Owner manual

56
AT45DB021E [PRELIMINARY DATASHEET]
8789B–DFLASH–11/2012
Figure 25-4. Main Memory Page Read (Opcode D2h)
Figure 25-5. Buffer Read (Opcode D4h)
Figure 25-6. Buffer Read – Low Frequency (Opcode D1h)
SCK
CS
SI
SO
MSB MSB
2 3 1 0
1 1 0 1 0 0 1 0
6 7 5 4 10 11 9 8 12 63 66 67 65 64 62 33 34 31 32 29 30 68 71 72 70 69
Opcode
A A A A A A A A A
MSB
X X X X X X
MSB MSB
D D D D D D D D D D
Address Bits 32 Dummy Bits
Data Byte 1
High-impedance
SCK
CS
SI
SO
MSB MSB
2 3 1 0
1 1 0 1 0 1 0 0
6 7 5 4 10 11 9 8 12 39 42 43 41 40 37 38 33 36 35 34 31 32 29 30 44 47 48 46 45
Opcode
X X X X A A A X X
MSB
X X X X X X X X
MSB MSB
D D D D D D D D D D
Address Bits
Binary Page Size = 16 Dummy Bits + BFA7-BFA0
Standard DataFlash Page Size =
15 Dummy Bits + BFA8-BFA0
Dummy Bits
Data Byte 1
High-impedance
SCK
CS
SI
SO
MSB MSB
2 3 1 0
1 1 0 1 0 0 0 1
6 7 5 4 10 11 9 8 12 37 38 33 36 35 34 31 32 29 30 39 40
Opcode
X X X X A A A X X
MSB MSB
D D D D D D D D D D
Data Byte 1
High-impedance
Address Bits
Binary Page Size = 16 Dummy Bits + BFA7-BFA0
Standard DataFlash Page Size =
15 Dummy Bits + BA8-BFA0