AT45DB041A_01 Datasheet, PDF (23/28 Pages) ATMEL Corporation – 4-megabit 2.5-volt Only Serial DataFlasH

AT45DB041A
Detailed Bit-level Read Timing – SPI Mode 3 (Continued)
Main Memory Page Read (Opcode: D2H)
CS
SCK
SI
SO
1
2
3
4
5
61 62 63 64 65 66 67 68
tSU
COMMAND OPCODE
1
1
0
1
0
X
X
X
X
X
HIGH-IMPEDANCE
tV
DATA OUT
D7 D6 D5 D4
MSB
Buffer Read (Opcode: D4H or D6H)
CS
SCK
SI
SO
1
2
3
4
5
37 38 39 40 41 42 43 44
tSU
COMMAND OPCODE
1
1
0
1
0
X
X
X
X
X
HIGH-IMPEDANCE
tV
DATA OUT
D7 D6 D5 D4
MSB
Status Register Read (Opcode: D7H)
CS
SCK
SI
SO
1
2
3
4
5
6
7
8
9
10 11 12
17 18
tSU
COMMAND OPCODE
1
1
0
1
0
1
1
1
HIGH-IMPEDANCE
tV
STATUS REGISTER OUTPUT
D7 D6 D5 D4
MSB
D0 D7 D6
LSB MSB
23