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M29W800B90N5TR Datasheet(PDF) 7 Page - STMicroelectronics |
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M29W800B90N5TR Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 33 page  Address Range (x8) Address Range (x16) A18 A17 A16 A15 A14 A13 A12 00000h-03FFFh 00000h-01FFFh 0 0 0 0 0 0 X 04000h-05FFFh 02000h-02FFFh 0 0 0 0 0 1 0 06000h-07FFFh 03000h-03FFFh 0 0 0 0 0 1 1 08000h-0FFFFh 04000h-07FFFh 0 0 0 0 1 X X 10000h-1FFFFh 08000h-0FFFFh 0 0 0 1 X X X 20000h-2FFFFh 10000h-17FFFh 0 0 1 0 X X X 30000h-3FFFFh 18000h-1FFFFh 0 0 1 1 X X X 40000h-4FFFFh 20000h-27FFFh 0 1 0 0 X X X 50000h-5FFFFh 28000h-2FFFFh 0 1 0 1 X X X 60000h-6FFFFh 30000h-37FFFh 0 1 1 0 X X X 70000h-7FFFFh 38000h-3FFFFh 0 1 1 1 X X X 80000h-8FFFFh 40000h-47FFFh 1 0 0 0 X X X 90000h-9FFFFh 48000h-4FFFFh 1 0 0 1 X X X A0000h-AFFFFh 50000h-57FFFh 1 0 1 0 X X X B0000h-BFFFFh 58000h-5FFFFh 1 0 1 1 X X X C0000h-CFFFFh 60000h-67FFFh 1 1 0 0 X X X D0000h-DFFFFh 68000h-6FFFFh 1 1 0 1 X X X E0000h-EFFFFh 70000h-77FFFh 1 1 1 0 X X X F0000h-FfFFFh 78000h-7FFFFh 1 1 1 1 X X X Table 3B. M29W800B Block Address Table Instructions Seven instructions are defined to perform Read Array, Auto Select (to read the ElectronicSignature or Block Protection Status), Program, Block Erase, Chip Erase, Erase Suspend and Erase Resume. The internal P/E.C. automatically handles all tim- ing and verification of the Program and Erase operations. The Status Register Data Polling, Tog- gle, Error bits and the RB output may be read at any time, during programming or erase, to monitor the progress of the operation. Instructions are composed of up to six cycles. The first two cycles input a Coded sequence to the Command Interfacewhich is common to all instruc- tions (see Table 8). The third cycle inputs the instruction set-up com- mand. Subsequent cycles output the addressed data, Electronic Signature or Block Protection Status for Read operations. In order to give addi- tional data protection, the instructions for Program and Block or Chip Erase require further command inputs. For a Program instruction, the fourth com- mand cycle inputs the address and data to be programmed. For an Erase instruction (Block or Chip), the fourth and fifth cycles input a further Coded sequence before the Erase confirm com- mand on the sixthcycle. Erasure of a memory block may be suspended, in order to read data from another block or to program data in another block, and then resumed. When power is first applied or if VCC falls below VLKO, the command interface is reset to Read Array. 7/33 M29W800T, M29W800B |
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