SST49LF080A datasheet(20/49 Pages) SST

20 / 49 page

Data Sheet

8 Mbit LPC Flash

SST49LF080A

S71235-00-000

4/03

SOFTWARE COMMAND SEQUENCE

TABLE 11: SOFTWARE COMMAND SEQUENCE

Command

Sequence

1st1

Cycle

1. LPC mode use consecutive Write cycles to complete a command sequence; PP mode use consecutive bus cycles to complete a

command sequence.

2nd1

Cycle

3rd1

Cycle

4th1

Cycle

5th1

Cycle

6th1

Cycle

Addr2

2. YYYY = A[31:16]. In LPC mode, during SDP command sequence, YYYY must be within memory address range specified in Table 4.

In PP mode, YYYY can be VIL or VIH, but no other value.

Data

Addr2

Data

Addr2

Data

Addr2

Data

Addr2

Data

Addr2

Data

Byte-Program

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

A0H

PA3

3. PA = Program Byte address

Data

Sector-Erase

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

80H

YYYY 5555H

AAH

YYYY 2AAAH

55H

SAX4

4. SAX for Sector-Erase Address

30H

Block-Erase

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

80H

YYYY 5555H

AAH

YYYY 2AAAH

55H

BAX5

5. BAX for Block-Erase Address

50H

Chip-Erase6

6. Chip-Erase is supported in PP mode only

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

80H

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

10H

Software

ID Entry

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

90H

Read ID7

7. SST Manufacturer’s ID = BFH, is read with A0 = 0.

With A19-A1 = 0; SST49LF080A Device ID = 5BH, is read with A0 = 1.

Software

ID Exit8

8. Both Software ID Exit operations are equivalent

XXXX XXXXH

F0H

Software

ID Exit8

YYYY 5555H

AAH

YYYY 2AAAH

55H

YYYY 5555H

F0H

T11.0 1235

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