MT28C6428P20 Micron Semiconductor Products, Inc., MT28C6428P20 Datasheet - Page 13

• Manufacturer Part Number: MT28C6428P20
• Description: 4 Meg X 16 Asynchronous/page Flash 512K X 16 SRAM Combo Memory
• Manufacturer: Micron Semiconductor Products, Inc.

4 Meg x 16 Asynchronous/Page Flash 512K x 16 SRAM Combo Memory
MT28C6428P20_3.p65 – Rev. 3, Pub. 7/02
CODE DEVICE MODE
D0h
D0h
D1h
FFh
01h
2Fh
00h
Erase Confirm
Program/Erase/
Check Block Erase
Resume
Read Array
Lock Block
Lock Down
Unlock Block
Invalid/Reserved
Check Block
Erase Confirm
BUS CYCLE
Second
Second
Second
Second
Second
Command Descriptions (continued)
First
First
previously suspended, this command resumes the operation.
closes the address latches and checks that the block is completely
If the previous command was an ERASE SETUP command, then the
CSM closes the address and data latches, and it begins erasing the
block indicated on the address pins. During programming/erase, the
device responds only to the READ STATUS REGISTER, PROGRAM
SUSPEND, or ERASE SUSPEND commands and outputs status register
data on the falling edge of F_OE# or F_CE#, whichever occurs last.
If a PROGRAM, ERASE or CHECK BLOCK ERASE operation was
During the array mode, array data is output on the data bus.
If the previous command was PROTECTION CONFIGURATION SETUP,
the CSM latches the address and locks the block indicated on the
address bus.
If the previous command was PROTECTION CONFIGURATION SETUP,
the CSM latches the address and locks down the block indicated on
the address bus.
If the previous command was PROTECTION CONFIGURATION SETUP,
the CSM latches the address and unlocks the block indicated on the
address bus. If the block had been previously set to lock down, this
operation has no effect.
Unassigned command that should not be used.
If the previous command was ERASE SETUP command, the CSM
erased.
4 MEG x 16 ASYNCHRONOUS/PAGE FLASH
Table 5
13
512K x 16 SRAM COMBO MEMORY
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DESCRIPTION
©2002, Micron Technology, Inc.
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