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29F400C-90 Datasheet(PDF) 7 Page - Macronix International |
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29F400C-90 Datasheet(HTML) 7 Page - Macronix International |
7 / 42 page 7 P/N:PM1200 MX29F400C T/B REV. 1.0, DEC. 20, 2005 Pins CE# OE# WE# A0 A1 A6 A9 Q0 ~ Q15 Mode Read Silicon ID L L H L L X V ID(2) C2H (Byte mode) Manufacture Code(1) 00C2H (Word mode) Read Silicon ID L L H H L X V ID(2) 23H/ABH (Byte mode) Device Code(1) 2223H/22ABH (Word mode) Read L L H A0 A1 A6 A9 D OUT Standby H XXXXXX HIGH Z Output Disable L H H XXXX HIGH Z Write L H L A0 A1 A6 A9 D IN(3) Sector Protect without 12V L H L X X L H X system (6) Chip Unprotect without 12V L H L X X H H X system (6) Verify Sector Protect/Unprotect L L H X H X H Code(5) without 12V system (7) Reset X XXXXXX HIGH Z TABLE 2. MX29F400C T/B BUS OPERATION NOTES: 1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 1. 2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V. 3. Refer to Table 1 for valid Data-In during a write operation. 4. X can be VIL or VIH. 5. Code=00H/XX00H means unprotected. Code=01H/XX01H means protected. A17~A12=Sector address for sector protect. 6. Refer to sector protect/unprotect algorithm and waveform. Must issue "unlock for sector protect/unprotect" command before "sector protect/unprotect without 12V system" command. 7. The "verify sector protect/unprotect without 12V system" is only following "Sector protect/unprotect without 12V system" command. Note that the Erase Suspend (B0H) and Erase Resume (30H) commands are valid only while the Sector Erase operation is in progress. Either of the two reset com- mand sequences will reset the device(when applicable). COMMAND DEFINITIONS Device operations are selected by writing specific address and data sequences into the command register. Writing incorrect address and data values or writing them in the improper sequence will reset the device to the read mode. Table 1 defines the valid register command sequences. |
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