512Mb, Multiple I/O Serial Flash Memory
READ MEMORY Operations
Table 26: Command/Address/Data Lines for READ MEMORY Commands – 4-Byte Address (Contin-
ued)
Notes 1 and 2 apply to entire table
Command Name (4-Byte Address)
DUAL
QUAD
FAST
DUAL OUTPUT INPUT/OUTPUT QUAD OUTPUT INPUT/OUTPUT
READ
03/13
–
READ
FAST READ
3B/3C
FAST READ
BB/BC
FAST READ
6B/6C
FAST READ
EB/EC
STR Mode
0B/0C
0D
DTR Mode
3D
BD
6D
ED
Quad SPI Protocol
Supported
No
–
Yes
No
–
No
–
Yes
Yes
Command Input
Address Input
Data Output
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
DQ[3:0]
–
–
–
–
–
–
1. Yes in the "Supported' row for each protocol indicates that the command in that col-
umn is supported; when supported, a command's functionality is identical for the entire
column regardless of the protocol. For example, a FAST READ functions the same for all
three protocols even though its data is input/output differently depending on the pro-
tocol.
Notes:
2. Command codes 13, 0C, 3C, BC, 6C, and EC do not need to be set up in the addressing
mode; they will work directly in 4-byte addressing mode.
3. A 4-BYTE FAST READ command is similar to 4-BYTE READ operation, but requires dum-
my clock cycles following the address bytes and can operate at a higher frequency (fC).
PDF: 09005aef84752721
n25q_512mb_1ce_3V_65nm.pdf - Rev. O 05/13 EN
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