AT45DB642D-CNU-SL383

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	FLASH
Technology:	FLASH
Memory Size:	64Mb (1056 Bytes x 8192 pages)
Clock Frequency:	66MHz
Write Cycle Time - Word, Page:	6ms
Memory Interface:	SPI
Voltage - Supply:	2.7 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TC)
Mounting Type:	Surface Mount
Package / Case:	8-VDFN
Supplier Device Package:	8-CASON (6x8)

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AT45DB642D-CNU-SL383 Memory Application Field and Working PrincipleThe AT45DB642D-CNU-SL383 is a Flash memory device developed by Atmel Corporation, Use of this device allows system designers to create very compact designs, while providing faster access, re-programmability and low power consumption when compared to EEPROMs. The AT45DB642D-CNU-SL383 can be found in many consumer electronics and embedded control systems due to its large storage volume and wide operating range.

Application Fields

The AT45DB642D-CNU-SL383 is an ideal choice for embedded control engineers who require mass storage of program code, application data and other non-volatile information. Specifically, the AT45DB642D-CNU-SL383 is used in:

• Digital still cameras
• Netbooks
• GPS systems
• Robotics
• Smartphones
• Personal digital assistants
• Routers
• Point of sale terminals
• Medical equipment
• Communication systems

Developers of industrial control systems, home automation, wireless telecommunications and automotive applications are also turning to Flash memories for increased reliability, durability and design versatility.

Working Principle

The AT45DB642D-CNU-SL383 is a Flash memory device capable of storing up to 64Mbit of data. Its on-chip controller allows access to both the main Flash array, and to the in-memory SRAM buffer. The device contains a built-in read/write clock, allowing for higher transfer rates than would otherwise be possible. The internal SRAM buffer holds up to 264 bytes of data, enabling faster read and write times than traditional memories. The Flash memory array is divided into 2048 pages, each of which is 264 bytes in size. The data transfer rate of the Flash memory is determined by the clock frequency, with a maximum of 30MHz. The AT45DB642D-CNU-SL383 is capable of withstanding write/erase cycles up to 10,000 times, and retains data integrity for up to 20 years. The device also contains an on-board Cyclic Redundancy Check (CRC) circuit, which allows designers to ensure data integrity. The device is self-protecting, meaning that it can detect over-voltages and excessive temperatures, preventing unplanned shutdowns due to environmental conditions.The AT45DB642D-CNU-SL383 is also exceptionally low power consuming, with current consumption of less than 10 μA during standby and 30mA during active operation. This makes the device ideal for embedded environments that require extended battery life or low power consumption.

Conclusion

In conclusion, the AT45DB642D-CNU-SL383 is a powerful and reliable Flash memory device that is capable of storing up to 64Mbit of data. Its robust design and low power consumption make it an ideal choice for a variety of embedded and consumer applications, including digital still cameras, netbooks, GPS systems and more. The device\'s on-board CRC circuit and internal SRAM buffer ensure data integrity and faster read and write times, while its self-protective features add an extra layer of reliability.

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