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GD25B256D Datasheet(Arkusz danych) 54 Page - GigaDevice Semiconductor (Beijing) Inc.

Numer części GD25B256D
Szczegółowy opis  3.3V Uniform Sector Dual and Quad Serial Flash
Pobierz  82 Pages
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Producent  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Strona internetowa  http://www.gigadevice.com/
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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B256D
54
The Read Identification (RDID) command is terminated by driving CS# high at any time during data output. When CS# is
driven high, the device is in the Standby Mode. Once in the Standby Mode, the device waits to be selected, so that it can
receive, decode and execute commands.
Figure 62 Read Identification ID Sequence Diagram
7.31.
Program/Erase Suspend (PES) (75H)
The Program/Erase Suspend command
“75H”, allows the system to interrupt a page program or sector/block erase
operation and then read data from any other sector or block. The Write Status Register command (01H/31H/11H) and
Erase/Program Security Registers command (44H,42H) and Erase commands (20H, 52H, D8H, C7H, 60H) and Page
Program command (02H / 32H) are not allowed during Program suspend. The Write Status Register command
(01H/31H/11H) and Erase Security Registers command (44H) and Erase commands (20H, 52H, D8H, C7H, 60H) are not
allowed during Erase suspend. Program/Erase Suspend is valid only during the page program or sector/block erase
operation. A maximum of time
of “tsus” (See AC Characteristics) is required to suspend the program/erase operation.
Table 17 Commands Allowed During Program or Erase Suspend
Command Name
Code
(Hex)
Allowed
During
Erase
Suspend
Allowed
During
Program
Suspend
Comment
Write Enable
06
Yes
Required for program command within erase suspend.
Read Status Register-1 05
Yes
Yes
Needed to read WIP to determine end of suspend process.
Read Status Register-2 35
Yes
Yes
Needed to read suspend status to determine whether the operation
is suspended or complete.
Read Status Register-3 15
Yes
Yes
Needed to read suspend status to determine whether the operation
is suspended or complete.
Read Extended Addr.
Register
C8
Yes
Yes
Extended Addr. Register may need to be changed during a
suspend to reach a sector needed for read or program.
0
1
2
3
4
5
6
7
CS#
SCLK
SI
SO
8
9 10
MSB
18 19 20 21
17
6
5
4
3
2
1
0
22 23
16
26 27 28 29
25
30 31
24
7
Capacity
JDID7-JDID0
CS#
SCLK
SI
SO
MSB
Memory Type
JDID15-JDID8
6
5
4
3
2
1
0
7
11 12 13 14 15
9FH
6
5
4
3
2
1
0
7
Manufacturer ID
MSB
Command




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