Follow and star our official account to access exciting content directly.
Introduction
Last time (2020.10.28), I logged into the Lichuang Mall and searched for stm32f103c8t6, the unit price was around 15, and for 100 pieces, the price was less than 13.
On 2021.1.13, I logged in again and searched for stm32f103c8t6, and the price skyrocketed to over 34.
We really need to consider domestic alternatives for microcontroller models!
Speaking of MCUs, ST’s (STMicroelectronics) STM32 microcontrollers have sold billions over the past decade, dominating nearly 50% of the domestic market. Using STM32 microcontrollers has become a standard skill for electronic engineers. However, the supply tightness in the second half of 2018 and the ZTE incident have served as a wake-up call for hardware engineers. If one day we must replace STM32 microcontrollers, which domestic chips can be alternatives?
Beijing GigaDevice – GD32 Series
GD32 is a mainstream choice in the field of 32-bit general-purpose MCUs in China, with over 200 million units shipped, more than 10,000 users, and over 300 models across 20 series, maintaining a leading position in market coverage. GD32 uses the Cortex-M3 core and is fully compatible with the same models of STM32, making replacement convenient, with a higher main frequency.
GD32F103 is an early product of GD, while GD32E103 and GD32F303 are upgrades and optimizations of GD32F103. Although the cores are different, the general peripherals rarely involve the core part, so in urgent situations, ST’s library can be used for development.
Shanghai Lingshu Microelectronics – MM32 Series
The MM32 series is based on ARM Cortex-M0 and Cortex-M3 cores, including: MM32F series for the general high-performance market, MM32L series for ultra-low power and safety applications, MM32W series with various wireless connectivity features, MM32SPIN series dedicated to motor drive and control, and OTP-type MM32P series, all of which are fully compatible with ST in terms of pins and models, resulting in very low replacement costs.
Huada Semiconductor – HC32 Series
The HC32 series, backed by a state-owned enterprise, is based on ARM Cortex-M0+ and Cortex-M4 cores, including the HC32L series for ultra-low power applications and the HC32M series for motor application markets, as well as the cost-effective HC32F series for the general market, which is pin-compatible with ST’s corresponding products and can be directly replaced.
CETC (China Electronics Technology Group Corporation)
The 32-bit MCU products of CETC can replace the STM32 F103, F030, F031, and F051 series in bulk. Based on the ARM architecture, it covers eight series of products with Cortex-M0, M3, and M4 cores, with hardware pins compatible with STM32 P2P. The software adopts a register-level compatible design, so programs already developed using ST series MCUs can be directly burned into the corresponding models of CETC MCUs without excessive modifications.
The Artery AT32F403A/F407/F413/F415/F421 series can replace the STM32 F030, F303, F103, F107, F072, F401, and F411 series in bulk. Its hardware pins are P2P compatible with STM32, and the software is highly compatible. Due to the significant improvements in performance compared to STM32 in terms of core, SRAM, peripherals, etc., AT32 can replace multiple STM32 chips. Additionally, it has unique security and secondary development features: security Lib, and a wider operating temperature range: -40~105 degrees.
CMSemicon
The high-performance, low-power, and highly integrated MCUs from CMSemicon can replace the STM32F030/031 series, STM32G030/031 series, and STM32L031/051 series in bulk.
Hangshun
Hangshun has mass-produced MCU products based on ARM Cortex-M0 and Cortex-M3 cores, including: the HK32F103 family for the general high-performance market, the HK32F030/031/03X family, and the EEPROM memory family. The ultra-low power 7nA and safety application HK32L family, as well as the HK32W/B family with various wireless connectivity features, will be launched in 2019 to meet diverse customer needs.
Domestic chips have a long way to go
The market share of domestic chips in the MCU market is around 2%, which is very low, and there is still great room for improvement. The rise of domestic chip manufacturers represented by GD32 is bound to impact ST, but we must also see the gap between ST and us, including incomplete product lines, and product performance and stability that cannot fully match ST. We will see how much market share can be captured in the next five years.
Link:https://baijiahao.baidu.com/s?id=1632676931357810668&wfr=spider&for=pc
Link: https://mp.weixin.qq.com/s/xeFz-7mI_TUq3I8cjMtB2Q
| This article is organized to disseminate related technology, and the copyright belongs to the original author. |
| If there is any infringement, please contact us for deletion. |
Previous great articles collection (click the underline to read)
How to replace STM32 with GD32?
I have studied STM32 for a long time, but I still can’t do projects.
STM32: It’s that simple to go from a novice to an expert!
If you find the article good,sharing it is also our motivation to continue updating.
5T resource giveaway!Including but not limited to:C/C++, Linux, Python, Java, PHP, artificial intelligence, PCB, FPGA, DSP, LabVIEW, microcontrollers, etc.!
Reply “More Resources” in the official account to get it for free, we look forward to your attention~
