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AT45DB642D-TU Datasheet(PDF) 41 Page - ATMEL Corporation |
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AT45DB642D-TU Datasheet(HTML) 41 Page - ATMEL Corporation |
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41 / 55 page  41 3542F–DFLASH–09/06 AT45DB642D 22.1 Buffer Write 22.2 Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page) 23. Read Operations The following block diagram and waveforms illustrate the various read sequences available. SI or I/O7 - I/O0 (INPUT) CMD Completes writing into selected buffer CS X X···X, BFA10-8 BFA7-0 n n+1 Last Byte BINARY PAGE SIZE 14 DON'T CARE + BFA9-BFA0 SI or I/O7 - I/O0 (INPUT) CMD PA12-5 PA4-0, XXX CS Starts self-timed erase/program operation XXXX XX Each transition represents 8 bits n = 1st byte read n+1 = 2nd byte read BINARY PAGE SIZE A22-A10 + 10 DON'T CARE BITS FLASH MEMORY ARRAY PAGE (1024/1056 BYTES) BUFFER 2 (1024/1056 BYTES) BUFFER 1 (1024/1056 BYTES) I/O INTERFACE MAIN MEMORY PAGE TO BUFFER 1 MAIN MEMORY PAGE TO BUFFER 2 MAIN MEMORY PAGE READ BUFFER 1 READ BUFFER 2 READ SO I/O7 - I/O0 |
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