MT28F004B5-1 Micron, MT28F004B5-1 Datasheet - Page 16

• Manufacturer Part Number: MT28F004B5-1
• Description: FLASH MEMORY
• Manufacturer: Micron

Notes: 1. Sequence may be repeated for additional BYTE or WORD WRITEs.
4Mb Smart 5 Boot Block Flash Memory
MT28F004B5_3.fm - Rev. 3, Pub. 8/2002
2. Complete status check is not required. However, if SR3 = 1, further WRITEs are inhibited until the status register
3. Device will be in status register read mode. To return to the array read mode, the FFh command must be issued.
4. If SR3 is set during a WRITE or BLOCK ERASE attempt, CLEAR STATUS REGISTER must be issued before further
5. Status register bits 3-5 must be cleared using CLEAR STATUS REGISTER.
Self-Timed WRITE Sequence
is cleared.
WRITE or ERASE operations are allowed by the CEL.
(WORD or BYTE WRITE)1
WRITE Word or Byte
WRITE 40h or 10h
STATUS REGISTER
WRITE Complete
Complete Status
Check (optional)
Address/Data
SR7 = 1?
V
READ
Start
PP
= 5V
YES
2
3
NO
SMART 5 BOOT BLOCK FLASH MEMORY
16
Start (WRITE completed)
WRITE Successful
STATUS-CHECK Sequence
SR3 = 0?
SR4 = 0?
Complete WRITE
YES
YES
NO
NO
V
BYTE/WORD WRITE Error
PP
Error
4, 5
©2002, Micron Technology Inc.
4Mb
5