STM32F030R8T6 ST Mainstream Arm Cortex-M0 Value Line 32-bit MCU 64KB Flash 48MHz CPU 12-bit ADC LQFP-64

STM32F030R8T6 Product Overview

The STM32F030R8T6 is a mainstream Arm Cortex-M0 value line 32-bit MCU from STMicroelectronics, housed in an LQFP-64 package (10×10×1.45 mm). It incorporates a 48 MHz high-performance Arm Cortex-M0 32-bit RISC core, with 64 KB Flash, 8 KB SRAM with hardware parity, and a CRC calculation unit. On-chip peripherals include a 12-bit ADC (up to 18 channels, 1.0 µs conversion time), 5-channel DMA controller, calendar RTC with alarm and periodic wakeup, 11 timers (including one 16-bit advanced-control timer for six-channel PWM output, up to seven 16-bit general-purpose timers, independent and system window watchdog timers, and SysTick timer), and up to two I2C (Fast Mode Plus 1 Mbit/s), up to two SPIs (18 Mbit/s), and up to six USARTs (supporting master synchronous SPI and modem control). The device provides 55 fast I/Os, all 5 V-tolerant and mappable on external interrupt vectors. It operates from 2.4 V to 3.6 V over -40 °C to 85 °C. All packages are ECOPACK®2 compliant.[reference:20]

STM32F030R8T6 Core Features

Arm Cortex-M0 Core: 32-bit Arm Cortex-M0 RISC core, up to 48 MHz, with built-in Nested Vectored Interrupt Controller Memory: 64 KB Flash with read/write protection, 8 KB SRAM with hardware parity checking and exception generation, CRC calculation unit 12-bit ADC: 1.0 µs conversion time, up to 18 channels, conversion range 0 to 3.6 V, separate analog supply 2.4 V to 3.6 V 5-Channel DMA Controller: Flexible mapping for memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers 11 Timers: One 16-bit advanced-control timer for six-channel PWM output, up to seven 16-bit general-purpose timers (up to four IC/OC, usable for IR control decoding), independent and system window watchdog timers, SysTick timer Calendar RTC: With alarm and periodic wakeup from Stop/Standby Communication Interfaces: Up to two I2C (Fast Mode Plus 1 Mbit/s support, 20 mA current sink), up to six USARTs (supporting master synchronous SPI and modem control, one with auto baud rate detection), up to two SPIs (18 Mbit/s, 4 to 16 programmable bit frames) Low-Power Modes: Sleep, Stop, Standby Clock Management: 4–32 MHz crystal oscillator, 32 kHz RTC crystal oscillator with calibration, internal 8 MHz RC with x6 PLL option, internal 40 kHz RC oscillator I/O Resources: 55 fast I/Os, all 5 V-tolerant, all mappable on external interrupt vectors High Reliability: Power-on/power-down reset (POR/PDR), serial wire debug (SWD) Wide Operating Range: 2.4 V to 3.6 V, -40 °C to 85 °C Green Packaging: ECOPACK®2 compliant, LQFP-64 package (10×10×1.45 mm)

STM32F030R8T6 Applications

Industrial Control: PLCs, sensor transmitters, RS-485 communication nodes, small actuators, inverters Motor Control: Fans, pumps, small motor drives — advanced-control timer supports 6-channel PWM output Consumer Electronics: Remote controls, electric toothbrushes, electronic toys, handheld devices, PC peripherals (printers, scanners) Home Appliances: Induction/microwave oven panels, HVAC systems, alarm systems, smart lighting IoT Nodes: Wireless sensor terminals, environmental monitoring modules, smart home control LED Lighting: Dimming control, RGB strip drivers, switching power supply management Automotive Electronics: Vehicle light control, window anti-pinch, automotive sensor nodes (non-safety-critical) A/V Equipment: A/V receivers, digital TV, video intercom

STM32F030R8T6 Key Advantages

Arm Cortex-M0 32-bit Performance: 48 MHz high-performance 32-bit ARM core, far exceeding 8/16-bit MCU processing capability for complex algorithms 64 KB Flash + 8 KB SRAM Balanced Configuration: Double the program storage and data buffer capacity compared to 32 KB Flash/4 KB SRAM variants in the same series — ideal for more complex applications 55 5V-Tolerant I/Os: Rich I/O resources, all 5 V-tolerant — connecting 5 V peripherals without level shifters, reducing BOM cost 12-bit High-Speed ADC: 1.0 µs conversion time, 18 channels, separate analog supply, analog watchdog for precise monitoring Rich Communication Interfaces: Up to 6 USARTs, 2 SPIs (18 Mbit/s), 2 I2Cs (Fast Mode Plus 1 Mbit/s) — abundant communication peripherals for multi-bus connectivity 11 Timers: Including 1x 16-bit advanced-control timer (6-channel PWM) and up to 7x 16-bit general-purpose timers (supporting IR control decoding) — ideal for motor control and infrared remote control applications 5-Channel DMA Offloads CPU: Enables direct data transfer between peripherals and memory, significantly reducing CPU load Calendar RTC: Built-in hardware RTC with alarm and periodic wakeup — ideal for scheduled sensing applications Mature STM32 Ecosystem: Compatible with STM32CubeIDE, STM32CubeMX, HAL libraries, abundant development boards and reference designs (official NUCLEO-F030R8 evaluation board features this MCU) Cost-Effective Value Line: 32-bit ARM performance at a competitive price — the ideal upgrade path from 8/16-bit MCUs

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FAQ:

1. What is the STM32F030R8T6 and what are its key specifications?
   The STM32F030R8T6 is a 32‑bit ARM Cortex‑M0 microcontroller from STMicroelectronics, running at up to 48 MHz with 64 KB of Flash and 8 KB of SRAM. It features a 12‑bit 1 Msps ADC, a 16‑bit general‑purpose timer with complementary outputs (TIM15), up to 6 USARTs, 2 SPIs, and 2 I2Cs. Housed in an LQFP‑64 package, it provides 55 I/O pins and operates over ‑40 °C to +85 °C. This combination of a generous pin count, solid communication features, and a motor‑control‑capable timer makes it a well‑rounded choice for many industrial, consumer, and IoT applications that need more I/O but moderate code space.

