AT49F002A-55JI

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	FLASH
Technology:	FLASH
Memory Size:	2Mb (256K x 8)
Write Cycle Time - Word, Page:	50µs
Access Time:	55ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TC)
Mounting Type:	Surface Mount
Package / Case:	32-LCC (J-Lead)
Supplier Device Package:	32-PLCC
Base Part Number:	AT49F002

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AT49F002A-55JI application field and working principle：MemoryAT49F002A-55JI, also called AT49F002A-55JI Flash-EEPROM, is a Flash memory chip produced by STMicroelectronics. It was first released in the year 2000, and it is still a popular nonvolatile memory device today. This chip is part of the AT45 series and is based on Flash technology. It has a large storage space and comes in several memory configurations: 64K x 8, 128K x 8 and 256K x 8. It has a fast access time and can reach read/write speeds up to 15ns. The AT49F002A-55JI chip is a reliable nonvolatile memory device that can tolerate extreme temperatures, vibrations and many other harsh environmental conditions. AT49F002A-55JI is widely used in various embedded systems, medical devices, industrial applications, automotive technology, and other fields. It can be used for storing data, code and programs in embedded systems, or in medical devices for storing patient data or medical histories. AT49F002A-55JI is based on an EEPROM or Erasable Programmable Read-Only Memory. This technology consists of a floating-gate transistor where a charge formed on the floating gate can be used to store data. It can write and erase data without any physical contact with the chip. When a voltage higher than 5.5V is applied to the Write/Erase pin, it causes electrons to be injected into the floating gate. This allows the information to be written to the cell. To erase the data, the same voltage is applied but the direction of current is reversed. This causes the electrons to be injected into the drain and removed from floated gate. The AT49F002A-55JI also has a built-in CRC error detection circuit which allows it to detect errors in the data being stored. This helps ensure data integrity and reliability. Overall, the AT49F002A-55JI is a reliable and popular non-volatile memory device. It provides high speeds and large storage capacity. It is ideal for embedded systems, medical devices, automobiles, and other applications requiring a non-volatile memory chip.

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