Item specifics
Description
STM32G030K6T6 is a Cortex-M0+ MCU at 64 MHz, LQFP-32. 32 KB Flash, 8 KB SRAM, 12-bit ADC (10 ch), LP timers, RTC, 2×USART, 1×SPI/I2S, 1×I2C. 29 x 5 V-tolerant I/Os. 2.0–3.6 V, -40–85 °C. Compact 32-pin alternative to 48-pin models for space-constrained cost-sensitive applications.
Core: Cortex-M0+ 64 MHz Memory: 32 KB Flash, 8 KB SRAM Analog: 12-bit ADC (10 ch) Connectivity: 2×USART, 1×SPI/I2S, 1×I2C Timers: Advanced PWM, LP timers, RTC I/Os: 29 (5 V-tolerant) Package: LQFP-32
IoT sensor nodes, consumer electronics, home appliances, lighting control, space-constrained general-purpose embedded systems
64 MHz Cortex-M0+ with low power consumption Small 32-pin package saves board space Wide 2.0–3.6 V for battery operation 29 I/Os in compact footprint, high value
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FAQ
1. What is the STM32G030K6T6, and what is its main focus in the STM32G0 series?
The STM32G030K6T6 is an ultra‑value entry‑level MCU from STMicroelectronics' STM32G0 series, built around a 64 MHz Arm® Cortex®‑M0+ core in a hand‑solder‑friendly LQFP‑32 package. It strips away USB, CAN FD, and redundant communication interfaces, keeping only one low‑power UART, one SPI/I²C, and a 12‑bit ADC, all with the goal of extreme cost optimization while providing 32 KB Flash and 8 KB SRAM. This chip is purpose‑built for simple, cost‑sensitive embedded applications that do not need complex communication but demand reliability, stability, and low power—such as small appliance control, basic sensor acquisition, and simple human‑machine interfaces.
2. How does the STM32G030K6T6 differ from the G031K6T6, and why is it more affordable?
The G030 is the most streamlined model in the G0 series. Compared to the G031, it further reduces communication peripherals: the G030 provides only one low‑power UART and one SPI/I²C, whereas the G031 has two UARTs and two SPI/I²C interfaces. Additionally, the G030 has fewer DMA channels and timers. These simplifications push the cost of the G030K6T6 even lower, making it ideal for high‑volume applications with modest communication needs. If your product only requires one serial port and one SPI/I²C, the G030 can deliver a significant BOM cost advantage.
3. With only 32 KB Flash and 8 KB SRAM, what kind of programs can I run? Is it enough?
This memory configuration is designed for highly optimized bare‑metal code. The 32 KB Flash can accommodate streamlined peripheral drivers, simple control logic, and basic communication routines. The 8 KB SRAM requires careful variable management, but is perfectly adequate for extremely fixed‑function applications—such as temperature acquisition and display, simple switch control, or timer‑driven operations. If the program size may exceed 32 KB, you can upgrade to the pin‑compatible G030K8T6 with 64 KB Flash and zero hardware changes.
4. Does this chip have a USB or CAN interface? What if I need those?
The G030 series does not integrate USB or CAN FD controllers; its communication relies on a single low‑power UART and one SPI/I²C interface. If USB is a must, you can add an external USB‑UART chip such as the CH340. If you require CAN bus, you can upgrade to the pin‑compatible G071K8T6 (LQFP‑32) or G071CBT6 (LQFP‑48), which have a built‑in FDCAN controller.
5. Is the LQFP‑32 package easy to solder? Is low‑volume hand assembly feasible?
Very easy. The LQFP‑32 has all pins exposed with a generous 0.8 mm pitch, allowing drag‑soldering with a standard iron and flux—no hot‑air station required. The 7 mm × 7 mm size balances compactness with easy manual handling, making it an excellent choice for hobbyists, students, and small teams for prototyping and low‑volume production.
6. What is its power consumption like? Is it suitable for battery‑powered portable devices?
Excellent. The G0 series features a run‑mode current of about 100 µA/MHz and supports multiple low‑power modes—Sleep, Stop, and Standby—with Standby current dropping to the micro‑amp range while retaining the RTC and backup registers. Combined with fast wake‑up times, it can easily achieve years of battery life, making it ideal for wireless sensor nodes, portable medical devices, and outdoor monitoring tools.
7. How accurate is the built‑in 12‑bit ADC? Can it meet typical sensor acquisition needs?
It integrates a 12‑bit successive‑approximation ADC with a maximum sampling rate of 2.5 Msps and up to 16 external input channels. Its accuracy and speed are fully adequate for common sensor signals such as current, voltage, and temperature measurements—often without the need for an external dedicated ADC chip.
8. What are the main upgrades of the STM32G030K6T6 over the STM32F0 series?
Compared to the STM32F0, the G030 series offers significant improvements: core frequency increases from 48 MHz to 64 MHz; Flash and SRAM capacities are larger (32 KB/8 KB vs. typical 16 KB/4 KB on the F0); the ADC is more advanced; and overall power management is more refined. It delivers better processing performance and energy efficiency at an entry‑level price, making it an ideal replacement and upgrade for F0 designs.
9. What development tools are needed for the STM32G030K6T6? Is it compatible with the previous STM32 ecosystem?
It is fully compatible with the STM32Cube ecosystem, including the free STM32CubeMX and STM32CubeIDE, along with the STM32CubeG0 firmware package. Code from STM32F0 or F1 projects can be largely reused, with the main adjustments being peripheral configuration and pin mapping. For rapid prototyping, the NUCLEO‑G031K8 or NUCLEO‑G070RB boards provide a highly compatible starting point for straightforward code migration.
10. If I later need more UARTs, USB, or CAN functionality, what upgrade options are available?
If you need more UART or SPI interfaces, you can upgrade to the pin‑compatible STM32G031K6T6 (2× UART, 2× SPI/I²C) with zero hardware changes. If you need USB‑C and CAN FD, choose the G071 series (e.g., G071K8T6 in LQFP‑32 or G071CBT6 in LQFP‑48). All these upgrades remain within the same STM32Cube ecosystem, allowing extensive code reuse and minimal migration effort.