STMicroelectronics STM32F030RCT6

Overview

STM32F030RCT6 from STMicroelectronics is a value-line Arm® Cortex®-M0 32-bit microcontroller with 256 KB Flash, 32 KB SRAM, and operation at 2.4–3.6 V. It integrates a 12-bit ADC (1 µs conversion), six USARTs (one with auto baud rate detection), two SPIs (18 Mbit/s), and an advanced-control timer for six-channel PWM-used in industrial motor control and smart sensor nodes.

For engineers reviewing the STM32F030RCT6 datasheet, STM32F030RCT6 pinout, STM32F030RCT6 application, or STM32F030RCT6 equivalent, key selection criteria include its LQFP64 package, 48 MHz max CPU frequency, 55 I/Os (up to 5V tolerant), RTC with alarm, and SWD debug interface-critical for cost-sensitive embedded designs requiring mixed-signal integration and low-power operation.

Technical Context

The device implements a single-cycle Cortex-M0 core with Harvard bus architecture, supporting Thumb-2 instruction set and nested vectored interrupt controller (NVIC) for deterministic real-time response. Its clock tree includes dual oscillators (4–32 MHz HSE + 32 kHz LSE), internal 8 MHz RC with x6 PLL, and 40 kHz LSI for independent watchdog and RTC operation.

Memory subsystem features hardware parity on SRAM and CRC calculation unit for firmware integrity. Power management supports Sleep, Stop, and Standby modes with wakeup from GPIO, RTC alarm, or USART event-enabling sub-µA standby current while retaining RTC and 4 KB SRAM retention.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package compliant with ECOPACK®2 environmental standard. Pinout validated per STMicroelectronics DS9773 Rev 5 Figure 5 (LQFP64 for STM32F030RC devices).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F030F4P6 and STM32F070F6P6, the STM32F030RCT6 offers significantly higher integration-256 KB Flash, 55 I/Os, RTC, and advanced timers-making it optimal for feature-rich, space-constrained industrial controls where peripheral consolidation reduces PCB layer count and bill-of-materials complexity.

Availability

STM32F030RCT6 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, IoT sensor nodes, and white goods control panels requiring stable component supply and long-term manufacturability.

Supply support for STM32F030RCT6 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 embedded applications demanding high reliability, low power, and rich peripheral integration-designed specifically for entry-level industrial automation, home appliances, and smart infrastructure endpoints.

FAQ

What is the maximum operating frequency and voltage range of the STM32F030RCT6?

The STM32F030RCT6 operates at up to 48 MHz CPU frequency with a supply voltage range of 2.4 V to 3.6 V for digital and analog domains. The analog supply (VDDA) must be equal to or less than VDD but ≥2.4 V to ensure ADC accuracy and internal reference stability per DS9773 Section 6.3.1.

Does the STM32F030RCT6 support hardware debugging, and which interface is used?

Yes, it supports Serial Wire Debug (SWD) using dedicated SWDIO and SWCLK pins-no JTAG header required. This two-wire interface enables full programming, real-time tracing, and breakpoint debugging with minimal PCB footprint and zero impact on application I/O resources.

How many I/O pins are 5V tolerant, and what is their functional significance?

All 55 general-purpose I/O pins are 5V tolerant when VDD is ≥2.4 V. This eliminates external level-shifting components when interfacing with legacy 5V sensors, displays, or logic-reducing BOM cost, board area, and signal integrity risks in mixed-voltage industrial designs.

What low-power modes does the STM32F030RCT6 support, and what is retained in Standby mode?

It supports Sleep, Stop, and Standby modes. In Standby mode, only the RTC, 4 KB of SRAM, and backup registers remain powered-drawing typical 0.5 µA. Wakeup sources include RTC alarm, external interrupt, or I2C address match, enabling ultra-low-energy periodic sensing applications.