V2 or compatible JTAG/SWD adapters without requiring additional hardware interfaces.

How many I/O pins are 5V tolerant, and what does that mean for system design?

All 55 general-purpose I/O pins are 5V tolerant, meaning they safely accept 5V logic-level inputs while the MCU is powered from 3.3 V. This eliminates the need for external level shifters when interfacing with legacy 5V peripherals such as sensors, displays, or industrial I/O modules, simplifying schematic design and reducing bill-of-materials cost.

Is there built-in support for real-time clock functionality with battery backup?

The device includes a calendar RTC with alarm and periodic wakeup capability, but it does not integrate a dedicated VBAT pin or battery-switchover circuitry. To maintain RTC operation during main power loss, an external diode-or circuit and backup battery (e.g., CR1220) must be connected to VDDA, with software initialization of the RTC clock source (LSE) and calendar registers.