n25q256 Numonyx, n25q256 Datasheet - Page 79

• Manufacturer Part Number: n25q256
• Description: 256-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

N25Q256 - 3 V
9.1.14
DQ0
DQ1
DQ3
DQ2
C
S
Quad Input/Output Fast Read using 4 Byte Address (QIOFR4BYTE)
The Quad Input/Output Fast Read using 4 bytes address (QIOFR4BYTE) instruction is very
similar to the Dual Input/Output Fast Read using 4 bytes address (DIOFR4BYTE), except
that the address bits are shifted in on four pins (pin DQ0, pin DQ1, pin W/VPP/DQ2 and pin
HOLD/DQ3 (1)) instead of only one.
Reset functionality is available instead of Hold in devices with a dedicated part number as
explained under Ordering Information.
Figure 31. Quad Input/Output Fast Read using 4 Byte Address Instruction and Data-
0
‘1’
Don’t Care
Don’t Care
1
2
Instruction
3
Out Sequence
4
5
6
7
A31-24 A23-16 A15-9
30
31
28
29
8
26
24
25
27
9 10 11 12 13 14
22
23
32-Bit Address
20
21
18
19
16
17
14
15
12
13
Micron Technology, Inc., reserves the right to change products or specifications without notice.
10
11
8
9
5
6
7
A7-0
4
15 16
1
2
3
0
Dummy (ex.: 10)
23 24 25
©2010 Micron Technology, Inc. All rights reserved.
Byte 1
26
6
4
5
7
IO switches from Input to Output
27
2
0
1
3
28
Byte 2
6
4
5
7
29
1
2
3
0
Instructions
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