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F49L400UA Datasheet(PDF) 10 Page - Elite Semiconductor Memory Technology Inc. |
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F49L400UA Datasheet(HTML) 10 Page - Elite Semiconductor Memory Technology Inc. |
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10 / 47 page  EFST F49L400UA/F49L400BA Elite Flash Storage Technology Inc. Publication Date : Sep. 2006 Revision: 1.1 10/47 Table 5. F49L400UA/F49L400BA Software Command Definitions 1st Bus Cycle 2nd Bus Cycle 3rd Bus Cycle 4th Bus Cycle 5th Bus Cycle 6th Bus Cycle Command Bus Cycles Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Reset (5) 1 XXXH F0H - - - - - - - - - - Read (4) 1 RA RD - - - - - - - - - - Word 4 555H AAH 2AAH 55H 555H A0H PA PD Program Byte 4 AAAH AAH 555H 55H AAAH A0H PA PD Word 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H Chip Erase Byte 6 AAAH AAH 555H 55H AAAH 80H AAAH AAH 555H 55H AAAH 10H Word 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA 30H Sector Erase Byte 6 AAAH AAH 555H 55H AAAH 80H AAAH AAH 555H 55H SA 30H Sector Erase Suspend (6) 1 XXXH B0H - - - - - - - - - - Sector Erase Resume (7) 1 XXXH 30H - - - - - - - - - - Auto-select See Table 6. Notes: 1. X = don’t care RA = Address of memory location to be read. RD = Data to be read at location RA. PA = Address of memory location to be programmed. PD = Data to be programmed at location PA. SA = Address of the sector. 2. Except Read command and Auto-select command, all command bus cycles are write operations. 3. The system should generate the following address patterns: 555H or 2AAH to address A10~A0 in word mode / AAAH or 555H to address A10~A-1 in byte mode. 4. Address bits A17–A11 are don’t cares. 5. No command cycles required when reading array data. 6. The Reset command is required to return to reading array data when device is in the auto-select mode, or if DQ5 goes high(while the device is providing status data). 7. The system may read and program in non-erasing sectors, or enter the auto-select mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 8. The Erase Resume command is valid only during the Erase Suspend mode. |
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