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SST34HF1681 データシートの表示（PDF） - Silicon Storage Technology

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SST34HF1681

16 Mbit Concurrent SuperFlash + 8 Mbit SRAM ComboMemory

Silicon Storage Technology

SST34HF1681 Datasheet PDF : 30 Pages

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16 Mbit Concurrent SuperFlash + 8 Mbit SRAM ComboMemory

SST34HF1681

Advance Specifications

TABLE 4: SOFTWARE COMMAND SEQUENCE

Command

Sequence

Word-Program

Sector-Erase

Block-Erase

Chip-Erase

Software ID Entry5

CFI Query Entry5

Software ID Exit/

CFI Exit6

1st Bus

Write Cycle

Addr1 Data2

5555H AAH

2nd Bus

Write Cycle

Addr1 Data2

2AAAH 55H

3rd Bus

Write Cycle

Addr1 Data2

5555H A0H

5555H 80H

5555H 90H

5555H 98H

5555H F0H

4th Bus

Write Cycle

Addr1 Data2

WA3 Data

5555H AAH

5th Bus

Write Cycle

Addr1 Data2

2AAAH 55H

1. Address format A14-A0 (Hex),Address A19-A15 can be VIL or VIH, but no other value, for the Command sequence.

2. Data format DQ15-DQ8 can be VIL or VIH, but no other value, for Command sequence.

3. WA = Program Word address

4. SAX for Sector-Erase; uses A19-A11 address lines

BAX, for Block-Erase; uses A19-A15 address lines

5. The device does not remain in Software Product Identification Mode if powered down.

6. With A20-A1 = 0;

SST Manufacturer’s ID = 00BFH, is read with A0=0

SST34HF1681 Device ID = 2761H, is read with A0=1.

6th Bus

Write Cycle

Addr1 Data2

SAX4 30H

BAX4 50H

5555H 10H

T4.1 561

TABLE 5: CFI QUERY IDENTIFICATION STRING1

Address

10H

11H

12H

13H

14H

15H

16H

17H

18H

19H

1AH

Data

0051H

0052H

0059H

0001H

0007H

0000H

Data

Query Unique ASCII string “QRY”

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)

1. Refer to CFI publication 100 for more details.

T5.0 561

S71214-00-000 12/01 561

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