64-megabit 2.7-volt Only Dual-interface DataFlash AT45DB642

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Detailed Bit-level Read Timing – SPI Mode 0 (Continued)Main Memory Page Read (Opcode: D2H)CSSCK 1 2 3 4 5 60 61 62 63 64 65 66 67tSUCOMMAND OPCODESI 1 1 0 1 0 X X XXXSOHIGH IMPEDANCEtVDATA OUTD7 D6 D5MSBD4Buffer Read (Opcode: D4H or D6H)CSSCK 1 2 3 4 5 36 37 38 39 40 41 42 43tSUCOMMAND OPCODESI 1 1 0 1 0 X X XXXSOHIGH IMPEDANCEtVDATA OUTD7 D6 D5MSBD4Status Register Read (Opcode: D7H)CSSCK 1 2 3 4 5 6 7 8 9 10 11 12 16 17tSUCOMMAND OPCODESI 1 1 0 1 0 1 1 1SOHIGH IMPEDANCEtVD7 D6 D5MSBSTATUS REGISTER OUTPUTD4D1 D0 D7LSB MSB26 AT45DB6421638F–DFLSH–09/02
AT45DB642Detailed Bit-level Read Timing – SPI Mode 3Continuous Array Read (Opcode: E8H)CSSCK 1 2 63 64 65 66 67tSUSI 0 1 X X XSOHIGH IMPEDANCEtVDATA OUTLSB MSBD7 D6 D5 D2 D1 D0 D7 D6 D5BIT 8447OFPAGE nBIT 0OFPAGE n+1Burst Array Read with Synchronous Delay (Opcode: E9H)CSSCK1 2 63 64 65 66 1 2 31 32 33tSU32 CLOCKSSI 0 1 X X XSOHIGH IMPEDANCEtVD7DATA OUTD6LSBMSBD1 D0 Don't CareD7 D6BIT 8447OFPAGE nBIT 0OFPAGE n+11638F–DFLSH–09/0227
Page 2: However, the use of either interfac
Page 5 and 6: AT45DB642As with the Continuous Arr
Page 7: AT45DB642BUFFER TO MAIN MEMORY PAGE
Page 10 and 11: This gives the DataFlash the abilit
Page 12 and 13: Table 1. Read CommandsCommand SCK/C
Page 14 and 15: Absolute Maximum Ratings*Temperatur
Page 16 and 17: AC Characteristics - Parallel Inter
Page 18 and 19: Reset Timing (Inactive Clock Polari
Page 20 and 21: Read OperationsThe following block
Page 23 and 24: AT45DB642Detailed Bit-level Read Ti
Page 25: AT45DB642Detailed Bit-level Read Ti
Page 29 and 30: AT45DB642Detailed Parallel Read Tim
Page 31 and 32: AT45DB642Detailed Parallel Read Tim
Page 33 and 34: AT45DB642Figure 1. Algorithm for Pr
Page 35 and 36: AT45DB642Ordering Informationf SCKI
Page 37: Atmel HeadquartersCorporate Headqua

64-megabit 2.7-volt Only Dual-interface DataFlash AT45DB642

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