_ electronic memory part (C _ MOS) CMOS
(CMOS memory IC) in terms of long-term performance
Researcher and author: Dr. Afshin Rashid
Note: CMOS electronic memory chips, read-only memory chips CMOS are programmable and electrically erasable, which can be erased and reprogrammed in blocks rather than one byte at a time. He poured.
Since chips electronic memory (C_Mouse) CMOS are non-volatile, to preserve The information itself does not need a constant power supply. chips CMOS electronic memory chips very fast access time, low energy consumption and relative immunity to They provide a strong shock or vibration. Their lifespan is approximately 100,000 write cycles - a fact that CMOS electronic memory (CMOS) chips making a> unsuitable for use as main computer memory. Normally, CMOS electronic memory chips 14> They are used in portable or compact devices such as digital cameras, mobile phones, pagers and scanners. chips chips CMOS electronic memory (C_Mouse) in terms of Density, boot block size, number of words, bits per word, gate technology and special features vary. The capacity density of the chip is in bits. Boot block size is a secure block used to store boot codes. The number of words is equal to the number of rows that each store one word of memory and are connected to a word line for addressing. Bits per word are the number of columns each connected to a sense/write circuit. Some flash memory chips support NAND or serial access gate technology. Other devices support NOR or random access gate technology.
in terms of special features, CMOS electronic memory chips chips Can be read in bulk or page by page. CMOS electronic memory chips that provide read-while-write (RWW) functionality, They can be read and written to at the same time.
choicechips CMOS electronic memory need to analyze performance characteristics Such as access time, data retention, endurance, power supply voltage and operating temperature. Access time is measured in nanoseconds (ns), indicates the speed of the memory and represents the cycle that starts when the CPU sends a request to the memory and when It ends when the CPU receives the requested data. Data retention is the number of years the chips can retain data without reloading. Endurance is the maximum number of read/write cycles the chips can support. Supply voltages from -5 V to 5 V and including intermediate voltages such as -4.5 V, -3.3 V, -3 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V and 3.6 V. Some CMOS electronic memory chips support a certain temperature range and have mechanical specifications. and are electric, which is suitable for commercial or industrial applications.
- Researcher and author: Dr. Afshin Rashid
Specialized doctorate in nano-microelectronics