MT28F320A18 Micron Technology, MT28F320A18 Datasheet - Page 18

• Manufacturer Part Number: MT28F320A18
• Description: FLASH MEMORY
• Manufacturer: Micron Technology

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lock status will be changed. After completing LOCK,
READ or PROGRAM operations, resume the ERASE
operation with the ERASE RESUME command (D0h).
erase of the same block, the locking status bits will
change immediately. But, when resumed, the erase
operation will complete.
PROGRAM SUSPEND.
sequences during ERASE SUSPEND can introduce
ambiguity into status register results.
Table 7:
2 Meg x 16, 1.8V Enhanced+ Boot Block Flash Memory
MT28F320A18_F.fm – Rev F 08/03 EN
MODE
Read (array, status registers, device
identification register, or query)
Standby
Output Disable
Reset
Write
4
Status Register Error checking
U
If a block is locked or locked down during a suspend
A locking operation cannot be performed during a
Using nested locking or program command
.com
Bus Operations
1.8V ENHANCED+ BOOT BLOCK FLASH MEMORY
RP#
V
V
V
V
V
IH
IH
IH
IH
IL
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CE#
V
V
V
V
18
X
IH
IL
IL
IL
invalid command will produce a lock command error
(SR4 and SR5 will be set to “1”) in the status register. If
a lock command error occurs during an ERASE SUS-
PEND, SR4 and SR5 will be set to “1” and will remain at
“1” after the ERASE SUSPEND is resumed. When the
ERASE is complete, any possible error during the
ERASE cannot be detected via the status register
because of the previous locking command error.
a program operation error nested within an ERASE
SUSPEND.
Following protection configuration setup (60h), an
A similar situation happens if an error occurs during
OE#
V
V
V
X
X
IH
IH
IL
WE#
V
V
X
X
X
IH
IL
ADDRESS
X
X
X
X
X
2 MEG x 16
©2003 Micron Technology Inc.
DQ0–DQ15
High-Z
High-Z
High-Z
D
D
OUT
IN