M28W640 STMicroelectronics, M28W640 Datasheet - Page 53

• Manufacturer Part Number: M28W640
• Description: 64 Mbit 4Mb x16/ Boot Block 3V Supply Flash Memory
• Manufacturer: STMicroelectronics

Table 33. Write State Machine Current/Next, sheet 2 of 2.
Note: Cmd = Command, Elect.Sg. = Electronic Signature, Prog. = Program, Prot = Protection.
Read CFI Query Read Elect.Sg. Read CFI Query
Erase (continue)
Read CFI Query
Lock (complete) Read Elect.Sg. Read CFI Query
Lock Cmd Error
Erase Suspend
Erase Suspend
Erase Suspend
Read Elect.Sg.
Read Elect.Sg.
Read Elect.Sg.
Erase Suspend
Prog. Suspend
Prog. Suspend
Prog. Suspend
Prog. Suspend
Current State
Read Status
Read Status
Erase Setup
Read Ststus
Prog. Setup
Read Array
Lock Setup
Read Array
Read Array
Prot. Prog.
Prot. Prog.
Prot. Prog.
(complete)
(complete)
Cmd.Error
(complete)
(continue)
(continue)
Read CFI
Program
Program
Setup
Erase
Erase
Read Elect.Sg.
Erase Suspend
Erase Suspend
Erase Suspend
Erase Suspend
Read Elect.Sg. Read CFI Query
Read Elect.Sg. Read CFI Query
Read Elect.Sg. Read CFI Query
Read Elect.Sg. Read CFI Query
Read Elect.Sg. Read CFI Query
Prog. Suspend
Read Elect.Sg.
Prog. Suspend
Read Elect.Sg.
Prog. Suspend
Read Elect.Sg.
Prog. Suspend
Read Elect.Sg.
Read Elect.Sg.
Read Elect.Sg. Read CFI Query
Read Elect.Sg.
Read Elect.Sg.
Read Elect.Sg.
Read Elect.Sg.
Read Elect.Sg. Read CFI Query
(90h)
Read CFI Query
Read CFI Query
Read CFI Query
Read CFI Query
Read CFI Query
Read CFI Query
Read CFI Query
Read CFI Query
Erase Suspend
Erase Suspend
Erase Suspend
Erase Suspend
Prog. Suspend
Prog. Suspend
Prog. Suspend
Prog. Suspend
Read CFIQuery
Read CFI
Query
(98h)
Lock Command Error
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Lock Setup
Erase Command Error
Protection Register Program (continue)
(60h)
Command Input (and Next State)
Protection Register Program
Program (continue)
Erase (continue)
Program Suspend Read Array
Program Suspend Read Array
Program Suspend Read Array
Program Suspend Read Array
Setup (C0h)
Prot. Prog.
Program
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Prot. Prog.
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Erase Suspend Read Array
Erase Suspend Read Array
Erase Suspend Read Array
Erase Suspend Read Array
Lock Confirm
(01h)
M28W640CT, M28W640CB
Lock (complete)
Confirm (2Fh)
Lock Down
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
Confirm
Program
Program
Program
Program
Unlock
Erase
Erase
(D0h)
Erase
Erase
Erase
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