512Mb, Multiple I/O Serial Flash Memory
READ MEMORY Operations
READ MEMORY Operations Timing – Double Transfer Rate
Figure 20: FAST READ Command – DTR
Extended
C
LSB
DQ0
MSB
Command
A[MAX]
D
OUT
MSB
LSB
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
A[MIN]
0
7
8
C
x
DQ1
High-Z
Dual
C
Dummy cycles
0
3
4
C
x
LSB
DQ[1:0]
MSB
Command
A[MAX]
A[MIN]
D
OUT
MSB
Dummy cycles
LSB
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
D
OUT
Quad
C
0
1
2
C
x
LSB
DQ[3:0]
MSB
Command
A[MAX]
A[MIN]
D
OUT
MSB
Dummy cycles
LSB
D
OUT
D
OUT
D
OUT
Don’t Care
Note:
1. For extended protocol, C
x
= 7 + (A[MAX] + 1)/2.
For dual protocol, C
x
= 3 + (A[MAX] + 1)/4.
For quad protocol, C
x
= 1 + (A[MAX] + 1)/8.
PDF: 09005aef84752721
n25q_512mb_1ce_3V_65nm.pdf - Rev. O 05/13 EN
50
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