MT28F008B5 Micron Technology, MT28F008B5 Datasheet - Page 16

• Manufacturer Part Number: MT28F008B5
• Description: (MT28F008B5 / MT28F800B5) FLASH MEMORY
• Manufacturer: Micron Technology

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DataSheet
Notes: 1. Sequence may be repeated to erase additional blocks.
8Mb Smart 5 Boot Block Flash Memory
MT28F800B5_3.fm - Rev. 3, Pub. 8/2002
4
SELF-TIMED BLOCK ERASE SEQUENCE
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.com
STATUS REGISTER
ERASE Complete
Complete Status
Check (optional)
2. Complete status check is not required. However, if SR3 = 1, further ERASEs are inhibited until the status register
3. To return to the array read mode, the FFh command must be issued.
4. Refer to the ERASE SUSPEND flowchart for more information.
5. If SR3 is set during a WRITE or BLOCK ERASE attempt, CLEAR STATUS REGISTER must be issued before further
6. Status register bits 3-5 must be cleared using CLEAR STATUS REGISTER.
Block Address
WRITE D0h,
WRITE 20h
SR7 = 1?
V
is cleared.
WRITE or ERASE operations are allowed by the CEL.
Start
READ
PP
= 5V
YES
2
3
NO
Suspend ERASE?
YES
Sequence
Suspend
NO
ERASE Resumed
4
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SMART 5 BOOT BLOCK FLASH MEMORY
1
16
Start (ERASE completed)
Micron Technology, Inc. Reserves the right to change products or specifications without notice.
ERASE Successful
STATUS-CHECK SEQUENCE
COMPLETE BLOCK ERASE
SR4, 5 = 1?
SR3 = 0?
SR5 = 0?
YES
YES
NO
YES
NO
NO
V
Command Sequence Error
BLOCK ERASE Error
PP
Error
5, 6
©2002, Micron Technology Inc.
8Mb
6
6