GD25Q21 Datasheet, PDF (11/49 Pages) ELM Electronics – Uniform Sector Dual and Quad Serial Flash

GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash
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Table2. Commands
Command Name Byte 1 Byte 2
Byte 3
Byte 4 Byte 5 Byte 6 n-Bytes
Write Enable
06H
Write Disable
04H
Volatile SR Write Enable 50H
Read Status Register
Read Status Register-1
Write Status Register
05H (S7-S0)
35H (S15-S8)
01H (S7-S0) (S15-S8) ⁽¹⁾
(continuous)
(continuous)
Write Status Register-1
Read Data
Fast Read
Dual Output Fast Read
31H (S15-S8)
03H A23-A16
0BH A23-A16
3BH A23-A16
A15-A8
A15-A8
A15-A8
A7-A0
A7-A0
A7-A0
(D7-D0) (Next byte) (continuous)
dummy (D7-D0) (continuous)
dummy D7-D0 ⁽²⁾ (continuous)
Dual I/O Fast Read
Quad Output Fast Read
BBH A23-A8 ⁽³⁾
6BH A23-A16
A7-A0
M7-M0 ⁽³⁾
A15-A8
(D7-D0) ⁽²⁾
A7-A0
(continuous)
dummy (D7-D0) ⁽⁴⁾ (continuous)
Quad I/O Fast Read
EBH
A23-A0
M7-M0 ⁽⁵⁾
dummy ⁽⁶⁾
(D7-D0) ⁽⁴⁾
(continuous)
Quad I/O Word Fast
Read ⁽⁸⁾
E7H
A23-A0
M7-M0 ⁽⁵⁾
dummy ⁽⁷⁾
(D7-D0) ⁽⁴⁾
(continuous)
Continuous Read Reset
Page Program
Quad Page Program
Sector Erase
Block Erase (32K)
Block Erase (64K)
Chip Erase
Set Burst with Wrap
FFH
02H A23-A16
32H A23-A16
20H A23-A16
52H A23-A16
D8H A23-A16
C7/60H
77H
dummy ⁽¹⁰⁾
W7-W0
A15-A8
A15-A8
A15-A8
A15-A8
A15-A8
A7-A0
A7-A0
A7-A0
A7-A0
A7-A0
D7-D0 Next byte
D7-D0 ⁽⁴⁾
Program/Erase Suspend 75H
Program/Erase Resume 7AH
Deep Power-Down
B9H
Release From Deep
Power-Down,
And Read Device ID
ABH dummy
dummy
dummy
(DID7-
DID0)
(continuous)
Release From Deep
Power-Down
ABH
Manufacturer/
Device ID
90H dummy
dummy
00H
(MID7-
MID0)
(DID7-
DID0)
(continuous)
Manufacturer/
Device ID by Dual I/O
Manufacturer/
Device ID by Quad I/O
92H A23-A8
A7-A0,
M7-M0
(MID7-MID0)
(DID7-DID0
94H
A23-A0,
M7-M0
dummy ⁽¹¹⁾
(MID7- MID0)
(DID7-DID0)
(continuous)
(continuous)
Read Identification
9FH (M7-M0)
(JDID15-
JDID8)
(JDID7-
JDID0)
(continuous)
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Rev.1.1