M36W108 datasheet(10/35 Pages) STMICROELECTRONICS

10 / 35 page

M36W108T, M36W108B

10/35

Table 9. Flash Instructions (1)

Note: 1. Commands not interpreted in this table will default to read array mode.

2. A wait of tPLYH is necessary after a Read/Reset command if the memory was in an Erase, Erase Suspend or Program mode before

starting any new operation (see Table 14 and Figure 7).

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 the com-

mand cycles.

5. Signature Address bits A0, A1, at VIL will output Manufacturer code (20h). Address bits A0 at VIH and A1, at VIL will output Device

code.

6. Block Protection Address: A0, at VIL, A1 at VIH and A13-A19 within the Block will output the Block Protection status.

7. For Coded cycles address inputs A15-A19 are don’t care.

8. Optional, additional Blocks addresses must be entered within the erase timeout delay after last write entry, timeout status can be

verified through DQ3 value (see Erase Timer Bit DQ3 description). When full command is entered, real Data Polling or Toggle bit

until Erase is completed or suspended.

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.

Mne.

Instr.

Cyc.

1st Cyc. 2nd Cyc. 3rd Cyc. 4th Cyc.

5th Cyc.

6th Cyc.

7th Cyc.

RD (2,4)

Read/Reset

Memory

Array

Addr. (3,7)

Read Memory Array until a new write cycle is initiated.

Data

F0h

Addr. (3,7)

5555h

2AAAh

5555h

Read Memory Array until a new write cycle

is initiated.

Data

AAh

55h

F0h

AS (4)

Auto Select

Addr. (3,7)

5555h

2AAAh

5555h

Read Electronic Signature or Block

Protection Status until a new write cycle is

initiated. See Note 5 and 6.

Data

AAh

55h

90h

Program

Addr. (3,7)

5555h

2AAAh

5555h

Program

Address Read Data Polling or Toggle Bit

until Program completes.

Data

AAh

55h

A0h

Program

Data

Block Erase

Addr. (3,7)

5555h

2AAAh

5555h

2AAAh

Block

Address

Additional

Block (8)

Data

AAh

55h

80h

AAh

55h

30h

Chip Erase

Addr. (3,7)

5555h

2AAAh

5555h

2AAAh

5555h

Note 9

Data

AAh

55h

80h

AAh

55h

10h

ES (10)

Erase

Suspend

Addr. (3,7)

Read until Toggle stops, then read all the data needed from any

Block(s) not being erased then Resume Erase.

Data

B0h

Erase

Resume

Addr. (3,7)

Read Data Polling or Toggle Bits until Erase completes or Erase

is suspended another time.

Data

30h

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