With the rapid development of the Internet of Things, all major MCU vendors have focused their attention on 32-bit MCUs. Will the current mainstream 8-bit MCUs eventually withdraw from the market? 32-bit MCUs will become the absolute mainstream of the market in the Internet of Things era?
The IC Insights research report shows that the global MCU market reached US$16.8 billion in 2015, up 5.6% from last year. The shipments were 25.5 billion units, up 12.4% from last year. It is expected that the global MCU market will exceed 30 billion units in 2016. turn off. Among them, the global 32-bit MCU shipments in 2015 exceeded the total of 4/8-bit MCU and 16-bit MCU shipments, and should maintain a high growth rate of around 30% in the next few years.
Global MCU market size and shipments 
Global 32-bit MCU market share
IHS research shows that the global microcontroller (MCU) market for IoT applications is expected to grow at a compound annual growth rate (CAGR) of 11%, from $1.7 billion in 2014 to $2.8 billion in 2019. scale. Popular applications of the Internet of Things Smart cars, smart home appliances, wearable devices, virtual reality devices, drones and other products not only need a large number of MCU chip support, but also increase the hardware processing capacity requirements will further increase the market share of 32-bit MCU.
32-bit MCU is unstoppable
In the past two years, the consolidation and acquisition of the semiconductor industry has brought drastic changes to the MCU. On March 2, 2015, after NXP announced that it acquired Freescale as the second-largest supplier in the MCU market for approximately $11.8 billion, in less than two months, Microchip also quickly climbed its rankings through the acquisition of Atmel. Third, Japan’s Renesas and NEC Electronics ranked first after the merger in 2010. Faced with the new demands of the Internet of Things, MCU vendors are also actively responding.
Top 10 MCU vendors in 2015
Popular applications of the Internet of Things Intelligent applications of intelligent parking systems such as automatic parking, advanced cruise control, and collision avoidance systems require higher performance 32-bit MCUs. In addition, new applications in the Internet of Things, such as medical electronic products (such as smart blood glucose machines, electronic blood pressure monitors, etc.), personal health monitoring products (such as smart bracelets, smart watches, smart clothes, heart rate belts, etc.) require low power consumption. Long-term, wireless communication products must also rely on 32-bit MCUs.
The working frequency of 32-bit MCUs is mostly between 100~350MHz, which has better performance and can meet the data processing capability requirements of many IoT applications. The core accounts for only 5%-7% of the die area, and the price is greatly reduced. The compatibility is very high. By optimizing in process and architecture, 32-bit MCUs will be able to balance the low power and high performance requirements of the Internet of Things. In the future, MCU vendors will introduce new 32-bit low-power MCUs with integrated sensors and wireless modules for large wireless sensor nodes.
As a leading automotive semiconductor supplier, Renesas Electronics has focused on industry and the Internet of Things in the past two years. Not only has the RH850 series of 32-bit MCUs using the 40-nanometer process for automotive electronics been introduced, but 32-bit MCUs for the Internet of Things have also been introduced.
STMicroelectronics also continued to expand its product line after the market share of 32-bit MCUs in 2010 exceeded 8 MCUs for the first time. “Before 2010, we had 8-bit microcontrollers, 16-bit microcontrollers and 32-bit microcontrollers, but now 32-bit microcontrollers are our main product.†STMicroelectronics Vice President Microcontroller Products General Manager Michel Buffa said.
In addition to international companies, MCU manufacturers who have multiple licenses for ARM Cortex-M3 and Cortex-M0 cores have seen changes in the global 3MCU market, such as industrial control, sensing control, and IoT master control. The application also introduced a 32-bit MM32 custom MCU.
So 32-bit MCU is really the absolute mainstream of the Internet of Things market?
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