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M28W640FCT 数据表(PDF) 24 Page - STMicroelectronics |
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M28W640FCT 数据表(HTML) 24 Page - STMicroelectronics |
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24 / 77 page ![]() Command interface M28W640FCT, M28W640FCB 24/77 Table 5. Read Electronic signature(1) 1. RP = VIH. Code Device E G W A0 A1 A2-A7 A8-A21 DQ0-DQ7 DQ8- DQ15 Manufacture Code VIL VIL VIH VIL VIL 0 Don't Care 20h 00h Device Code M28W640 FCT VIL VIL VIH VIH VIL 0 Don't Care 48h 88h M28W640 FCB VIL VIL VIH VIH VIL 0 Don't Care 49h 88h Table 6. Read Block Lock signature Block Status E G W A0 A1 A2-A7 A8-A11 A12-A21 DQ0 DQ1 DQ2- DQ15 Locked Block VIL VIL VIH VIL VIH 0 Don't Care Block Address 1 0 00h Unlocked Block VIL VIL VIH VIL VIH 0 Don't Care Block Address 0 0 00h Locked- Down Block VIL VIL VIH VIL VIH 0 Don't Care Block Address X (1) 1. A Locked-Down Block can be locked "DQ0 = 1" or unlocked "DQ0 = 0"; see Block Locking section. 1 00h |
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