NOR Flash memory chips serve as electronic components for program storage on e-cigarette solution boards, including how the device operates, how it responds to user inputs, and various operational logics. Additionally, it can record usage data and operational logs of the e-cigarette for intelligent feedback. As the trend towards smart e-cigarettes intensifies, NOR Flash has become increasingly indispensable.
1. Introduction to NOR Flash Memory Chips
NOR Flash is a type of flash memory based on the NOR gate structure, where NOR refers to the “not or” gate in logic circuits. NOR Flash features a parallel access structure, meaning each memory cell has an address and can be accessed directly, which provides NOR Flash with fast random access capabilities, making it suitable for executing code and reading critical data.
Compared to NAND Flash, NOR Flash has a lower storage density and higher cost but offers advantages such as fast read speeds and execute-in-place (XIP), making it suitable for applications that require low latency and high reliability for executing code and storing critical data. The application range of NOR Flash is extensive, including mobile phones, PCs, wearable electronic devices, as well as automotive, security, industrial control, base stations, and IoT devices.
2. Classification of NOR Flash
NOR Flash can be classified into three categories based on capacity:
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Below 32Mb is classified as small capacity, capable of simple code execution functions, mainly used in PC motherboards, set-top boxes, routers, ordinary Bluetooth headsets, AMOLED, TDDI, wearable devices, and security monitoring products;
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32Mb-128Mb is classified as medium capacity, capable of executing more complex program functions, such as noise reduction in TWS headsets;
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Above 128Mb is classified as large capacity, suitable for complex functions that require fast startup and high reliability, such as 5G base stations, industrial control, and automotive electronics.
3. NOR Flash Memory Chip ManufacturersThis article reviews NOR Flash manufacturers, listed in no particular order, and welcomes contributions and discussions.
1. Cypress
Cypress Semiconductor Corporation is a well-known electronic chip manufacturer, known in Chinese as 赛普拉斯, specializing in high-performance IC products for data transmission, remote communication, PCs, and military systems. In 2020, Infineon completed the acquisition of Cypress Semiconductor.
Cypress offers a variety of NOR Flash solutions, including HyperFlash, serial NOR, and parallel NOR (3.0 V and 1.8-V voltage), with capacities ranging from 8 Mb to 2 Gb.
2. Micron
Micron Technology, Inc. is a semiconductor manufacturing company based in Boise, Idaho, USA, primarily engaged in producing various semiconductor components, including dynamic random-access memory, flash memory, and solid-state drives; its main products include DRAM, NAND flash memory, CMOS image sensors, and other semiconductor components and memory modules.
Website:https://www.micron.com/
3. GigaDevice
GigaDevice Semiconductor Inc. (stock code 603986) is a leading fabless chip supplier globally, established in April 2005, headquartered in Beijing, China, with branches and offices in Shanghai, Shenzhen, Hefei, Xi’an, Chengdu, Suzhou, Hong Kong, and several countries and regions including the USA, South Korea, Japan, the UK, Germany, and Singapore, providing high-quality localized support services to customers worldwide.
In the SPI NOR Flash field, GigaDevice holds the second-largest market share globally and the largest in China, with cumulative shipments exceeding 23.7 billion units.
Website:https://www.gigadevice.com
4. Puyasemi
Puyasemi (Shanghai) Co., Ltd. was established in 2016, headquartered in Zhangjiang Hi-Tech Park, Shanghai, with sales and on-site application service and support centers in Shenzhen and South Korea, and a research and development center in Suzhou; it also has representative offices in Japan, the UK, Germany, and other locations. In August 2021, the company was listed on the Shanghai Stock Exchange’s Sci-Tech Innovation Board, stock code 688766.
The company’s main products currently include NOR Flash and EEPROM non-volatile memory chips, microcontroller chips, and analog products. These products are widely used in IoT, smartphones and peripherals, wearables, servers, optical modules, industrial control, automotive electronics, and security fields.
Website: https://www.puyasemi.com/
5. Macronix
Macronix International Co., Ltd. is a leading manufacturer of non-volatile memory integrated components, providing ROM read-only memory, NOR flash, and NAND flash solutions across a wide range of specifications and capacities.
Macronix leverages world-class R&D and manufacturing capabilities to provide the highest quality, innovative, and high-performance products for applications in consumer, communications, computing, industrial, automotive electronics, networking, and other fields.
Website: https://www.mxic.com
6. Winbond
Winbond Electronics Corporation is a professional memory integrated circuit company, providing comprehensive niche memory solution services globally, from product design, technology R&D, wafer manufacturing to self-branded marketing.
The core products include code storage flash memory, TrustME® secure flash, specialty DRAM, and mobile DRAM, making it the only manufacturer in Taiwan with both DRAM and Flash self-developed technologies.
Winbond utilizes its technological advantages and carefully planned capacity strategies to establish a highly flexible production system, maximizing the synergy generated by its product portfolio to fully meet diverse customer needs and implement the development of its own brand. Its products are applied in handheld device applications, consumer electronics, and computer peripheral markets, as well as in automotive and industrial electronics with high barriers and quality requirements.
Website: https://www.winbond.com/
7. Beijing Junzheng
Beijing Junzheng Integrated Circuit Co., Ltd. was established in 2005, rapidly industrializing SoC chip technology in the consumer electronics market based on innovative CPU design technology from its founding team. In May 2011, the company was listed on the Shenzhen Growth Enterprise Market (300223).
Junzheng continues to invest in computing technologies such as processor technology, multimedia technology, and AI technology, with its chips gaining a robust and broad market in smart video surveillance, AIoT, industrial and consumer electronics, biometric, and educational electronics.
In 2020, Junzheng completed the acquisition of ISSI in the USA. ISSI provides high-quality, high-reliability memory products for automotive, industrial, and medical fields, including SRAM, DRAM, NOR Flash, 2D NAND Flash, and eMMC, with customers worldwide. Junzheng will integrate its decades of accumulated computing technology with ISSI’s over thirty years of storage, analog, and interconnect technology to contribute to the development of automotive, industrial, and AIoT industries with its complete automotive-grade chip quality and service system.
Website: www.ingenic.com
8. Dongxin
Dongxin Semiconductor Co., Ltd. was established in 2014, headquartered in Shanghai, with subsidiaries or branches in Shenzhen, Nanjing, Hong Kong, and South Korea, aiming to become a leading storage chip design company serving global customers.
As a fabless chip company, Dongxin Semiconductor possesses independent intellectual property rights, focusing on the R&D, design, and sales of medium and small capacity NAND/NOR/DRAM chips, and is one of the few domestic companies that can provide NAND/NOR/DRAM design processes and product solutions simultaneously.
Website: http://www.dosilicon.com/
9. Hengshuo
Hengshuo Semiconductor (Hefei) Co., Ltd. was established in 2015, focusing on the R&D, design, and sales of storage chips and MCU chips. The company was listed on the Shanghai Stock Exchange’s Sci-Tech Innovation Board on August 29, 2022, stock code 688416.
The company’s current main products include NOR Flash memory chips and general-purpose 32-bit MCU chips based on the Arm® Cortex®-M0+ core architecture. Additionally, the company is committed to developing AI chips for terminal inference based on NOR flash technology and providing complete solutions for edge computing.
Website: https://www.zbitsemi.com/
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