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M29W800AB120ZA6T Datasheet(PDF) 10 Page - STMicroelectronics |
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M29W800AB120ZA6T Datasheet(HTML) 10 Page - STMicroelectronics |
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10 / 33 page  M29W800AT, M29W800AB 10/33 Table 9. Instructions (1) Note: 1. Commands not interpreted in this table will default to read array mode. 2. A wait of tPLYH is necessary after a Read/Reset command if the memory was in an Erase or Program mode before starting any new operation (see Tables 15, 16 and Figure 11). 3. X = Don’t Care. 4. The first cycles of the RD or AS instructions are followed by read operations. Any number of read cycles can occur after the com- mand cycles. 5. Signature Address bits A0, A1, at VIL will output Manufacturer code (20h). Address bits A0 at VIH and A1, at VIL will output Device code. 6. Block Protection Address: A0, at VIL,A1 at VIH and A15-A18 within the Block will output the Block Protection status. 7. For Coded cycles address inputs A11-A18 are don’t care. 8. Optional, additional Blocks addresses must be entered within the erase timeout delay after last write entry, timeout statuscan be verified through DQ3 value (see Erase Timer Bit DQ3 description). When full command is entered, read Data Polli ng or Toggle bit until Erase is completed or suspended. 9. Read Data Polling, Toggle bits or RB until Erase completes. 10. During Erase Suspend, Read and Data Program functions are allowed in blocks not being erased. Mne. Instr. Cyc. 1st Cyc. 2nd Cyc. 3rd Cyc. 4th Cyc. 5th Cyc. 6th Cyc. 7th Cyc. RD (2,4) Read/Reset Memory Array 1+ Addr. (3,7) X Read Memory Array until a new write cycle is initiated. Data F0h 3+ Addr. (3,7) Byte AAAh 555h AAAh Read Memory Array until a new write cycle is initiated. Word 555h 2AAh 555h Data AAh 55h F0h AS (4) Auto Select 3+ Addr. (3,7) Byte AAAh 555h AAAh Read Electronic Signature or Block Protection Status until a new writ e cycle is initiated. See Note 5 and 6. Word 555h 2AAh 555h Data AAh 55h 90h PG Program 4 Addr. (3,7) Byte AAAh 555h AAAh Program Address Read Data Polling or Toggle Bit until Program completes. Word 555h 2AAh 555h Data AAh 55h A0h Program Data BE Block Erase 6 Addr. (3, 7) Byte AAAh 555h AAAh AAAh 555h Block Address Additional Block (8) Word 555h 2AAh 555h 555h 2AAh Data AAh 55h 80h AAh 55h 30h 30h CE Chip Erase 6 Addr. (3,7) Byte AAAh 555h AAAh AAAh 555h AAAh Note 9 Word 555h 2AAh 555h 555h 2AAh 555h Data AAh 55h 80h AAh 55h 10h ES (10) Erase Suspend 1 Addr. (3,7) X Read until Toggle stops, then read all the data needed from any Block(s) not being erased then Resume Erase. Data B0h ER Erase Resume 1 Addr. (3, 7) X Read Data Polling or Toggle Bits until Erase completes or Erase is suspended another time. Data 30h |
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