2. What are the package dimensions and pin pitch of the STM32F030R8T6?
   It uses an LQFP‑64 package with a body size of 10 mm × 10 mm and a lead pitch of 0.5 mm. The typical height is 1.6 mm. The exposed leads are easy to hand‑solder and inspect visually, making this package suitable for both prototyping and medium‑volume production. The 64‑pin version gives you 55 usable I/O pins, a significant step up from smaller packages.

3. How does the STM32F030R8T6 differ from the STM32F030C8T6? Which one should I choose?
   Both share exactly the same 48 MHz Cortex‑M0 core, 64 KB Flash, 8 KB SRAM, and identical peripherals — including the TIM15 timer with complementary outputs. The only difference is the package. The C8T6 comes in an LQFP‑48 with 39 I/O pins and 10 ADC channels. The R8T6 uses a larger LQFP‑64 package, increasing I/O to 55 pins and ADC inputs to 16 channels. Choose the C8T6 when board space or a simpler layout is the priority. Choose the R8T6 when you need the extra pins for more sensors, displays, or communication interfaces without changing the MCU family.

4. How does the STM32F030R8T6 compare with the STM32F030RCT6? What do I get with the larger memory?
   Both are pin‑compatible in the LQFP‑64 package and share the same core, timers (including TIM15), and communication peripherals. The RCT6 upgrades the memory to 256 KB Flash and 32 KB SRAM, four times the Flash and SRAM of the R8T6. This extra space is useful for more complex firmware — multiple protocol stacks, a full RTOS, or a graphical display driver. The R8T6 is a more cost‑optimized solution for applications that fit comfortably in 64 KB Flash and 8 KB SRAM, while the RCT6 is the right move when your code or data requirements outgrow that limit.

5. Does the STM32F030R8T6 have a motor‑control timer? Can it drive a brushless motor?
   It does not have the full advanced‑control timer TIM1, but it does include a 16‑bit general‑purpose timer (TIM15) that provides one complementary PWM pair with programmable dead‑time insertion and a break input. This is sufficient to directly drive a single half‑bridge or a full H‑bridge for a DC motor. For a three‑phase brushless motor you would need three complementary pairs, so the R8T6 would require an external gate‑driver with built‑in dead‑time or you could use three R8T6 devices in a distributed control architecture. If a single‑chip three‑phase motor solution is required, move to the STM32F031 or STM32F051 series, which add the TIM1 timer with four complementary channels.

6. What are the ADC specifications of the STM32F030R8T6? How many analog input channels can I use?
   The integrated 12‑bit successive‑approximation ADC samples at up to 1 Msps. In the LQFP‑64 package, you can access 16 external analog input channels, giving you plenty of flexibility for multi‑sensor acquisition. The ADC can also measure the internal temperature sensor and the internal voltage reference without consuming external pins. There is no on‑chip DAC, so analog outputs must be generated with an external DAC or by filtering a PWM signal.

7. Can the STM32F030R8T6 be powered by 5 V? Are the GPIO pins 5‑volt tolerant?
   The chip must be powered from 2.0 V to 3.6 V; 5 V must never be applied to the VDD pin. Almost all I/O pins (across ports A, B, C, D, and F) are marked FT (5‑volt tolerant) and can safely accept input signals up to 5 V. This allows you to directly interface with 5 V logic devices — reading their outputs or using an open‑drain configuration with an external pull‑up — without external level shifters, greatly simplifying mixed‑voltage designs.

8. How low is the power consumption of the STM32F030R8T6? Is it suitable for battery operation?
   The chip has competitive low‑power figures for its feature set. In Run mode at 48 MHz with all peripherals active, the typical current is around 15–20 mA. Sleep mode drops this to about 3–4 mA. In Stop mode, with the full 8 KB SRAM and registers retained, consumption falls to approximately 6 µA; Standby mode further reduces it to roughly 1.5 µA. Fast wake‑up from Stop mode makes it practical for battery‑powered devices that spend most of their time sleeping and wake only to perform short data acquisition and transmission cycles.

9. How do I program and debug the STM32F030R8T6? What development tools are needed?
   All programming and debugging is done through the SWD (Serial Wire Debug) interface, requiring only SWDIO, SWCLK, VCC, and GND. A low‑cost ST‑LINK/V2 or STLINK‑V3 debugger is the only hardware you need. The free STM32CubeIDE is fully supported, and the chip also works with Keil MDK and IAR EWARM. Use STM32CubeMX for quick graphical pinout and clock configuration. ST provides extensive HAL and LL libraries together with example projects, so you can move from idea to prototype very rapidly.

10. What are the most typical applications for the STM32F030R8T6?
    Thanks to its LQFP‑64 package with 55 I/O pins, 16 ADC channels, and multiple USART/SPI/I2C interfaces, the STM32F030R8T6 is a strong fit for applications that need many I/O and solid communication capabilities without a huge firmware footprint. Common uses include industrial control panels, multi‑sensor data concentrators, smart home gateways, power management units, and appliance controllers. It is particularly popular when you need the connectivity of a 64‑pin package but the 64 KB Flash and 8 KB SRAM are enough for the application logic, keeping the bill of materials optimized.