256Mb, 3V Multiple I/O Serial Flash Memory
State Table
State Table
The device can be in only one state at a time. Depending on the state of the device,
some operations as shown in the table below are allowed (Yes) and others are not (No).
For example, when the device is in the standby state, all operations except SUSPEND
are allowed in any sector. For all device states except the erase suspend state, if an oper-
ation is allowed or disallowed in one sector, it is allowed or disallowed in all other sec-
tors. In the erase suspend state, a PROGRAM operation is allowed in any sector except
the one in which an ERASE operation has been suspended.
Table 38: Operations Allowed/Disallowed During Device States
Standby
State
Program or
Erase State
Subsector Erase Suspend or
Program Suspend State
Erase Suspend
State
Operation
Notes
READ (memory)
Yes
Yes
No
Yes
Yes
Yes
Yes
1
6
READ
Yes
(status/flag status
registers)
PROGRAM
Yes
Yes
No
No
No
No
Yes/No
No
2
3
ERASE
(sector/subsector)
WRITE
Yes
Yes
No
No
No
Yes
No
Yes
No
No
Yes
No
4
5
7
WRITE
SUSPEND
1. All READ operations except READ STATUS REGISTER and READ FLAG REGISTER. When is-
sued to a sector or subsector that is simultaneously in an erase suspend state, the READ
operation is accepted, but the data output is not guaranteed until the erase has comple-
ted.
Notes:
2. All PROGRAM operations except PROGRAM OTP. In the erase suspend state, a PROGRAM
operation is allowed in any sector (Yes) except the sector (No) in which an ERASE opera-
tion has been suspended.
3. Applies to the SECTOR ERASE or SUBSECTOR ERASE operation.
4. Applies to the following operations: WRITE STATUS REGISTER, WRITE NONVOLATILE
CONFIGURATION REGISTER, PROGRAM OTP, and BULK ERASE.
5. Applies to the WRITE VOLATILE CONFIGURATION REGISTER, WRITE ENHANCED VOLA-
TILE CONFIGURATION REGISTER, WRITE ENABLE, WRITE DISABLE, CLEAR FLAG STATUS
REGISTER, WRITE EXTENDED ADDRESS REGISTER, or WRITE LOCK REGISTER operation.
6. Applies to the READ STATUS REGISTER or READ FLAG STATUS REGISTER operation.
7. Applies to the PROGRAM SUSPEND or ERASE SUSPEND operation.
CCMTD-1725822587-3368
mt25q-qljs-L256-ABA-xxT.pdf - Rev. K 07/18 EN
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