SST39WF400A Datasheet

IC型號(hào)：
SST39WF400A
PDF描述：
4 Mbit (x16) Multi-Purpose Flash
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芯片廠家：
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4 Mbit Multi-Purpose Flash

SST39WF400A

Data Sheet

TABLE 4: S

OFTWARE

OMMAND

EQUENCE

Command

Sequence

Word-Program

Sector-Erase

Block-Erase

Chip-Erase

CFI Query Entry

Software ID Exit

CFI Exit

Software ID Exit

CFI Exit

1st Bus

Write Cycle

Addr

5555H

XXH

5555H

Data

AAH

F0H

AAH

2AAAH

55H

5555H

F0H

T4.0 1220

2nd Bus

Write Cycle

Addr

2AAAH

Data

55H

3rd Bus

Write Cycle

Addr

5555H

Data

A0H

80H

90H

98H

4th Bus

Write Cycle

Addr

5555H

Data

AAH

5th Bus

Write Cycle

Addr

2AAAH

Data

55H

6th Bus

Write Cycle

Addr

Data

30H

50H

10H

5555H

Software ID Entry

5,6

5555H

1. Address format A

-A

(Hex), Addresses A

MS-

can be V

or V

, but no other value, for the Command sequence.

= Most significant address

= A

for SST39WF400A

2. DQ

-DQ

can be V

or V

, but no other value, for the Command sequence

3. WA = Program word address

4. SA

for Sector-Erase; uses A

-A

address lines

for Block-Erase; uses A

-A

address lines

5. The device does not remain in Software Product ID mode if powered down.

6. With A

-A

= 0; SST Manufacturer鈥檚 ID = 00BFH, is read with A

= 0,

SST39WF400A Device ID = 272FH, is read with A

= 1.

7. Both Software ID Exit operations are equivalent

TABLE 5: CFI Q

UERY

DENTIFICATION

TRING1 FOR

SST39WF400A

Address

10H

11H

12H

13H

14H

15H

16H

17H

18H

19H

1AH

Data

0051H

0052H

0059H

0001H

0007H

0000H

Data

Query Unique ASCII string 鈥淨(jìng)RY鈥?/div>

Primary OEM command set

Address for Primary Extended Table

Alternate OEM command set (00H = none exists)

Address for Alternate OEM extended Table (00H = none exits)

T5.0 1220

1. Refer to CFI publication 100 for more details.

漏2004 Silicon Storage Technology, Inc.

S71220-05-000

6/04

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