at25df641 ATMEL Corporation, at25df641 Datasheet - Page 11

• Manufacturer Part Number: at25df641
• Description: At25df641 64-megabit 2.7-volt Minimum Spi Serial Flash Memory
• Manufacturer: ATMEL Corporation

Figure 7-4.
3680B–DFLASH–2/08
SCK
SIO
SO
CS
Dual-Output Read Array
HIGH-IMPEDANCE
MSB
0
0
0
1
0
2
OPCODE
the device will continue reading back at the beginning of the array (000000h). No delays will be
incurred when wrapping around from the end of the array to the beginning of the array.
Deasserting the CS pin will terminate the read operation and put the SO and SIO pins into a
high-impedance state. The CS pin can be deasserted at any time and does not require that a full
byte of data be read.
0
3
1
4
0
5
1
6
1
7
MSB
A
8
A
9
ADDRESS BITS A23-A0
A
10 11
A
A
12
A
A
29 30
A
A
31 32
MSB
X
X
33
DON'T CARE
X
34
AT25DF641 [Preliminary]
X
35
X
36
X
37 38
X
X
39
MSB
D 6
D 7
DATA BYTE 1
40
OUTPUT
D 4
D 5
41
D 2
D 3
42 43
D 0
D 1
MSB
D 6
D 7
DATA BYTE 2
44
OUTPUT
D 4
D 5
45
D 2
D 3
46
D 0
D 1
47 48
MSB
D 6
D 7
D 4
D 5
11