m29f200t STMicroelectronics, m29f200t Datasheet - Page 9

• Manufacturer Part Number: m29f200t
• Description: 2 Mbit 256kb X8 Or 128kb X16, Boot Block Single Supply Flash Memory
• Manufacturer: STMicroelectronics

Table 8. Instructions
Notes: 1. Commands not interpreted in this table will default to read array mode.
RD
ES
Mne.
AS
PG
BE
CE
ER
(2,4)
(10)
(4)
2. A wait of t
3. X = Don’t Care.
4. The first cycles of the RD or AS instructions are followed by read operations. Any number of read cycles can occur after
5. Signature Address bits A0, A1 at V
6. Block Protection Address: A0 at V
7. For Coded cycles address inputs A15 and A16 are don’t care.
8. Optional, additional Blocks addresses must be entered within the erase timeout delay after last write entry,
9. Read Data Polling, Toggle bits or RB until Erase completes.
10.During Erase Suspend, Read and Data Program functions are allowed in blocks not being erased.
before starting any new operation.
the command cycles.
Device code.
timeout status can be verified through DQ3 value (see Erase Timer Bit DQ3 description).
When full command is entered, read Data Polling or Toggle bit until Erase is completed or suspended.
Read/Reset
Memory Array
Auto Select
Program
Block Erase
Chip Erase
Erase
Suspend
Erase
Resume
Instr.
PLYH
is necessary after a Read/Reset command if the memory was in an Erase or Program mode
Cyc.
1+
3+
3+
4
6
6
1
1
(1)
Addr.
Data
Addr.
Data
Addr.
Data
Addr.
Data
Addr.
Data
Addr.
Data
Addr.
Data
Addr.
Data
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
IL
IL
, A1 at V
will output Manufacturer code (20h). Address bits A0 at V
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
IH
and A12-A16 within the Block will output the Block Protection status.
1st Cyc.
AAAAh
AAAAh
AAAAh
AAAAh
AAAAh
5555h
5555h
5555h
5555h
5555h
AAh
AAh
AAh
AAh
AAh
F0h
B0h
30h
X
X
X
Read Memory Array until a new write cycle is initiated.
Read until Toggle stops, then read all the data needed from any
Block(s) not being erased then Resume Erase.
Read Data Polling or Toggle Bits until Erase completes or Erase is
suspended another time
2nd Cyc. 3rd Cyc.
2AAAh
2AAAh
2AAAh
2AAAh
2AAAh
5555h
5555h
5555h
5555h
5555h
55h
55h
55h
55h
55h
AAAAh
AAAAh
AAAAh
AAAAh
AAAAh
5555h
5555h
5555h
5555h
5555h
A0h
F0h
90h
80h
80h
Read Memory Array until a new write cycle
is initiated.
Read Electronic Signature or Block
Protection Status until a new write cycle is
initiated. See Note 5 and 6.
Program
4th Cyc.
Program
Address Read Data Polling or Toggle Bit
AAAAh
AAAAh
5555h
5555h
Data
AAh
AAh
IH
M29F200T, M29F200B
until Program completes.
and A1 at V
5th Cyc.
2AAAh
2AAAh
5555h
5555h
55h
55h
IL
6th Cyc.
Address
AAAAh
Block
5555h
will output
30h
10h
Additional
7th Cyc.
Block
Note 9
30h
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