STMicroelectronics STM32F030R8T6

Overview

STM32F030R8T6 from STMicroelectronics is a value-line Arm® Cortex®-M0 32-bit microcontroller with 64 KB Flash, 8 KB SRAM, 48 MHz max CPU frequency, 55 I/Os (up to 5V tolerant), and integrated peripherals including 12-bit ADC, RTC, six USARTs, two SPIs, and two I²C interfaces - deployed in industrial sensor nodes and smart metering front-ends.

For engineers reviewing the STM32F030R8T6 datasheet, STM32F030R8T6 pinout, STM32F030R8T6 application, or STM32F030R8T6 equivalent, key selection criteria include Flash/SRAM sizing for firmware scalability, 5V-tolerant I/O support for legacy bus interfacing, low-power Stop/Standby modes for battery operation, and SWD debug compatibility for production programming.

Technical Context

The STM32F030R8T6 implements an Arm Cortex-M0 core with Harvard architecture, supporting Thumb-2 instruction set and nested vectored interrupt controller (NVIC) with up to 32 interrupts. It integrates a 4–32 MHz external crystal oscillator and internal 8 MHz RC with x6 PLL for system clock generation.

Its analog subsystem includes a 12-bit, 1.0 µs ADC with 16-channel multiplexing, separate VDDA supply (2.4–3.6 V), and built-in temperature sensor + VREFINT reference - all calibrated at factory and accessible via dedicated registers.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK®2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F030F4P6 and STM32F070F6P6, the STM32F030R8T6 offers balanced integration - retaining full 5V-tolerant I/O, RTC, DMA, and communication flexibility in LQFP64 - making it the optimal choice for mid-complexity embedded control where scalability and peripheral headroom matter.

Availability

STM32F030R8T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, motor control modules, and IoT gateway subsystems requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F030R8T6 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 semiconductors since 1987.

The STM32F0 series targets cost-sensitive, resource-constrained embedded applications - delivering Cortex-M0 performance with industrial-grade reliability, low-power operation, and simplified toolchain support for rapid development.

FAQ

What is the maximum operating frequency of the STM32F030R8T6?

The STM32F030R8T6 operates at a maximum CPU frequency of 48 MHz, achieved using its internal 8 MHz RC oscillator with x6 PLL multiplication or an external 4–32 MHz crystal. This frequency is fully supported across the entire specified VDD range (2.4–3.6 V) and ambient temperature range (–40 to +85 °C), with timing validated per DS9773 Rev 5 Section 6.3.18.

Does the STM32F030R8T6 support 5V-tolerant I/Os, and which pins are included?

Yes, up to 55 I/Os on the STM32F030R8T6 are 5V tolerant when VDD is ≥2.4 V. Confirmed pins include all PA, PB, PC, and PD port pins except NRST, BOOT0, and VDDA/VSSA. This is explicitly documented in Table 11 (pin definitions) and Section 6.3.14 of DS9773 Rev 5, enabling direct interfacing with 5V logic without external level shifters.

Can the STM32F030R8T6 run from a 32.768 kHz crystal, and what functions does it enable?

Yes, the STM32F030R8T6 includes a dedicated 32.768 kHz low-speed external (LSE) oscillator input (pins PC14/PC15) for the calendar RTC. When enabled, this oscillator drives the RTC's calendar, alarm, and periodic wakeup functions - allowing accurate timekeeping and sub-µA wake events from Stop/Standby modes, as verified in Section 3.12 and Table 34 of DS9773 Rev 5.

Is Serial Wire Debug (SWD) the only debug interface supported, and what pins are required?

Yes, Serial Wire Debug (SWD) is the primary and recommended debug interface; JTAG is disabled by default and requires option byte configuration. Only two pins are mandatory: SWDIO (PA13) and SWCLK (PA14). Optional SWO (PA15) supports trace output. This configuration is confirmed in Section 3.16 and Figure 4 of DS9773 Rev 5, ensuring minimal pin footprint for production programming and debug.