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Please refer to data sheets for detailed information. To select how PB3 and PB4 should be used, the jumpers labeled PB3 and PB4 must be set correctly. Description. The AT45DBD is a volt, dual-interface sequential access Flash memory ideally suited for a wide variety of digital voice-, image-, program. Explore the latest datasheets, compare past datasheet revisions, and confirm part Datasheet for AT45DBD-CNUReel AT45DBD-CNU-SL

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The first 13 bits PA12 – PA0 of the bit address sequence specify which page of the main memory at45db642 to read, and the last 11 bits BA10 – BA0 of the bit address sequence specify the starting byte address within the page. Being able to reprogram the Sector Protection Register with the sector protection enabled allows the user to temporarily disable the sector protection to an individual sector rather than dis- abling sector protection completely.


The device operates from a single power supply, 2. To enable the sector protection using the For the AT45DBD, the four bits are The decimal value of these four binary bits does not equate datasheey the device density; the four bits represent a combinational code relating to differing densities of DataFlash devices Reading the Sector Lockdown Register The Sector Lockdown Register can be read to determine which sectors in the memory array are permanently locked down.


The device density is indicated using bits and 2 of the status register. Memory Array To provide optimal flexibility, the memory array of the AT45DBD is divided into three levels of granularity comprising of sectors, blocks, and pages.

Datasheet: AT45DB642D

Output Test Load The DataFlash is designed to Copy your embed code and put on your site: Deep Power-down, the device will return to the normal standby mode. Download datasheet 2Mb Share this page.

Command Sector Lockdown Figure Page 39 Utilizing the At45db642e To take advantage of the RapidS function’s ability to operate at higher clock frequencies, a full clock cycle must be used to transmit data back and forth across the serial bus.

Please contact Atmel for the estimated availability of devices with the fix. Master clocks in BYTE a.

The Block Erase function is not affected by the Chip Erase issue. Standard parts are shipped with the page size set to bytes. Page 21 Figure Elcodis is a trademark of Elcodis Company Ltd. Page 35 Table Main Memory Page to Buffer 1 or 2 Compare 7.

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AT45DBD-CNU Price & Stock | DigiPart

The Sector Protection Register can be reprogrammed while the sector protection enabled or dis- abled. Auto Page Rewrite Group C commands consist of: Fixed tim- ing is not recommended. Other algorithms can be used to rewrite portions of the Flash array. PUW Changed t from max The algorithm will be repeated sequentially for each page within the entire array. Parts will have a or SL marked on them Page 31 Table Page 53 Packaging Information Utilizing the RapidS To take advantage of the RapidS function’s ability to operate at higher clock frequencies, a full clock cycle must be used to transmit data back and forth across the serial bus.

The user is able to configure these parts to a byte page size if desired. For Atmel and some other manufacturersthe Manufacturer ID data is comprised of only one byte.

No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or ddatasheet connection with the sale of Atmel products.