參數(shù)資料
型號: 69F1608
廠商: Maxwell Technologies, Inc
英文描述: 128 Megabit (16M x 8-Bit) Flash Memory Module
中文描述: 128兆位(16米x 8位)閃存模塊
文件頁數(shù): 26/33頁
文件大小: 817K
代理商: 69F1608
26
All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
128 Megabit (16Mx 8-Bit) Flash Memory Module
69F1608
01.07.05 REV 2
BLOCK ERASE
The Erase operation can erase on a block (8K Byte) basis. Block address loading is accomplished in two
cycles initiated by an Erase Setup command (60h). Only address A13 to A21 is valid while A9 to A12 is
ignored. The addresses of the block to be erased to FFh. The Erase Confirmcommand (D0h) following the
block address loading initiates the internal erasing process. This two-step sequence of setup followed by
execution ensures that memory contents are not accidentally erased due to external noise conditions. At the
rising edge of WE after the erase confirmcommand input, the internal write controller handles erase and
erase-verify. When the erase operation is completed, the Write Status Bit (I/O0) may be checked. Figure 27
details the sequence.
F
IGURE
27. B
LOCK
E
RASE
O
PERATION
READ STATUS
The device contains a Status Register which may be read to find out whether programor erase operation is
complete, and whether the programor erase operation completed successfully. After writing 70h command
to the command register, a read cycle outputs the contents of the Status Register to the I/O pins on the fall-
ing edge of CE or RE, whichever occurs last. This two line control allows the systemto poll the progress of
each device in multiple memory connections even when R/B pins are common-wired. RE or CE does not
need to be toggled for updated status. Refer to table 14 for specific Status Register definitions. The com-
mand register remains in Status Read mode until further commands are issued to it. Therefore, if the status
register is read during a randomread cycle, a read command (00h or 50h) should be given before sequential
page read cycle.
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69F1608_08 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:128 Megabit (16M x 8-Bit) Flash Memory Module
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