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F49L004BA-90N Datasheet(PDF) 10 Page - Elite Semiconductor Memory Technology Inc. |
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F49L004BA-90N Datasheet(HTML) 10 Page - Elite Semiconductor Memory Technology Inc. |
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10 / 46 page  EFST preliminary F49L004UA / F49L004BA Elite Flash Storage Technology Inc. Publication Date : Aug. 2003 Revision: 0.2 10/46 Table 5. F49L004UA/ F49L004BA 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 ----- ----- Program 4 555H AAH 2AAH 55H 555H A0H PA PD Chip Erase 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H Sector Erase 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 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. Address bits A18–A11 are don’t cares. 4. No command cycles required when reading array data. 5. 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). 6. 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. 7. The Erase Resume command is valid only during the Erase Suspend mode. Table 6. F49L004UA/ F49L004BA Auto-Select Command 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 4 555H AAH 2AAH 55H 555H 90H X04H 7FH - - - - 4 555H AAH 2AAH 55H 555H 90H X08H 7FH - - - - 4 555H AAH 2AAH 55H 555H 90H X0CH 7FH - - - - Manufacture ID 4 555H AAH 2AAH 55H 555H 90H X00H 8CH - - - - Device ID, Upper boot 4 555H AAH 2AAH 55H 555H 90H X01H B5H - - - - Device ID, Bottom boot 4 555H AAH 2AAH 55H 555H 90H X01H B6H - - - - Sector Protect Verify 4 555H AAH 2AAH 55H 555H 90H (SA) x02H 00H 01H - --- Notes : 1. The fourth cycle of the auto-select command sequence is a read cycle. 2. For Sector Protect Verify operation: If read out data is 01H, it means the sector has been protected. If read out data is 00H, it means the sector is still not being protected. |
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