29F200-120 データシートの表示（PDF） - Alliance Semiconductor
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29F200-120 Datasheet PDF : 20 Pages
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Write program command sequence
(see below)
DATA poll device
Verify byte? NO
YES
Programming completed
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Write erase command sequence
(see below)
DATA polling or toggle bit
successfully completed
Erase complete
Chip erase command sequence Sector erase command sequence
×16 mode (address/command): ×16 mode (address/command):
5555h/AAh
5555h/AAh
2AAAh/55h
2AAAh/55h
Program command sequence
×16 mode (address/command):
5555h/AAh
2AAAh/55h
5555h/A0h
5555h/80h
5555h/AAh
2AAAh/55h
5555h/10h
5555h/80h
5555h/AAh
2AAAh/55h
Sector address/30h
Program address/program data
Optional multiple
sector erase commands†
Sector address/30h
Sector address/30h
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† The system software should check the status of DQ3 prior to and
following each subsequent sector erase command to ensure command
completion. The device may not have accepted the command if DQ3 is
high on second status check.
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